CAJ | 학술논문

基于1961～2013年湖南82个台站夏季逐日最高气温数据，采取线性趋势分析等方法分析了近53 a湖南高温（最高气温≥35℃）气候特征。结果表明，湖南省夏季多年平均高温日数、高温均值及极端最高气温的大值区主要分布在湘东偏南及湘中偏北的部分地区。全省区域平均的多年平均高温站次及高温值总体呈线性增加趋势，7月中旬到8月上旬高温站次出现相对较多，7月8日起高温均值达到36℃以上并一直维持到8月末。高温最大持续日数总体呈现从湘中衡阳、株洲等地市向四周递减的分布趋势，极端持续高温日数阈值与高温最大持续日数空间分布较相似，但极端持续高温事件发生次数较多的台站主要分布在湘北、湘东南及湘西南。
기우1961～2013년호남82개태참하계축일최고기온수거，채취선성추세분석등방법분석료근53 a호남고온（최고기온≥35℃）기후특정。결과표명，호남성하계다년평균고온일수、고온균치급겁단최고기온적대치구주요분포재상동편남급상중편북적부분지구。전성구역평균적다년평균고온참차급고온치총체정선성증가추세，7월중순도8월상순고온참차출현상대교다，7월8일기고온균치체도36℃이상병일직유지도8월말。고온최대지속일수총체정현종상중형양、주주등지시향사주체감적분포추세，겁단지속고온일수역치여고온최대지속일수공간분포교상사，단겁단지속고온사건발생차수교다적태참주요분포재상북、상동남급상서남。
Basted on the daily maximum air temperature data from 82 stations in Hu’nan during 1961 -2013,the climatic characteris-tics of high temperature in Hu’nan were analyzed by using the statistical methods including trend analysis.The results show that the stations where annual average high temperature days,mean high temperature and maximum high temperature were greater than climate mean values distributed in the south region of eastern Hu’nan and the north area of central Hu’nan.Overall annual average high tem-perature stations and mean high temperature presented increasing trend in the whole province,and the high temperature stations ap-peared in the middle of July to the early of August and mean high temperature reached above 36 ℃and kept to the end of August.The distribution of high temperature maximum duration showed decreasing trend from the central Hu’nan to the surrounding areas.The spa-tial distribution of extremely continuous high temperature duration thresholds were similar to the maximum duration of high temperature, while the stations with more extremely continuous high temperature events times mainly distributed in the northern,southeastern and southwestern Hu’nan.