| 亚欧大陆北部与青藏高原雪盖特征及其与我国气温和降水的统计分析 |
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| 引用本文： | 刘晓东,罗四维.亚欧大陆北部与青藏高原雪盖特征及其与我国气温和降水的统计分析[J].高原气象,1990(3). |
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| 作者姓名： | 刘晓东 罗四维 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所
(刘晓东)，中国科学院兰州高原大气物理研究所(罗四维) |
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| 摘 要： | 本文利用1966～1983年雪盖资料分析了亚欧大陆北部及青藏高原地区的雪盖特征及其与我国温度及降雨的关系。分析指出亚欧大陆雪盖的年变化大,但变化趋势平稳;而高原地区的年变化小,但变化多波动。夏季高原雪盖面积占高原总面积的百分比远比业欧大陆的要大(指40°N以上大陆)。冬半年亚欧大陆雪盖变化与我国各地3周内温度变化呈负相关。夏季亚欧大陆北部雪盖大时,我国长江以北(华北除外)降雨偏少,华南偏多;反之亦然。
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| 关 键 词： | 亚欧大陆北部 青藏高原 雪盖特征 相关 |
CHARACTERISTICS OF SNOW COVER OVER NORTH EURASIAN CONTINENT AND TIBETAN PLATEAU AND THEIR RELATIONSHIPS WITH TEMPERATURE AND RAINFALL OF CHINA |
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| Liu Xiaodong Luo Siwei.CHARACTERISTICS OF SNOW COVER OVER NORTH EURASIAN CONTINENT AND TIBETAN PLATEAU AND THEIR RELATIONSHIPS WITH TEMPERATURE AND RAINFALL OF CHINA[J].Plateau Meteorology,1990(3). |
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| Authors: | Liu Xiaodong Luo Siwei |
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| Abstract: | In this paper utilizing the snow cover data for the years 1966~ 1983 the characteristics of snow cover over north Eurasian continent and Tibet Plateau and their relationships with temperature and rainfall in China have been investigated. The results show that the snow cover over north Eurasian continent has a large annual variation and changes smoothly; but over Tibet Plateau, a small one and changes unsmoothly. The persentages of areas coverred by snow over Tibet Plateau in summer are much larger than those over north Eurasian continent. In winter half year there are negative correlation relationships between the snow cover over north Eurasian continent and the air temperature in China in three weeks . In summer, when the snow cover over north Eurasian continent is large, the rainfall over south China and north China Plain is more than normal, over the rest of China less than normal; or vice versa. |
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| Keywords: | North Eurasia continent Tibet Plateau Snow cover Correlation |
| 本文献已被 CNKI 等数据库收录！ |
