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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.6, 2003³â, pp.1069-1082
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ûµµÃµÀÇ °ÇÃµÈ ¿øÀκм®
( A Cause Analysis on the Reduction of Stream Flow for the Cheongdocheon ) |
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| The Cheongdocheon has the reaches under reduction of stream flow. We analysed the cause of the reduction. We investigated the current status of facilities for agricultural water use. We also compared the discharge measurements with the results from the continuous simulation of watershed runoff The satellite image was a tool to find some reaches of stream flow reduction under doubt. Agricultural reservoirs block up the stream and water does not flow over the reservoirs except by storm. They also discharge water through diversion channels and the water diverted does not flow through the natural stream. Farmers directly take water from the stream by weirs. The infiltration gallery of water below the stream ground makes the reach dryness perfect in Kamakchon. These are causes of the stream flow reduction. The discharge measurements are less than the simulation results of watershed runoff, and we guess that the reaches investigated have dried. We found the reaches of stream flow reduction that were under doubt from some KOMPSAT satellite images with the resolution of 6.6 m. Then, we confirmed the reduction of stream flow by a field investigation. All the above reaches have infiltration galleries of water below the stream ground. The research results are a case study on the cause analysis on the reduction of stream flow. One can obtain the KOMPSAT image for a low price and can get prior information to find the doubtful reach of stream flow reduction. |
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| Ű¿öµå |
| °ÇõÈ;KOMPSAT ¿µ»ó;Áý¼ö¾Ï°Å;ûµµÃµ;Reduction of stream flow;KOMPSAT image;infiltration gallery;Cheongdocheon; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.6, 2003³â, pp.1069-1082
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922122613)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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