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塔克拉玛干沙漠北缘两种下垫面气象要素廓线特征分析/Meteorological Element Profile Characteristics of Different Weather Types Above Two Kinds of Underlying Surface in the North of Taklimakan Desert[J]
Authors
GU Junming
HE Qing
+7 more
HUO Wen
中国气象局乌鲁木齐沙漠气象研究所,新疆 乌鲁木齐830002
何清
塔克拉玛干沙漠大气环境观测试验站,新疆 塔中841000
新疆师范大学地理科学与旅游学院,新疆 乌鲁木齐830054
霍文
顾军明
Publication date
1 January 2014
Publisher
Abstract
利用沙漠北缘肖塘气象站的气象观测资料遴选不同天气型,截取哈德、肖塘10 m自动气象观测系统2011年7月的梯度资料,对沙漠-绿洲交错带内相距50 km的肖塘、哈德两种不同下垫面近地层风速、温度和相对湿度的日变化规律及其廓线进行对比分析,结论如下:(1)近地层0.5~10 m高度范围内风速随高度的增大而增大,晴天和雨天1、2 m处风速变化较大,发生沙尘暴时2m为风速切变点,其中肖塘地区比哈德地区风速日变化明显;(2)肖塘地区温度变化也比哈德地区明显,升温快,降温也快,尤其是晴天,发生沙尘暴时2m温度变化明显;(3)湿度变化与温度变化紧密相关,还与近地面风速的大小有关,晴天时2m处湿度变化较明显,沙尘暴和降水过程时1m是相对湿度变化的转折点,晴天和沙尘暴时哈德地区湿度变化大于肖塘地区,与降水过程情况相反
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Last time updated on 29/11/2016