AEOLUS_L2B_Rayleigh — HARP 1.29 documentation

# AEOLUS_L2B_Rayleigh

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `AEOLUS_L2B_Rayleigh` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
datetime_start | double | {time} | [seconds since 2000-01-01] | datetime of the first measurement used for the wind profile
datetime | double | {time} | [seconds since 2000-01-01] | average datetime of the measurements used for the wind profile
datetime_stop | double | {time} | [seconds since 2000-01-01] | datetime of the last measurements used for the wind profile
orbit_index | int32 |  |  | absolute orbit number
latitude | double | {time} | [degree_north] | average latitude of the measurements used for the wind profile
longitude | double | {time} | [degree_east] | average longitude of the measurements used for the wind profile
altitude | double | {time, vertical} | [m] | vertical COG altitude relative to geoid for each accumulation
altitude_bounds | double | {time, vertical, 2} | [m] | altitude relative to geoid of layer boundaries for each accumulation
sensor_azimuth_angle | double | {time, vertical} | [degree] | Topocentric Azimuth of the target-to-satellite pointing vector measured clockwise from north
sensor_elevation_angle | double | {time, vertical} | [degree] | Elevation of the target-to-satellite pointing vector to the VCOG of the range bin
hlos_wind_velocity | double | {time, vertical} | [cm/s] | HLOS wind velocity
hlos_wind_velocity_validity | int8 | {time, vertical} |  | validity flag of the HLOS wind velocity
index | int32 | {time} |  | zero-based index of the sample within the source product

## Ingestion options

The table below lists the available ingestion options for `AEOLUS_L2B` products.

option name | legal values | description
--- | --- | ---
data | rayleigh, mie | the type of profiles to ingest; option values are ‘rayleigh’ (default), ‘mie’

This definition is only applicable when: data=rayleigh or data unset

## Mapping description

The table below details where and how each variable was retrieved from the input product.

field name | mapping description
--- | ---
datetime_start | path | /rayleigh_profile[]/profile_datetime_start
datetime | path | /rayleigh_profile[]/profile_datetime_average
datetime_stop | path | /rayleigh_profile[]/profile_datetime_stop
orbit_index | path | /mph/abs_orbit
latitude | path | /rayleigh_profile[]/profile_lat_average
longitude | path | /rayleigh_profile[]/profile_lon_average
altitude | path | /rayleigh_geolocation[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult_geolocation/altitude_vcog
altitude_bounds | path | /rayleigh_geolocation[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult_geolocation/altitude_bottom, /rayleigh_geolocation[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult_geolocation/altitude_top
sensor_azimuth_angle | path | /rayleigh_geolocation[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult_geolocation/los_azimuth
sensor_elevation_angle | path | /rayleigh_geolocation[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult_geolocation/los_elevation_vcog
hlos_wind_velocity | path | /rayleigh_hloswind[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult/rayleigh_wind_velocity
hlos_wind_velocity_validity | path | /rayleigh_hloswind[/rayleigh_profile/l2b_wind_profies/wind_result_id_number - 1]/windresult/validity_flag