Paleoclimatic Changes During the Last 2.5 Ma Recorded in the Kathmandu Basin, Central Nepal Himalayas

PALEOCLIMATIC CHANGES DURING THE LAST 2.5Ma RECORDED IN THE KATHMANDU BASIN, CENTRAL NEPAL HIMALAYAS     

THE PROCESSES OF ATMOSPHERIC IMPURITIES TRANSPORTATION OVER THE QINGHAI—TIBET PLATEAU AS REVEALED BY SEASONAL RECORDS OF SNOW CHEMISTRY

THE PROCESSES OF ATMOSPHERIC IMPURITIES TRANSPORTATION OVER THE QINGHAI—TIBET PLATEAU AS REVEALED BY SEASONAL RECORDS OF SNOW CHEMISTRY     

VALLEY SLOPE DEFORMATION BY INTERACTION OF MASS ROCK CREEP,TALUS CREEP AND RAPID LANDSLIDES ALONG THE KALI GANDAKI RIVER IN THE HIMALAYAS OF WESTERN NEPAL

VALLEY SLOPE DEFORMATION BY INTERACTION OF MASS ROCK CREEP,TALUS CREEP AND RAPID LANDSLIDES ALONG THE KALI GANDAKI RIVER IN THE HIMALAYAS OF WESTERN NEPAL1　AmatyaKM ,InavaliBM .GeologicalMapofNepalwithExplanatoryNote[M ].DepartmentofMinesandGeology(DMG) ,Kathmandu ,Nepal,1994 2　ChigiraM .Long termGravitationalDeformationofRocksbyMassRockCreep[J].EngineeringGeology ,1992 ,32 :15 7～ 184. 3　SELBYMJ .HillslopeMate…     

The Uplift Process of Qing-Zang Plateau

THE UPLIFT PROCESS OF QING-ZANG PLATEAU     

The Crust Velocity Structure of Profile 820 in the Area of East China Sea and Its Vicinity

THE CRUST VELOCITY STRUCTURE OF PROFILE 820 IN THE AREA OF EAST CHINA SEA AND ITS VICINITY     

“重庆市区雾害的潜势预报、警报系统”概况

“重庆市区雾害的成因及潜势预报、警报系统的研究”是由国家科委下达的重大研究课题。课题分设“雾害的大气物理、大气化学和预警系统”3个分课题。本课题从1989年起开始,历时3年,到1991年12月17日通过专家组鉴定、验收。鉴定书的结论是:该项成果的水平居国内领先,达到国际水平。     

重庆市空气污染预报

本文通过分析近十年来冬季的污染监测资料,TSP与气系条件的关系,提炼出影响大气污染物扩散的若干气象、污染因子,建立了以TSP为预报对象的多元回归预报方程和自回归预报方程,制作污染浓度预报,获得了满意的结果。     

Information flow and controlling in regularization inversion of quantitative remote sensing

In order to minimize uncertainty of the inversed parameters to the largest extent by making full use of the limited information in remote sensing data, it is necessary to understand what the information flow in quantitative remote sensing model inversion is, thus control the information flow. Aiming at this, the paper takes the linear kernel-driven model inversion as an example. At first, the information flow in different inversion methods is calculated and analyzed, then the effect of information flow controlled by multi-stage inversion strategy is studied, finally, an information matrix based on USM is defined to control information flow in inversion. It shows that using Shannon entropy decrease of the inversed parameters can express information flow more properly. Changing the weight of a priori knowledge in inversion or fixing parameters and partitioning datasets in multi-stage inversion strategy can control information flow. In regularization inversion of remote sensing, information matrix based on     

Principle and application of three-band gradient difference vegetation index

Vegetation index is a simple, effective and experiential measurement of terrestrial vegetation activity, and plays a very important role in qualitative and quantitative remote sensing. Aiming at shortages of current vegetation indices, and starting from the analysis of vegetation spectral characteristics, we put forward a new vegetation index, the three-band gradient difference vegetation index (TGDVI), and established algorithms to inverse crown cover fraction and leaf area index (LAI) from it. Theoretical analysis and model simulation show that TGDVI has high saturation point and the ability to remove the influence of background to some degree, and the explicit functional relation with crown cover fraction and LAI can be established. Moreover, study shows that TGDVI also has the ability to partly remove the influence of thin cloud. Experiment in the Shunyi District, Beijing, China shows that reasonable result can be reached using the vegetation index to retrieve LAI. We also theoretically analyzed the     

Sedimentary, Magmatic and Tectonic Constraints on the Formation of the Yulong Supper-Large Porphyry Copper Polymetal Deposit, East Tibet

ＳＵＰＲＡ ＳＵＢＤＵＣSEDIMENTARY, MAGMATIC AND TECTONIC CONSTRAINTS ON THE FORMATION OF THE YULONG SUPPER0-LARGE PORPHYRY COPPER POLYMETAL DEPOSIT, EAST TIBET