三维北极海冰温度场的参数辨识与数值模拟的中期报告摘要：本文对三维北极海冰温度场进行了参数辨识与数值模拟，并在中期检查中取得了一定的进展。首先，对北极海冰温度场建立了其数学模型，并在此基础上确定了典型参数的取值范围，即海冰厚度、冰下水温、海水温度、冰块中心温度等。接着，基于有限元方法，数值模拟了北极海冰温度场的变化，并通过与实测数据对比验证了模型和参数的可行性。在模拟过程中，对不同参数的变化对温度场的影响进行了深入分析，指出了影响温度场的主要因素和机理，为后续仿真分析提供了依据。关键词：北极海冰；温度场；参数辨识；有限元方法；数值模拟Abstract：Inthispaper,theparameteridentificationandnumericalsimulationofthethree-dimensionalArcticseaicetemperaturefieldwereconducted,andsomeprogresswasmadeinthemid-termcheck.Firstly,themathematicalmodeloftheArcticseaicetemperaturefieldwasestablished,andtherangeoftypicalparameterswasdetermined,includingthethicknessoftheseaice,thetemperatureoftheunderwater,thetemperatureoftheseawater,andthecentertemperatureoftheiceblock.Then,basedonthefiniteelementmethod,thechangeoftheArcticseaicetemperaturefieldwassimulated,andthefeasibilityofthemodelandparameterswasverifiedbycomparisonwiththemeasureddata.Inthesimulationprocess,theinfluenceofthechangeofdifferentparametersonthetemperaturefieldwasdeeplyanalyzed,andthemainfactorsandmechanismsaffectingthetemperaturefieldwerepointedout,providingabasisforthesubsequentsimulationanalysis.Keywords:Arcticseaice;temperaturefield;parameteridentification;finiteelementmethod;numericalsimulation