A 38-Year Climatology of Explosive Cyclones over the Northern Hemisphere  

作　　者：Gang FU Yawen SUN Jilin SUN Pengyuan LI 

机构地区：[1]Department of Marine Meteorology,Ocean−Atmosphere Interaction and Climate Laboratory,Key Laboratory of Physical Oceanography,Ocean University of China,Qingdao 266100,China [2]Division of Oceanic Dynamics and Climate,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266100,China [3]North China Sea Marine Forecasting Center,Qingdao 266100,China [4]Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation,Qingdao 266100,China

出　　处：《Advances in Atmospheric Sciences》2020年第2期143-159,共17页大气科学进展（英文版）

基　　金：the National Natural Science Foundation of China for financial support (Grant Nos. 41775042 and 41275049)

摘　　要：Explosive cyclones(ECs)over two basins in the Northern Hemisphere(20°-90°N)from January 1979 to December2016 are investigated using ERA-Interim and Optimum Interpolation Sea Surface Temperature(OISST)data.The classical definition of an EC is modified considering not only the rapid drop of the central sea level pressure of the cyclone,but also the strong wind speed at the height of 10 m in which maximum wind speeds greater than 17.2 m s^-1are included.According to the locations of the northern Atlantic and northern Pacific,the whole Northern Hemisphere is divided into the"A region"(20°-90°N,90°W-90°E)and"P region"(20°-90°N,90°E-90°W).Over both the A and P regions,the climatological features of ECs,such as their spatial distribution,intensity,seasonal variation,interannual variation,and moving tracks,are documented.Explosive cyclones（ECs） over two basins in the Northern Hemisphere（20°-90°N） from January 1979 to December2016 are investigated using ERA-Interim and Optimum Interpolation Sea Surface Temperature（OISST） data. The classical definition of an EC is modified considering not only the rapid drop of the central sea level pressure of the cyclone, but also the strong wind speed at the height of 10 m in which maximum wind speeds greater than 17.2 m s-1 are included.According to the locations of the northern Atlantic and northern Pacific, the whole Northern Hemisphere is divided into the"A region "（20°-90°N, 90°W-90°E） and "P region "（20°-90°N, 90°E-90°W）. Over both the A and P regions, the climatological features of ECs, such as their spatial distribution, intensity, seasonal variation, interannual variation, and moving tracks, are documented.

关 键 词：explosive cyclone Atlantic basin Pacific basin Northern Hemisphere annual climatology seasonal climatology spatial distribution moving track 

分 类 号：P444[天文地球—大气科学及气象学]