| 引用本文: | 万军山,吕丹苗,刘福基.鄱阳湖水体夏季气温效应.湖泊科学,1993,5(1):26-31. DOI:10.18307/1993.0104 |
| Wan Junshan,LV Danmiao,Liu Fuji.Summer temperature effect of poyang lake water body. J. Lake Sci.1993,5(1):26-31. DOI:10.18307/1993.0104 |
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| 摘要: |
| 本文讨论了定量计算湖泊纯水体气温效应的方法,在计算鄱阳湖水体夏季纯水体气温效应值的基础上,重点分析鄱阳湖水体夏季气温效应的特征、强度和分布,其结果是鄱阳湖水体夏季对湖区气温影响呈热源效应。表现在提高了湖区夏季平均气温,湖中心棠荫站比湖外高0.1-1.0℃,纯水体气温效应为0.4℃。随着距水体距离的增大,气温效应也逐渐减弱,水体影响气温的范围约为10-40km。由于湖区夏季受到副热带高压控制,陆风比湖风旺盛,气温效应夜间比白天强,加上地形的作用,影响范围南部比北部大。1980-1987年间的7、8月考察资料也和上述结果相吻合。 |
| 关键词: 鄱阳湖 气温效应 热源 夏季 |
| DOI：10.18307/1993.0104 |
| 分类号: |
| 基金项目:国家气象局基金(气候项目8658) |
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| Summer temperature effect of poyang lake water body |
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Wan Junshan, LV Danmiao, Liu Fuji
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Institute of meteorology, Jiangxi Province, Nanchang 330046
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| Abstract: |
| This paper has introduced a quantitative method of calculating the temperature effect of Poyang Lake water body. Based on thirty-year normal meteorological data observed by the weather stations in the lake area and short-period contrast exploring data obtained by the stations on both water and land. After analyzing the summer temperature effect of Poyang Lake water body, it is found that the water body may make the maximum temperature over the lake area reduced and the minimum temperature increased t but the more important is that the average temperature goes up about 0.1-1.0℃ during summer time. The maximum temperature appears in the Tangyin station located in the center of the lake with the pure water temperature effect of about 0.1-0.4℃. The effect becomes weaker gradually in all directions with an affected area being about 10-40km. Because the lake area is under the control of subtropical high, the diurnal wind velocity varies obviously, in addition to the effect of topographic features, the area affected by Poyang Lake water body during summer time is larger in south than in north. |
| Key words: Poyang Lake heat source air temperatuure affect |
