The three-dimensional structure of precipitation on a seasonal scale in the Asian-Pacific＇s three monsoon regions is investigated based on the tropical rainfall measurement mission （TRMM） data. The results show tha...The three-dimensional structure of precipitation on a seasonal scale in the Asian-Pacific＇s three monsoon regions is investigated based on the tropical rainfall measurement mission （TRMM） data. The results show that： （1） The maximum seasonal variation of the relative proportional difference of convective precipitation and stratiform rain occurs in the East Asian monsoon region, the second occurs in the Indian monsoon region, and the minimum is in the northwest Pacific monsoon region. In both the northwest Pacific mon soon region and the Indian monsoon region, the convective rain is proportionately larger than stratiform rain in all four seasons. （2） Cloud ice reaches its maximum at around 9 km. Cloud water＇s maximum range is between 3 and 4 km. The large value area of precipitation ice is mainly between 4 and 9 km. The precipi tation water particle is concentrated mostly below 4 km. The largest content is from the ground to 2 km. （3） The most remarkable variance of the content of cloud ice in the Indian monsoon region occurs from spring to winter, and the content of cloud water in the northwest Pacific is always higher than that in the other two regions. （4） The latent heat profile has a similar double-peak structure. The first peak is at 4 km and the second peak is at 2 km. In autumn and winter, the latent heat is higher in the northwest Pacific than in other two regions. In all three regions, the release of the latent heat is higher in summer and autumn than in spring and winter.展开更多
TheThe Regional Conference on Asian Pacific Countries of the IGU was held from August 13 to 19,1990 at Beijing,on the premises of Peking University.It was the first of such event of the Union to take place in China.Th...TheThe Regional Conference on Asian Pacific Countries of the IGU was held from August 13 to 19,1990 at Beijing,on the premises of Peking University.It was the first of such event of the Union to take place in China.The Conference was attended by 1017 geographers from 40 countries of six continents(Asia 788,Europe 125,North America 74,Oceania 15,Latin America 7,Africa 3),with the larger delegations from:U.S.A.(45),South Korea(44),Japan(31),France(18),Italy(17),FRG(16),Canada(16),U.S.S.R.(13),Australia(10),Spain(9),U.K.(8)and India(8).China composed the majority,and Taipei sent a sizable delegation of 15,the rest of the participating countries sent 1-4 delegates each.The organizing committee of the Conference included the executive committee members of the Geographical Society of China and members of China Committee for the IGU.Profs.Huang Bingwei and Wu Chuanjun were responsible for all the activities organized during the Conference.展开更多
The boreal summer intraseasonal oscillation(BSISO) is simulated by the Climate System Model(CSM) developed at the Chinese Academy of Meteorological Sciences(CAMS), China Meteorological Administration. Firstly, the res...The boreal summer intraseasonal oscillation(BSISO) is simulated by the Climate System Model(CSM) developed at the Chinese Academy of Meteorological Sciences(CAMS), China Meteorological Administration. Firstly, the results indicate that this new model is able to reasonably simulate the annual cycle and seasonal mean of the precipitation, as well as the vertical shear of large-scale zonal wind in the tropics. The model also reproduces the eastward and northward propagating oscillation signals similar to those found in observations. The simulation of BSISO is generally in agreement with the observations in terms of variance center, periodicity, and propagation, with the exception that the magnitude of BSISO anomalous convections are underestimated during both its eastward propagation along the equator and its northward propagation over the Asian–Pacific summer monsoon region. Our preliminary evaluation of the simulated BSISO by CAMS-CSM suggests that this new model has the capability, to a certain extent, to capture the BSISO features, including its propagation zonally along the equator and meridionally over the Asian monsoon region.展开更多
基金The National Natural Science Foundation of China under contract No.41275060the National Key Basic Research Program of China under contract No.2014CB953903+2 种基金the National Basic Research Program of China under contract No.2011CB403500the Fundamental Re-search Funds for the Central Universities of China under contract No.13lgjc03the National Natural Science Foundation of China under contract No.41275145
文摘The three-dimensional structure of precipitation on a seasonal scale in the Asian-Pacific＇s three monsoon regions is investigated based on the tropical rainfall measurement mission （TRMM） data. The results show that： （1） The maximum seasonal variation of the relative proportional difference of convective precipitation and stratiform rain occurs in the East Asian monsoon region, the second occurs in the Indian monsoon region, and the minimum is in the northwest Pacific monsoon region. In both the northwest Pacific mon soon region and the Indian monsoon region, the convective rain is proportionately larger than stratiform rain in all four seasons. （2） Cloud ice reaches its maximum at around 9 km. Cloud water＇s maximum range is between 3 and 4 km. The large value area of precipitation ice is mainly between 4 and 9 km. The precipi tation water particle is concentrated mostly below 4 km. The largest content is from the ground to 2 km. （3） The most remarkable variance of the content of cloud ice in the Indian monsoon region occurs from spring to winter, and the content of cloud water in the northwest Pacific is always higher than that in the other two regions. （4） The latent heat profile has a similar double-peak structure. The first peak is at 4 km and the second peak is at 2 km. In autumn and winter, the latent heat is higher in the northwest Pacific than in other two regions. In all three regions, the release of the latent heat is higher in summer and autumn than in spring and winter.
文摘TheThe Regional Conference on Asian Pacific Countries of the IGU was held from August 13 to 19,1990 at Beijing,on the premises of Peking University.It was the first of such event of the Union to take place in China.The Conference was attended by 1017 geographers from 40 countries of six continents(Asia 788,Europe 125,North America 74,Oceania 15,Latin America 7,Africa 3),with the larger delegations from:U.S.A.(45),South Korea(44),Japan(31),France(18),Italy(17),FRG(16),Canada(16),U.S.S.R.(13),Australia(10),Spain(9),U.K.(8)and India(8).China composed the majority,and Taipei sent a sizable delegation of 15,the rest of the participating countries sent 1-4 delegates each.The organizing committee of the Conference included the executive committee members of the Geographical Society of China and members of China Committee for the IGU.Profs.Huang Bingwei and Wu Chuanjun were responsible for all the activities organized during the Conference.
基金This work is jointly supported by the National Natural Science Foundation of China （41420104006 and 41330423）, and by the R＆D Special Fund for Public Welfare Industry （Meteorology） （GYHY201506012）.
基金Supported by the National Key Research and Development Program(2016YFA0601504)National Basic Research and Development(973)Program of China(2015CB453203)+1 种基金National Natural Science Foundation of China(41675068)Basic Research Funds of the Chinese Academy of Meteorological Sciences(2015Z002)
文摘The boreal summer intraseasonal oscillation(BSISO) is simulated by the Climate System Model(CSM) developed at the Chinese Academy of Meteorological Sciences(CAMS), China Meteorological Administration. Firstly, the results indicate that this new model is able to reasonably simulate the annual cycle and seasonal mean of the precipitation, as well as the vertical shear of large-scale zonal wind in the tropics. The model also reproduces the eastward and northward propagating oscillation signals similar to those found in observations. The simulation of BSISO is generally in agreement with the observations in terms of variance center, periodicity, and propagation, with the exception that the magnitude of BSISO anomalous convections are underestimated during both its eastward propagation along the equator and its northward propagation over the Asian–Pacific summer monsoon region. Our preliminary evaluation of the simulated BSISO by CAMS-CSM suggests that this new model has the capability, to a certain extent, to capture the BSISO features, including its propagation zonally along the equator and meridionally over the Asian monsoon region.
