AEOLUS_L1B_Rayleigh_Observation
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of AEOLUS_L1B_Rayleigh_Observation data.
field name |
type |
dimensions |
unit |
description |
|---|---|---|---|---|
datetime_start |
double |
{time} |
[seconds since 2000-01-01] |
start time of the observation |
datetime_length |
double |
{time} |
[s] |
duration of the observation |
orbit_index |
int32 |
absolute orbit number |
||
latitude |
double |
{time, vertical} |
[degree_north] |
average of the latitudes of the edges of the height bin |
longitude |
double |
{time, vertical} |
[degree_east] |
average of the longitude of the edges of the height bin |
altitude_bounds |
double |
{time, vertical, 2} |
[m] |
altitude boundaries of the height bin |
geoid_height |
double |
{time} |
[m] |
Geoid separation |
sensor_azimuth_angle |
double |
{time, vertical} |
[degree] |
average of the edges of the height bin of the azimuth of target-to-satellite topocentric pointing vector |
sensor_elevation_angle |
double |
{time, vertical} |
[degree] |
average of the edges of the height bin of the elevation of target-to-satellite topocentric pointing vector |
hlos_wind_velocity |
double |
{time, vertical} |
[m/s] |
HLOS wind velocity at the altitude bin |
hlos_wind_velocity_validity |
int32 |
{time, vertical} |
quality flag of the HLOS wind velocity at the altitude bin |
|
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_L1B products.
option name |
legal values |
description |
|---|---|---|
data |
rayleigh_measurement, mie_measurement, rayleigh_observation, mie_observation |
the type of wind profile to ingest; option values are ‘rayleigh_observation’ (default), ‘mie_observation’, ‘rayleigh_measurement’, ‘mie_measurement’ |
This definition is only applicable when: data=rayleigh_observation 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 |
/geolocation[]/start_of_observation_time |
datetime_length |
description |
set to fixed value of 12 seconds |
orbit_index |
path |
/mph/abs_orbit |
latitude |
path |
/geolocation[]/observation_geolocation[]/observation_rayleigh_geolocation[]/latitude_of_height_bin |
description |
average of the value at the upper and lower edge of the height bin |
|
longitude |
path |
/geolocation[]/observation_geolocation[]/observation_rayleigh_geolocation[]/longitude_of_height_bin |
description |
average of the value at the upper and lower edge of the height bin |
|
altitude_bounds |
path |
/geolocation[]/observation_geolocation[]/observation_rayleigh_geolocation[]/altitude_of_height_bin, /geolocation[]/observation_geolocation/geoid_separation |
description |
altitude_of_height_bin minus geoid_separation (because altitude_of_height_bin is wrt WGS84) |
|
geoid_height |
path |
/geolocation[]/observation_geolocation/geoid_separation |
sensor_azimuth_angle |
path |
/geolocation[]/observation_geolocation[]/observation_rayleigh_geolocation[]/topocentric_azimuth_of_height_bin |
description |
average of the value at the upper and lower edge of the height bin |
|
sensor_elevation_angle |
path |
/geolocation[]/observation_geolocation[]/observation_rayleigh_geolocation[]/topocentric_elevation_of_height_bin |
description |
average of the value at the upper and lower edge of the height bin |
|
hlos_wind_velocity |
path |
/wind_velocity[]/observation_wind_profile[]/rayleigh_altitude_bin_wind_info[]/wind_velocity |
hlos_wind_velocity_validity |
path |
/wind_velocity[]/observation_wind_profile[]/rayleigh_altitude_bin_wind_info[]/bin_quality_flag |