20 December 1996, Volume 11 Issue 4

    

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  The Research of Radar Imagery Feature Information Extracting and Multiple Data Synthetic Processing in Geology

  Remote Sensing Technology and Application. 1996, 11(4): 8-14. https://doi.org/10.11873/j.issn.1004-0323.1996.4.8

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  In this paper,based on the the feature analysis of SLAR image in Xianghualing, Hunan province we fromed the integration of multi source geological information by processing geophysical,geochemical and analysising the controlling factors of mineralization.The exploratary model of Sn W deposits of Xianghualing was set up by using discriminatory analysis of multi statistics.The integrated mineralization prediction map has been achieved,the promising area of mineralization was put forward and evaluated after the synthetic analysis of the integration.As a set of practical methods and technique,the research plays an important part in radar imagery in geology and radar geology development.

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  A Study of Sun Glitter Obtaining and Removing in Air borne Ocean Color Remote Sensing

  Remote Sensing Technology and Application. 1996, 11(4): 15-20. https://doi.org/10.11873/j.issn.1004-0323.1996.4.15

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  A model of the specular reflectance of direct Sun light at a rough sea surface was derived by radiative transfer through the atmosphere and water.The distribution of sun glitter in test area was calculated by the model,compared with that in air borne imaging spectrometer data,obtained ,and successfully removed.The relationship between the sun glitter and some parameters was analysed.The results will be helpful to decide the flight conditions to avoid sun glitter.
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  Analysis of the Space temporal Evolution Feature of Vegetation Index in County District Level During the Plant Growth Cycle

  Remote Sensing Technology and Application. 1996, 11(4): 26-34. https://doi.org/10.11873/j.issn.1004-0323.1996.4.26

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  In this paper mean values of normalized difference vegetation index(NDVI) and their standard deviations in 60 counties or cities of the eastern Gansu province using the NOAA satellite AVHRR data selected the clear days during 1991～1992 have been calculated.Their temporal profiles and histograms of each county are drawn.Three types of county with major crop,grassland and forest mixed with grassland have been selected and comparatively analysed.The space temporal evolution of vegetation index in county destrict level related to the crop and pasture stage is studied.The status of the winter wheat growth cycle during 1991～1992 under serious drought condition is analyzed as a focal point.The results provide the basis of optimum phase and parameters for monitoring drought,crop yield estimation and land use classification.
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  Investigation of Vegetable Plot Distribution with Remote Sensing Technology in Shanghai

  Remote Sensing Technology and Application. 1996, 11(4): 36-40. https://doi.org/10.11873/j.issn.1004-0323.1996.4.36

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  In this paper,the information of vegetable plot in Shanghai has been extracted from the satellite TM data first time Some important results,the classified TM stereograph and drawing map of vegetable plot distribution in Shanghai with the scale of 1∶100000, have been submitted to the municipal departments in order to give them some good suggestions for the next project for non staple food production in Shanghai Some experiences in extracting the crops as the vegetable with few area quantity,small farmland, large spectral dispersion, have been gained to develop a new application in service for agriculture with remote sensing technology.
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  Cadastral Surveying of Towns and Cities Aided by Cadastral Information Systems

  Remote Sensing Technology and Application. 1996, 11(4): 41-45. https://doi.org/10.11873/j.issn.1004-0323.1996.4.41

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  Cadastral surveying of towns or cities is a kind of onerous work. According to its contents and process, this paper discusses the process to complete it with the help of cadastral information systems. Discussions of this paper will help to further understand the composition of cadastral information systems, and to guide the development and application of this kind of systems.
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  Progresses on Quantitative Remote Sensing of Snowcover

  Remote Sensing Technology and Application. 1996, 11(4): 46-52. https://doi.org/10.11873/j.issn.1004-0323.1996.4.46

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  It is the purpose for this paper to learn the new research progresses.Problems and develop trends on quantitative remote sensing of snowcover through overviewing the evaluation of relative researches and the detection abilities for snowcover area,depth,dry and wet snow by various platforms and remote sensors.
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  Internet and Geoinformation Resources

  Remote Sensing Technology and Application. 1996, 11(4): 53-59. https://doi.org/10.11873/j.issn.1004-0323.1996.4.53

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  The Internet is a general designation of lots of computer nets that can be found all over the world and provided a varied and interesting information resources At present,“Internet” has become the most popular subject of a talk.All fields of the human civilization are included in Internet resources and the Internet makes a fact that all people including geoscientists can share its information and resources.These geoinformation resources are not disorderly or unsystematic and they have their own address and URL.This paper focuses on the variety of Internet resources of specific interest to geoscientists,such as news groups,mailing lists resources pointers,etc.and discribes how to subscribe or get these resources.