沙漠与绿洲气象Issue(3)：44-49,6.DOI:10.3969/j.issn.1002-0799.2015.03.007
乌鲁木齐大气边界层风温垂直结构特征
Atmospheric Boundary Layer Structure and Its Characteristics in Different Seasons in Urumqi
摘要
Abstract
Based on the L-band radar system data during 2011-2012, we built the atmospheric boundary layer structure database in Urumqi. Atmospheric boundary layer conditions such as vertical distribution and time variation characteristics of temperature, wind velocity, wind direction and humidity were analyzed. The results show that there were significant changes in daily and seasonal variations in profiles of temperature in atmospheric boundary layer below 1 500 m, and they were basically stabile above 1 500 m. There was temperature inversion in each month which occurs more in the morning (8:00)than in the evening (20:00),and generally thicker and the strongest temperature inversion occured in winter. The wind velocity had more change with altitude increase in summer and winter, and less in spring and autumn. The wind velocity near 1 000 m altitude was significantly greater than that of the other 3 seasons. The prevailing wind direction in surface layer was SSW in spring, summer, and autumn, and E, SW in winter in the morning, as well as NE in spring, N in summer, E in winter in the evening. The wind direction had a significant characteristics of mountain valley breeze. There was the highest humidity in winter, and the lowest in summer, as well as a higher variation with altitude change in spring and summer.关键词
乌鲁木齐/大气边界层结构/L波段雷达/四季特征Key words
Urumqi/atmospheric boundary layer structure/L-band radar system/seasonal characteristics分类
天文与地球科学引用本文复制引用
胡义成,伊里哈木,王秋香,魏文寿,古丽格娜..乌鲁木齐大气边界层风温垂直结构特征[J].沙漠与绿洲气象,2015,(3):44-49,6.基金项目
2012年国家科技支撑计划项目（2012BAC23B01），2012年国家级公益性行业（气象）科研专项（GYHY201206013）共同资助。 （）
