| 1970-2020年年昌吉地区日照时数时空变化特征分析 |
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| 引用本文： | 叶尔克江.霍依哈孜,阿帕尔.肉孜,王森,黄健.1970-2020年年昌吉地区日照时数时空变化特征分析[J].新疆气象,2021,15(5):78-85. |
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| 作者姓名： | 叶尔克江.霍依哈孜 阿帕尔.肉孜 王森 黄健 |
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| 作者单位： | 新疆昌吉州气象局,新疆昌吉州气象局,新疆农业气象台,中国气象局乌鲁木齐沙漠气象研究所 |
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| 基金项目： | 国家自然基金（41875023）;中央级公益性科研所基本科研 业务费（IDM2021001）;中国气象局创新发展专项（CXF22021J044）; 国家基金项目（41775109）;昌吉州科技项目（2020S03） |
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| 摘 要： | 基于昌吉地区10个气象站点1970-2020年的气象观测数据,运用气候倾向法、5年滑动平均趋势分析法、M-K检验法、Pearson相关分析法以及ArcGIS10.7环境下的反距离加权(IDW)插值法探究昌吉地区日照时数时空变化规律及影响因素。结果表明:昌吉地区日照时数多年平均值为2840.3h,空间分布特征为“东部多,中西部少;山区多,平原少”,并呈现显著减少趋势,其速率为-62.8h/10a;从季度上看,日照时数夏季最高,其次是春季和秋季,冬季最低;下降速率冬季最快,其次是秋季和夏季,春季变化幅度最小;日照时数年内变化呈现双峰型,最大值出现在5月、7月和8月,最小值出现在12月,1-12月日照时数均呈现减少趋势,1月减少最为明显,12月次之。昌吉地区年日照时数在1987年发生突变;在影响因子方面,日照时数与总云量、水气压、雾日数呈现显著负相关,与大风日数、扬沙日数呈现显著正相关,说明,总云量、水气压、雾日数的逐年增加和大风日数逐年减少是日照时数逐年减少的主要原因。
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| 关 键 词： | 日照时数 突变 反距离权重插值 Pearson相关 |
| 收稿时间： | 2021/4/19 0:00:00 |
| 修稿时间： | 2021/7/7 0:00:00 |
Temporal and spatial variation characteristics and influencing factors of sunshine duration in Changji area |
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| Erkejan Hoyhazi,Apar Ruzi,Wang Sen and Huang Jian.Temporal and spatial variation characteristics and influencing factors of sunshine duration in Changji area[J].Bimonthly of Xinjiang Meteorology,2021,15(5):78-85. |
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| Authors: | Erkejan Hoyhazi Apar Ruzi Wang Sen and Huang Jian |
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| Abstract: | Based on the meteorological observation data of 10 meteorological stations in Changji area from 1970 to 2020, the temporal and spatial variation law and influencing factors of sunshine hours in Changji area were studied by using climate tendency method, 5 year moving average trend analysis method, M-K test method, Pearson correlation analysis method and inverse distance weighted (IDW) interpolation method under ArcGis10.7 environment. The results show that: the annual average sunshine hours in Changji area is 2840.3 hours, the spatial distribution characteristics are "more in the East, less in the middle and West; more in the mountains, less in the Plains", and show a significant decreasing trend, with the rate of -62.8 h / 10a; from the quarterly point of view, the sunshine hours are the highest in summer, followed by spring and autumn, and the lowest in winter; the decreasing rate is the fastest in winter, followed by autumn and summer, and the lowest in spring, the maximum value appeared in May, July and August, and the minimum value appeared in December. The sunshine hours from January to December showed a decreasing trend, and the decrease was most obvious in January, followed by December. The annual sunshine hours in Changji area changed abruptly in 1987. In terms of influencing factors, sunshine hours were negatively correlated with total cloud cover, water pressure and fog days, and positively correlated with gale days and sand days, which indicated that the main reasons for the decrease of sunshine hours were the increase of total cloud cover, water pressure and fog days and the decrease of gale days. |
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| Keywords: | Sunshine duration mutation inverse distance weighted Pearson correlation |
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