ECA_ATL_NOM_1B
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of ECA_ATL_NOM_1B data.
| field name | type | dimensions | unit | description | 
|---|---|---|---|---|
| datetime | double | {time} | [seconds since 2000-01-01] | UTC time | 
| latitude | double | {time, vertical} | [degree_north] | latitude | 
| longitude | double | {time, vertical} | [degree_east] | longitude | 
| altitude | float | {time, vertical} | [m] | altitude | 
| orbit_index | int32 | absolute orbit number | ||
| backscatter_coefficient | float | {time, vertical} | [1/m/sr] | attenuated backscatter | 
| backscatter_coefficient_uncertainty | float | {time, vertical} | [1/m/sr] | attenuated backscatter | 
| index | int32 | {time} | zero-based index of the sample within the source product | 
Ingestion options
The table below lists the available ingestion options for ECA_ATL_NOM_1B products.
| option name | legal values | description | 
|---|---|---|
| data | rayleigh, mie, crosspolar | the type of backscatter profile to ingest; option values are ‘rayleigh’ (default), ‘mie’, ‘crosspolar’ | 
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/sample_latitude | 
| description | the vertical grid is inverted to make it ascending | |
| longitude | path | /ScienceData/sample_longitude | 
| description | the vertical grid is inverted to make it ascending | |
| altitude | path | /ScienceData/sample_altitude | 
| description | the vertical grid is inverted to make it ascending | |
| orbit_index | path | /HeaderData/VariableProductHeader/MainProductHeader/orbitNumber | 
| backscatter_coefficient | condition | data=rayleigh or data unset | 
| path | /ScienceData/rayleigh_attenuated_backscatter | |
| description | the vertical grid is inverted to make it ascending | |
| condition | data=mie | |
| path | /ScienceData/mie_attenuated_backscatter | |
| description | the vertical grid is inverted to make it ascending | |
| condition | data=crosspolar | |
| path | /ScienceData/crosspolar_attenuated_backscatter | |
| description | the vertical grid is inverted to make it ascending | |
| backscatter_coefficient_uncertainty | condition | data=rayleigh or data unset | 
| path | /ScienceData/rayleigh_attenuated_backscatter_total_error | |
| description | the vertical grid is inverted to make it ascending | |
| condition | data=mie | |
| path | /ScienceData/mie_attenuated_backscatter_total_error | |
| description | the vertical grid is inverted to make it ascending | |
| condition | data=crosspolar | |
| path | /ScienceData/crosspolar_attenuated_backscatter_total_error | |
| description | the vertical grid is inverted to make it ascending | |