GOSAT_FTS_L1b_band1p

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of GOSAT_FTS_L1b_band1p data.

field name	type	dimensions	unit	description
datetime	double	{time}	[seconds since 2000-01-01]	start time of the measurement
longitude	double	{time}	[degree_east]	longitude of the measurement
latitude	double	{time}	[degree_north]	latitude of the measurement
radiance	double	{time, spectral}	[V/cm^-1]	radiances derived by taking the norm of the fourier transform of measured wavelengths
wavenumber	double	{time, spectral}	[cm^-1]	wavenumber for each point in the spectrum
index	int32	{time}		zero-based index of the sample within the source product

Ingestion options

The table below lists the available ingestion options for GOSAT_FTS_L1b products.

option name	legal values	description
band	1p, 1s, 2p, 2s, 3p, 3s, 4	spectral band to ingest (default is 1p)

This definition is only applicable when: band=1p or band unset

Mapping description

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

field name	mapping description
datetime	path	/exposureAttribute/pointAttribute/Time[]
	description	the record with year/month/day/hour/min/sec values is converted to a double precision floating point value that represents the amount of seconds since 2000-01-01 00:00:00
longitude	path	/exposureAttribute/pointAttribute/geometricInfo/centerLon[]
latitude	path	/exposureAttribute/pointAttribute/geometricInfo/centerLat[]
radiance	path	/Spectrum/SWIR/band1/obsWavelength[,0,,]
	description	the radiance returned is the complex norm of the complex value that is stored in the product; in other words, what is returned is sqrt(real * real + imag * imag)
wavenumber	path	/exposureAttribute/pointAttribute/RadiometricCorrectionInfo/spectrumObsWavelengthRange_SWIR
	description	the wavenumbers are calculated by evaluating the function a.x + b for x = 0 .. N-1 with a,b the wavelength range parameters in the product