OMI_L3_OMSO2e
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of OMI_L3_OMSO2e data.
| field name | type | dimensions | unit | description | 
|---|---|---|---|---|
| datetime_start | double | {time} | [seconds since 2000-01-01] | start time of the grid | 
| datetime_length | double | {time} | [days] | length of the grid | 
| 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) | 
| radiative_cloud_fraction | double | {time, latitude, longitude} | [] | Cloud fraction | 
| SO2_column_number_density | double | {time, latitude, longitude} | [] | SO2 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_start | path | /HDFEOS/ADDITIONAL/FILE_ATTRIBUTES@TAI93At0zOfGranule | 
| description | the time of the measurement converted from TAI93 to seconds since 2000-01-01T00:00:00 | |
| datetime_length | description | set to fixed value of 1 | 
| longitude | path | /HDFEOS/GRIDS/TotalColumnAmountSO2@GridSpacing, /HDFEOS/GRIDS/TotalColumnAmountSO2@NumberOfLongitudesInGrid | 
| description | a uniformly increasing sequence on the interval (-180, 180) | |
| latitude | path | /HDFEOS/GRIDS/TotalColumnAmountSO2@GridSpacing, /HDFEOS/GRIDS/TotalColumnAmountSO2@NumberOfLatitudesInGrid | 
| description | a uniformly increasing sequence on the interval (-90, 90) | |
| radiative_cloud_fraction | path | /HDFEOS/GRIDS/TotalColumnAmountSO2/Data_Fields/CloudRadianceFraction[] | 
| SO2_column_number_density | path | /HDFEOS/GRIDS/TotalColumnAmountSO2/Data_Fields/ColumnAmountSO2[] |