MODIS Land-Surface Temperature Algorithm Theoretical Basis Document.pdf

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1、MODISLand-SurfaceTemperatureAlgorithmTheoreticalBasisDocument(LSTATBD)Version3.3ContractNumber:NAS5-31370ZHENGMINGWANInstituteforComputationalEarthSystemScienceUniversityofCalifornia,SantaBarbaraP.I.'sAddress:InstituteforComputationalEarthSystemScienceUniv

2、ersityofCaliforniaSantaBarbara,CA93106-3060Phone:(805)893-4541FAX:(805)893-2578Email:wan@icess.ucsb.eduApril1999TABLEOFCONTENTS1.Introduction12.OverviewandBackgroundInformation22.1Experimentalobjective22.2Historicalperspective22.3Instrumentcharacteristics5

3、3.AlgorithmDescription63.1Theoreticaldescription63.1.1Physicsofproblem83.1.1.1Generalizedsplit-windowLSTalgorithm133.1.1.2Day/nightLSTalgorithm183.1.2Mathematicaldescriptionofalgorithm193.1.2.1UnknownvariablesinLSTproblem193.1.2.2Generalizedsplit-windowLST

4、algorithm203.1.2.3Day/nightLSTalgorithm243.1.3Concernsrelevanttotheday/nightLSTalgorithm323.1.3.1Assumptionsofsurfaceopticalproperties323.1.3.2Nightdewproblem333.1.3.3ComparisonwiththeHCMMthermalinitiaalgorithm393.1.3.4Cloudcover393.1.4Prelaunchalgorithmde

5、velopmentandvalidation403.1.5Varianceanduncertaintyestimate453.1.5.1ErrorestimatesrelevanttotheMODISinstrument453.1.5.2UncertaintieswithintheLSTalgorithm463.1.5.3Uncertaintiesintheemissivityknowledgebase483.1.5.4Rootsumsquareofuncertainties483.2PracticalCo

6、nsiderations483.2.1Numericalcomputationconsiderations483.2.2Programming/proceduralconsiderations523.2.3Postlaunchvalidation543.2.4Qualitycontrolanddiagnostics563.2.5Exceptionhandling563.2.6Datadependencies563.2.7Outputproduct574.Constraints,Limitations,Ass

7、umptions575.References59Acronyms67AppendixA:Responsetothereviewcommentstotheversion1ATBD69AppendixB:Responsetothereviewcommentstotheversion2ATBD72AppendixC:Responsetothecommentstotheversion3.1ATBD(August1996)74MODISLSTATBD,Version3.31MODISLand-SurfaceTempe

8、ratureAlgorithmTheoreticalBasisDocument(LSTATBD)1.IntroductionThisisversion3.3oftheATBDforMODIS(ModerateResolutionImagingSpectroradiometer)Land-SurfaceTemperature(LST),level-2andlevel-3at-launchdataproductsth