ESACCI_OZONE_L3_NP

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of ESACCI_OZONE_L3_NP 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

float

{longitude}

[degree_east]

longitude of the grid cell center

latitude

float

{latitude}

[degree_north]

latitude of the grid cell center

pressure

float

{latitude, longitude, vertical}

[hPa]

air pressure profile

pressure_bounds

float

{latitude, longitude, vertical, 2}

[hPa]

air pressure boundaries for each profile level

O3_number_density

float

{latitude, longitude, vertical}

[molec/cm^3]

O3 number density

O3_number_density_uncertainty

float

{latitude, longitude, vertical}

[molec/cm^3]

uncertainty of the O3 number density

O3_volume_mixing_ratio

float

{latitude, longitude, vertical}

[ppmv]

O3 volume mixing ratio

O3_volume_mixing_ratio_uncertainty

float

{latitude, longitude, vertical}

[ppmv]

uncertainty of the O3 volume mixing ratio

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

/lon[]

latitude

path

/lat[]

pressure

path

/surface_pressure[], /air_pressure[]

description

repeat location independent air pressure profile (/air_pressure[]) for each grid point and replace value at the lowest level by location dependent surface pressure (/surface_pressure[])

pressure_bounds

path

/surface_pressure[], /air_pressure[]

description

repeat location independent air pressure profile (/air_pressure[]) for each grid point and replace value at the lowest level by location dependent surface pressure (/surface_pressure[]); upper and lower pressure for each profile is based on log-linear interpolation of profile (i.e. upper bound is sqrt(pressure[i+1] * pressure[i]), and lower bound is sqrt(pressure[i] * pressure[i-1])); the lower bound of level 0 is set to pressure[0] and the upper bound for level n-1 is set to pressure[n-1]

O3_number_density

path

/O3_ndens[]

O3_number_density_uncertainty

path

/O3e_ndens[]

O3_volume_mixing_ratio

path

/O3_vmr[]

O3_volume_mixing_ratio_uncertainty

path

/O3e_vmr[]