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CloudScreen Products
--------------------

This section describe the structure of CloudScreen products.


CloudScreen Products: dimensions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The following dimensions are defined in CloudScreen products:

-  time
-  level
-  nv  

The dimension *time* (mandatory) specifies the number of cloudmask vertical profiles reported in the products.

The dimension *level* (mandatory) represents the number of rangebins characterizing
each cloudmask verical profile.

The dimension *nv* (mandatory) is ancillary and it is always set to 2.



CloudScreen Products: variables
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

latitude
    :Type: *double*
    :Dimensions: --
    :Variable\_Type: Mandatory
    :Description: measurement site latitude
    :Units: degrees_north		  
    :Definition: *double latitude*
		 
longitude
    :Type: *double*
    :Dimensions: --
    :Variable\_Type: Mandatory
    :Description: measurement site longitude
    :Units: degrees_east		  
    :Definition: *double longitude*

station\_altitude
   :Type: *double*
   :Dimensions: --
   :Variable\_Type: Mandatory
   :Description: station altitude above see level
   :Units: m
   :Definition: *double station\_altitude*	   
		  
altitude
   :Type: *double*
   :Dimensions: *time, level*
   :Variable\_Type: Mandatory
   :Description: altitude above see level
   :Units: m		 
   :Definition: *double altitude(time, level)*

scc\_product\_type
   :Type: *byte*
   :Dimensions: --
   :Variable\_Type: Mandatory
   :Description: Bitmask describing the SCC product type
   :Units: --
   :Definition: *byte scc\_product\_type*				

time		
   :Type: *double*
   :Dimensions: *time*
   :Variable\_Type: Mandatory	
   :Description: seconds since 1970-01-01T00:00:00Z
   :Units: --		 
   :Definition: *double time(time)* 

time\_bounds
   :Type: *double*
   :Dimensions: *time, nv*
   :Variable\_Type: Mandatory	
   :Description: seconds since 1970-01-01T00:00:00Z
   :Units: --		 
   :Definition: *double time\_bounds(time,nv)*

automatic\_cloud\_mask
   :Type: *byte*
   :Dimensions: *time, level*
   :Variable\_Type: Mandatory
   :Description: Automatic cloudmask
   :Units: --
   :Definition:	*byte automatic\_cloud\_mask(time, level)*

manual\_cloud\_mask
   :Type: *byte*
   :Dimensions: *time, level*
   :Variable\_Type: Optional
   :Description: Manual cloudmask
   :Units: --
   :Definition:	*byte manual\_cloud\_mask(time, level)*     
		

CloudScreen Products: global attributes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Conventions
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: List of the conventions the product is compliant to    
  

title
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Product title  

source
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: String describing the source used to generate the product   

references
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Reference(s) for data processing   																			    
location 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Measurement site location    

station_ID  
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Unique 3 digit code identifying SCC station   
		  
PI 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: PI full name   

PI\_affiliation 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
     :Description: PI complete affiliation    
  
PI\_affiliation_acronym 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: PI affiliation acronym   
    
PI\_address
    :Type: *string*
    :Global\_Attribute\_Type: Optional
    :Description: PI address    
 
PI\_phone 
    :Type: *string*
    :Global\_Attribute\_Type: Optional
    :Description: PI phone number    
 
PI\_email 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: PI e-mail     
   
Data\_Originator 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Data originator full name   
  
Data\_Originator\_affiliation 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Data originator complete affiliation    
 
Data\_Originator\_affiliation\_acronym 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Data originator affiliation acronym    
 
Data\_Originator\_address 
    :Type: *string*
    :Global\_Attribute\_Type: Optional
    :Description: Data originator complete address   
 
Data\_Originator\_phone 
    :Type: *string*
    :Global\_Attribute\_Type: Optional
    :Description: Data originator phone number
  
Data\_Originator\_email
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Data originator e-mail address   

institution 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Istitution the product belong to    
  
system 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Name of the measuring instrument (lidar)    
   
hoi\_system\_ID 
    :Type: *int*
    :Global\_Attribute\_Type: Mandatory
    :Description: Numeric ID identifying the measuring system in the ACTRIS/EARLINET Handbook Of Instrument (HOI)    
 
hoi\_configuration\_ID; 
    :Type: *int*
    :Global\_Attribute\_Type: Mandatory
    :Description: Numeric ID identifying the configuration of the measuring system in the ACTRIS/EARLINET Handbook Of Instrument (HOI)    
    
measurement\_ID; 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Alphanumeric identifier for the raw data measurements use to generate the product  
   
measurement\_start\_datetime 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory 
    :Description: Measurement start datetime YYYY-mm-ddTHH:MM:SSZ    
  
measurement\_stop\_datetime 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Measruement stop datetime YYYY-mm-ddTHH:MM:SSZ    
   
comment 
    :Type: *string*
    :Global\_Attribute\_Type: Optional
    :Description: Any product comments    
 
scc\_version\_description
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Extended SCC version description    
  
scc\_version 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: SCC version number    
  
processor\_name 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Name of the processor used to generate the product
		  
processor\_algorithm
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Name of the cloudmask algorithm
 
processor\_version 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Version of the processor used to generate the product   
  
history 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Field describing the history of the product    
  
\_\_file\_format_version 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Version of the product file format    
   
data\_processing\_institution 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Instituion responsible for data processing   
  
input\_file 
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Filename of the input data product used to generate the current product

automatic\_mask\_channels
    :Type: *string*
    :Global\_Attribute\_Type: Mandatory
    :Description: Channels used to generate the cloumask (SCC channel names)