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Reduction in density of suspended - sediment - laden natural waters
| Content Provider | CSIR - National Institute of Oceanography (NIO) |
|---|---|
| Author | Joseph, A. Desa, E. Desa, E. Smith, D. Peshwe, V. B. Vijaykumar, K. Desa, J. A. E. |
| Description | Proceedings of the Second Indian National Conference on Harbour and Ocean Engineering Inchoe-97 Thiruvananthapuram December |
| Abstract | Pressure measurements made in various turbid natural waters have led to the inference that the effective depth-mean in-situ density values peff of these waters are less than (approx equal to 2.70%) their static bulk densities and also (approx equal to 0.4% - 4.5%) that of the density of the same water without suspended sediment. Teh values of peff in a given site differed from one tidal cycle to another (approx equal to 1.9%). These values varied slightly (less than 0.8%) from mid-tide to slack water of the same tidal cycle, with peff being lower at mid-tide. It was found that the use of bulk deisity to estimate tidal height gave an under-estimation of tidal range (upto 7%). The under-estimation has been corrected (to within plus or minus 1.5%) with the use of peff parameter. For clear waters there was no observable under-estimation in tidal range. The observations strongly suggest that suspended sediments play a hitherto unknown role in the apparent in-situ density reduction effect seen in turbid natural waters. |
| Starting Page | 708 |
| Ending Page | 718 |
| Page Count | 11 |
| File Format | |
| Volume Number | 2 |
| Language | English |
| Publisher | Cent. for Earth Sci. Stud., Cochin (India) |
| Access Restriction | Open |
| Subject Keyword | Resuspended sediments Density Tidal cycles Turbidity Estuaries |
| Content Type | Text |
| Resource Type | Article |
