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Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.39 [2010] >
IJMS Vol.39(1) [March 2010] >
| Title: | Radiotracer investigation for bed-load movement at New Mangalore Port, Mangalore, India |
| Authors: | Sharma, V K
Pant, H J
Jagadeesh, H B
Chalawadi, A S
Girish, B K
Singh, Gursharan |
| Keywords: | Radiotracer
dredger
sediment
island
port
channel |
| Issue Date: | Mar-2010 |
| Publisher: | CSIR |
| Abstract: | Radiotracer investigation was carried out at
New Mangalore Port (NMP), Mangalore to examine the suitability of dumping site
for dredged sediment at north of port approach channel. Scandium-46 (8 Ci) as
scandium glass powder having the particle size distribution ranging from 60-100
microns was used as a radiotracer. Tracer was injected onto the seabed at the
site using a remotely operated injection system and its movement was tracked
using waterproof scintillation detector. Tracer concentration curves were
plotted for different trackings, direction and spread of tracer was obtained
from the curves. Analysis of the data showed that the sediment predominantly
moves towards north-west direction during all the four trackings carried out.
Based on the investigations, it is found that the proposed site is suitable for
disposing the dredged material, during the season of observation as the movement
of sediment is away from the shipping channel. |
| Page(s): | 49-56 |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.39(1) [March 2010]
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