Aquarius Celestial Sky Microwave Emission Map Ancillary Dataset V1.0

Description

This datasets contains three maps of L-band (wavelength = 21 cm) brightness temperature of the celestial sky ("Galaxy") used in the processing of the NASA Aquarius instrument data. The maps report Sky brightness temperatures in Kelvin gridded on the Earth Centered Inertial (ECI) reference frame epoch J2000. They are sampled over 721 Declinations between -90 degrees and +90 degrees and 1441 Right Ascensions between 0 degrees and 360 degrees, all evenly spaced at 0.25 degrees intervals. The brightness temperatures are assumed temporally invariant and polarization has been neglected. They include microwave continuum and atomic hydrogen line (HI) emissions. The maps differ only in how the strong radio source Cassiopeia A has been included into the whole sky background surveys: 1/ TB_no_Cas_A does not include Cassiopeia A and reports only the whole Sky surveys. 2/ TB_Cas_A_1cell spread Cas A total flux homogeneously over 1 map grid cell (i.e. 9.8572E-6 sr). 3/ TB_Cas_A_beam spreads Cas A over surrounding grid cells using a convolution by a Gaussian beam with HPBW of 35 arcmin (equivalent to the instrument used for the Sky surveys). Cassiopeia A is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extra-solar radio source in the sky at frequencies above 1.

Resources

Name Format Description Link
21 NASA Aquarius/SAC-D mission website https://aquarius.oceansciences.org/
33 Publication on Aquarius Celestial Sky Map Product https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/aquarius/open/docs/v5/EDinnat_etal_Paper_SkyTBMap_Lband.pdf
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/AQUARIUS_ANCILLARY_CELESTIALSKY_V1.jpg
33 Aquarius Celestial Sky Map Product User's Guide https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/aquarius/open/docs/v5/UserGuideAquariusCelestialSkyMicrowaveEmissionMapProduct.pdf
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2617176761-POCLOUD
21 MATLAB read software https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/aquarius/open/sw/idl/aquarius_IDL_readers.tgz
21 Interactive Data Language read software https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/aquarius/open/sw/matlab/aquarius_matlab_readers.tgz
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2617176761-POCLOUD
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FAQR00-SKY01
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC

Tags

  • atmospheric-radiation
  • atmosphere
  • earth-science

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