|
|
|
Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.3, 1999³â, pp.265-279
|
ÀÏ °¿ì·®ÀÇ ¸ðÀÇ ¹ß»ýÀ» ÅëÇÑ °¥¼öÀ¯·® °è¿ÀÇ »êÁ¤ ¹× ºóµµºÐ¼®
( Low Flow Frequency Analysis of Steamflows Simulated from the Stochastically Generated Daily Rainfal Series ) |
| ±èº´½Ä;°°æ¼®;¼º´ÇÏ; ÀÎÇÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¼®»ç°úÁ¤ Á¹¾÷;ÀÎÇÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤ ¼ö·á;ÀÎÇÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| º» ¿¬±¸¿¡¼´Â, Markov ¿¬¼â ¸ðÇü¿¡ ÀÇÇØ »êÁ¤µÈ ¸ðÀÇ ÀÏ °¿ì·®À» ÀÏ À¯Ãâ¸ðÇüÀÎ Tand ¸ðÇü¿¡ ÀԷ½ÃÄÑ ¸ðÀÇ ÀÏÀ¯Ãâ·®À» »êÁ¤ÇÔÀ¸·Î½á Àú¼öÀ¯·®°è¿À» È®ÀåÇÏ´Â ¹æ¹ýÀ» °³¹ßÇÏ¿´´Ù. ¶ÇÇÑ, ¸ðÀÇµÈ ÀÏ À¯·®°è¿·ÎºÎÅÍ Áö¼Ó±â°£º° ¿¬ ÃÖÀúÄ¡ °è¿À» ÀÛ¼ºÇÏ¿´À¸¸ç, Áö¼Ó±â°£º° ¿¬ ÃÖÀúÄ¡°è¿¿¡ ´ëÇÑ ºóµµºÐ¼®À» ½ÃÇàÇÏ¿´´Ù. ºÐ¼®¿¡ »ç¿ëµÈ ºÐÆ÷ÇüÀº Lognormal-2, Lognormal-3, Gamma-2, Gamma-3, LogGamma-3, Gumbel-2, Weibull-2 ºÐÆ÷À̾úÀ¸¸ç, ¸ð¼öÃßÁ¤Àº ¸ð¸àÆ®¹ý°ú ÃÖ¿ìµµ¹ýÀ» »ç¿ëÇÏ¿´´Ù. Kolmogorov - Sminorv °ËÁ¤¹æ¹ýÀ¸·Î Áö¼Ó±â°£º° ¿¬ ÃÖÀúÄ¡ °è¿¿¡ ÀûÇÕÇÑ È®·üºÐÆ÷ÇüÀ» °áÁ¤Çϰí, ¿ë´ã´ï ÁöÁ¡À» ´ë»óÀ¸·Î ÇÏ¿© Áö¼Ó±â°£º° °¥¼ö ºóµµ°î¼±À» »êÁ¤ÇÏ¿´´Ù. º» ¿¬±¸¿¡¼ Á¦¾ÈµÈ ¹æ¹ýÀ» Àû¿ëÇÏ¸é °ú°Å Àú¼ö À¯·®°è¿ÀÇ Åë°èÀû Ư¼ºÀ» Àß ³ªÅ¸³»´Â ÀÏ À¯·®ÀÇ ¸ðÀǰ¡ °¡´É ÇÏ¿©, °¥¼öÀ¯·®°è¿ ÀÚ·á°¡ ºó°ïÇÑ À¯¿ª¿¡¼ È®·ü °¥¼ö·®À» ÃßÁ¤Çϴµ¥ À¯¿ëÇϸ®¶ó°í ÆÇ´ÜµÈ´Ù. |
|
| In this study, one of the techniques on the extension of low flow series has been developed, in which the daily streamflows were simulated by the Tank model with the input of extended daily rainfall series which were stochastically generated by the Markov chain model. The annual lowest flow serried for each of the given durations were formulated form the simulated daily streamflow sequences. The frequency of the estimated annual lowest flow series was analyzed. The distribution types to be used for the frequency analysis were two-parameter and three-parameter log-normal distribution, two-parameter and three-parameter Gamma distribution, three-parameter log-Gamma distribution, Gumbel distribution, and Weibull distribution, of which parameters were estimated by the moment method and the maximum likelihood method. The goodness-of-fit test for probability distribution is evaluated by the Kolmogorov-Sminrov test. The fitted distribution function for each duration series is applied to frequency analysis for developing duration-low flow-frequency curves at Yongdam Dam station. It was shown that the purposed technique in this study is available to generate the daily streamflow series with fair accuracy and useful to determine the probabilistic low flow in the watersheds having the poor historic records of low flow series. |
| |
| Ű¿öµå |
| Tank ¸ðÇü;Ãß°èÇÐÀû ¸ðÀÇ;Àú¼ö·®°è¿;ºóµµºÐ¼®;Markov chain;TAnk Model;Stochastic Generation;Low flow series;Frequency analysis; |
| |
|
|
 |
|
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.3, 1999³â, pp.265-279
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063130)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|