GOSAT_FTS_L1b_band3s
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of GOSAT_FTS_L1b_band3s data.
| field name | type | dimensions | unit | description |
|---|---|---|---|---|
| index | int32 | {time} | zero-based index of the sample within the source product | |
| 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 |
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/band3/obsWavelength[,1,,] |
| 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 | |