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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.1, 2000³â, pp.99-110
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( A Proposed Simple Method for Multisite Point Rainfall Generation ) |
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| In this study we proposed a simple method for generating multi-site daily rainfall based on the 1-order Markov chain and considering the spatial correlation. The occurrence of rainfall is simulated by a simple 1st-order Markov chain and its intensity to be chosen randomly from the observed data. The spatial correlation between sites could be conserved as the rainfall intensity at each site is to be chosen consistently with the target site in time through generation. It is found that the generated daily rainfall data reproduce genera] characteristics of the observed data such as average, standard deviation, average number of wet and dry days, but the clustering level in time is somewhat loosened. Thus, the lag-I correlation coefficient of the generated data gave smaller value than the observed, also the average lengths of wet run and dry run and the wet-to-wet and dry-to-dry probabilities were a bit less than the observed. This drawback seems to be overcome somewhat by choosing a proper site representing overall basin characteristics or by use of more detailed states of rainfall occurrence. |
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| Ű¿öµå |
| Àϰ¿ì;¸¶ÄÚÇÁ ¿¬¼â;°ø°»ó°ü;´ÙÁöÁ¡ ¸ðÀÇ ¹ß»ý;daily rainfall;Markov chain;spatial correlation;multi-site generation; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.1, 2000³â, pp.99-110
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063534)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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