| 1963-2012年广宁县日照时数的变化特征 |
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| 引用本文： | 陈明丽,丁志平.1963-2012年广宁县日照时数的变化特征[J].广东气象,2014,36(6):28-31. |
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| 作者姓名： | 陈明丽 丁志平 |
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| 作者单位： | 1. 肇庆市气象局,广东肇庆,526040
2. 广宁县气象局,广东广宁,526300 |
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| 摘 要： | 利用1963-2012年广宁县逐年、逐月日照,日照百分率,水汽压,相对湿度,总低云量,降水量,轻雾、雾、烟、霾,风速,日照百分率≥60％、日照百分率≤20％等经过严格的筛选、审核,质量可靠的观测资料,综合分析了广宁县日照时数的年、季节、月份变化趋势,同时重点分析了日照时数与总低云量、霾日数的关系.结果表明：广宁县50年的年、季、月日照时数总体都呈减少趋势,导致日照时数减少的最重要原因是低云量和霾日数的显著增加.
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| 关 键 词： | 气候学 日照时数 总低云量 霾日数 广宁县 |
Analysis of the Characteristics of the Variation of Sunshine Duration in Guangning County from 1963 to 2012 |
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| CHEN Ming-li,DING Zhi-ping.Analysis of the Characteristics of the Variation of Sunshine Duration in Guangning County from 1963 to 2012[J].Journal of Guangdong Meteorology,2014,36(6):28-31. |
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| Authors: | CHEN Ming-li DING Zhi-ping |
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| Institution: | CHEN Ming-li, DING Zhi-ping ( 1. Meteorological Bureau of Zhaoqing City, 526040 ; 2. Meteorological Bureau of Guangning County, 526300) |
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| Abstract: | Based on the yearly and monthly sunshine duration, sunshine percentage, water vapor, relative humidity, total amount of low-level clouds, rainfall, mist, fog, haze, and wind speed from 1963 to 2012, and with two thresholds of ≥60% and ≤20% in screening and verification for quality control, the trends of yearly, seasonal and monthly variation of the sunshine duration （ in hour） in Guangning county are studied comprehensively, with the focus on the relationships between the sunshine duration and total number of low cloud days and hazy days. The result shows that the yearly, seasonal and monthly variation of the sunshine duration has all been showing trends of decreasing, Which is mostly caused by the much increased number of low cloud days and hazy days. |
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| Keywords: | climatology sunshine duration total amount of low-level cloud number of hazy days Guangning |
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