of earth observations satellites地球观测卫星概述（ppt67）课件

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1、OverviewofEarthObservationsSatellitesbyDavidE.PittsUniversityofHoustonClearLakecopiesofthispresentationareavailablefrom:http://sce.uhcl.edu/Pitts/January19,2015copyright2015UpdatesontheStatusofEarthObservationsSatellitescanbefoundon:http://www.spaceflightnow.com/tracking/index.htmlHistoryofsatellite

2、launches&upcominglaunchesisat:http://www.itc.nl/research/products/sensordb/Launch_Schedule.aspxLANDSAT(asof1991,LandsatisajointprogramofNASA,NOAA,andUSGS)Landsat4July1982-1993Landsat5March1984-FailedJan6,2013Landsat6Sept.1993(Failed)Landsat7(ETM+,noMSS)availableuntil201816dayrepeatcycleSun-synchrono

3、usorbit(705kmaltitude,inclination98.2deg,period99minutes)MSSSwath185km4bands(green,red,2nearIR)80mresolution0≤DN(DigitalNumber)≤128LANDSAT8Launch-February11,2013CombinedwithLandsat7gives8daycoverage.OLI-7,000pixel,9bandpushbroom,30mresolutionSiliconPindetectors,bands1-4,&8MerCdTedetectors,bands6,7,&

4、913,000pixel,panpushbroom,15mresolutionITRS-ThermalIR,10.6-11.2&11.5-12.5m,100mres.NET=0.4degK.GalliumArsenidedetectorshttp://tinyurl.com/awzxj6mhttp://ldcm.nasa.gov/LANDSAT8-continuedOLIsensorbands(PushbroomScanner)LANDSATMSS&Landsat7ETM+DataAvailability:EROSDataCenterMundtFederalBuildingSiouxFal

5、lsSD57198telephone-605-594-6511DigitalDataMSSfullscene$200-$375(1972-1992)Landsat4-5,$425-$625(1982-present)Landsat7ETM$475-$800(1999-present)Globalvisualizationviewerhttp://glovis.usgs.gov/http://eros.usgs.gov/remote-sensinghttp://eros.usgs.gov/satellite-imageryhttp://earthexplorer.usgs.gov/Usethis

6、tooltofindimagesLANDSATcontinuedThematicMapper185x170km7bands(blue,green,red,nearIR,2midIR,thermal)30mresolution0≤DN(DigitalNumber)≤255Noon-boardtaperecorders-insteaduses:TDRSSGroundStationsLandsat7ETM+willhavepreviouscapabilitiesplus15mresolution-panchromaticThermalIR-60mresolutionTerraLaunchDec.18

7、,1999PartoftheEarthObservingSystem(EOS)CERES(CloudsandtheEarthRadiantEnergySystem)Abroadbandscanningradiometerthatmeasuresemittedandreflectedenergy.MODIS-N(ModerateResolutionImagingSpectrometer-Nadir)