# ESACCI_OZONE_L3_LP_MZM

## Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of `ESACCI_OZONE_L3_LP_MZM` data.

field name | type | dimensions | unit | description
--- | --- | --- | --- | ---
datetime | double | {time} | [days since 1990-01-01] | time of the measurement
latitude | double | {latitude} | [degree_north] | latitude of the bin center
altitude | double | {vertical} | [km] | approximate altitude at pressure levels computed as 16 * log10(1013 / pressure), with pressure in hPa
pressure | double | {vertical} | [hPa] | pressure
O3_volume_mixing_ratio | double | {time, latitude, vertical} | [] | monthly zonal mean ozone mixing ratio vertical profiles
O3_number_density | double | {time, latitude, vertical} | [mol/cm^3] | monthly zonal mean ozone mole concentration vertical profiles
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_centers[]
altitude | path | /approximate_altitude[]
pressure | path | /air_pressure[]
O3_volume_mixing_ratio | path | /ozone_mixing_ratio[]
O3_number_density | path | /ozone_mole_concentation[]