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 |