ulalume3@99: Low Resolution SCC L1 Products ulalume3@99: ============================== ulalume3@99: ulalume3@99: .. warning:: ulalume3@99: This section is still under development. ulalume3@99: ulalume3@99: ulalume3@99: Introduction ulalume3@99: ------------ ulalume3@99: ulalume3@99: The Single Calculus Chain (SCC) is the standard EARLINET tool to perform ulalume3@99: automatic and quality nchecked analysis of raw lidar data. It is ulalume3@99: composed by three different modules: ulalume3@99: ulalume3@99: - ELPP (EARLINET Lidar Pre-Processor) ulalume3@99: - ELDA (EARLINET Lidar Data Analizer) ulalume3@99: - ELDEC (EARLINET Lidar DEpolarization Calibrator) ulalume3@99: ulalume3@99: Whenever an input file containing raw lidar data has been submitted to ulalume3@99: the SCC ELPP is automatically ran on it. The ELPP module pre-processes ulalume3@99: the raw data performing all the corrections and data handling needed ulalume3@99: before the optical retrieval algorithms can be applied by ELDA module. ulalume3@99: The ELPP output files contain pre-processed range corrected signals ulalume3@99: corrected for instrumental effects as well as atmospheric molecular ulalume3@99: parameters calculated from standard model or radiosounding. Typically, ulalume3@99: the vertical and temporal resolutions of the pre-processed signals ulalume3@99: included in these files is lower than the raw vertical and temporal ulalume3@99: resolution as in general time/vertical integration is performed by ELPP ulalume3@99: to increase the SNR and allow the calculation of optical products with a ulalume3@99: reduced uncertainties. As a consequence the ELPP output files are called ulalume3@99: Low Resolution SCC L1 Products. Another SCC module (HiRELPP – High ulalume3@99: Resolution EARLINET Lidar Pre-Processor) currently under development ulalume3@99: will produce High Resolution SCC L1 Products in which both time and ulalume3@99: vertical resolution are kept as higher as possible. ulalume3@99: ulalume3@99: This document provides a detailed description about the structure and ulalume3@99: the format of Low Resolution SCC L1 Product as produced by the SCC v4.0. ulalume3@99: ulalume3@99: Low Resolution SCC L1 Product: File format ulalume3@99: ------------------------------------------ ulalume3@99: ulalume3@99: The Low Resolution SCC L1 Products are files in Network Common Data Form ulalume3@99: (NetCDF) which is a well known self-describing, machine-independent data ulalume3@99: format that support the creation, access, and sharing of array-oriented ulalume3@99: scientific data. For more information about NetCDF format: ulalume3@99: http://www.unidata.ucar.edu/software/netcdf/. ulalume3@99: ulalume3@99: The NetCDF is a binary format that allows the definition of ulalume3@99: multi-dimensional variables of several types (integers, double, ulalume3@99: character, etc). For each variable it is possible to define one or more ulalume3@99: attributes where to specify variable properties like units, long name, ulalume3@99: description, etc. ulalume3@99: ulalume3@99: It is possible to define global attributes which are not related to a ulalume3@99: specific variable but to the whole file. ulalume3@99: ulalume3@99: A NetCDF file is composed by four different section: ulalume3@99: ulalume3@101: dimensions ulalume3@99: this section contains all the dimensions used in the definition of ulalume3@99: all the variables included in the NetCDF file ulalume3@99: ulalume3@101: variables ulalume3@99: this section contains all the variables stored in the NetCDF file. ulalume3@99: Each variable is defined as a multi-dimensional array of a specific ulalume3@99: type and with all the dimensions defined in the dimensions section ulalume3@99: ulalume3@101: global attributes ulalume3@99: this section lists all the attributes referring to the whole file. As ulalume3@99: the variable the attributes (global or the one attached to a specific ulalume3@99: variable) can be of different type ulalume3@99: ulalume3@101: data ulalume3@99: in this section the data contained in each variable defined in ulalume3@99: variable section is stored. Attribute values (both global or related ulalume3@99: to a specific variable) are not reported in data section but directly ulalume3@99: in variable or global attribute sections. ulalume3@99: ulalume3@99: Each Low Resolution SCC L1 Product correspond to a single emission ulalume3@99: wavelength. For example it is possible to find in the same file the ulalume3@99: elastic and the Raman channel pre-processed time-series corresponding to ulalume3@99: the same emission wavelength (but to a different detection wavelengths) ulalume3@99: but not two elastic time-series referring to different emission ulalume3@99: wavelengths. ulalume3@99: ulalume3@99: Low Resolution SCC L1 Product Format: dimensions ulalume3@99: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ulalume3@99: ulalume3@99: The following dimensions are defined in the Low Resolution SCC L1 ulalume3@99: Product: ulalume3@99: ulalume3@99: - time ulalume3@99: - points ulalume3@99: - channels ulalume3@99: - scan\_angles ulalume3@99: ulalume3@99: The dimension *time* specifies the number of RCS (for each channel) ulalume3@99: composing all the pre-processed time-series reported in the file. ulalume3@99: ulalume3@99: The dimension *points* represents the number of rangebins characterizing ulalume3@99: the pre-processed RCS. In case RCSs corresponding to different channels ulalume3@99: are characterized by different rangebins the dimension time is to the ulalume3@99: the maximum value of rangebins. ulalume3@99: ulalume3@99: The dimension *channels* indicates the number channels at which the RCS ulalume3@99: time-series included in the file refer to. ulalume3@99: ulalume3@99: The dimension *scan\_angles* takes into account how many zenith scan ulalume3@99: angles have been used to measure the RCS time-series reported into the ulalume3@99: file ulalume3@99: ulalume3@99: ulalume3@99: Low Resolution SCC L1 Product Format: variables ulalume3@99: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ulalume3@99: ulalume3@99: In this section all the possible Low Resolution SCC L1 Product variables ulalume3@99: are reported. There are some variables that are mandatory and have to be ulalume3@99: present in all the Low Resolution SCC L1 Product files while there are ulalume3@99: others that have to be present only in specific cases. ulalume3@99: ulalume3@99: Technical Variables ulalume3@99: ################### ulalume3@99: ulalume3@99: altitude\_resolution ulalume3@99: :Type: *double* ulalume3@99: :Dimensions: *scan\_angles* ulalume3@99: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@101: :Definition: ``double altitude_resolution(scan_angles)`` ioannis@102: ulalume3@101: This variable describes the altitude resolution ulalume3@101: corresponding to the RCS time-series reported in the file. It is needed ulalume3@101: to compute the vertical scale of the RCS corresponding to each scan ulalume3@101: angle which should be calculated as it follow: ulalume3@101: ulalume3@101: .. math:: ioannis@102: ulalume3@101: H(\alpha, z)= \Delta h(\alpha)\left(z + \frac{1}{2}\right) ulalume3@101: ulalume3@101: where *z* is the altitude, :math:`\alpha` is the scan angle value and :math:`\Delta h` is the ulalume3@101: value reported by *altitude\_resolution* variable. ulalume3@99: ulalume3@101: range\_resolution ulalume3@101: :Type: *double* ulalume3@101: :Dimensions: *scan\_angles* ulalume3@101: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@101: :Definition: ``double range_resolution(scan_angles)`` ioannis@102: ulalume3@101: This variable describes the range resolution corresponding ulalume3@101: to the RCS time-series reported in the file. It is needed to compute the ulalume3@101: range scale of the RCS corresponding to each scan angle which should be ulalume3@101: calculated as it follow: ulalume3@99: ulalume3@101: .. math:: ioannis@102: ulalume3@101: R(\alpha, z)= \Delta r(\alpha)\left(r + \frac{1}{2}\right) ulalume3@101: ulalume3@101: where *r* is the range, :math:`\alpha` is the scan angle value and :math:`\Delta r` is the ulalume3@101: value reported by *range\_resolution* variable. Altitude and range ulalume3@101: resolution are the same if the scan angle is zero (zenith acquisition). ulalume3@99: ioannis@102: laser\_pointing\_angle ioannis@102: :Type: *double* ioannis@102: :Dimensions: *scan\_angles* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double laser_pointing_angle(scan_angles)`` ulalume3@99: ioannis@102: This variable provides the value of the zenith scan angles ioannis@102: used during the measurement. The value of angle are in degrees with ioannis@102: respect to the zenith direction. ulalume3@99: ioannis@102: emission\_wavelength ioannis@102: :Type: *double* ioannis@102: :Dimensions: *channels* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double emission_wavelength(channels)`` ulalume3@99: ioannis@102: This variable provides the value of the emission wavelength ioannis@102: (in nm) corresponding to each RCS time-series. ulalume3@99: ioannis@102: detection\_wavelength ioannis@102: :Type: *double* ioannis@102: :Dimensions: *channels* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double detection_wavelength(channels)`` ulalume3@99: ioannis@102: This variable provides the value of the detection ioannis@102: wavelength (in nm) corresponding to each RCS time-series. For elastic ioannis@102: channels the detection and emission wavelength are the same or slightly ioannis@102: different. ulalume3@99: ioannis@102: laser\_pointing\_angle\_of\_profiles ioannis@102: :Type: *integer* ioannis@102: :Dimensions: *time* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int laser_pointing_angle_of_profiles(time)`` ulalume3@99: ioannis@102: This variable allows to identify the zenith angle at which ioannis@102: each single RCS contained in the time-series refer to. In particular, ioannis@102: for a given time the variable ioannis@102: *laser\_pointing\_angle\_of\_profiles(time)* provides the scan angle ioannis@102: index at which all the RCS included in the file refer to at the same ioannis@102: time. To get the value of the scan angle the variable ioannis@102: *laser\_pointing\_angle* should be evaluated in correspondence of the ioannis@102: index returned by the variable ioannis@102: *laser\_pointing\_angle\_of\_profiles(time)*. ulalume3@99: ioannis@102: shots ioannis@102: :Type: *integer* ioannis@102: :Dimensions: *time* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int shots(time)`` ulalume3@99: ioannis@102: This variable report the number of laser shots that have ioannis@102: been integrated the all the RCS time-series at a given time. ulalume3@99: ioannis@102: start\_time ioannis@102: :Type: *integer* ioannis@102: :Dimensions: *time* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int start_time(time)`` ulalume3@99: ioannis@102: Variable reporting the value of the start time of each RCS ioannis@102: within all the time-series in seconds since the start of measurement. ulalume3@99: ioannis@102: stop\_time ioannis@102: :Type: *integer* ioannis@102: :Dimensions: *time* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int stop_time(time)`` ulalume3@99: ioannis@102: Variables reporting the value of the stop time of each RCS ioannis@102: within all the time-series in seconds since the start of the ioannis@102: measurement. ulalume3@99: ioannis@102: LR\_Input ioannis@102: :Type: *integer* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present only if the Low Resolution SCC L1 Product corresponds ioannis@102: to an elastic only product ioannis@102: :Definition: ``int LR_Input`` ulalume3@99: ioannis@102: This variable is only used by ELDA module in the elastic ioannis@102: only retrieval to know which value of particle lidar ratio assume in the ioannis@102: retrieval. A value of 1 means to use a fixed value stored in the SCC ioannis@102: database for each product. A value of 0 means to use a profile of lidar ioannis@102: ratio provided by the user as external file. ulalume3@99: ioannis@102: overlap\_correction ioannis@102: :Type: *integer* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int overlap_correction`` ulalume3@99: ioannis@102: This variable provides information on the overlap ioannis@102: correction of all the RCS time-series included in the file. If it is set ioannis@102: to 1 the overlap correction has been applied if it is set to null value ioannis@102: the overlap correction has not been applied. ulalume3@99: ioannis@102: cloud\_flag ioannis@102: :Type: *integer* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``int cloud_flag(time, points)`` ioannis@102: ioannis@102: variable reporting the cloud mask on the RCS time-series ioannis@102: included in the file. A value of 1 means no cloud any other values ioannis@102: different from 1 correspond to the presence of cloud. ulalume3@99: ulalume3@99: Atmospheric Molecular Variables ulalume3@99: ############################### ulalume3@99: ioannis@102: Elastic\_Mol\_Extinction ioannis@102: :Type: *double* ioannis@102: :Dimensions: *scan\_angles, points* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: *double Elastic\_Mol\_Extinction(scan\_angles, points)* ulalume3@99: ioannis@102: This variable provides the value of molecular extinction ioannis@102: coefficient at elastic wavelength in m\ :sup:`-1` at a given scan angle ioannis@102: and altitude (points). The values are calculated from standard models or ioannis@102: from radiosounding (submitted to the SCC as external input files) ulalume3@99: ioannis@102: LR\_Mol ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double LR_Mol`` ulalume3@99: ioannis@102: The value of calculated molecular lidar ratio in sr. ulalume3@99: ioannis@102: Emission\_Wave\_Mol\_Trasmissivity ioannis@102: :Type: *double* ioannis@102: :Dimensions: *scan\_angles, points* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double Emission_Wave_Mol_Trasmissivity(scan_angles, points)`` ulalume3@99: ioannis@102: This variable provides the value of molecular trasmissitivy ioannis@102: at emission wavelength at a given scan angle and altitude (*points*). ulalume3@99: ioannis@102: Detection\_Wave\_Mol\_Trasmissivity ioannis@102: :Type: *double* ioannis@102: :Dimensions: *scan\_angles, points* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: :Definition: ``double Detection_Wave_Mol_Trasmissivity(scan_angles, points)`` ioannis@102: ioannis@102: This variable provides the value of molecular trasmissitivy ioannis@102: at detection wavelength at a given scan angle and altitude (*points*). ulalume3@99: ulalume3@99: Aerosol Related Variables ulalume3@99: ######################### ulalume3@99: ioannis@102: elT ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves one ioannis@102: single elastic channel not split in near and far range ioannis@102: :Definition: ``double elT(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to an elastic channel. The RCS may correspond to a single ioannis@102: physical lidar channel or to two physical channels (one optimized for ioannis@102: the near range and the other for the far range) that have been glued by ioannis@102: ELPP module. ulalume3@99: ioannis@102: elT\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves one ioannis@102: single elastic channel not split in near and far range ioannis@102: :Definition: ``double elT_err(time, points)`` ioannis@102: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elT*. ulalume3@99: ioannis@102: elTnr ioannis@102: :Variable name: *elTnr* ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a near ioannis@102: range elastic channel ioannis@102: :Definition: ``double elTnr(time, points)`` ioannis@102: ioannis@102: This variable contains the time-series of the RCS ulalume3@99: corresponding to a near range elastic channel. If this variable is ulalume3@99: present also the corresponding *elTfr* variable should be present in ulalume3@99: the file. ulalume3@99: ioannis@102: elTnr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a near ioannis@102: range elastic channel ioannis@102: :Definition: ``double elTnr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elTnr*. ulalume3@99: ioannis@102: elTfr ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a far ioannis@102: range elastic channel ioannis@102: :Definition: ``double elTfr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to a far range elastic channel. If this variable is ioannis@102: present also the corresponding *elTnr* variable should be present in ioannis@102: the file. ulalume3@99: ioannis@102: elTfr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a far ioannis@102: range elastic channel ioannis@102: :Definition: ``double elTfr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elTfr*. ulalume3@99: ioannis@102: vrRN2 ioannis@102: :Type: * double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves one ioannis@102: vibro-rotational N2 Raman channel not split in near and far range ioannis@102: :Definition: ``double vrRN2(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to a vibro-rotational N2 Raman channel. The RCS may ioannis@102: correspond to a single physical lidar channel or to two physical ioannis@102: channels (one optimized for the near range and the other for the far ioannis@102: range) that have been glued by ELPP module. ulalume3@99: ioannis@102: vrRN2\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves one ioannis@102: vibro-rotational N2 Raman channel not split in near and far range ioannis@102: :Definition: ``double vrRN2_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *vrRN2*. ulalume3@99: ioannis@102: vrRN2nr ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a near ioannis@102: range vibro-rotational N2 Raman channel ioannis@102: :Definition: ``double vrRN2nr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to a near range vibro-rotationl N2 Raman. If this variable ioannis@102: is present also the corresponding *vrRN2fr* variable should be present ioannis@102: in the file. ulalume3@99: ioannis@102: vrRN2nr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a near ioannis@102: range vibro-rotational N2 Raman channel ioannis@102: :Definition: ``double vrRN2nr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *vrRN2nr*. ulalume3@99: ioannis@102: vrRN2fr ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a far ioannis@102: range vibro-rotational N2 Raman channel ioannis@102: :Definition: ``double vrRN2fr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to a far range vibro-rotationl N2 Raman. If this variable ioannis@102: is present also the corresponding *vrRN2nr* variable should be present ioannis@102: in the file. ulalume3@99: ioannis@102: vrRN2fr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves a far ioannis@102: range vibro-rotational N2 Raman channel ioannis@102: :Definition: ``double vrRN2fr_err(time, points)`` ioannis@102: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *vrRN2fr*. ulalume3@99: ulalume3@99: Polarization related variables ulalume3@99: ############################## ulalume3@99: ioannis@102: elPT ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels not split in near and far range ioannis@102: :Definition: ``double elPT(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the elastic polarization component which is transmitted ioannis@102: by the polarization sensitive optical subsystem. This component may ioannis@102: correspond to a total, cross or parallel polarization component ioannis@102: depending on the particular system configuration. Moreover the RCS may ioannis@102: correspond to a single physical lidar channel or to two physical ioannis@102: channels (one optimized for the near range and the other for the far ioannis@102: range) that have been glued by ELPP module. ulalume3@99: ioannis@102: elPT\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: spolarization sensitive elastic channels not split in near and far range ioannis@102: :Definition: ``double elPT_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPT*. ulalume3@99: ioannis@102: elPTnr ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPTnr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the near range elastic polarization component which is ioannis@102: transmitted by the polarization sensitive optical subsystem. This ioannis@102: component may correspond to a total, cross or parallel polarization ioannis@102: component depending on the particular system configuration. If this ioannis@102: variable is present also the corresponding *elPTfr* variable should be ioannis@102: present in the file. ulalume3@99: ioannis@102: elPTnr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPTnr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPTnr*. ulalume3@99: ioannis@102: elPTfr ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elTfr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the far range elastic polarization component which is ioannis@102: transmitted by the polarization sensitive optical subsystem. This ioannis@102: component may correspond to a total, cross or parallel polarization ioannis@102: component depending on the particular system configuration. If this ioannis@102: variable is present also the corresponding elPTnr variable should be ioannis@102: present in the file. ulalume3@99: ioannis@102: elPTfr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPTfr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPTfr*. ioannis@102: ioannis@102: elPR ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels not split in near and far range ioannis@102: :Definition: ``double elPR(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the elastic polarization component which is reflected ioannis@102: by the polarization sensitive optical subsystem. This component may ioannis@102: correspond to a total, cross or parallel polarization component ioannis@102: depending on the particular system configuration. Moreover the RCS may ioannis@102: correspond to a single physical lidar channel or to two physical ioannis@102: channels (one optimized for the near range and the other for the far ioannis@102: range) that have been glued by ELPP module. ulalume3@99: ioannis@102: elPR\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels not split in near and far range ioannis@102: :Definition: ``double elPR_err(time, points)`` ioannis@102: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPR*. ulalume3@99: ioannis@102: elPRnr ioannis@102: :Type: *double* ioannis@102: :Dimensions: * time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPTnr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the near range elastic polarization component which is ioannis@102: reflected by the polarization sensitive optical subsystem. This ioannis@102: component may correspond to a total, cross or parallel polarization ioannis@102: component depending on the particular system configuration. If this ioannis@102: variable is present also the corresponding *elPRfr* variable should be ioannis@102: present in the file. ioannis@102: ioannis@102: elPRnr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: `` double elPRnr_err(time, points)`` ioannis@102: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPRnr*. ulalume3@99: ioannis@102: elPRfr ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPRfr(time, points)`` ulalume3@99: ioannis@102: This variable contains the time-series of the RCS ioannis@102: corresponding to the far range elastic polarization component which is ioannis@102: reflected by the polarization sensitive optical subsystem. This ioannis@102: component may correspond to a total, cross or parallel polarization ioannis@102: component depending on the particular system configuration. If this ioannis@102: variable is present also the corresponding *elPRnr* variable should be ioannis@102: present in the file. ulalume3@99: ioannis@102: elPRfr\_err ioannis@102: :Type: *double* ioannis@102: :Dimensions: *time, points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double elPRfr_err(time, points)`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *elPRfr*. ulalume3@99: ioannis@102: G\_T ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T`` ulalume3@99: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: polarization transmitted channel. ulalume3@99: ioannis@102: G\_T\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_T*. ulalume3@99: ioannis@102: G\_T\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_T*. ulalume3@99: ioannis@102: H\_T ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: polarization transmitted channel. ulalume3@99: ioannis@102: H\_T\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_T*. ulalume3@99: ioannis@102: H\_T\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_T*. ulalume3@99: ioannis@102: G\_R ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R`` ulalume3@99: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: polarization reflected channel. ulalume3@99: ioannis@102: G\_R\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_R*. ulalume3@99: ioannis@102: G\_R\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: `` double G_R_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_R*. ulalume3@99: ioannis@102: H\_R ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: polarization reflected channel. ulalume3@99: ioannis@102: H\_R\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_R*. ulalume3@99: ioannis@102: H\_R\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_R*. ioannis@102: ioannis@102: Polarization\_Channel\_Gain\_Factor ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor`` ulalume3@99: ioannis@102: This variable reports the value of the gain ratio of the ioannis@102: reflected and transmitted polarization channels. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor*. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor*. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction`` ioannis@102: ioannis@102: This variable reports the value of the correction to the ioannis@102: gain ratio of the reflected and transmitted polarization channels. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Statistical_Err`` ioannis@102: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor\_Correction*. ulalume3@99: ioannis@102: G\_T\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Near_Range`` ulalume3@99: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: near range polarization transmitted channel. ulalume3@99: ioannis@102: G\_T\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_T\_Near\_Range*. ulalume3@99: ioannis@102: G\_T\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_T\_Near\_Range*. ulalume3@99: ioannis@102: H\_T\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Near_Range`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: near range polarization transmitted channel. ulalume3@99: ioannis@102: H\_T\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_T\_Near\_Range*. ulalume3@99: ioannis@102: H\_T\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_T\_Near\_Range*. ulalume3@99: ioannis@102: G\_R\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Near_Range`` ioannis@102: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: near range polarization reflected channel. ulalume3@99: ioannis@102: G\_R\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_R\_Near\_Range*. ulalume3@99: ioannis@102: G\_R\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_R\_Near\_Range*. ulalume3@99: ioannis@102: H\_R\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Near_Range`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: near range polarization reflected channel. ulalume3@99: ioannis@102: H\_R\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_R\_Near\_Range*. ulalume3@99: ioannis@102: H\_R\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_R\_Near\_Range*. ioannis@102: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Near_Range`` ulalume3@99: ioannis@102: This variable reports the value of the gain ratio of the ioannis@102: near range reflected and transmitted polarization channels. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Near\_Range\_Factor*. ioannis@102: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor\_Near\_Range*. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction\_Near\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Near_Range`` ulalume3@99: ioannis@102: This variable reports the value of the correction to the ioannis@102: near range gain ratio of the reflected and transmitted polarization ioannis@102: channels. ulalume3@99: ulalume3@99: Polarization\_Channel\_Gain\_Factor\_Correction\_Near\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Near_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable Polarization\_Channel\_Gain\_Factor\_Correction\_Near\_Range ioannis@102: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction\_Near\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves near ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Near_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor\_Correction\_Near\_Range*. ulalume3@99: ioannis@102: G\_T\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Far_Range`` ulalume3@99: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: far range polarization transmitted channel. ulalume3@99: ioannis@102: G\_T\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_T\_Far\_Range*. ulalume3@99: ioannis@102: G\_T\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_T_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_T\_Far\_Range*. ulalume3@99: ioannis@102: H\_T\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Far_Range`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: far range polarization transmitted channel. ulalume3@99: ioannis@102: H\_T\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_T\_Far\_Range*. ulalume3@99: ioannis@102: H\_T\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_T_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_T\_Far\_Range*. ulalume3@99: ioannis@102: G\_R\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Far_Range`` ioannis@102: ioannis@102: G polarization cross-talk factor value corresponding to the ioannis@102: far range polarization reflected channel. ulalume3@99: ioannis@102: G\_R\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *G\_R\_Far\_Range*. ulalume3@99: ioannis@102: G\_R\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double G_R_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *G\_R\_Far\_Range*. ulalume3@99: ioannis@102: H\_R\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Far_Range`` ulalume3@99: ioannis@102: H polarization cross-talk factor value corresponding to the ioannis@102: far range polarization reflected channel. ulalume3@99: ioannis@102: H\_R\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *H\_R\_Far\_Range*. ulalume3@99: ioannis@102: H\_R\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double H_R_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *H\_R\_Far\_Range*. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Far_Range`` ulalume3@99: ioannis@102: This variable reports the value of the gain ratio of the ioannis@102: far range reflected and transmitted polarization channels. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable ioannis@102: *Polarization\_Channel\_Gain\_Far\_Range\_Factor*. ulalume3@99: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor\_Far\_Range*. ioannis@102: ioannis@102: Polarization\_Channel\_Gain\_Factor\_Correction\_Far\_Range ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Far_Range`` ulalume3@99: ioannis@102: This variable reports the value of the correction to the ioannis@102: far range gain ratio of the reflected and transmitted polarization ioannis@102: channels. ioannis@102: ulalume3@99: Polarization\_Channel\_Gain\_Factor\_Correction\_Far\_Range\_Statistical\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Far_Range_Statistical_Err`` ulalume3@99: ioannis@102: This variable describes the statistical uncertainties ioannis@102: corresponding to the variable *Polarization\_Channel\_Gain\_Factor\_Correction\_Far\_Range*. ulalume3@99: ulalume3@99: Polarization\_Channel\_Gain\_Factor\_Correction\_Far\_Range\_Systematic\_Err ioannis@102: :Type: *double* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves far ioannis@102: range polarization sensitive elastic channels ioannis@102: :Definition: ``double Polarization_Channel_Gain_Factor_Correction_Far_Range_Systematic_Err`` ulalume3@99: ioannis@102: This variable describes the systematic uncertainties ioannis@102: corresponding to the variable ioannis@102: *Polarization\_Channel\_Gain\_Factor\_Correction\_Far\_Range*. ioannis@102: ioannis@102: Depolarization\_Calibration\_Type ioannis@102: :Type: *integer* ioannis@102: :Dimensions: N/A ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``int Depolarization_Calibration_Type`` ulalume3@99: ioannis@102: This variable describes the type of depolarization ioannis@102: calibration that has been performed. A value of 1 means automatic ioannis@102: calibration made the the SCC, a value of 2 means manual calibration ioannis@102: inserted into the SCC database. ulalume3@99: ioannis@102: Molecular\_Linear\_Depolarization\_Ratio ioannis@102: :Type: *double* ioannis@102: :Dimensions: *scan\_angles,points* ioannis@102: :Location: Present if the Low Resolution SCC L1 Product involves ioannis@102: polarization sensitive elastic channels ioannis@102: :Definition: ``double Molecular_Linear_Depolarization_Ratio(scan_angles, points)`` ioannis@102: ioannis@102: This variable report the value of molecular linear ioannis@102: depolarization ration for at given scan angles and at given altitude ioannis@102: (*points*). This profile is calculated on the base of the atmospheric ioannis@102: data from standard models or radiosonding submitted by the user as ioannis@102: separate file. ulalume3@99: ulalume3@99: The altitude scale at which each RCS within the time-series reported by ulalume3@99: the variables *elT, elTnr, elTfr, vrRN2, vrRN2nr, vrRN2fr, elPT, elPTnr, ioannis@102: elPTfr, elPR, elPRnr, elPRfr*, refer to can be obtained as:: ulalume3@99: ioannis@103: H(laser_pointing_angle_of_profiles(time),points) ulalume3@99: ioannis@102: The total signal (:math:`I_{total}`) and the volume depolarization ioannis@102: ratio (:math:`\delta`) can be calculated out of reflected (:math:`I_{R}`) and ioannis@102: transmitted (:math:`I_{T}`) polarization component intensities using ulalume3@99: the following equations: ulalume3@99: ioannis@102: .. math:: ioannis@102: ioannis@102: \delta^{*} = \frac{K}{\eta^{*}}\frac{I_R}{I_T} ioannis@102: ioannis@102: .. math:: ioannis@102: ioannis@102: \delta = \frac{\delta^{*} (G_T + H_T) - (G_R + H_R)}{(G_R - H_R) - \delta_{*}(G_T - H_T)} ioannis@102: ioannis@102: .. math:: ioannis@102: ioannis@102: I_{total} \propto \frac{\eta^{*}}{K} H_R I_T - H_T I_R ioannis@102: ioannis@102: where :math:`\eta^{*}` is the gain ratio of the reflected and transmitted ulalume3@99: polarization channels (variable *Polarization\_Channel\_Gain\_Factor*); ioannis@102: :math:`K` is the correction to the gain ratio of the reflected and transmitted ioannis@102: polarization channels (variable *Polarization\_Channel\_Gain\_Factor\_Correction*); ioannis@102: :math:`I_{R}` is the intensity of the reflected polarization component (variable *elPR*); ioannis@102: :math:`I_{T}` is the intensity of the transmitted polarization ioannis@102: component (variable *elPT*); and :math:`G_{T}`, :math:`H_{T}`, ioannis@102: :math:`G_{R}`, and :math:`H_{R}` are the polarization cross-talk ioannis@102: parameters (variables *G\_T*, *H\_T*, *G\_R*, and *H\_R*). ulalume3@99: ulalume3@99: Low Resolution SCC L1 Product Format: global attributes ulalume3@99: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ulalume3@99: ulalume3@99: In this section all the possible Low Resolution SCC L1 Product global ulalume3@99: attributes are reported. There are some global attributes that are ulalume3@99: mandatory and have to be present in all the Low Resolution SCC L1 ulalume3@99: Product files while there are others that have to be present only in ulalume3@99: specific cases. ulalume3@99: ioannis@102: Location ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The name of site where the measurements have been performed ulalume3@99: ioannis@102: System ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The name of the lidar system used to perform the ioannis@102: measurements ulalume3@99: ioannis@102: Latitude\_degrees\_north ioannis@102: :Type: *double* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The latitude (in degrees North) of the measurement site ulalume3@99: ioannis@102: Longitude\_degrees\_east ioannis@102: :Type: *double* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The longitude (in degrees East) of the measurement site ulalume3@99: ioannis@102: Altitude\_meter\_asl ioannis@102: :Type: *double* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The altitude (in m above see level) of the measurement site ulalume3@99: ioannis@102: Measurement\_ID ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: Within the SCC all the measurement sessions is identified ioannis@102: by a string called *Measurement\_ID* uniquely. This gobal attributes ioannis@102: provides this string. ulalume3@99: ioannis@102: Measurement\_Start\_Date ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The start date of the measurements. The format in which ioannis@102: this date is written is specified in the gobal attribute ioannis@102: *Measurement\_Date\_Format*. ulalume3@99: ioannis@102: Measurement\_Date\_Format ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The format in which the global attribute ioannis@102: *Measurement\_Start\_Date* is given. ioannis@102: ioannis@102: Measurement\_Start\_Time\_UT ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The start time (UT) of the measurements. The format in ioannis@102: which this time is written is specified in the global attribute ioannis@102: *Measurement\_Time\_Format*. ulalume3@99: ioannis@102: Measurement\_Time\_Format ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: The format in which the global attribute ioannis@102: *Measurement\_Start\_Time\_U*\ T is given. ulalume3@99: ioannis@102: Comments ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ulalume3@99: ioannis@102: This string can contain comments of the measurement session ulalume3@99: ioannis@102: Overlap\_File\_Name ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files for ioannis@102: which an overlap file has been submitted by the data originator. ulalume3@99: ioannis@102: The name of the overlap file to use for overlap correction. ulalume3@99: ioannis@102: LR\_File\_Name ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: corresponding to elastic only retrieval and for which an lidar ratio ioannis@102: profile file has been submitted by the data originator. ulalume3@99: ioannis@102: The name of the lidar ratio file containing the profile of ioannis@102: particle lidar ratio values to use as input in the elastic only ioannis@102: retrieval. ulalume3@99: ioannis@102: SCCPreprocessingVersion ioannis@102: :Type: *string* ioannis@102: :Location: Included in all the Low Resolution SCC L1 Product files ioannis@102: ioannis@102: The version of SCC used to produce the current Low ioannis@102: Resolution SCC L1 Product ulalume3@99: ulalume3@99: Low Resolution SCC L1 Product Filename ulalume3@99: -------------------------------------- ulalume3@99: ulalume3@99: The filename of the Low Resolution SCC L1 Products has the following ioannis@102: format:: ulalume3@99: ioannis@103: measurementid_prodid.nc ulalume3@99: ulalume3@99: The *measurementid* is a 12 characters alphanumeric string identifying ulalume3@99: the measurement session at which the product refers to. The ulalume3@99: *measurementid* (which is unique for a given measurement session) allows ulalume3@99: to fully trance the SCC analysis performed on the current product. This ulalume3@99: can be done because each measurement session is recorded in a SCC ulalume3@99: database using the same string. In the same database the measurement ulalume3@99: session is linked to the lidar configuration used to analyze the data ulalume3@99: (which is recorded and fully characterized in the SCC database providing ulalume3@99: all the channel details) and to a set of optical products to calculate. ulalume3@99: ulalume3@99: The *prodid* is a numeric string identifying the optical product that ulalume3@99: has to be calculated by SCC (in particular ELDA module) by applying the ulalume3@99: optical retrieval algorithm on the current pre-processed L1 product. ulalume3@99: ulalume3@99: Different product types are defined within the SCC. The contents of a ulalume3@99: Low Resolution SCC L1 product depends on the type of the product ulalume3@99: specified in the its filename by prodid string. In particular only the ulalume3@99: **Aerosol Related Variables **\ and\ ** Polarization related variables** ulalume3@99: specified in the section 2.2 can change depending on product type. In ulalume3@99: Tab. 3.1 are reported the product-type related variables for each ulalume3@99: optical product type. ulalume3@99: ulalume3@99: To link the *prodid* string with the corresponding product type the SCC ulalume3@99: database a proper query to the SCC database should be addressed. ulalume3@99: ulalume3@99: **Table 3.1:** Possible variables that can be found in the SCC L1 ulalume3@99: Products for each optical product type ulalume3@99: ulalume3@99: +--------------------------------------------------------------+---------------------------------------------------+ ulalume3@99: | Product type | Possible variables in Low Resolution L1 Product | ulalume3@99: +--------------------------------------------------------------+---------------------------------------------------+ ulalume3@99: | Extinction only | vrRN2, vrRN2nr, vrRN2fr | ulalume3@99: | | | ulalume3@99: | | vrRN2\_err, vrRN2nr\_err, vrRN2fr\_err | ulalume3@99: +--------------------------------------------------------------+---------------------------------------------------+ ulalume3@99: | Elastic Backscatter | elT, elTnr, elTfr | ulalume3@99: | | | ulalume3@99: | Elastic Backscatter + Particle Linear Depolarization Ratio | elT\_err, elTnr\_err, elTfr\_err | ulalume3@99: | | | ulalume3@99: | | elPR, elPRnr, elPRfr | ulalume3@99: | | | ulalume3@99: | | elPR\_err, elPRnr\_err, elPRfr\_err | ulalume3@99: | | | ulalume3@99: | | elPT, elPTnr, elPTfr | ulalume3@99: | | | ulalume3@99: | | elPT\_err, elPTnr\_err, elPTfr\_err | ulalume3@99: +--------------------------------------------------------------+---------------------------------------------------+ ulalume3@99: | Raman Backscatter | elT, elTnr, elTfr | ulalume3@99: | | | ulalume3@99: | Raman Backscatter + Particle Linear Depolarization Ratio | elT\_err, elTnr\_err, elTfr\_err | ulalume3@99: | | | ulalume3@99: | Lidar Ratio | elPR, elPRnr, elPRfr | ulalume3@99: | | | ulalume3@99: | | elPR\_err, elPRnr\_err, elPRfr\_err | ulalume3@99: | | | ulalume3@99: | | elPT, elPTnr, elPTfr | ulalume3@99: | | | ulalume3@99: | | elPT\_err, elPTnr\_err, elPTfr\_err | ulalume3@99: | | | ulalume3@99: | | vrRN2, vrRN2nr, vrRN2fr | ulalume3@99: | | | ulalume3@99: | | vrRN2\_err, vrRN2nr\_err, vrRN2fr\_err | ulalume3@99: +--------------------------------------------------------------+---------------------------------------------------+