GOMOS_L2

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of GOMOS_L2 data.

field name

type

dimensions

unit

description

datetime

double

{time}

[seconds since 2000-01-01]

time of the profile

datetime_start

double

{time}

[seconds since 2000-01-01]

start time of the profile

datetime_stop

double

{time}

[seconds since 2000-01-01]

stop time of the profile

orbit_index

int32

absolute orbit number

altitude

double

{time, vertical}

[m]

altitude

latitude

double

{time, vertical}

[degree_north]

latitude

longitude

double

{time, vertical}

[degree_east]

longitude

O3_number_density

double

{time, vertical}

[molec/cm3]

Ozone local density

O3_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the ozone local density

O3_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the ozone local density

NO2_number_density

double

{time, vertical}

[molec/cm3]

NO2 local density

NO2_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the NO2 local density

NO2_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the NO2 local density

NO3_number_density

double

{time, vertical}

[molec/cm3]

NO3 local density

NO3_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the NO3 local density

NO3_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the NO3 local density

O2_number_density

double

{time, vertical}

[molec/cm3]

O2 local density

O2_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the O2 local density

O2_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the O2 local density

H2O_number_density

double

{time, vertical}

[molec/cm3]

H2O local density

H2O_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the H2O local density

H2O_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the H2O local density

OClO_number_density

double

{time, vertical}

[molec/cm3]

OClO local density

OClO_number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the OClO local density

OClO_number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the OClO local density

aerosol_extinction_coefficient

double

{time, vertical}

[1/km]

aerosol extinction coefficient

aerosol_extinction_coefficient_uncertainty

double

{time, vertical}

[1/km]

standard deviation for the aerosol extinction coefficient

pressure

double

{time, vertical}

[Pa]

atmospheric pressure from external model

temperature

double

{time, vertical}

[K]

temperature

temperature_uncertainty

double

{time, vertical}

[K]

standard deviation for the local temperature

number_density

double

{time, vertical}

[molec/cm3]

air density

number_density_uncertainty

double

{time, vertical}

[molec/cm3]

standard deviation for the local air density

number_density_validity

int16

{time, vertical}

PCD (product confidence data) value for the local air density

sensor_altitude

double

{time, vertical}

[m]

altitude of the satellite

sensor_latitude

double

{time, vertical}

[degree_north]

latitude of the satellite position

sensor_longitude

double

{time, vertical}

[degree_east]

longitude of the satellite position

scene_type

int8

{time}

illumination condition for the profile; enumeration values: dark (0), bright (1), twilight (2), straylight (3), twilight_straylight (4)

index

int32

{time}

zero-based index of the sample within the source product

Ingestion options

The table below lists the available ingestion options for GOMOS_L2 products.

option name

legal values

description

temperature

model

retrieve the locally measured temperature (default) or the temperature from the external model (temperature=model)

air

model

retrieve the locally measured air density (default) or the air density from the external model (air=model)

Mapping description

GOMOS Level 2 products only contain a single profile; all measured profile points will be provided in reverse order (from low altitude to high altitude) in the profile

The table below details where and how each variable was retrieved from the input product.

field name

mapping description

datetime

path

/nl_geolocation[]/dsr_time

description

time of mid record

datetime_start

path

/nl_geolocation[]/dsr_time

description

time of first record

datetime_stop

path

/nl_geolocation[]/dsr_time

description

time of last record

orbit_index

path

/mph/abs_orbit

altitude

path

/nl_geolocation[]/tangent_alt

latitude

path

/nl_geolocation[]/tangent_lat

longitude

path

/nl_geolocation[]/tangent_long

O3_number_density

path

/nl_local_species_density[]/o3

O3_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/o3_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/o3_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

O3_number_density_validity

path

/nl_local_species_density[]/pcd[0]

NO2_number_density

path

/nl_local_species_density[]/no2

NO2_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/no2_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/no2_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

NO2_number_density_validity

path

/nl_local_species_density[]/pcd[1]

NO3_number_density

path

/nl_local_species_density[]/no3

NO3_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/no3_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/no3_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

NO3_number_density_validity

path

/nl_local_species_density[]/pcd[2]

O2_number_density

path

/nl_local_species_density[]/o2

O2_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/o2_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/o2_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

O2_number_density_validity

path

/nl_local_species_density[]/pcd[4]

H2O_number_density

path

/nl_local_species_density[]/h2o

H2O_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/h2o_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/h2o_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

H2O_number_density_validity

path

/nl_local_species_density[]/pcd[5]

OClO_number_density

path

/nl_local_species_density[]/oclo

OClO_number_density_uncertainty

condition

CODA product version < 2

path

/nl_local_species_density[]/oclo_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

CODA product version >= 2

path

/nl_local_species_density[]/oclo_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

OClO_number_density_validity

path

/nl_local_species_density[]/pcd[6]

aerosol_extinction_coefficient

path

/nl_aerosols[]/local_ext

aerosol_extinction_coefficient_uncertainty

path

/nl_aerosols[]/local_ext_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

pressure

path

/nl_geolocation[]/tangent_atm_p

temperature

condition

temperature unset

path

/nl_geolocation[]/local_temp

condition

temperature=model

path

/nl_geolocation[]/tangent_temp

temperature_uncertainty

available

optional

condition

temperature unset

path

/nl_geolocation[]/local_temp_std

number_density

available

optional

condition

air unset

path

/nl_local_species_density[]/air

condition

air=model and CODA product version > 0

path

/nl_geolocation[]/tangent_density

number_density_uncertainty

available

optional

condition

air unset and CODA product version < 2

path

/nl_local_species_density[]/air_std

description

values equal to 6553.5% will be set to NaN; value will be converted to an uncertainty by multiplying with the absolute value of the measured concentration

condition

air unset and CODA product version >= 2

path

/nl_local_species_density[]/air_std

description

values equal to 6554 will be set to NaN; value will be converted to an uncertainty by using the log10(v)/0.005 conversion

number_density_validity

available

optional

condition

air unset

path

/nl_local_species_density[]/pcd[3]

sensor_altitude

path

/nl_geolocation[]/tangent_alt

sensor_latitude

path

/nl_geolocation[]/lat

sensor_longitude

path

/nl_geolocation[]/longit

scene_type

condition

CODA product version 0

path

/nl_summary_quality[0]/limb_flag

condition

CODA product version 1 and higher

path

/nl_summary_quality[0]/obs_illum_cond