EARLINET

Variables

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

field name

type

dimensions

unit

description

datetime

double

{time}

[seconds since 2000-01-01]

time of measurement

datetime_length

double

{time}

[s]

length of the measurement

latitude

double

[degrees]

latitude

longitude

double

[degrees]

longitude

sensor_altitude

double

[m]

sensor altitude

viewing_zenith_angle

double

[degrees]

viewing zenith angle

wavelength

double

[nm]

wavelength

altitude

double

{vertical}

[m]

altitude

dust_aerosol_top_height

double

{time}

[m]

dust layer top height

backscatter_coefficient

double

{time, vertical}

[1/(m*sr)]

backscatter coefficient

backscatter_coefficient_uncertainty

double

{time, vertical}

[1/(m*sr)]

backscatter coefficient uncertainty

extinction_coefficient

double

{time, vertical}

[1/m]

extinction coefficient

extinction_coefficient_uncertainty

double

{time, vertical}

[1/m]

extinction coefficient uncertainty

H2O_mass_mixing_ratio

double

{time, vertical}

[g/kg]

water mass mixing ratio

H2O_mass_mixing_ratio_uncertainty

double

{time, vertical}

[g/kg]

water mass mixing ratio uncertainty

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

condition

variable ‘Time’ available

path

/Time

description

converted from seconds sinds 1970 to seconds since 2000

condition

variable ‘Time’ unavailable

path

/@StartDate, /@StartTime_UT, /@StopTime_UT

description

convert yymmdd encoded integer value for StartDate to seconds since 2000; convert hhmmss encoded integer values for StartTime_UT and StopTime_UT to time-of-day values; use: date + (start_time + stop_time) / 2

datetime_length

available

optional

condition

variable ‘Time’ unavailable

path

/@StartTime_UT, /@StopTime_UT

description

convert ‘hhmmss’ encoded integer values for StartTime_UT and StopTime_UT to time-of-day values; use: stop_time - start_time

latitude

path

/@Latitude_degrees_north

longitude

path

/@Longitude_degrees_east

sensor_altitude

path

/@Altitude_meter_asl

viewing_zenith_angle

path

/@ZenithAngle_degrees

wavelength

path

/@DetectionWavelength_nm

altitude

path

/Altitude

dust_aerosol_top_height

available

optional

path

/DustLayerHeight

backscatter_coefficient

available

optional

path

/Backscatter

backscatter_coefficient_uncertainty

available

optional

path

/ErrorBackscatter

extinction_coefficient

available

optional

path

/Extinction

extinction_coefficient_uncertainty

available

optional

path

/ErrorExtinction

H2O_mass_mixing_ratio

available

optional

path

/WaterVaporMixingRatio

H2O_mass_mixing_ratio_uncertainty

available

optional

path

/ErrorWaterVapor