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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.2, 1996³â, pp.129-141
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¿¬¼ÓÁ¡ äÃ븦 ÀÌ¿ëÇÑ À¯»ç·® °è»ê
( Sediment Discharge Based on a Time-Integrated Point Sample ) |
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| ÀÏÁ¡¿¬¼Ó äÃë, ¸è ¼Óµµ ºÐÆ÷ ¹× LaursenÀÇ Åä»ç³óµµ ºÐÆ÷½ÄÀ» ÀÌ¿ëÇÑ ÃÑ ºÎÀ¯ À¯»ç·® °è»ê¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ÀÌ ¹æ¹ýÀº ¹Ì±¹ ¸®¿À±×¾Èµ¥ °¿¡¼ äÃëÇÑ ÀÚ·á¿¡ ÀÇÇØ °ËÁõµÇ¾ú´Ù. ÀÌ ¹æ¹ýÀ¸·Î °è»êµÈ ³óµµºÐÆ÷´Â $eta$, $kappa$, ±×¸®°í wÀÇ º¸ÆíÀûÀÎ °ªÀ» »ç¿ëÇÏ¿© °è»êÇÑ º¸Á¤ Àü¼ö½É äÃë¹æ¹ý°ú Àß ÀÏÄ¡ÇÏ¿´´Ù. Áö¿ªÆ¯¼º¿¡ ¸Â´Â ³óµµ¿Í ¼Óµµ ºÐÆ÷½ÄÀÇ °è¼ö x ¿Í z¸¦ »ç¿ëÇÏ¿´À» ¶§´Â ´õ ÁÁÀº °á°ú¸¦ ¾òÀ» ¼ö ÀÖ¾ú´Ù. ÀÏÁ¡ äÃë¿¡ »ç¿ëÇÑ ÀÌ ¹æ¹ý°ú ÀϹÝÀûÀ¸·Î ¸¹ÀÌ ¾²´Â Àü¼ö½É äÃ븦 »ç¿ëÇÑ ¹æ¹ý°úÀÇ ÃÑ À¯»ç·®ÀÇ Â÷À̴ äÃë¶§ »ý±æ ¼ö ÀÖ´Â ¿À·ù Á¤µµ·Î ÀÛÀº °ÍÀ̾ú´Ù. ÀÏÁ¡ ¿¬¼Ó äÃë¿¡ ÀÇÇÑ ÃÑ ºÎÀ¯ À¯»ç·® ÃøÁ¤Àº ¿©·¯ °¡Áö Áß¿äÇÑ ÀÌÁ¡À» °¡Áö°í ÀÖ´Ù. äÃë ½Ã°£¿¡ ¹× ºñ¿ëÀ» Àý°¨ÇÒ ¼ö ÀÖÀ¸¸ç äÃ븦 ÀÚÁÖ ÇÒ ¼ö ÀÖ°í À¯»ç·® º¯È¿¡ ½Å¼ÓÇÏ°Ô ´ëÀÀÇÒ ¼ö ¸í½Ç»óºÎ ¶ÇÇÑ ÀÌ ¹æ¹ýÀº ¹Ì·¡¿¡ Ãß±¸ÇØ¾ß ÇÒ ÀÚµ¿Ã¤Ãë ¹æ¹ýÀ¸·Î »ç¿ëµÉ ¼ö ÀÖ´Ù. |
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| A procedure for computing total suspended sediment load is presented based on a single point-integrated sample, a power velocity distribution, and Laursen's sediment concentration distribution equation. The procedure was tested with field data from the Rio Grande River. Computed concentrations agreed well with depth-integrated measurements corrected for unmeasured load using nominal values of $eta$, $kappa$ and w. Even better agreement was obtained when site-specific data were used to define the x and z exponents of the velocity and concentration distributions. The difference between total suspended load computed using a single measurement and this procedure and conventional computations based on depthintegrated measurements is well within sampling error. There are major advantages in estimating total suspended load using a single time-integrated suspended-sediment point sample. Less field time is required; sampling costs are greatly reduced; and sampling can be more frequent and better timed to measure the changing sediment load. Single-point sampling makes automatic sampling procedures more feasible. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.2, 1996³â, pp.129-141
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920096987)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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