docs/file_formats/low_resolution.rst

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54 It is possible to define global attributes which are not related to a 54 It is possible to define global attributes which are not related to a
55 specific variable but to the whole file. 55 specific variable but to the whole file.
56 56
57 A NetCDF file is composed by four different section: 57 A NetCDF file is composed by four different section:
58 58
59 - dimensions 59 dimensions
60
61 this section contains all the dimensions used in the definition of 60 this section contains all the dimensions used in the definition of
62 all the variables included in the NetCDF file 61 all the variables included in the NetCDF file
63 62
64 - variables 63 variables
65
66 this section contains all the variables stored in the NetCDF file. 64 this section contains all the variables stored in the NetCDF file.
67 Each variable is defined as a multi-dimensional array of a specific 65 Each variable is defined as a multi-dimensional array of a specific
68 type and with all the dimensions defined in the dimensions section 66 type and with all the dimensions defined in the dimensions section
69 67
70 global attributes 68 global attributes
71
72 this section lists all the attributes referring to the whole file. As 69 this section lists all the attributes referring to the whole file. As
73 the variable the attributes (global or the one attached to a specific 70 the variable the attributes (global or the one attached to a specific
74 variable) can be of different type 71 variable) can be of different type
75 72
76 - data 73 data
77
78 in this section the data contained in each variable defined in 74 in this section the data contained in each variable defined in
79 variable section is stored. Attribute values (both global or related 75 variable section is stored. Attribute values (both global or related
80 to a specific variable) are not reported in data section but directly 76 to a specific variable) are not reported in data section but directly
81 in variable or global attribute sections. 77 in variable or global attribute sections.
82 78
125 Technical Variables 121 Technical Variables
126 ################### 122 ###################
127 123
128 altitude\_resolution 124 altitude\_resolution
129 :Type: *double* 125 :Type: *double*
130 :Number of dimensions: 1
131 :Dimensions: *scan\_angles* 126 :Dimensions: *scan\_angles*
132 :Location: Included in all the Low Resolution SCC L1 Product files 127 :Location: Included in all the Low Resolution SCC L1 Product files
133 :NetCDF definition: *double altitude\_resolution(scan\_angles)* 128 :Definition: ``double altitude_resolution(scan_angles)``
134 :Description: this variable describes the altitude resolution 129 This variable describes the altitude resolution
135 corresponding to the RCS time-series reported in the file. It is needed 130 corresponding to the RCS time-series reported in the file. It is needed
136 to compute the vertical scale of the RCS corresponding to each scan 131 to compute the vertical scale of the RCS corresponding to each scan
137 angle which should be calculated as it follow: 132 angle which should be calculated as it follow:
138 133
139 where *z* is the altitude, ** is the scan angle value and *h* is the 134 .. math::
140 value reported by *altitude\_resolution* variable. 135
141 136 H(\alpha, z)= \Delta h(\alpha)\left(z + \frac{1}{2}\right)
142 - Variable name: *range\_resolution* 137
143 138 where *z* is the altitude, :math:`\alpha` is the scan angle value and :math:`\Delta h` is the
144 :Type: *double* 139 value reported by *altitude\_resolution* variable.
145 :Number of dimensions: 1 140
146 :Dimensions: *scan\_angles* 141 range\_resolution
147 :Location: Included in all the Low Resolution SCC L1 Product files 142 :Type: *double*
148 :NetCDF definition: *double range\_resolution(scan\_angles)* 143 :Dimensions: *scan\_angles*
149 :Description: this variable describes the range resolution corresponding 144 :Location: Included in all the Low Resolution SCC L1 Product files
150 to the RCS time-series reported in the file. It is needed to compute the 145 :Definition: ``double range_resolution(scan_angles)``
151 range scale of the RCS corresponding to each scan angle which should be 146 This variable describes the range resolution corresponding
152 calculated as it follow: 147 to the RCS time-series reported in the file. It is needed to compute the
153 148 range scale of the RCS corresponding to each scan angle which should be
154 where *r* is the range, ** is the scan angle value and *r* is the 149 calculated as it follow:
155 value reported by *range\_resolution* variable. Altitude and range 150
156 resolution are the same if the scan angle is zero (zenith acquisition). 151 .. math::
152
153 R(\alpha, z)= \Delta r(\alpha)\left(r + \frac{1}{2}\right)
154
155 where *r* is the range, :math:`\alpha` is the scan angle value and :math:`\Delta r` is the
156 value reported by *range\_resolution* variable. Altitude and range
157 resolution are the same if the scan angle is zero (zenith acquisition).
157 158
158 - Variable name: *laser\_pointing\_angle* 159 - Variable name: *laser\_pointing\_angle*
159 160
160 :Type: *double* 161 :Type: *double*
161 :Number of dimensions: 1 162 :Number of dimensions: 1

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