GOME_L1_EXTRACTED_sun_reference

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of GOME_L1_EXTRACTED_sun_reference data.

field name	type	dimensions	unit	description
datetime	double	{time}	[seconds since 2000-01-01]	time of the sun reference measurement at the end of the integration time
orbit_index	int32			absolute orbit number
wavelength_photon_irradiance	double	{time, spectral}	[count/s/cm2/nm]	sun spectrum spectral irradiance
wavelength_photon_irradiance_uncertainty	double	{time, spectral}	[count/s/cm2/nm]	relative radiometric precision of the sun reference spectrum
wavelength	double	{time, spectral}	[nm]	nominal wavelength assignment for each of the detector pixels
index	int32	{time}		zero-based index of the sample within the source product

The table below lists the available ingestion options for GOME_L1_EXTRACTED products.

option name	legal values	description
band	band-1a, band-1b, band-2a, band-2b, band-3, band-4, blind-1a, straylight-1a, straylight-1b, straylight-2a	only include data from the specified band (‘band-1a’, ‘band-1b’, ‘band-2a’, ‘band-2b’, ‘band-3’, ‘band-4’, ‘blind-1a’, ‘straylight-1a’, ‘straylight-1b’, ‘straylight-2a’); by default data from all bands is retrieved
data	sun_reference	retrieve the measured radiances (default) or the sun spectra (data=sun_reference)

This definition is only applicable when: data=sun_reference

GOME Level 1 Extracted Spectra Sun Reference

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

field name	mapping description
datetime	path	/sfs/utc_solar_spectrum
orbit_index	path	/pir/start_orbit
wavelength_photon_irradiance	path	/cdr[]/sdr[]/abs_irr
wavelength_photon_irradiance_uncertainty	path	/cdr[]/sdr[]/abs_irr_err
wavelength	path	/cdr[]/sdr[]/wavelength