...
首页> 外文期刊>Journal of arid environments >Sand sea activity and interactions with climatic parameters in the Taklimakan Sand Sea, China
【24h】

Sand sea activity and interactions with climatic parameters in the Taklimakan Sand Sea, China

机译:塔克拉玛干沙海的沙海活动及其与气候参数的相互作用

获取原文
获取原文并翻译 | 示例
           

摘要

An analysis is undertaken of the temporal and spatial variability of climatic parameters including precipitation, potential evaporation and wind regimes that control the aeolian activity in the Taklimakan Sand Sea. Mobility index is calculated according to the mode that Lancaster (J. Arid Environ. 14 (1988) 233) suggested. Our results show that there are apparent temporal and spatial variations for this mobility index. The annual aeolian activity varies in phase with the number of windy days, precipitation and potential evaporation. Dune development is highly consistent with distribution of the mobility index. The mobility index shows that the Taklimakan Sand Sea experienced high aeolian sand activity during the 1960s and mid-1980s, and then related sand transport was reduced from the mid-1980s to the late 1990s. The mobility index cycle cannot be obtained because the available meteorological data cover only short periods. Such an approach will require longer research combined with field observations of sand movement.
机译:对气候参数的时空变化进行了分析,包括降水,潜在的蒸发和控制塔克拉玛干沙海中风沙活动的风况。流动性指数是根据兰开斯特(J. Arid Environ。14(1988)233)提出的模式计算的。我们的结果表明,该迁移率指数存在明显的时空变化。年度风沙活动随大风天数,降水量和潜在蒸发量的变化而变化。沙丘的发展与流动性指数的分布高度一致。流动性指数显示,塔克拉玛干沙海在1960年代和1980年代中期经历了高风沙活动,然后从1980年代中期到1990年代后期减少了相关的沙运输。由于可用的气象数据仅覆盖很短的时间,因此无法获得流动性指数周期。这种方法将需要更长时间的研究以及对沙运动的现场观察。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号