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  • Table of Content
       , Volume 5 Issue 1 Previous Issue    Next Issue
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    Applied Research
    SEMIQUANTITATIVE RELATION BETWEEN COLOR DENSITY RATIO OF SURFACE WATER IMAGE AND ITS COMBINED POLLUTION INDEX
    Liu Shouqi, Xu Pengling
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 8-12,54.   DOI: 10.6046/gtzyyg.1993.01.02
    Abstract   HTML   PDF (337KB) ( 771 )

    Because the Surface-Waters are polluted with different pollution types and degrees, the characteristics of reflectance spectrum for them are different. These differences can be actually recorded on the color aerophotograph by the form of color density difference. The correlation between the reflective color density ratio of the surfacewater image on the color aerophotograph and the combined pollution index of the water is emphatically studied in this paper. The statistical relationship between them is given. so, It is possible to determine semiquantitatively the combined pollution degree of the surface-water based on color aerophotograph.

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    APPLICATION OF REMOTE SENSING SATELLITE IMAGE TO THE GEOLOGICAL ENVIRONMENTAL INVESTIGATION AT NANNING CITY AREA OF GUANGXI
    Fang quanxing
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 13-16.   DOI: 10.6046/gtzyyg.1993.01.03
    Abstract   HTML   PDF (1241KB) ( 834 )

    This paper introduces briefly some successful applications of satellite image for investigating on the Nanning’s geologic environment. They will be of great value to the estimation of crustal stability. They are: A. It is found that, Nanning lies in the fault basin of northeast rhomb. B. It is found that there is a fracture passing the west of YongjiangRiver No. 1 bridge. C. It is proved through investigation that the northwest fracture system is a long-term active fracture and it has close relation with earthquakes in this area.

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    SURVEY OF EARTHQUAKE DISASTERS BY AIRBORNE REMOTE SENSING IN NANCHANG AND GENGMA AREA
    Yang Zhe, Cheng Jiayu
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 17-22,42.   DOI: 10.6046/gtzyyg.1993.01.04
    Abstract   HTML   PDF (1391KB) ( 1110 )

    The earthquake disasters in Nanchang-Gengma epicenter area, which mainly were the crashed houses and the rockslides, were surveyed by airborne remote sensing. 6500 crashed houses were interpreted and 392 rock slides were measured with the aerial colour infrared film. The biggest rock slide in earthquake area,located from Shifudong to Jinglie in Gengma county, was about 1.64×106m3. According to the statistics of the crashed houses and the rock slides, the degree of the crashed houses and the distribution of the rock slide were charted respectively. The results show that the earthquake disaster can be surveyed accurately by airborne remote sensing in a short period of time after shock.

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    Technology and Methodology
    COMPUTER DISTINGUISHING ANALYSIS FOR MONITORING FOREST RECOVERY AT GU-LIAN-HE FOREST FARM
    Tang Lingli, Chen Gang, Hu Deyong, Dai Changda
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 23-28.   DOI: 10.6046/gtzyyg.1993.01.05
    Abstract   HTML   PDF (914KB) ( 777 )
    This paper describes a test in which the TMdata has been processed in the GU-Lian-He forest farm, the north of the Da-Xing-An-Ling forest zone in Hei-Long-Jiang province suffered serious conflagration during May 6 to June 2 in 1987 Anew method is developed in which K-Ltransformation is used in two periods data together. And also K-Ttransformation is used for calculating the greenness component. Several classification images on monitoring the change of forest resources have been obtained by analysing the coefficient of transformation and computer automatic distinguishing. The results have demonstrated that it is a reliable and superior method for monitoring the change of forest resource.
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    USE OF THE MICROCOMPUTER IN AUTOMATED LINEAMENT DETECTION FROM LANDSAT TM DATA
    Gao Jingchang, Wang Guangjie
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 29-34.   DOI: 10.6046/gtzyyg.1993.01.06
    Abstract   HTML   PDF (356KB) ( 740 )
    This paper has demonstrated the possibility of developing algorithms to extract lineament information from Landsat TMimagery. We made Use of image smoothing. edge tracing. Hough transformation. inverse Hough transformation etc. in automated lineament detection. After Hough transformation, local maxima are selected in the accumulator array and after inverse Hough transformation, the profile analysis for line segment identification and human-machine interactive methods are used. Some of the rules used by geologists in their image interpretation are applied in automated lineament extraction from digital imagery for improving precision.
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    Research and Discussion
    TM REMOTE-SENSING-INTERPRETATION MODELS OF A SUBTLE TYPE OF OIL-GAS RESERVOIR
    Xie zehua, Liao Guexing, Yuan peixin
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 35-42.   DOI: 10.6046/gtzyyg.1993.01.07
    Abstract   HTML   PDF (1199KB) ( 759 )

    The Interpretation principles of the remote Sensing image of a Subtle type of oil gas reservoir relevant to Compaction folds have been discussed in this paper. According to the formation mechanism of a Compaction fold, the state of stress distribution in its overburden, generated by Compacting, and the structural change affected by the force of the tectonic movement soon afterwards are analysed. This paper proposes that a series of particular fractures may appear, accompanying the formation of a Compaction fold. These frac- tures not only provide room for the storage of oil and gas but also form distinctive fracture patterns. When the fractures are weathered and eroded, they may evolve typical geomorphic features. These features Can be recognized on the TMimages, by utilizing the advantages of the multispectrum and high resolution of TMimages. Therefore the features of a subtle type of oil-gas reservoirs, generated by buried hills. reef-mounds. elastic limestone bodies. pure sandstone bodies and salt domes, Can directly be interpreted on the TMimages.

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    STUDY OF PROPERTIES FOR RED EDGE SHIFT OF WHEAT
    Yin Xianxiang, Yi Weining, Xu Qingshan
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 43-46.   DOI: 10.6046/gtzyyg.1993.01.08
    Abstract   HTML   PDF (272KB) ( 868 )

    Multitemporal spectrum data of wheat with high resolution have been processed using a digital derivation algorithm and their properties of red edge shifting toward long wavelenth have been extracted. Relationship between red edge shift and spectral resolution. growth period. chlorophyll content in leaf and coverage rate for wheat have been analysed. And then an optimal season to detect the properties of red edge shift have benn proposed,

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    ANALYSIS OF SOURCES OF GEOMETRIC DISTORTIONS IN AMSS IMAGE
    Guo Xiaofang, Yin Yonglong
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 47-54.   DOI: 10.6046/gtzyyg.1993.01.09
    Abstract   HTML   PDF (416KB) ( 1006 )

    Comparing with satellite borne MSSor TM, Airborne Multispectral Scanner (AMSS)has unique characteristics: Line-scanning rotating mirror type with large field of view, lower flying altitude and poor stability of movement and orientation of the platform. Therefore, the effects of various disturbing factors on AMSSimage are severe and geometric distortions caused by these factors in AMSSimages are more complex. Geometric correcting rot only is difficult, but also accurate and effective geometric correction cann’t be done according to imaging geometric mode of satellite borne MSSor TM. This paper quantitatively analyzes effects of various factors on geometric characteristics of AMSSimage in details, it is helpful to develop the method for correction of geometric distortions in AMSSimage.

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    TWO NOTES OF AUXILIARY DATA FOR SPOT SATELLITE IMAGE
    Xiao Guochao, Liu Jinyu
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 55-59.   DOI: 10.6046/gtzyyg.1993.01.10
    Abstract   HTML   PDF (220KB) ( 958 )

    This paper derives formulas which solve View Angle (β) and Distance from satellite to scence center (D) by using SPOTsatellite Auxiliary Data. Furthmore, according to SPOTsatellite Data, it demonstrates and analyses the formulas correctness and its precision.

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    Chemical Mechanism of Image Anomalies formed by oil and Gas micro-seepage
    Wang Fuyin
    REMOTE SENSING FOR LAND & RESOURCES. 1993, 5 (1): 59-62.   DOI: 10.6046/gtzyyg.1993.01.11
    Abstract   HTML   PDF (283KB) ( 720 )

    Oil and gas move mainly in lateral way in the deep subsurface. Having accumulated in reservoir bed, the reservoir is turned into a geological gradient body with high temperature and pressure. The direction and mode of the oil and gas movement vary significantly in the gradient body, and the movement becomes in vertical way with the micro-Seepage and the diffusion in domination. Oil and gas have Chemical reation with the overburden rock. Under the condition of the chemical reaction, a pillar body with reduced geological environment can be formed above the oil and gas area, and this brings a lot of new materials and minerals, which directly influence the electromagnetic spectrum of the materials on the ground. This is the reason that the special image ano- malies on remote Sensing pictures for oil and gas micro-Seopage are showed.

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