 |
| Titel |
Using flushing rate to investigate spring-neap and spatial variations of gravitational circulation and tidal exchanges in an estuary |
| VerfasserIn |
D. C. Shaha, Y.-K. Cho, G.-H. Seo, C.-S. Kim, K. T. Jung |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1027-5606
|
| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 14, no. 8 ; Nr. 14, no. 8 (2010-08-05), S.1465-1476 |
| Datensatznummer |
250012393
|
| Publikation (Nr.) |
 copernicus.org/hess-14-1465-2010.pdf |
|
|
|
|
|
| Zusammenfassung |
| Spring-neap and spatial variations of gravitational circulation and tidal
exchanges in the Sumjin River Estuary (SRE) were investigated using the
flushing rate. The flushing rate was calculated between multiple estuarine
segments and the adjacent bay to examine the spatial variation of two
exchanges. The strength of gravitational circulation and tidal exchanges
modulated significantly between spring and neap tides, where stratification
alternated between well-mixed and highly-stratified conditions over the
spring-neap cycle. Tide-driven dispersive flux of salt dominated over
gravitational circulation exchange near the mouth during spring tide due to
the larger tidal amplitude that caused well-mixed conditions and rapid
exchange. In contrast, the central and inner regimes were found to be
partially stratified during spring tide due to the reduction in tidal
amplitude where both gravitational circulation and tidal exchanges were
important in transporting salt. The combined contributions of two fluxes
were also found during neap tide along the SRE due to the significant
reduction in vertical mixing that accompanied strong stratification. Gravitational
circulation exchange almost entirely dominated in transporting salt at the
upstream end during spring and neap tides. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|