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  • Table of Content
       , Volume 14 Issue 4 Previous Issue    Next Issue
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    Review
    CURRENT DEVELOPMENT SITUATION AND PROSPECTS OF REMOTE SENSING IN THE WESTERN CHINA
    WU Yue-zhong, TAN Ke-Long, MA He-ping
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 1-6.   DOI: 10.6046/gtzyyg.2002.04.01
    Abstract   HTML   PDF (642KB) ( 852 )

    Through more than twenty years' development, an integrated research system of remote sensing application has come into being, which is composed of spaceflight, aerial survey, ground detection and combination with GIS. Remote sensing in western China is an important technology for the investigation and monitoring of resources, environments and hazards. In this paper, the authors first reviewed the experimental research of remote sensing technique in western China, then systemically summarized the current situation of remote sensing application in western China and briefly enumerated parts of results. Combined with the requirements of Western Development, the paper also discussed the future development strategy of remote sensing in western China.

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    THE APPLICATION OF REMOTE SENSING TECHNOLOGY TO ENVIRONMENT: ITS PROGRESS AND PROSPECTS
    SHI Yi-qiang, CHEN Chong-cheng, CHEN Ling
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 7-13.   DOI: 10.6046/gtzyyg.2002.04.02
    Abstract   HTML   PDF (756KB) ( 1010 )

    Advantages and application fields of the remote sensing technology in environment and resources are described, and recent progress of the application both in home and abroad is also analyzed. At last, the prospects of remote sensing technology in environmental protection are discussed in this paper.

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    Technology Application
    THE APPLICATION OF GMS SATELLITE TO THE REMOTE SENSING MONITORING OF RAINSTORM DISASTER
    LIU Wen, GONG Dian-li, ZHAO Yu-jin, ZHANG Shan-jun
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 14-16.   DOI: 10.6046/gtzyyg.2002.04.03
    Abstract   HTML   PDF (1141KB) ( 1015 )

    Using GMS-5 infrared, visible and vapor multi-channel remote sensing data of high space-time resolution as well as general meteorological data, this paper has formulated the satellite remote sensing image models for monitoring summer rainstorm of Shandong. The methods for using meteorological satellite data to detect rainstorm disaster are studied.

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    ORIGIN AND SOURCE REGION OF THE DUST STORM INFLUENCING BEIJING IN SPRING OF 2002
    FANG Xiang, ZHENG Xin-jiang, LU Jun-tian, SUN Jia-min, TU Zhi-fang, LI Meng-xian, WANG Guo-sheng, ZHOU Wei-dong
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 17-21.   DOI: 10.6046/gtzyyg.2002.04.04
    Abstract   HTML   PDF (1986KB) ( 981 )

    The origin and the source region of the dust weather are analysed in this paper, and some conclusions have been drawn: the climate background for the formation of the dust storm included the drought which had continued for three years and the abnormal warm during the winter of 2001. The dust weather that affected Beijing came from Mongolia and Hunshandake sandy area located in the middle of Inner Mongolia, and the former area obviously exerted more intense influence than the latter area.

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    GOLD DEPOSIT GEOLOGY AND REMOTE SENSING IN SANJIANG REGION OF EAST TIBET
    LI Yu-long, Dong Jian-le, Yang Ri-hong, YU Xue-zheng
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 22-26.   DOI: 10.6046/gtzyyg.2002.04.05
    Abstract   HTML   PDF (1450KB) ( 832 )

    There has been a long history of exploiting gold mines in Sanjiang region of Tibet, and 40 gold mines have already been found. Nevertheless, these deposits are almost all associated mines, and only very few gold deposits are of independent type and their sizes are very small. The analysis of regional geological background and mineralization conditions shows that the area must have great gold potential. Using the five elements of remote sensing, the authors analyzed characteristics of satellite photographs of ore-bearing porphyry bodies, brittle-tough shear zones, shattered-altered envelopes and their tonal anomaly, thus delineating the perspective area of gold deposits.

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    THE INFLUENCE OF MAN-MADE PROJECTS ON HYDROLOGICAL AND GEOLOGICAL ENVIRONMENTS VIEWED FROM REMOTE SENSING IMAGES: EXEMPLIFIED BY THE SEA DAM IN LIANYUNGANG
    CAI Ze-jian, WU Shu-liang
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 27-29.   DOI: 10.6046/gtzyyg.2002.04.06
    Abstract   HTML   PDF (237KB) ( 1055 )

    Human beings should get along well with the nature and must not violate the natural regularities. Based on studying satellite images of the sea dam of various times in Lianyungang, the authors consider that, while contributing to the local economic development, the dam totally changed the hydrological and geological environments of the harbor. It changed the sea currents near the shore, the transporting paths of the silts, and the erosions of the harbor, which caused the deterioration of the hydrological and geological environments. As a remedy, the authors put forward some proposals for solving these problems.

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    A STUDY OF THE METHOD FOR EXTRACTIOH OF ALTERATION ANOMALIES FROM THE ETM~+(TM) DATA AND ITS APPLICATION: Geologic Basis and Spectral Precondition
    ZHANG Yu-jun, YANG Jian-min, CHEN Wei
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 30-36.   DOI: 10.6046/gtzyyg.2002.04.07
    Abstract   HTML   PDF (1409KB) ( 1503 )

    This is the first paper in the serial articles on the new parameter for the prediction of the mineral resources-alteration RS anomalies. The geological basis and the spectral presupposition for the alteration anomalies are discussed. The result of extracting alteration anomalies in an area of more than 20 000 square kilometers within East Tianshan Mountains and the result of the in-situ investigation of some anomalies are reported. Among the 71 known deposits or mineralization spots in this area, 61 have the corresponding alteration anomalies. The coincidence coefficient is as high as 85.9%. Some new related terms are defined.

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    THE APPLICATION OF TM DATA TO ACTIVE TECTONIC ZONES IN TIBET
    ZHANG Yu-ming, BAI Chao-jun, FANG Huai-bin
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 37-39.   DOI: 10.6046/gtzyyg.2002.04.08
    Abstract   HTML   PDF (240KB) ( 962 )

    TM data are major remote sensing data now and can completely meet the precision for the identification of the active tectonic zones in Tibet. Tibet has special geographical and environmental background, and possesses a complete set and wide distribution of active tectonic zones. As conditions are extremely bad, people can hardly approach there. Applying the remote sensing technology and the high-precision TM image, we can achieve the purpose of simple imaging, high resolution, wide projection and low cost. Thus, the rapid and accurate identification of all kinds of active tectonic zones can be realized. The method has overcome such shortcomings of the traditional surveying methods as long periodicity, high cost and impossibility of making insite investigation at many places.

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    APPLICATION OF TM IMAGE IN THE SURVEY OF GEOLOGICAL FRACTURE AND MOUNTAIN HAZARDS
    YU Jian-qiang, ZHOU bin, WANG Shen-fa
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 40-43.   DOI: 10.6046/gtzyyg.2002.04.09
    Abstract   HTML   PDF (359KB) ( 1021 )

    In order to enhance the linear image, the authors conducted directional filtering of the TM image and digital elevation model (DEM), and then used false color composite technique to produce a base map. Through interpretation of the base map and field verification, the distribution of fractures in Qingyuan County was mapped. The spatial correlation between fractures and mountain hazards was also investigated. The results show that if a region is affected intensely by deep faults, the positive correlation between mountain hazards and intersection density of fractures or density of fractures are existent but not notable. By contrast, the porphyritic distribution of mountain hazards caused by volcano-tectonic activity is quite obvious.

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    Technology and Methodology
    STUDYING ON THE ALTERATION MINERALS IDENTIFICATION USING HYPERION DATA
    GAN Fu-ping, WANG Run-sheng, YANG Su-ming
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 44-50.   DOI: 10.6046/gtzyyg.2002.04.10
    Abstract   HTML   PDF (1356KB) ( 1217 )
    The minerals identification is primary study using hyperspectral remote sensing technique. And it is also the field where hyperspectral imaging may be proved to be useful. Some alteration minerals, such as sericite(including high Al and low Al respectively), kaolinite and chlorite, are identified and extracted effectively and elementary by SIT(Spectral Identification Tree) technique based on decision rules from various minerals using satellite-borne hyperspectral imaging data at Qulong district of Tibert. Comparing with the geological map, the mineral identification by SIT gained approximate result. At the same time, one new similarity alteration minerals assembled area is discovered. Some geological information gained directly by hyperspectral imaging technique can be used to prognosticate and discover new ore spots or deposits.
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    THE BEST DENSITY SEPARATION METHOD FOR EXTRACTING ROCK INFORMATION FROM REMOTE SENSING IMAGE
    WU De-wen, ZHANG Yuan-fei, ZHU Gu-chang
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 51-54.   DOI: 10.6046/gtzyyg.2002.04.11
    Abstract   HTML   PDF (327KB) ( 920 )
    The authors introduced the best separation method for ordered geological variables in mathematical geology into the extraction of rock information from remote sensing image, and then changed and improved the method, thus forming the best density separation method for remote sensing image. On such a basis, computer programming was performed to actualize the improved method. This paper deals mainly with the basic principle, actualizing means and applications of the method.
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    A STUDY ON URBAN THERMAL FIELD IN SUMMER BASED ON SATELLITE REMOTE SENSING
    CHEN Yun-hao, WANG Jie, LI Xiao-bing
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 55-59.   DOI: 10.6046/gtzyyg.2002.04.12
    Abstract   HTML   PDF (1781KB) ( 1183 )
    The luminance temperature distribution of Shanghai urban area was surveyed by means of locating, rectifying , image processing, noise erasing, temperature calculating and characteristic extracting from TM infrared data of 8/4,1998. The intensity, spatial structure and cause of UHIE (Urban Heat Island Effect) were investigated and discussed. It is shown that Thematic Mapper data are quite useful for thermal environmental quality appraisal and ecological urban planning.
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    REMOTE SENSING EXTRACTION OF ALTERATION INFORMATION RELATED TO THE WULONGGOU GOLD DEPOSIT,EAST KUNLUN MOUNTAINS
    LIU Gang
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 60-62.   DOI: 10.6046/gtzyyg.2002.04.13
    Abstract   HTML   PDF (258KB) ( 887 )
    The Alteration Information of the Wulonggou gold deposit was extracted with Principal Component Image Processing Method. This Method is effective, as evidenced by field survey and the concordance between the image altered zone and the real mineralization zone.
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    TECHNIQUES OF GEOLOGICAL REMOTE SENSING INFORMATION EXTRACTION FROM CBERS-1CCD DATA FOR MINERAL EXPLORATION
    DANG Fu-xing, FANG Hong-bin, ZHAO Fu-Yue
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 63-66.   DOI: 10.6046/gtzyyg.2002.04.14
    Abstract   HTML   PDF (1388KB) ( 1170 )
    Based on spectral characteristics of CBERS-1 CCD data from favorable Au-Cu and Pb-Sn prospecting areas in southwest Tianshan Mountains, the authors studied a series of methods for image processing of CBERS-1 CCD data to extract the information of carbonaceous formation, rock masses, and such mineralization alteration as iron oxides. The application effects have proved that it is effective to make use of CBERS-1 CCD data processing method in lithologic mapping, analysis of tectonic trends and delination of unknown mineralizations in the presence of alteration indicator minerals. The methods can be applied to extract geologic information for mineral exploration in other areas based on CBERS-1 CCD data from similar geologic environments. A quantitative technique for extracting iron-bearing mineral information is especially important in detecting remote sensing anomalies for mineral exploration in West China.
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    THE EXTRACTION OF RESIDENTIAL AREA ON LANDSAT TM IMAGERY FROM RED EARTH REGION IN CENTRAL JIANGXI
    GAO Yong-guang, ZHU Min-qiang, ZHU Ji, LIU Shuai
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 67-69.   DOI: 10.6046/gtzyyg.2002.04.15
    Abstract   HTML   PDF (244KB) ( 904 )
    Rapid and accurate collection of the information of residential area is very important in evaluating the damage caused to building and property. The difference between residential area and other areas in Fuzhou region is analyzed by the remote sensing image of landsant TM1, TM2, TM3, TM4, TM5, TM6 and TM7.As the bare lands appear everywhere and are very extensive, the differentiation of the bare lands from the residential area should naturally be emphasized. The residential area can be extracted with a model of the spectral characteristic curves on the basis of knowledge acquired, with the positioning accuracy and the area accuracy as high as 81% and 75% respectively. In a word, the residential area can be extracted from Landsat TM with a simple model.
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    GIS
    RESEARCH ON SPATIAL-TEMPORAL DATA MODEL FOR LAND SUBDIVISION
    YIN Zhang-cai, LI Quan
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 70-75.   DOI: 10.6046/gtzyyg.2002.04.16
    Abstract   HTML   PDF (424KB) ( 947 )

    This paper discusses a spatial-temporal data model applied to land subdivision. Time as a basic feature of geographic entity and the method for studying geographic time in GIS have been described. Some basic ideas for designing a spatial-temporal data model have been presented in the light of storage management and spatial-temporal semantics.

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    THE KEY TECHNOLOGY DIGITAL CITY AND ITS REALIZING STRATEGY
    WU Cheng-jian, XU Zhen-hua, DENG Ji-qiu, LI Ting
    REMOTE SENSING FOR LAND & RESOURCES. 2002, 14 (4): 76-78.   DOI: 10.6046/gtzyyg.2002.04.17
    Abstract   HTML   PDF (272KB) ( 1187 )

    Combined with the latest IT development, this paper deals mainly with the concept and the key technology of Digital City. The initial strategy for realizing Digital City in China has also been analyzed.

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