ECA_ATL_ALD_2A
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of ECA_ATL_ALD_2A data.
field name |
type |
dimensions |
unit |
description |
|---|---|---|---|---|
datetime |
double |
{time} |
[seconds since 2000-01-01] |
UTC time |
latitude |
double |
{time} |
[degree_north] |
Geodetic latitude |
longitude |
double |
{time} |
[degree_east] |
Geodetic longitude |
orbit_index |
int32 |
absolute orbit number |
||
altitude_bounds |
float |
{time, vertical, 2} |
[m] |
aerosol layer base and top |
aerosol_optical_depth |
float |
{time, vertical} |
[] |
aerosol layer optical thickness 355nm |
aerosol_optical_depth_uncertainty |
float |
{time, vertical} |
[] |
aerosol layer optical thickness 355nm error |
aerosol_extinction_coefficient |
float |
{time, vertical} |
[1/m] |
aerosol layer mean extinction 355nm |
aerosol_extinction_coefficient_uncertainty |
float |
{time, vertical} |
[1/m] |
aerosol layer mean extinction 355nm error |
aerosol_backscatter_coefficient |
float |
{time, vertical} |
[1/m/sr] |
aerosol layer mean backscatter 355nm |
aerosol_backscatter_coefficient_uncertainty |
float |
{time, vertical} |
[1/m/sr] |
aerosol layer mean backscatter 355nm error |
lidar_ratio |
float |
{time, vertical} |
[sr] |
aerosol layer mean lidar ratio 355nm |
lidar_ratio_uncertainty |
float |
{time, vertical} |
[sr] |
aerosol layer mean lidar ratio 355nm error |
linear_depolarization_ratio |
float |
{time, vertical} |
[] |
aerosol layer mean depolarization ratio 355nm |
linear_depolarization_ratio_uncertainty |
float |
{time, vertical} |
[] |
aerosol layer mean depolarization ratio 355nm error |
validity |
int8 |
{time} |
quality status |
|
wavelength |
float |
[nm] |
lidar wavelength |
|
index |
int32 |
{time} |
zero-based index of the sample within the source product |
Mapping description
The table below details where and how each variable was retrieved from the input product.
field name |
mapping description |
|
|---|---|---|
datetime |
path |
/ScienceData/time |
latitude |
path |
/ScienceData/latitude |
longitude |
path |
/ScienceData/longitude |
orbit_index |
path |
/HeaderData/VariableProductHeader/MainProductHeader/orbitNumber |
altitude_bounds |
path |
/ScienceData/aerosol_layer_base, /ScienceData/aerosol_layer_top, /ScienceData/geoid_offset |
description |
the vertical grid is inverted to make it ascending; altitude_bounds[i,j,0] = aerosol_layer_base[i,j] - geoid_offset[i]; altitude_bounds[i,j,1] = aerosol_layer_top[i,j] - geoid_offset[i] |
|
aerosol_optical_depth |
path |
/ScienceData/aerosol_layer_optical_thickness_355nm |
description |
the vertical grid is inverted to make it ascending |
|
aerosol_optical_depth_uncertainty |
path |
/ScienceData/aerosol_layer_optical_thickness_355nm_error |
description |
the vertical grid is inverted to make it ascending |
|
aerosol_extinction_coefficient |
path |
/ScienceData/aerosol_layer_mean_extinction_355nm |
description |
the vertical grid is inverted to make it ascending |
|
aerosol_extinction_coefficient_uncertainty |
path |
/ScienceData/aerosol_layer_mean_extinction_355nm_error |
description |
the vertical grid is inverted to make it ascending |
|
aerosol_backscatter_coefficient |
path |
/ScienceData/aerosol_layer_mean_backscatter_355nm |
description |
the vertical grid is inverted to make it ascending |
|
aerosol_backscatter_coefficient_uncertainty |
path |
/ScienceData/aerosol_layer_mean_backscatter_355nm_error |
description |
the vertical grid is inverted to make it ascending |
|
lidar_ratio |
path |
/ScienceData/aerosol_layer_mean_lidar_ratio_355nm |
description |
the vertical grid is inverted to make it ascending |
|
lidar_ratio_uncertainty |
path |
/ScienceData/aerosol_layer_mean_lidar_ratio_355nm_error |
description |
the vertical grid is inverted to make it ascending |
|
linear_depolarization_ratio |
path |
/ScienceData/aerosol_layer_mean_depolarisation_355nm |
description |
the vertical grid is inverted to make it ascending |
|
linear_depolarization_ratio_uncertainty |
path |
/ScienceData/aerosol_layer_mean_depolarisation_355nm_error |
description |
the vertical grid is inverted to make it ascending |
|
validity |
path |
/ScienceData/quality_status |
wavelength |
description |
set to fixed value of 355nm |