中教数据库 > 大气科学进展 > 文章详情

Analysis and Simulation of the Stratospheric Quasi-zero Wind Layer over Korla, Xinjiang Province, China

【摘要】The stratospheric quasi-zero wind layer (QZWL) is a transition region with low zonal wind speeds in the lower stratosphere at an altitude of 〜20 km. The zonal wind direction above the QZWL layer is opposite to that below the QZWL layer and the north-south wind component is small. The atmospheric wind field near the stratospheric QZWL is an important factor affecting the flight altitude and dynamic control of stratospheric airships. It is therefore necessary to study the stratospheric QZWL to provide better environmental information for these aircraft. High-resolution radiosonde data were used to analyze the characteristics of the stratospheric QZWL over Korla, Xinjiang Province, China. A weak wind layer in which the wind direction suddenly reversed from westerly to easterly was observed at 〜20 km in the lower stratosphere, characteristic of the stratospheric QZWL. The Weather Research and Forecasting model was used to simulate the profiles of the horizontal wind speed and direction over Korla. The forcing effect of each diagnostic term in the equation on the zonal wind speed was analyzed. The results showed that the advection term was the dominant factor forcing the zonal wind speed. The wave term had a secondary forcing role, although the forcing effect of the wave term on the zonal wind speed was significant in some regions.

【关键词】

28 2页 大气科学进展 2019年10期 免费 中教数据库

全文来源于中教数据库

推荐文献
标题 作者 发表时间 全网下载量 热度 篇幅(页) 价格

Diurnal Variations of Precipitation over North China Regulated by theMountain-plains Solenoid and Boundary-layer Inertial Oscillation He PAN 2019年8期 10 1 2 免费

收藏

Optical Properties and Source Analysis of Aerosols over aDesert Area in Dunhuang, Northwest China Yongjing MA 2017年8期 113 2 2 免费

收藏

Characteristics of Surface Solar Radiation under Different Air Pollution Conditions over Nanjing, China: Observation and Simulation Hao LUO 2019年10期 285 2 2 免费

收藏

Evaluation of the Global and Regional Assimilation and Prediction System forPredicting Sea Fog over the South China Sea Huijun HUANG 2019年6期 96 1 2 免费

收藏

Locating Parent Lightning Strokes of Sprites Observed over aMesoscale Convective System in Shandong Province, China Anjing HUANG 2018年11期 240 2 2 免费

收藏

  Contamination and risk assessment of heavy metals infarmland soils of Baghrash County, Xinjiang,Northwest China Ajigul Mamut 2017年3期 66 1 2 免费

收藏

Statistical analysis of the safety information websites in China YANG Fu-qiang 2016年5期 427 3 2 免费

收藏

--

--

中国科学院

--

Copyright © 2013-2016 ZJHJ Corporation,All Rights Reserved

京ICP备15058941号-1

京公网安备 11011102000866号