satellite geophysics. land and sea ice. c.c.tscherning, university of copenhagen, 2013-12-01 1...
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Satellite geophysics. Land and Sea Ice.
C.C.Tscherning, University of Copenhagen, 2013-12-01 1
Applications:
• Mapping the altitude of ice-covered areas
• Map the distribution of sea-ice, ice warning (DMI).
• Changes and interpretation of changes related to sea-level
Satellite geophysics. Land and Sea Ice.
C.C.Tscherning, University of Copenhagen, 2013-12-01 2
Satellite geophysics. Land and Sea Ice.
C.C.Tscherning, University of Copenhagen, 2013-12-01 3
• Satellitter: • http://database.eohandbook.com/database/missiontable
.aspx
• Instrumenter• http://database.eohandbook.com/database/instrumentta
ble.aspx
• Data sources• http://database.eohandbook.com/measurements/overvi
ew.aspx
Satellite geophysics. Land and Sea Ice. Satelitter I
C.C.Tscherning, University of Copenhagen, 2013-12-01 4
• SEASAT, ERS1/2, ENVISAT, TPX – Radar altimetry and SAR
• RADARSAT (SAR)• CryoSat2 - Interferometric altimetry• ICESAT – Laser altimetry• SPOT-5, ASTER
Satellite geophysics. Land and Sea Ice. Satelitter
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• Nimbus-7, DMSP, NOAA, Landsat,Aqua (NASA): SMMR, SSM/I, AMSR-E.
• NPP: VIIRS (npp.gsfc.nasa.gov)
• SMOS
• GRACE (tyngdeændringer)
Satellite geophysics. SEASAT.
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• Launched 28 JUN 78, stopped 10 OCT 1978• a= 7930 km, i=108 grader, T= 100 m• Radar-altimeter, Syntetisk Aparture Radar.• Demonstrated earth-observation from satellie
worked. (Maybe too well).• Forrunner for ESA, NASA as well as US-DOD
satellittes.• http://ilrs.gsfc.nasa.gov/satellite_missions/list_o
f_satellites/seas_general.html
Satellite geophysics.ERS-1/2, ENVISAT, TPX.
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• ERS1/2, ENVISAT – Radar altimetry and SAR• Covers up to 82 degrees ! 36 days repeat.• http://cct.gfy.ku.dk/publ_cct/cct1422.pdf• http://cct.gfy.ku.dk/publ_others/ccta2002.pdf• US DOD satellittes: GEOSAT, GSFO• Secret USSR satellittes• TOPEX/Poseidon, Jason – Radar Altimetry• Covers up to 65 degrees, 11 days repeat.
Satellite geophysics. CryoSat2.
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• CryoSat2 - Interferometric altimetry• Not sun-synkroneous, a=7095, i=92 grader, 369
days repeat• http://www.esa.int/esaLP/LPcryosat.html• http://www.esa.int/esaLP/SEMNKR1PLFG_LP
cryosat_0.html
Satellite geophysics. ICESAT.
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• i=94 degrees, • http://icesat.gsfc.nasa.gov/• Anvendelser: Aakjær og Levinsen, 2009.
http://cct.gfy.ku.dk/publ_others/ccta1989.pdf
Satellite geophysics. ICESAT.
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Satellite geophysics. SPOT-5.
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• http://en.wikipedia.org/wiki/SPOT_%28satellite%29#SPOT_5
• Levinsen et al., 2013:
• http://cct.gfy.ku.dk/publ_cct/cct2175.pdf
• HRS High Resolution Stereoscope• http://catalog.spotimage.com/PageSearch.aspx
Satellite geophysics. Nimbus, DMSP, AQUA.
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• http://nsidc.org/data/docs/daac/f17_platform.gd.html
• Http://www.nasa.gov/mission_pages/aqua/• http://toms.gsfc.nasa.gov/n7toms/nimbus7tech.
html
Satellite geophysics. NPP.
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• NPP: VIIRS (http://npp.gsfc.nasa.gov)• Build your own NPP:• http://npp.gsfc.nasa.gov/images/D1978_NPP_P
aper_Model_Letter_OPTIMIZED.pdf
Satellite geophysics. Instruments.
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• Radar and Laser altimeters• Interferometrisk altimetri
Satellite geophysics. SAR.
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Satellite geophysics. SAR.
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Satellite geophysics. SAR.
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Satellite geophysics. SPOT-5 HRS.
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Satellite geophysics. SPOT-5 HRS.
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Satellite geophysics. SAR.
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Satellite geophysics. NOAA-N.
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Satellite geophysics. Radiometri.
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AVHRR/3 is a six channel imaging radiometer that detects energy in the visible IR portions of the electromagnetic spectrum.
HIRS/4 provides multispectral data from one visible channel, seven shortwave channels, and twelve longwave channels using a single telescope and a rotating filter wheel containing twenty individual spectral filters. AMSU-A is a cross-track scanning total power radiometer, which is divided into two physically separate modules that interface with the spacecraft independently. The AMSU-A measures scene radiance in the microwave spectrum. MHS is a five-channel microwave instrument intended primarily to measure profiles of atmospheric humidity.
Satellite geophysics. GRACE.
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- Gravity Recovery and Climate Experiment
Satellite geophysics. GRACE – Greenland.
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Time series of ice mass changes for the GrIS based on GRACE monthly mass http://cct.gfy.ku.dk/ccta2024.pdf. Blue is the unfiltered mass change estimates, red is the filtered data, and green is the best fitting quadratic trend.
Satellite geophysics. EUMETSAT.
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• /http://www.eumetsat.int/Home/Main/Satellites/GroundNetwork/ApplicationGroundSegment/SAFs/SAFProjects/SP_2010053117495263
Satellite geophysics. DTU.
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• http://www.dcrs.dtu.dk/