GOSAT_FTS_L1b_band3p
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of GOSAT_FTS_L1b_band3p
data.
field name 
type 
dimensions 
unit 
description 

datetime 
double 
{time} 
[seconds since 20000101] 
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} 
zerobased 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=3p
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 20000101 00:00:00 

longitude 
path 
/exposureAttribute/pointAttribute/geometricInfo/centerLon[] 
latitude 
path 
/exposureAttribute/pointAttribute/geometricInfo/centerLat[] 
radiance 
path 
/Spectrum/SWIR/band3/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 .. N1 with a,b the wavelength range parameters in the product 