# ESACCI_AEROSOL_L3_AATSR

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `ESACCI_AEROSOL_L3_AATSR` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
latitude | double | {latitude} | [degree_north] | latitude of the ground pixel center
longitude | double | {longitude} | [degree_east] | longitude of the ground pixel center
aerosol_optical_depth | double | {spectral, latitude, longitude} | [] | aerosol optical depth
aerosol_optical_depth_uncertainty | double | {spectral, latitude, longitude} | [] | uncertainty of the aerosol optical depth
wavelength | double | {spectral} | [nm] | wavelengths of the measurements
sensor_zenith_angle | double | {latitude, longitude} | [degree] | sensor zenith angle
solar_zenith_angle | double | {latitude, longitude} | [degree] | solar zenith angle

## Mapping description

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

field name | mapping description
--- | ---
latitude | path | /latitude[]
longitude | path | /longitude[]
aerosol_optical_depth | path | /AOD550_mean[], /AOD670_mean[], /AOD870_mean[], /AOD1600_mean[]
description | depending on how the data is processed, data is not always available for all wavelengths. If the data is not available, NaN values are used.
aerosol_optical_depth_uncertainty | path | /AOD550_sdev[], /AOD670_sdev[], /AOD870_sdev[], /AOD1600_sdev[]
description | depending on how the data is processed, uncertainty data is not always available for all wavelengths. If the data is not available, NaN values are used.
wavelength | description | fixed values
sensor_zenith_angle | available | optional
path | /satellite_zenith_mean[]
solar_zenith_angle | available | optional
path | /sun_zenith_mean[]