CAJ | 학술논문

利用线性趋势法对1961—2008年阿勒泰地区7个气象站点气温日较差进行趋势研究,并根据各因子趋势值,应用相关统计法分析了影响气温日较差呈减小趋势的因子。结果表明：阿勒泰地区四季日较差呈显著减小趋势,其中冬季最显著,秋季变化最弱。各季节最低气温上升趋势最明显,而最高气温上升趋势较弱。阿勒泰地区月平均气温日较差相关性最强的因子是日照时数,呈正相关;其次分别为总云量、降水量和水汽压,均呈负相关。年气温日较差与降水量和水汽压相关性最大。
이용선성추세법대1961—2008년아륵태지구7개기상참점기온일교차진행추세연구,병근거각인자추세치,응용상관통계법분석료영향기온일교차정감소추세적인자。결과표명：아륵태지구사계일교차정현저감소추세,기중동계최현저,추계변화최약。각계절최저기온상승추세최명현,이최고기온상승추세교약。아륵태지구월평균기온일교차상관성최강적인자시일조시수,정정상관;기차분별위총운량、강수량화수기압,균정부상관。년기온일교차여강수량화수기압상관성최대。
The variation trend of the diurnal temperature range（DTR） and its impacting factors were analyzed using methods of a liner trend and a statistic correlation analysis based on temperature data at 7 weather stations from 1961 to 2008 in Altay region.The results indicated that the seasonal DTR is in a significant decreasing trend,especially in winter.Variation of autumn DTR is small.The increasing trends of seasonal minimum temperature are the most significant,while those of seasonal maximum temperature are not significant.The monthly mean DTR has significantly positive correlation with sunshine duration,while it has negative correlation with total cloud cover,precipitation and vapor pressure.Annual DTR has significant correlation with precipitation and vapor pressure.