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Tools and analysis for pre-launch spectral calibration of the
Cross-track Infrared Sounder (CrIS), a Fourier transform infrared
spectrometer for the NOAA Suomi NPP and JPSS weather satellites,
using data from the thermal vacuum (TVAC) tests. See the README
in the git repo for an overview of the software. Analysis is in
the reports subdirectory.
tvac_j2 github repo
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Software for Atmospheric Infrared Sounder (AIRS) deconvolution and
the translation of AIRS to CrIS radiances. Methods are described
in the AIRS deconvolution paper, listed in my
CV. We have been using these
tools for some time to evaluate AIRS and CrIS simultaneous nadir
overpasses (SNOs). We also have software for deconvolution and
the translation of the infrared atmospheric sounding
interferometer (IASI) to CrIS radiances, a much easier task than
the AIRS translation.
airs_decon github repo,
iasi_decon github repo
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Based on the work above, we are developing software for a climate
hyper-spectral infrared product (CHIRP), the translation of AIRS,
CrIS, and eventually IASI radiances to a common format as part of
a long term record for global climate monitoring. We are using
this now at UMBC and it should be available as a JPL product by
fall 2020.
chirp github repo
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A package ``obs_stats'' to do long-span all-obs stats from AIRS
and CrIS SDR and other supporting data, including equal area maps
of mean, variance, PDFs, and trends. See the README files in the
top level and obs_source directories for more details.
obs_stats github repo
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The UMBC verson of the CrIS Calibration Algorithm and Sensor
Testbed (CCAST), software to take CrIS level 0 (telemetery) data
to calibrated radiances. We use this for almost all of our CrIS
analysis, and have periodically reprocessed all SNPP and J1 data
from the start of their respective missions. See the README for
a list of significant features relative to the similar NOAA and
NASA/UW products.
ccast github repo
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An early version of a Matlab package for radiative transfer
calculations from compressed tabulated optical depths (a Matlab
version of ``kcarta'', see references in my
CV), along with tools and scripts
for building a database of compressed tabulated optical depths
from HITRAN data.
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The Radiative Transfer Profile (RTP) package, an HDF 4 data
format and application interface for storage and manipulation of
atmospheric profiles and associated spectra. Also assorted Matlab
HDF 4 tools, including a Matlab RTP interface.
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