Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Meteorological Science and Technology》 2016-01
Add to Favorite Get Latest Update

Atmospheric Stability and Mixed Layer Thickness in Xingtai in Recent 30 Years

Hao Jufei;Zhang Gongwen;Xingtai Meteorological Service;Handan Meteorological Service;  
According to the daily data of conventional surface observation from 1981 to 2010,the API and meteorological observation data of the same period in 2014 in Xingtai,using the method of the corrected Pasquill and the national standards,the atmospheric stability and the mixed layer thickness are calculated.The results show that in recent 30 years,atmospheric instable type shows growth trend and neutral type assumes drop tendency in Xingtai,with the change rates of 1.16% and-1.40% per 10 years,respectively.The diurnal variation of atmospheric stability under the influence of solar radiation is obvious,and the monthly change for neutral and stability types had the highest frequency.The wind is the important factor to determine the atmospheric thickness.The average thickness is 460.09 m,and the monthly change shows a unimodal distribution.The daily variation of thickness has the characteristics:spring winter autumn summer.The verification indicates that the mixed layer thickness and the occurrence frequency of various stability grades are the important factors affecting the air quality.
【Fund】: 河北省气象科研项目(13KY32);; 河北省邢台市气象科研项目(15xtky11)共同资助
【CateGory Index】: X51;P421
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved