内蒙古自治区降水量空间插值方法研究

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中图分类号：P426.6 文献标志码：A 文章编号：2095-2945（2025）13-0157-05

Abstract：Taking Inner MongoliaAutonomousRegionasthestudyarea，fiveinterpolationmethods，namelythe Inverse DistanceWeighted（IDW），Spline，OrdinaryKriging（OK），LocalPolynomialInterpolation（LPI），andRadialBasisFunction（BF） methods，wereemployedtospatiallyinterpolaterainfalldatafrom89meteorologicalstationswithinthestudyareaandits suroundings.Subsequentlyacrosvalidationaproachwasadoptedtocomparethepredictionauracyofthefiveinterpolation methods，therebyselectingthemostsuitableinterpolationmethodforInerMongoliaAutonomousRegion.Theresearchrevealed thattheLocalPolynomialInterpolationexhbitedthehghestinterpolationaccuracyptiallyeflectingthespatiallcontiuous variationcharacteristicsofrainfallwithintheregion.Conversely，theOrdinaryKrigingmethoddemonstratedthelowest interpolationauracy，withsimulationresultstendingtoproducethe"Bul's-Eye"efet.Theresearchfindingscanprovide relevantguidanceforselectingrainfallinterpolationmodelsthatcapturethespatio-temporaldistributionofrainfallinIner Mongolia and offer insights for related studies.

KeyWords： Inner Mongolia Autonomous Region;rainfall; spatial interpolation;spatial analysis;GIS

在全球气候变暖的背景下，水资源的时空分布及生态系统受到严重影响，极端气候如高温、洪涝和暴雨等濒发[1。（剩余5501字）