本文探讨了两种从合成孔径雷达（SAR）图像中内部孤立波的雷达信号中推断海洋内部动力特性的方法。一种是识别和解释内部孤立波的海面模式，另一种是分析与内部孤立波相关的归一化雷达回波强度（NRCS）的调制深度。通过1991年至1997年在墨西拿海峡的SAR和现场测量数据，研究了内部波场如何随季节性和远程诱导的垂直和水平密度分布变化。此外，通过数值模拟展示了准确的风况知识对于从内部孤立波NRCS的调制中推导内部海洋动力学参数的重要性。
摘要：
In thispaperwe discusstwo differentmethodsof inferringcharacteristicsof theinterioroceandynamicsfrom radarsignaturesof internalsolitarywavesvisibleon synthetic apertureradar(SAR) images.The firstoneconsistsin therecognitionandtheinterpretationof seasurfacepatternsof internalsolitarywaves;thesecondoneconsistsin theanalysisof themodulationdepthof thenormalizedradarbackscatterincgrosssection(NRCS) associatedwith internalsolitarywaves.For thispurposewe considera datasetcomposedof SAR andin situmeasurementscarriedoutfrom 1991 to 1997 in the regionof the Straitof Messina.Therecognitionandtheinterpretationof seasurfacepatternsof internalsolitarywavesin theStraitof Messinacanbe usedto studycharacteristicosf thedensitydistributionin the area:The internalwave field varieswith seasonavl ariationsin the verticaldensitystratificationand with remotelyinducedvariations,i.e., variationsinducedby thelarger-scalecirculation,in the horizontaldensitydistributionI.n orderto inquireintothepossibilityof inferringparameters of theinterioroceandynamicsby analyzingthemodulationof theNRCS associatedwith in- ternalsolitarywaves,severalnumericalsimulationsarecarriedoutusinga radarimagingmodel.Thesesimulationsareperformedby assumingdifferentwind conditionsandinternal waveparametersI.t is shownthatanaccurateknowledgeof windconditionsis crucialfor de- rivinginternalwaveparametersandhenceparametersof theinterioroceandynamicsfrom the modulationof measuredNRCS associatedwith internalsolitarywaves.
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