To select from among forecasting approaches to shallow water wave five that are more important and currently employed are used to hindcast a wind-wave in the western Laizhou Bay in this paper. The prediction values ob...To select from among forecasting approaches to shallow water wave five that are more important and currently employed are used to hindcast a wind-wave in the western Laizhou Bay in this paper. The prediction values obtained are compared with wave data in the vicinity of the investigated water area, from which more reasionable values selected are treated as significant wave height (H1/3) and average wave period(-↑T) of a 50-year return period at a depth of 20m below the mean low water, both values being 5.50 metres and 9.50 seconds respectively.展开更多
1 INTRODUCTION In the end of 1980＇s, an operational system for 3-D variation and assimilation of meteorological data was set up in the U.S.A that supplemented data assimilation, retrieval of satellite data and numeri...1 INTRODUCTION In the end of 1980＇s, an operational system for 3-D variation and assimilation of meteorological data was set up in the U.S.A that supplemented data assimilation, retrieval of satellite data and numerical prediction each other. NWP was thus improved. Towards the end of 1990＇s, satellite observations were extensively used in NWP at ECMWF to upgrade the quality of analysis and forecasting. Subsequently, Chinese meteorologists also made some studies on the analysis and assimilation of satellite data. Jiang et al. were the first to apply satellite imagery in numerical simulation of typhoon-inflicted heavy rain. Shen et al. and Min et al. conducted variational analysis and numerical simulation of conventional soundings and unconventional cloud imagery for limited areas and found that inclusion of cloud imagery could greatly improve rainfall forecast by the model. Zhu et al. suggested that the introduction of satellite-retrieved humidity field could better depict horizontal mesoscale structure of the real world. All of the studies above have achieved lots of meaningful results.展开更多
文摘To select from among forecasting approaches to shallow water wave five that are more important and currently employed are used to hindcast a wind-wave in the western Laizhou Bay in this paper. The prediction values obtained are compared with wave data in the vicinity of the investigated water area, from which more reasionable values selected are treated as significant wave height (H1/3) and average wave period(-↑T) of a 50-year return period at a depth of 20m below the mean low water, both values being 5.50 metres and 9.50 seconds respectively.
基金State Project for Key Fundamental Research Development Plan (2004CB418301)a project ofNational Natural Science Foundation of China (40075023)Key Technologies R&D Program of GuizhouProvince (20011145)
文摘1 INTRODUCTION In the end of 1980＇s, an operational system for 3-D variation and assimilation of meteorological data was set up in the U.S.A that supplemented data assimilation, retrieval of satellite data and numerical prediction each other. NWP was thus improved. Towards the end of 1990＇s, satellite observations were extensively used in NWP at ECMWF to upgrade the quality of analysis and forecasting. Subsequently, Chinese meteorologists also made some studies on the analysis and assimilation of satellite data. Jiang et al. were the first to apply satellite imagery in numerical simulation of typhoon-inflicted heavy rain. Shen et al. and Min et al. conducted variational analysis and numerical simulation of conventional soundings and unconventional cloud imagery for limited areas and found that inclusion of cloud imagery could greatly improve rainfall forecast by the model. Zhu et al. suggested that the introduction of satellite-retrieved humidity field could better depict horizontal mesoscale structure of the real world. All of the studies above have achieved lots of meaningful results.
