基于克里金插值法的南充市2022年汛期高温干旱天气分析

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Analysis of HighTemperatureand Drought WeatherinNanchong CityDuring the022FloodSeasonBasedonKriging Interpolation Method

RAO Zhi-jie1²，ZHANG Qi-hui12 ，HU Xiao-qin 1，3 et al（1. Severe Weather in Northeast Sichuan Key Laboratory of Nanchong City，Nanchong，Sichuan637o;2.ogoutyeteorlgicalBureau，og，uan 676;3.XichogCotyeteorlgicalureaichog， Sichuan 637200）

AbstractBasedonteKigingiterpolatiotod，spatialiterpolatioaspfodusingprecipiatiodatafo89eteoloicalsta tionsandemperatuedatafrom222meteorolgicalstatiosinNanchongCitytoanalyeteightemperatureanddoughtweatherdurigte floodseason（MaytoSeptember）inNanchongCityin22Teprecipitationiterolationfitigresultserevalidatedusing63epreta tive meteorologicalstatios.Theresultsshowedthatduringthefloodseasonin222，theoverallclimateofNanchong Cityshowedrendof hightemperatureandlitlein，ih15stiosbakingteistoicalcodfordailymaxiumtemperaturead23statiosbeaking e historicalrecordforaveragetemperature.Thenumberof hightemperaturedayswastehighestinhistorysince1959，withawideoverage longdurationdgintesitofghtmperure，llofchereaeistyyinteplatigteeregeofbolpiiati on，itouldbecocludedthatthrewillevaingdegresofdroughtinNanchongCitduringthefooseasoofO.Thedroughtaa， mild，moderate，and severe drought areas in August were the largest，accounting for 85.08% ， 30.57% ， 40.01% and 12.92% ，respectively. The particularly severe drought area was the largest，accounting for 9.26% ，in July，and the drought situation was the lightest in September. 63representativemeteorologicalstatioswithpreipiatioaoalypercentagandftingvaluesfromJunetoAugust222wereselectedfor comparative analysis. The correlation was good，especially in Julyand August when drought was severe，with R2 values of 0.857 9 and 0.7797，espeieleigiicaestfOOsssd，ncatigtatthigingiteplatimethdandfooht nitoring in Nanchong area.

Key WordsKriging interpolationmethod;Meteorological stations;Flood season;High temperature;Drought

干旱是我国主要的气象灾害之一，严重威胁生态环境、农业生产和人民生活，干旱是气候变化研究领域的前沿问题[1-2]。（剩余5679字）