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对NASA应用于TMI的业务降水反演算法(GPROF算法)作了简单分析,并对采用该算法反演的2002年夏季我国湖南常德地区的暴雨结构和2001年7月上旬袭击中国香港地区的尤特台风结构进行了分析。对常德暴雨个例,用地面雷达数据作为实况资料进行了真实性检验。检验结果表明:该算法的整体反演效果较好,可较好地反演常德地区的地面雨强及降水结构,雨区的反演精度与降水性质有关。对尤特台风个例,将反演结果与测雨雷达的反演产品进行了定性比较,结果表明:二者反映的降水结构基本一致;GPROF算法反演的潜热垂直结构也较好地反映了台风的热力结构。最后对算法可能的改进方向进行了讨论。 相似文献
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Zheng Rongzhang 《中国地震研究》2006,20(3):316-325
INTRODUCTIONThe Fuzhou basinis located on the west bank of the Taiwan Straits in the southeastern coast ofChina. Accompanied with the regional crust movement and sea level fluctuating, marine facies ,continental facies and marine-continental alternant facies sediments are developedinthe Fuzhou basintogether withthe contiguous basins ,suchas Fuqing,Putian,Quanzhouand Zhangzhouof southeasternFujian. These sediments have complicated sedimentary structure and the underlying bedrock iscompo… 相似文献
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在流水沉积物热释光测年适用性和测年数据可靠性研究的基础上 ,对滇东、滇西地区几条主要河流的低阶地进行了系统采样和多方法的综合测年 ,获得了该区主要河流低阶地沉积物的堆积年代及其阶地面的形成时代 ,该区I级支流T1阶地堆积于 4 50 0~ 110 0 0aB .P .,其阶地地貌面形成于 4 50 0~ 50 0 0aB .P .;T2 阶地堆积于 90 0 0~ 2 2 0 0 0aB .P .,该级地貌面形成于 90 0 0~ 10 0 0 0aB .P .;主流T1阶地的堆积年龄为 90 0 0~ 170 0 0aB .P .,阶地面形成于 90 0 0~ 10 0 0 0aB .P .;T2 阶地的沉积年龄为 150 0 0~ 4 50 0 0aB .P .,阶地地貌面形成于 150 0 0aB .P .左右。同时 ,通过阶地堆积时期古气候、古环境的分析 ,探讨了该区低阶地地貌面的成因 相似文献
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Late Quaternary sinistral slip rate along the Altyn Tagh fault and its structural transformation model 总被引:17,自引:0,他引:17
The Altyn Tagh Fault (ATF) is a major boundaryfault on the northern margin of the Qinghai-TibetanPlateau and is also the longest sinistral strike-slip faultat a lithospheric scale in the Eurasian Plate. Its exis-tence has directly affected regional features of neotec-tonics, topography, geomorphology, Quaternary geol-ogy, recent crustal deformation, seismicity, climatechange and ecological environment for fauna and florain China[1—6]. The sinistral slip on the ATF and activethrusting-fo… 相似文献
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ZHU Jinfang XU Xiwei ZHANG Xiankang HUANG Zonglin CHEN Xiangxiong FANG Shengming LIU Baojin ZHENG Rongzhang . Seismological Bureau of Fujian Province Fuzhou China . Institute of Geology China Earthquake Administration Beijing China . Research Center for Exploration Geophysics China Earthquake Administration Zhengzhou China . State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing China 《中国科学D辑(英文版)》2005,48(7)
~~Joint exploration of crustal structure in Fuzhou basin and its vicinities by deep seismic reflection and high-resolution refraction as well as wide-angle reflection/refraction1.Ma,X.Y.,The Atlas of Lithospheric Dynamics of China(in Chinese),Beijing:Atlas Publishing Company,1989,1-68.
2.Liao,Q.L.,Wang,Z.M.,Wang,P.L.et al.,Explosion-generated earthquake study on crustal deep structure in Fuzhou-Quanzhou-Shantou region,Acta Geophysica Sinica(in Chinese),1988,31(3):270-280.
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In order to reveal the relation between strong convective cloud characteristics and rainfall rate,over 20000 hourly raingauge data from 333 weather stations and the corresponding 4000 convectivecloud infrared images of GMS-4 during the period of 1992—1994 in Henan,Hubei and SichuanProvinces were studied.The results show that cloud top temperature,temperature gradient,thegrowth of cloud,overshooting top and the normalized distance between a cloud covering pixels and thecluster center have certain relations to cloud precipitation.These relations can vary with differentgeographical regions.Based on the study above,a convective rainfall estimation technique wasdeveloped by the scientists in National Satellite Meteorological Center of China.Its average error is30% for daily precipitation with a correlation coefficient of 0.69. 相似文献