近50年海口市日照时数气候变化特征分析 |
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引用本文: | 吴名杰,陈小敏. 近50年海口市日照时数气候变化特征分析[J]. 热带作物学报, 2014, 34(1): 94-97 |
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作者姓名: | 吴名杰 陈小敏 |
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作者单位: | 1 海南省气象局信息中心 海南海口 570203;2 海南省气象科学研究所 海南海口 570203 |
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摘 要: | 利用海口市1961~2010年日照时数实测资料,分析年代际、年际和季节的气候变化特征,同时与总云量、低云量、相对湿度和降雨量资料,进行相关分析。结果表明:近50年海口市日照时数呈下降趋势,每10年偏少117.2 h,其中2001~2010比1961~1970 下降了20%以上。海口市日照减少与低云量的增加有密切关系,与夏秋季节的降雨量也有关系。
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关 键 词: | 日照时数 ;低云量 ;气候变化 ;海口 |
Climate Change Characteristics of Sunshine Duration in Haikou City in Recent 50 Years |
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Affiliation: | 1 Information Center, Hainan Meteorological Bureau, Haikou, Hainan 570203;2 Hainan Institute of Meteorological Science, Haikou, Hainan 570203 |
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Abstract: | Analyzed on climate change variation of the annual, seasonal sunshine duration in Haikou City during 1961-2010, and it's correlation coefficient with total cloud amount (TCA), low-level cloud amount(LCA), relative humidity(RH) and rainfall(R). The results indicate that sunshine duration decreased at the rate of 117.2h/10a in Haikou City, with the increasing of low-level cloud amount and rainfall of summer/autumn. |
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Keywords: | sunshine duration low-level cloud amount climate change Haikou City |
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