Page 21 - 《水资源与水工程学报》2022年第5期
P. 21

! 33 " ! 5 #                      & ' ( ) & * + , -                               Vol.33No.5
               2022 $ 10 %               JournalofWaterResources&WaterEngineering                Oct.,2022

            DOI:10.11705/j.issn.1672-643X.2022.05.03


                  1961-2020 µÁÂÃVÄœ=q¼«°±


                                      1         2          1         1         1         3
                               234 , #56 , 789 , #:; , %8< , #5=
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                                   0± n= 250000;3. 0±½CI%&>?Y, 0± n= 250014)
                 C D: 'Ž 1961-2020 õ 20 Õ!"¾ú#T)·CQR, )Pñ¥ 9 ÕRÓ·C<Q, I£ 5a BdA’¡、
                 Mann-Kendall ¡…ÔµGA¡、Morlet ±fe¡、 ÕÖ=¸;¡Dî×(%³Øï(@¡, ST—>?-RÓ·
                 C Ú%eÓ{e。ÉßÎà: >?- 1d °P·C6、5d °P·C6…·CS½MtŠLÁ, Pû)Q、 õ·C
                 6、 S·C6、 RS·C6、 T.òe)QDT.ÙÚ)QM‚g›„·LÁ; õ·C6WPû)Q +e‚ƒM
                 0,1980 õ¾„·LÁàg, ·CS½ 1998 õû;+e, +en¾eBiSLÁ; HRÓ·C<Q'v€ 20a
                 Ÿ  Û‹ªÝ¬; %³SÕt, 9T.òe)QW·CS½þ, Èå 7 Õ<Q%³SÕã0, 'vMz†±=A
                 1i‘q SÕb!, T.òe)Q„LMz†±¯1ž‘ LÁ, ·CS½„LMz=ëi¸ LÁ;1980-
                2000 õB·CK_õŽ=ûÚÔ,1964、2003 … 2020 õB·C6ÜÄK_hëõŽ。>?ÉßáBÝÞ0-CD
                 Eÿ4、 ­z‘z(•ðG¤…QRòß。
                 EFG: RÓ·C; RÓ·C<Q; Ú%eÓ{e; ÝÞ0-
                 HIJKL:P426.6   MNOPQ:A    MRSL:1672643X(2022)050017010
                    Spatiotemporalvariationcharacteristicsofextremeprecipitationin

                                    YimengMountainAreafrom1961-2020

                                1
                                             2
                                                             1
                                                                                          1
                                                                         1
                    SHIYanfeng,LIFumeng,WANGZhifeng,LIBingxu,ZHANGZhibin,LIFulin                    3
                     (1.SchoolofMunicipalandEnvironmentalEngineering,ShandongJianzhuUniversity,Jinan250101,China;
                            2.JinanUrbanConstructionGroupCo.,Ltd.,Jinan250000,China;3.WaterResources
                                     ResearchInstituteofShandongProvince ,Jinan250014,China)
                 Abstract:Basedonthedailyprecipitationdatafrom20nationalmeteorologicalstationsinYimengMoun
                 tainArea (from1961to2020),nineextremeprecipitationindiceswereselectedtoanalyzethespatiotem
                 poralvariationsofextremeprecipitationwiththemethodsof5yearslidingaverage,Mann-Kendalltest,
                 cumulativeanomaly,Morletwavelettransform,TysonpolygonandKriginginterpolation.Theresults
                 showedthattheRx1day,Rx5dayandSD Ⅱ showedaincreasingtrend,whereastheRr25,PRCRTOT,
                 R95P,R99P,CDDandCWDshowedanonsignificantdownwardtrend.TheabruptchangesofPRCR
                 TOTandRr25weresimilar,andtheirdownwardtrendwasobviousafter1980.TheSD Ⅱ hadundergone
                 asignificantabruptchangein1998 ,whichpresentedanupwardtrendaftertheabruptchange.Allthe
                 extremeprecipitationindicesbasicallyhadthefirstmaincycleof20a.Inspatialdistributions ,exceptfor
                 theCDDandSD Ⅱ,thespatialdistributionoftheother7indiceswassimilar,whichshowedadecreasing
                 patternfromsoutheasttonorthwest.TheCDDdecreasedfromeasttowest ,andtheSD Ⅱ showedatrend
                 ofhigherinsouthandlowerinnorth.Theanomalousyearsoftenoccurredduring1980to2000,andthe
                 precipitationwastypicallyabnormallyhighin1964 ,2003and2020.Theresearchresultscanprovidea
                 theoreticalandstatisticalsupportforwaterresourcesplanning,disasterpreventionandreductioninYi
                 mengMountainArea.

                !"#$:20210124; %&#$:20220623
                '()*: !"#$%&'()*(42007176); 0±½#$%&'()*(ZR2020QD25)
                +,-.: ÚÈÉ(1990-), /, 0±)Ê4, 56, Ë=, :6;<=, >?@ABÌÍ - V„C]^Wb,、 C©WCDE。
                /0+,: HÎk(1967-), /, 0±Ïý4, 56, >?, :6;<=, >?@ABCDEWCNO。
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