# ESACCI_OZONE_L3_TC

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `ESACCI_OZONE_L3_TC` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
datetime_start | double | {time} | [seconds since 2000-01-01] | time coverage start
datetime_stop | double | {time} | [seconds since 2000-01-01] | time coverage end
longitude | double | {longitude} | [degree_east] | longitude of the grid cell center
latitude | double | {latitude} | [degree_north] | latitude of the grid cell center
O3_column_number_density | double | {latitude, longitude} | [DU] | O3 total 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 | /@time_coverage_start
description | datetime converted from a start date to seconds since 2000-01-01
datetime_stop | path | /@time_coverage_end
description | datetime converted from an end date to seconds since 2000-01-01
longitude | path | /longitude[]
latitude | path | /latitude[]
O3_column_number_density | path | /atmosphere_mole_content_of_ozone[]