BEAT-II Record: SMR_L2_HNO3

Fields

The table below gives an overview of possible fields that can be returned from an ingestion of SMR_L2_HNO3 data. The 'default' column indicates whether the specified data item is included in the ingestion by default or not. You can change which data items are ingested by making use of the include and exclude filter options (see below).

field name	type	dimensions	default	description
type	string		included	reference to the type of data in this record
elements_per_profile	int32	[profile]	included
time_per_profile	double	[profile]	included	The time of the measurement (in seconds since 2000-01-01 00:00:00)
latitude_per_profile	double	[profile]	included	The center latitude for a profile
longitude_per_profile	double	[profile]	included	The center longitude for a profile
solar_zenith_angle_per_profile	double	[profile]	included	Average solar zenith angle for the scan
altitude	double	[main]	included	The altitude in km for each profile element
hno3_vmr	double	[main]	included	HNO3 volume mixing ratio
hno3_vmr_error	double	[main]	included	Precision of the HNO3 volume mixing ratio

Ingestion filter options

Ingestion filter options are passed as a ',' or ';' separated string to the ingestion function. Each filter option needs to be formulated as option_name=value[ value value] (some options accept more than one value). For example, if a product has filter options 'altitude_min' and 'time_min' you can provide a filter option string "latitude_min=30,time_min=2003-01-01" to get all measurements at or above 30km and on or after January 1st 2003.

option name	type	description
data	string	Since this record type is not the default type of data that will be ingested for a SMR_L2 product, you will have to provide a filter option data=HNO3 to get this type of record.
include	string	Provide a space-separated list of field names to ingest additional data items (i.e. fields that are not ingested by default). You can use the special case include=* to indicate that you want to ingest all available data items.
exclude	string	Provide a space-separated list of field names that you don't want ingested. Mind that the exclude filter is processed after the include filter.
time_per_profile_min	time*	Only include elements for which the value is greater than or equal to the provided filter option value
time_per_profile_max	time*	Only include elements for which the value is less than or equal to the provided filter option value
time_per_profile	time*	Only include elements that match the list of given filter option values
latitude_per_profile_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
latitude_per_profile_max	double	Only include elements for which the value is less than or equal to the provided filter option value
latitude_per_profile	double	Only include elements that match the list of given filter option values
longitude_per_profile_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
longitude_per_profile_max	double	Only include elements for which the value is less than or equal to the provided filter option value
longitude_per_profile	double	Only include elements that match the list of given filter option values
solar_zenith_angle_per_profile_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
solar_zenith_angle_per_profile_max	double	Only include elements for which the value is less than or equal to the provided filter option value
solar_zenith_angle_per_profile	double	Only include elements that match the list of given filter option values
altitude_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
altitude_max	double	Only include elements for which the value is less than or equal to the provided filter option value
altitude	double	Only include elements that match the list of given filter option values
hno3_vmr_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
hno3_vmr_max	double	Only include elements for which the value is less than or equal to the provided filter option value
hno3_vmr	double	Only include elements that match the list of given filter option values
hno3_vmr_error_min	double	Only include elements for which the value is greater than or equal to the provided filter option value
hno3_vmr_error_max	double	Only include elements for which the value is less than or equal to the provided filter option value
hno3_vmr_error	double	Only include elements that match the list of given filter option values

^* Time values can be passed as either 'yyyy-mm-dd', 'yyyy-mm-ddThh:mm:ss', 'yyyy-mm-ddThh:mm:ss.uuuuuu' or a floating point value indicating the amount of seconds since 2000-01-01 00:00:00.

Mapping description

Below a description is provided on how each data item in the ingested record was retrieved from the product.

field name	mapping description
time_per_profile	path	/GHz/Data_Vgroup/Geolocation/Time[]
	description	The time converted from TAI93 to seconds since 2000-01-01T00:00:00
latitude_per_profile	path	/GHz/Data_Vgroup/Geolocation/Latitude[]
longitude_per_profile	path	/GHz/Data_Vgroup/Geolocation/Longitude[]
solar_zenith_angle_per_profile	path	/GHz/Data_Vgroup/Geolocation/SunZD[]
altitude	path	/GHz/Data_Vgroup/Data/Altitudes[]
hno3_vmr	path	/GHz/Data_Vgroup/Data/Profiles[]
	description	The VMR is converted from ppv to ppmv
hno3_vmr_error	path	/GHz/Data_Vgroup/Data/TotalError[]
	description	The VMR error is converted from ppv to ppmv