# ESACCI_AEROSOL_L2_IASI

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of ESACCI_AEROSOL_L2_IASI data.

field name

type

dimensions

unit

description

datetime

double

{time}

[seconds since 2000-01-01]

time of the measurement

latitude

double

{time}

[degree_north]

latitude of the ground pixel center

longitude

double

{time}

[degree_east]

longitude of the ground pixel center

dust_aerosol_optical_depth

double

{time, spectral}

[]

dust aerosol optical depth

dust_aerosol_optical_depth_uncertainty

double

{time, spectral}

[]

uncertainty of the dust aerosol optical depth

wavelength

double

{time, spectral}

[nm]

wavelengths of the measurements

sensor_zenith_angle

double

{time}

[degree]

sensor zenith angle

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

/time[]

latitude

path

/latitude[]

longitude

path

/longitude[]

dust_aerosol_optical_depth

condition

data processed by DLR or ULB

path

/D_AOD550[], /D_AOD10000[], /D_AOD11000[]

condition

data processed by LMD

path

/Daod550[], /Daod10000[], /Daod11000[]

dust_aerosol_optical_depth_uncertainty

condition

data processed by DLR

path

/D_AOD11000_uncertainty[]

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.

condition

data processed by LMD

path

/Daod10000_uncertainty[]

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.

condition

data processed by DLR

path

/D_AOD10000_uncertainty[]

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

condition

data processed by DLR or ULB

path

/satellite_zenith_at_center[]

condition

data processed by LMD

path

/satellite_zenith[]