| 塔克拉玛干沙漠腹地沙丘表面温度特征初探 |
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| 引用本文： | 张杰. 塔克拉玛干沙漠腹地沙丘表面温度特征初探[J]. 中国沙漠, 2003, 23(5): 592-595 |
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| 作者姓名： | 张杰 |
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| 作者单位： | 中国气象局 乌鲁木齐沙漠气象研究所, 新疆 乌鲁木齐 830002 |
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| 基金项目： | 科技部重大基础研究前期专项(2002CCA04600),科技部社会公益类研究专项"沙尘暴观测及分级标准研究"共同资助 |
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| 摘 要： | 塔克拉玛干沙漠腹地沙丘表面温度因不同部位、不同时段差异很大。作者通过冬、夏典型时段的观测数据,对沙丘各个部位表层的温度分布特征做了初步的探讨和分析,主要结论有:①沙丘表面的日最高温度出现在落沙坡,落沙坡与沙丘其他部位的温度差以冬季沙丘右翼为最大。②沙丘表面日较差最大的部位是落沙坡,夏季大于冬季;日较差最小的部位冬季发生在右翼,而夏季则发生在顶部。③沙丘各部位浅层地温,也以落沙坡为最高。④沙丘不同部位表层导温率也有很大的差别。
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| 关 键 词： | 塔克拉玛干沙漠 沙丘 温度 |
| 文章编号： | 1000-694X(2003)05-0592-04 |
| 收稿时间： | 2002-09-15 |
| 修稿时间： | 2002-09-15 |
Temperature Features of Sand Dune Surface Layer in Hinterland of Taklimakan Desert |
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| ZHANG Jie. Temperature Features of Sand Dune Surface Layer in Hinterland of Taklimakan Desert[J]. ournal of Desert Research, 2003, 23(5): 592-595 |
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| Authors: | ZHANG Jie |
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| Affiliation: | Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China |
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| Abstract: | The surface temperature is much different at different positions of sand dune or even same position but at different time. The surface temperature distribution on each position of sand dune in Tazhong area of Taklimakan Desert is discussed based on the observed temperature data in winter and summer: (1) The maximum surface temperature of a day appears on the leeward slop; the greatest temperature difference between leeward slop and the other positions of dune is at the right wing and in the time of winter. (2) The leeward has the greatest diurnal temperature range, and the range is larger in summer; the position that shows the smallest diurnal temperature range is at the right wing in winter and the top in summer. (3) The maximum ground temperature appears on the leeward slop too. (4) The temperature conductivities of dune positions are much different. |
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| Keywords: | Taklimakan Desert sand dune temperature |
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