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LANDFORM MORPHOLOGIC RELATIONS BETWEEN INTER-GULLIED AND GULLIED LAND AREAS——A CASE STUDY OF THE WANGJIAGOU WATERSHED IN THE WEST OF SHANXI PROVINCE

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International Journal of Sediment research 2006年第1期21卷 62-73页

作者： Hao CHEN1, Hai-yan FANG2, Qiang-guo CAI 3. Guang-lin LIANG4.and Zong-qi YUE51Associate Professor, 2Doctor, 3.rofessor, 4.ostgraduate for master, Key laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographical Sciences and Natural {3.s research, chinese {4. of Sciences, beijing, 100101, china 1Professor, College of {3. and Environment, Southwest Agricultural University, Chongqing, 4.0716, china 2 Doctor, 4.Postgraduate for master, Graduate University of chinese {4. of Sciences, beijing, 10004., china 5 Associate Professor, Department of Civil Engineering, Hong Kong University, Hong Kong, china Key laboratory of Water Cycle and Related Land Surface Processes Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Department of Civil Engineering Hong Kong University Hong Kong China

Previous studies on erosional relations between inter-gullied and gullied lands have mainly concentrated on exploration of water and sediment relations, with few quantitative studies of evolution relations between inter-gullied land and gullied landform erosion in small catchments. This paper, using information from a 1:5000 digital orthophotomap (DOM), digital elevation model (DEM), and topographic map of the same period and of the same scale, quantitatively analyzes the impact and interactions of inter-gullied and gullied land geomorphologic characteristics on the dissected extent of a catchment using orthogonal polynomial regression analysis. Results indicate that gullies play a leading role in the catchment morphologic evolution and extent of cracked ground surface. When inter-gullied land areas are the same, a 0.1 km2 gullied land area has the maximum effect on the erosive evolution intensity of the catchment cracked degree. The smaller the catchment area is, the greater the extent of cracked ground surface and gully intensity would be. The geomorphologic evolution mechanism of gullied catchments can be explained as a function of geomorphologic indicators of inter-gullied and gullied land characteristics.

关键词： Inter-gullied land erosion Gully erosion Small catchments Gullied land area Loess Plateau

Winter heat budget in the Huanghai Sea and the effect from Huanghai Warm Current (Yellow Sea Warm Current)

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Acta Oceanologica Sinica 2011年第5期30卷 56-63页

作者： QIAO Lulu WANG Xiaohua WANG Yongzhi WU Dexing BAO Xianwen MU Lin Key laboratory of Seafloor Science and Exploration technology Ocean University of China Qingdao 266100 China Key laboratory of Physical Oceanography Ministry of Education Ocean University of China Qingdao 266100 China School of Physical Environmental and Mathematical Sciences University of New South Wales at Australian Defence Force Academy Canberra Australia State Key laboratory of Satellite Ocean Environment Dynamics Second Institute Oceanography State Oceanic Administratim Hangzhou 310012 China The First Institute of Oceanography State Oceanic Administration Qingdao 266061 China National Marine Data and information Service State Oceanic Administration Tianjin 300171 China

Four sources of surface heat flux （SHF） and the satellite remote sensing sea surface temperature （SST） data are combined to investigate the heat budget closure of the Huanghai Sea （HS） in *** is found that heat loss occurs all over the HS during winter and the area averaged heat content change decreases with a rate of-106 W/m *** with the area averaged SHF of-150 W/m 2 from the four SHF data sets,it can be concluded that the SHF plays a dominant role in the HS heat budget during *** contrast,the heat advection transported by the Huanghai Warm Current （Yellow Sea Warm Current,HWC） accounted for up to 29% of the HS heat content *** correlation,especially in February,between the storm events and the SST increase demonstrates that the HWC behaves strongly as a wind-driven compensation current.

关键词： heat budget Huanghai Sea and Bohai Sea surface heat flux Huanghai Warm Current (Yellow Sea Warm Current)

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面向用户的数字图书馆管理机制探讨

图书情报工作 2003年第3期47卷 109-112页

作者：李珍中国科学院文献情报中心北京100080

探讨面向用户的数字图书馆体系的结构和特征,阐述实体图书馆、虚拟图书馆的功能及其有机整合,以及形成基于数字化和网络化的由信息资源中心、用户服务中心、研究发展中心和管理协调中心4.部分构成数字化图书馆的知识管理模式。

关键词：数字图书馆面向用户知识管理

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柴达木盆地西部第三系异常高压与油气成藏

石油学报 2004年第4期25卷 13-18页

作者：郭泽清钟建华刘卫红饶孟余刘云田中国石油勘探开发研究院廊坊分院河北廊坊065007 石油大学资源与信息学院中石油青海油田公司甘肃敦煌736202

柴达木盆地在一定深度及区域上普遍存在异常高压。一方面 ,异常高压是油气运聚的一种重要动力来源 ;另一方面 ,异常高压在一定地质背景下是控制油气分布的重要因素。在油气运移中 ,可以使上覆封隔层产生大量微裂缝 ,油气向上运移到在较... 详细信息

柴达木盆地在一定深度及区域上普遍存在异常高压。一方面 ,异常高压是油气运聚的一种重要动力来源 ;另一方面 ,异常高压在一定地质背景下是控制油气分布的重要因素。在油气运移中 ,可以使上覆封隔层产生大量微裂缝 ,油气向上运移到在较低压储集层中 ,也可以使封闭性断层开启 ,通过断层进行侧向运移 ;异常高压形成的流体势能驱动流体从凹陷中心向凹陷边缘流动 ,最终形成油气藏围绕生油凹陷分布的格局。该区与异常压力有关的油气成藏模式可以概括为 3.类型 ,即 :位于异常高压体系内部裂缝型高压油气藏 ,异常高压体系下部孔隙型高压油气藏 ,位于封隔层之上的孔隙型常压油气藏。

关键词：柴达木盆地第三系异常高压流体势油气运移油气成藏模式

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科技查新机构评价指标体系研究

图书情报工作 2009年第12期53卷 13-16页

作者：谢新洲柯贤能滕跃吴淑燕北京大学中国竞争情报与竞争力研究中心北京100871 北京市科学技术研究院竞争情报与创新评估重点实验室北京100048 北京市科学技术情报研究所北京100048 国家科技奖励工作办公室北京100045 中国移动通信研究院北京100053

从查新报告评价和查新机构评价两个方面对我国科技查新评价研究的现状进行了综述。从查新委托人、查新机构和科技管理机构的角度论述了科技查新机构评价的意义。从现实需求出发,通过问卷调查和专家调研,构建了由文献资源、人力资源、查... 详细信息

从查新报告评价和查新机构评价两个方面对我国科技查新评价研究的现状进行了综述。从查新委托人、查新机构和科技管理机构的角度论述了科技查新机构评价的意义。从现实需求出发,通过问卷调查和专家调研,构建了由文献资源、人力资源、查新设备、内部管理、科研和奖励、查新业务等六大类指标构成的科技查新机构评价指标体系。

关键词：科技查新机构评价指标体系

Ceometric calibration of high-resolution remote sensing sensors

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Ceometric calibration of high-resolution remote sensing sens...

An efficient gradient method for maximum entropy regularizing retrieval of atmospheric aerosol particle size distribution function

5th Asian Symposium on Geographic information System from Computer Science & Engineering View

作者： LIANG Hong-you~(1,2,3. GU Xing-fa~1 TAO Yu~1 QIAO Chao-fei~4.(1.Graduate University of chinese academy of Sciences,{3. 10003.,P.R.china 2.State Key {4.oratory of remote Sensing Science,Institute of remote Sensing Applications,CAS,{3. 100101,P.R.china 3.Henan Polytechnic University,Jiaozuo 4.4.03.P.R.china 4.Development and research Center for Surveying and Mapping State Bureau of Surveying and Mapping,{3. 10004.,P.R.china)

＜正＞This paper introduces the applications of high-resolution remote sensing imagery and the necessity of geometric calibration for remote sensing sensors considering assurance of the geometric accuracy of remote sensing *** the paper analyzes the general methodology of geometric *** the DMC sensor geometric calibration as an exam- ple,the paper discusses the whole calibration ***,it gave some concluding remarks on geometric calibration of high-resolution remote sensing sensors.

关键词： digital camera geometric calibration geometric correction remote sensing

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An efficient gradient method for maximum entropy regularizin...

STUDY ON WETLAND resourceS IN DELTASAROUND BOHAI SEA

中国科学院地质与地球物理研究所2008学术年会

作者： Yanfei Wang~* Division of Oil and Gas resource,Institute of Geology and Geophysics,chinese academy of Sciences,P.O.Box 9825,{3. 100029,PR{4.

The aerosol particle size distribution function can be retrieved by solving the moment *** is an ill-posed problem,since it is known that,we are often faced with limited/insufficient observations in remote sensing and the observations are *** overcome the ill-posed nature,regularization techniques such as Phillips-Twomey ’s regularization,Tikhonov’s smooth regularization as well as some iterative methods were *** the particle size distribution function is always nonnegative,and we are often faced with incomplete data,the concept of maximum entropy from information theory and statistic mechanics can be used for this ***,in this paper,we study the maximum entropy-based regularization method and develop a nonmonotone gradient method for solving the corresponding optimization *** numerical tests for both synthetic problem and practical problem are given to show the efficiency and feasibility of the proposed algorithm.

关键词： Aerosol particle size distribution Moment problem Inversion Maximum entropy regularization Gradient method

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chinese Geographical Science 2000年第2期10卷 151-158页

作者： LIU Zhen-qian LIU Hong-yu LU Xian-guo(Changchun Institute of Geography the chinese academy of Scicnces, Changchan 13.021, P.R. china) Changchun Institute of Geography the Chinese Academy of Sciences Changchun P. R. China

Based on the data of wetlands in Huanghe delta and Liaohe delta which were go by the combination of remote Sensing(RS), Geographical information System(GIS) and Global Position System(GPS), the paper discusses the sindlarities and differences of wetlands in the two regions by comparing them in composition, distribuhon, spatial pattern of landscape and ecology. Problems in using and conserving weiland resources are shown in the paper, which aimto provide basis for the further study on the landscape ecology, function, and sustainable use of weilands in the deltas. The study shows that the wedands in the two deltas are characterized by peat variety of weiland types, distribution with the shape of strip, abundant resources of wild plants and animals, intense effects of human activities on the structure of the landscapes, broad prospects for development and great environmental pressure. It is necessary to successfull solve the contradiction between development and protection. At present, the most pressing matter of the moment is to protect environment and control pollution.

关键词： Huanghe delta Liaohe delta wetlands resource classification system

Retrieval of the aerosol particle size distribution function by incorporating a priori information

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Retrieval of the aerosol particle size distribution function...