Distribution of Microwave Radiation Brightness Temperatures on the Lunar Surface Based on Chang'E-2 MRM Data
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Graphical Abstract
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Abstract
TheChineseChang’Elunarroverwasequippedwithapassivemicrowaveradiometer(MRM)tomeasureforthefirsttimethebrightnesstemperaturefromthelunarsurface.Thebright nesstemperatureisthebaseofinversionoflunarregoliththicknessandlunarregolithparameters.BasedonMRM2C leveldatafromChang’E 2,themodelsofdiurnalvariationofthebrightnesstem peratureinthefourchannelsareestablishedseparatelyatdifferentlatitudes.Basedonthesemodels,microwavemapsofthemoonwereconstructedusinghouranglecalibration.Theresultswerecom binedwithacomparisonofCCDimagesandDEMdatashowingthatbrightnesstemperaturedatacom mendablyreflectsthelunarterraincharacteristicsandlunarsurfacereflectivity.Abnormalareasoflu narbrightnesstemperaturebasedonbrightnesstemperaturedatawereanalyzedathighfrequency,whichshowsthatallarefreshimpactcratersfromtheCopernicanperiod.
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