Temporal and Spatial Variations of Dry-hot Windy Days in the North China Under the Condition of Climatic Change in the Future
LIU Ling1, LIU Jiandong1, WU Dingrong1, XU Yinlong2, JIANG Chaoyang1
1. Chinese Academy of Meteorological Sciences, Beijing 100081, China;2. Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences; Key Laboratory of Agro-Environment & Climate Change of Agriculture Ministry, Beijing 100081, China
Abstract：Dry Hot Windy Day (DHWD) is one of the main agrometeorological disasters happend in the north China area which could cause the serious yield loss of winter wheat. Using daily weather data created by RPECIS, which is the one of most widely used regional climate models developed by Hadley Center, DHWD in the future SRES A2 and B2 climate change scenarios is analyzed. Results show that PRECIS predicts DHWD for A2 scenario is 6.5 days/year, and is lower in coastal, north, and south areas, but higher in the middle west area. DHWD is increase in most areas except the far southern area, the maximum increase rate is 0.145 day/year; for B2 scenario, DHWD is 6.0 day/year, with similar regional distribution trend of A2, i.e., higher in the middle area and lower in the other areas. DHWD is slightly decrease in southwest area and a little increase in northeast area; however increase rate is much lower than that for A2. The trends and variations of DHWD in the future for both SRES A2 and B2 scenarios are analyzed. Results are able to serve as the argometeorological disaster prevention and reduction, and make the contribution to the relative policy making.
刘玲;刘建栋;邬定荣;许吟隆;姜朝阳. 气候变化情景下华北地区干热风的时空分布特征[J]. , 2012, 30(19): 24-27.
LIU Ling;LIU Jiandong;WU Dingrong;XU Yinlong;JIANG Chaoyang. Temporal and Spatial Variations of Dry-hot Windy Days in the North China Under the Condition of Climatic Change in the Future. , 2012, 30(19): 24-27.