“Emperor’s Edict”refers to the writing of emperor himself.In the context of serving as official document,it refers to the special writ issued by emperor for sake of administering national affairs.In the official do...“Emperor’s Edict”refers to the writing of emperor himself.In the context of serving as official document,it refers to the special writ issued by emperor for sake of administering national affairs.In the official document system of Song Dynasty,“Emperor’s Edict”had always been an attention of the scholars and officials at that time due to its unusual functions in terms of drafting,promulgation and power.The Southern Song Dynasty was generally conceived by academic circles as a period when the“Administration by Emperor’s Edict”was gradually phased out.We did observe,however,with“Emperor’s Edict”placed in historical panorama of the early years of Southern Song Dynasty,an ever-strengthened power and prowess of“Emperor’s Edict”as backlit by several historical incidents such as Emperor Gaozong’s controlling and manipulating by“Emperor’s Edict”of the national armies.It reflects the political truth of strengthened imperial power in the Southern Song Dynasty.Hence,we can have access to another facet of the politics of the Southern Song Dynasty.展开更多
Numerical weather prediction(NWP) is a core technology in weather forecast and disaster mitigation. China’s NWP research and operational applications have been attached great importance by the meteorological communit...Numerical weather prediction(NWP) is a core technology in weather forecast and disaster mitigation. China’s NWP research and operational applications have been attached great importance by the meteorological community.Fundamental achievements have been made in the theories, methods, and NWP model development in China, which are of certain international impacts. In this paper, the scientific and technological progress of NWP in China since1949 is summarized. The current status and recent progress of the domestically developed NWP system-GRAPES(Global/Regional Assimilation and Pr Ediction System) are presented. Through independent research and development in the past 10 years, the operational GRAPES system has been established, which includes both regional and global deterministic and ensemble prediction models, with resolutions of 3-10 km for regional and 25-50 km for global forecasts. Major improvements include establishment of a new non-hydrostatic dynamic core, setup of four-dimensional variational data assimilation, and development of associated satellite application. As members of the GRAPES system, prediction models for atmospheric chemistry and air pollution, tropical cyclones, and ocean waves have also been developed and put into operational use. The GRAPES system has been an important milestone in NWP science and technology in China.展开更多
文摘“Emperor’s Edict”refers to the writing of emperor himself.In the context of serving as official document,it refers to the special writ issued by emperor for sake of administering national affairs.In the official document system of Song Dynasty,“Emperor’s Edict”had always been an attention of the scholars and officials at that time due to its unusual functions in terms of drafting,promulgation and power.The Southern Song Dynasty was generally conceived by academic circles as a period when the“Administration by Emperor’s Edict”was gradually phased out.We did observe,however,with“Emperor’s Edict”placed in historical panorama of the early years of Southern Song Dynasty,an ever-strengthened power and prowess of“Emperor’s Edict”as backlit by several historical incidents such as Emperor Gaozong’s controlling and manipulating by“Emperor’s Edict”of the national armies.It reflects the political truth of strengthened imperial power in the Southern Song Dynasty.Hence,we can have access to another facet of the politics of the Southern Song Dynasty.
基金Supported by the National Key Research and Development Program of China(2017YFC1501900)Middle-and Long-term Development Strategic Research Project of the Chinese Academy of Engineering(2019-ZCQ-06)。
文摘Numerical weather prediction(NWP) is a core technology in weather forecast and disaster mitigation. China’s NWP research and operational applications have been attached great importance by the meteorological community.Fundamental achievements have been made in the theories, methods, and NWP model development in China, which are of certain international impacts. In this paper, the scientific and technological progress of NWP in China since1949 is summarized. The current status and recent progress of the domestically developed NWP system-GRAPES(Global/Regional Assimilation and Pr Ediction System) are presented. Through independent research and development in the past 10 years, the operational GRAPES system has been established, which includes both regional and global deterministic and ensemble prediction models, with resolutions of 3-10 km for regional and 25-50 km for global forecasts. Major improvements include establishment of a new non-hydrostatic dynamic core, setup of four-dimensional variational data assimilation, and development of associated satellite application. As members of the GRAPES system, prediction models for atmospheric chemistry and air pollution, tropical cyclones, and ocean waves have also been developed and put into operational use. The GRAPES system has been an important milestone in NWP science and technology in China.
