OMI_L3_OMDOAO3e — HARP 1.16 documentation

# OMI_L3_OMDOAO3e

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `OMI_L3_OMDOAO3e` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
datetime | double | {time} | [seconds since 2000-01-01] | time of the measurement
longitude | double | {longitude} | [degree_east] | longitude of the grid cell mid-point (WGS84)
latitude | double | {latitude} | [degree_north] | latitude of the grid cell mid-point (WGS84)
cloud_fraction | double | {time, latitude, longitude} | [] | cloud fraction
cloud_fraction_uncertainty | double | {time, latitude, longitude} | [] | uncertainty of the cloud fraction
cloud_pressure | double | {time, latitude, longitude} | [hPa] | cloud pressure
cloud_pressure_uncertainty | double | {time, latitude, longitude} | [hPa] | uncertainty of the cloud pressure
O3_column_number_density | double | {time, latitude, longitude} | [DU] | O3 column number density
O3_column_number_density_uncertainty | double | {time, latitude, longitude} | [DU] | uncertainty of the O3 column number density
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 | /HDFEOS/ADDITIONAL/FILE_ATTRIBUTES@TAI93At0zOfGranule
description | the time of the measurement converted from TAI93 to seconds since 2000-01-01T00:00:00
longitude | path | /HDFEOS/GRIDS/ColumnAmountO3@GridSpacing, /HDFEOS/GRIDS/ColumnAmountO3@NumberOfLongitudesInGrid
description | a uniformly increasing sequence on the interval (-180, 180)
latitude | path | /HDFEOS/GRIDS/ColumnAmountO3@GridSpacing, /HDFEOS/GRIDS/ColumnAmountO3@NumberOfLatitudesInGrid
description | a uniformly increasing sequence on the interval (-90, 90)
cloud_fraction | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/CloudFraction[]
cloud_fraction_uncertainty | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/CloudFractionPrecision[]
cloud_pressure | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/CloudPressure[]
cloud_pressure_uncertainty | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/CloudPressurePrecision[]
O3_column_number_density | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/ColumnAmountO3[]
O3_column_number_density_uncertainty | path | /HDFEOS/GRIDS/ColumnAmountO3/Data_Fields/ColumnAmountO3Precision[]