Abstract

This study reveals that, during the period 1966–2014, dust weather frequency (DWF) in northern China (north of 30°N) features two high-DWF periods, in 1966–1979 (P1) and 2000–2014 (P2), when the linear trend of DWF is removed during the study period. Here, DWF denotes the number of days of dust weather events in the spring season (March–April–May), including dust haze, blowing dust, and dust storms, which occurred in northern China. The results show that the DWF is much higher in P1 than in P2, with increased DWF distributed over southern Xinjiang, the central part of northern China. The main cause is the SST difference in the Atlantic and Pacific between the two periods. It is also found that a meridional teleconnection over East Asia in P1 and a zonal wave-like pattern over Eurasia in P2 at 200 hPa play a significant role in the interannual variability in the two periods, respectively. SST over the subtropical North Atlantic (extratropical SST between the Norwegian and Barents seas) may partly contribute to the upper-level meridional (zonal) teleconnection in P1 (P2).

Details

Title
Two different periods of high dust weather frequency in northern China
Author
FAN, Ke 1 ; XIE, Zhi-Ming 2 ; XU, Zhi-Qing 3 

 Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, China 
 Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of the Chinese Academy of Sciences, Beijing, China 
 Climate Change Research Center, Chinese Academy of Sciences, Beijing, China 
End page
269
Publication year
2016
Publication date
Jul 2016
Publisher
KeAi Publishing Communications Ltd
ISSN
16742834
e-ISSN
23766123
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2215243014
Copyright
© 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.