Abstract This paper describes the progresses in the field of scientific researches of ocean color remote Sensing including spectrum studies, atomospheric correction,as well as information extraction of ocean constituents in the field of oceanographic application in past decade in china.

Abstract The realization of true color image processing of remote sensing on microcomputers and the application of SGW-93 enviromental remote sensing image processing information system are reported. Because SGW-93 system is based on the microcomputer and true color image processing adapter, the popularity, practicality, expansibility, and ratio between price and property are good. Otherwiss, the software system provides not only the geometric distortion correction of true color remote sensing image, grid processing, image mosaic, roaming check of mosaic image, histogram analysis, density slicing, contrast image enhancement, edge enhancement, but also color dynamic combinatorial page analysis,statistics of polygonal area, Chinese character edition and overlay on the image,transformation of various image file forms, color image printout. It has been solved the problem of true color remote sensing image processing and effective extraction of enviromental information on microcomputers.

Abstract The test-area of 256 × 256 pixels sub-image within Huangyan county, Zhejiang province, was selected for application of landsat TM data to landuse classifcation and thematic information extraction studies. A method of integrated supervised classifier(dynamical clustering) with unsupervised classifier (minimal distanse) is used, the results are very satisfactory. The information of citrus trees distribution is also extracted successfully, the accuracy is 95. 3%. The research provided a efficent approch to invistigate the economic forest resource and detect its change rapidly in subtropical area.

Abstract The authors made quantitative investigation and evaluation on the distribution and the capcity of shallow underground space resources of the old city district (62.5km²) of Beijing for reasonable development. The study provides important and overall basic information for reasonable use of underground space of Beijing. In the investigation, the subject emphasises the application of aerial remote sensing technique, it provides a effective and scientific modern means for the investigation.The shallow underground space of the city is affected by three factors-use condition of existing ground surface, underground space and geological condition of the shallow layer of underground. It is basic content of the investigation.

Abstract Satellite remote sensing can detect earth.surfacial features from space. The environmental factors impact on TM data spectral signatures used to differentiate the alteration from surrounding rocks, is evaluated in Dong mao area.The method studied includs three aspects(1) TM data mask; (2) PCA, (3)PC component bilinear scatter map (MPS). TM data mask is used to mask out those pixels representing loess and clouds. PCA can increases the seperation between specture features more than one TM bands and then it follows that fewer bands to be used achieve higher degree of accuracy for ident ifying the altered rock spectrum signature. The Pc Component Scattering map is used to Analysis of PC component weighings and then the classification map is made according to the analytical result. This process can be monitored by the interactive mode between geologist and computer.This method is proved to be very effective in the study. The method is also successfully applied in recognating alteration in high altitude area in Northen Canada

Abstract In this paper, a complete set of digital mosaicking methods developed for the technical problems in mosaicking multi-scenes of remote sensing images acquired in different temporal is presented. In order to eliminate the mosaicking seam caused by tone difference between the adjacent images to be mosaicked,the techniques including gray-level adjustment through histogram matching progressively, detection of the optimum mosaicking point using a sliding window,and gray-level smoothing with the help of weighting on both sides of the mosaicking point are adopted. To improve the geometric accuracy of mosaicking,control points are selected in the overlapping area of the two images so that the mosaicking can be carried out by tracing the control points. And the unitmosaicking approach is used so as to realize the mosaicking of huge volume of data on a small computer system. Based on the techniques mentioned above and corresponding software developed by the authors,the mosaic images of many regions, say, the Middle and Lower Reaches of Yangtse River, are produced successfully, and the images have won high praises from the users.

Abstract The clay mineralization and kaolinite enrichment in soil is one of the hydrocarbon’s Micro-Seepage characteristics. Study of the quantitative relationship between the clay mineral content and the reflectance spectrum of soil is more useful for the application of the Imaging Spectrometry in oil and gas exploration. In this paper we study quantitatively the relationship between the nearinfrared reflectance spectrum of soil and the concentration of the main clay minerals in soil. The estimation equations are derived with the relationship coefficient (R²)better than 0. 8.

Abstract The paper summarizes the contents, theories, methods and progress of the technoloey of remote sensing for oil-gas resource. The main aims of application of remote sensing technology in every stage of oil-gas exploration in China are presented in the paper. It also inquires into the reason of transference of underground information to surface. it is one of the key problems of the technology of remote sensing for oil-gas resource. It is necessary to establish the subject system of remote sensing for oil-gas resource along with its development, So the paper puts forward the key problems of the study of remote sensing for oil-gas resource.