国土与自然资源研究
國土與自然資源研究
국토여자연자원연구
Territory & Natural Resources Study
2015年
5期
45-48
,共4页
极端气温%时空变化特征%突变及周期%湖北省
極耑氣溫%時空變化特徵%突變及週期%湖北省
겁단기온%시공변화특정%돌변급주기%호북성
extreme temperature%temporal and spatial variation%mutation andwavelet analysis%Hubei Province
依据湖北省1961-2012年近52年来年极端最高和最低气温数据,运用 Arcgis 空间分析、线性倾向、Mann-Kendall、小波分析法对极端气温时空特征进行定量化分析。结果表明:时间上,年极端最高气温呈现弱增温趋势,年极端最低气温增温趋势远大于年极端最高气温,增温倾向率为0.556°C/10a;年极端最高气温在1994年发生突变,年极端最低气温在1986年出现突变且存在11a和6a周期;空间上,大部分地区极端最高高气温呈弱下降趋势,极端最低气温则整体呈显著上升趋势,空间差异明显。全球变暖和地形因素是造成极端气温差异的可能因素,局部地区的极端气温变化和城市化水平有很大关系。
依據湖北省1961-2012年近52年來年極耑最高和最低氣溫數據,運用 Arcgis 空間分析、線性傾嚮、Mann-Kendall、小波分析法對極耑氣溫時空特徵進行定量化分析。結果錶明:時間上,年極耑最高氣溫呈現弱增溫趨勢,年極耑最低氣溫增溫趨勢遠大于年極耑最高氣溫,增溫傾嚮率為0.556°C/10a;年極耑最高氣溫在1994年髮生突變,年極耑最低氣溫在1986年齣現突變且存在11a和6a週期;空間上,大部分地區極耑最高高氣溫呈弱下降趨勢,極耑最低氣溫則整體呈顯著上升趨勢,空間差異明顯。全毬變暖和地形因素是造成極耑氣溫差異的可能因素,跼部地區的極耑氣溫變化和城市化水平有很大關繫。
의거호북성1961-2012년근52년래년겁단최고화최저기온수거,운용 Arcgis 공간분석、선성경향、Mann-Kendall、소파분석법대겁단기온시공특정진행정양화분석。결과표명:시간상,년겁단최고기온정현약증온추세,년겁단최저기온증온추세원대우년겁단최고기온,증온경향솔위0.556°C/10a;년겁단최고기온재1994년발생돌변,년겁단최저기온재1986년출현돌변차존재11a화6a주기;공간상,대부분지구겁단최고고기온정약하강추세,겁단최저기온칙정체정현저상승추세,공간차이명현。전구변난화지형인소시조성겁단기온차이적가능인소,국부지구적겁단기온변화화성시화수평유흔대관계。
In this paper, the methods of spatial analysis of Arcgis, regression analysis, Mann-Kendall test and wavelet were used to analyze the variation of extreme temperature of Hubei Province based on the annual extreme maximum and minimum temperature-from 1961 to 2012. Results indicated thatthe annual extreme maxi-mum temperatureis increasing slightly from 1961 to 2012, but the extreme minimum temperature is in a high increase with a rate of 0.556° C/10a. The annual extreme high temperature has a warm abrupt change in 1986, whereas the annual extreme minimum temperature has a warm abrupt change in 1986 and has 11a and 6a main periodic changes. Spatial distribution of annual extreme maximum temperature shows that it is in a slight decrease in most of area, but annual extreme minimum temperature shows that it is in a large increase in most of area, the spatial distribution differ-ences were obvious. Global warming and different terrain might be responsible for extreme temperature change, whereas local area temperature might results from level of urbanization.