VHF radar measurements of flow in a salt marsh creek
Heron, M.L., Savidge, Dana, and Blanton, Jack (2012) VHF radar measurements of flow in a salt marsh creek. In: Oceans. pp. 1-5. From: Oceans 2012, 14-19 October 2012, Hampton Road, VA, USA.
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Abstract
A VHF ocean radar system was deployed for one month in a salt marsh in coastal Georgia, USA. In this environment, radar backscatter from the marsh grass is highly attenuated and scatter from water in the narrow creeks has a broad band of Doppler shift due to the horizontal variation in water speed across the channel. By assuming a monotonic velocity profile from the edge to the middle of the channel, a theoretical relationship is derived to link the broadening of Bragg energy in the echo spectrum to varying water speed. A methodology is developed to derive the cross-creek profile of velocity variation in the main channel of the salt marsh.
| Item ID: | 26939 |
|---|---|
| Item Type: | Conference Item (Research - E1) |
| ISBN: | 978-1-4673-0829-8 |
| Keywords: | VHF ocean radar, salt marsh currents, creek flow, Bragg scatter |
| Date Deposited: | 15 May 2013 09:36 |
| FoR Codes: | 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050206 Environmental Monitoring @ 50% 02 PHYSICAL SCIENCES > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified @ 50% |
| SEO Codes: | 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960503 Ecosystem Assessment and Management of Coastal and Estuarine Environments @ 33% 96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961102 Physical and Chemical Conditions of Water in Coastal and Estuarine Environments @ 34% 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 33% |
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