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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.1, 1999³â, pp.15-29
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½Å°æ¸ÁÀ» ÀÌ¿ëÇÑ ¿ì¸®³ª¶óÀÇ ½Ã°ø°£Àû °¡¹³ÀÇ ÇØ¼®
( Spatial-Temporal Drought Analysis of South Korea Based On Neural Networks ) |
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| A new methodology to analyze and quantify regional meteorological drought based on annual precipitation data has been introduced in this paper In this study, based on posterior probability estimator and Bayesian classifier in Spatial Analysis Neural Network (SANN), point drought probabilities categorized as extreme, severe, mild, and non drought events has been defined, and a Bayesian Drought Severity Index (BPSI) has been introduced to classify the region of interest into four drought severities. In addition, to estimate the regional drought severity for the entire region, regional extreme, severe, mild, and non drought probabilities which are the areal averages of point drought probabilities over the region has been computed and applied. In this study, the proposed methodology has been applied to analyze the regional drought of South Korea during 1967-1996 years. The drought severity for the whole South Korea was defined spatially at each year and each year was classified in a drought severity criterion. The results may be useful for water manager to understand the South Korean drought with respect to the spatial and temporal variation. |
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| °¡¹³;½Å°æ¸Á;°¡¹³ È®·ü;Bayesian °¡¹³ ½Éµµ Áö¼ö;³²ÇÑ; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.1, 1999³â, pp.15-29
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920062932)
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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