GPS 뜰개를 이용한 해양 표면류 관측
Observation of the Sea Surface Skin Current Using a GPS-Drifter
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참고문헌
키워드
초록
A GPS-drifter was newly designed to observe the sea surface skin current and to estimate the direct wind effect on the sea surface. After conducting a test to establish and verify the accuracy of the GPS itself in the laboratory, in-situ experimental campaigns at Saemangeum in Gunsan city and Haeundae in Busan city, Korea, were carried out to ascertain the drifter track and to estimate the velocity data set on Oct. 3, 15, 23, 27 and Nov. 25, 2011. The current meters, RCM9 and ADCP, were moored together to remove the background current field, and the wind data were obtained from several marine stations such as towers and buoys in these areas. The drifter-observed velocity show good agreement with the flow obtained by the HF radar in the Saemangeum area. The direction of the wind-driven current extracted from the drifterobserved velocity was completely deflected to the right, however the degree of the angle was different according to the drift types. The average speed of the wind-driven current matched with 2.19~2.81% of the wind speed and the deflection angle was about 8.0~10.9o without adjustment for the land-sea effect, and about 2.19~2.84% and 4.1~6.0o with the adjustment for the land-sea effect.
Abstract
A GPS-drifter was newly designed to observe the sea surface skin current and to estimate the direct wind effect on the sea surface. After conducting a test to establish and verify the accuracy of the GPS itself in the laboratory, in-situ experimental campaigns at Saemangeum in Gunsan city and Haeundae in Busan city, Korea, were carried out to ascertain the drifter track and to estimate the velocity data set on Oct. 3, 15, 23, 27 and Nov. 25, 2011. The current meters, RCM9 and ADCP, were moored together to remove the background current field, and the wind data were obtained from several marine stations such as towers and buoys in these areas. The drifter-observed velocity show good agreement with the flow obtained by the HF radar in the Saemangeum area. The direction of the wind-driven current extracted from the drifterobserved velocity was completely deflected to the right, however the degree of the angle was different according to the drift types. The average speed of the wind-driven current matched with 2.19~2.81% of the wind speed and the deflection angle was about 8.0~10.9o without adjustment for the land-sea effect, and about 2.19~2.84% and 4.1~6.0o with the adjustment for the land-sea effect.
참고문헌 (22)
- 김태훈, "NSCAT Sea Wind를 이용한 해양기상자료 생산", 석사, 해양과학, pp.1999
- 이문옥, "해운대 해수욕장 전면 해상의 조류에 미치는 바람효과", 한국해안·해양공학회논문집, 22(1), pp.34~46 (2010), 한국해안,해양공학회
- 이문진, "프랙탈을 이용한 해양 확산모델 연구", 박사, 해양학, pp.1996
- 이문진, "해양 표면취송류(skin drift)의 라그랑쥐 측류 및 모델링", 해양환경공학회지, 3(2), pp.11~17 (2000)
- 이성대, "육상지형을 고려한 연안해역에서의 중규모 기상장과 취송류에 관한 수치해석", 한국해양공학회지, 20(5), pp.23~29 (2006), 한국해양공학회
- Cherniawsky JY, "Bering Strait transports from satellite altimetry", J Mar Res, 63, pp.887~900 (2005)
- Costanzo D, "Trimble", ORION GPS oil spill tracking buoy initial field trials, 1994, 1344~[DOI]
- Dean RG, "Water wave mechanics for engineers and scientists", pp.353~ (1991), World Scientific
- Ekman VW, "On the influence of the earth's rotation on ocean-currents", Ark Mat Astr Fys, 2(11), pp.1~52 (1905)
- Goodman RH, "Tracking Buoys for oil spills", Proceedings of the 2005 International Oil Spill Conference, pp.8523~8534 (2005), Miami Beach Convention Center
- Hsu SA, "Correction of land-based wind data for offshore applications: A further evaluation", J Phys Oceanogr, 16, pp.390~394 (1985)
- Laws K, "Measurements of near surface ocean currents using HF radar", 석사, pp.2001
- Liu PC, "Comparison of a two-dimensional wave prediction model with synoptic measurements in Lake Michigan", J Phys Oceanogr, 14, pp.1514~1518 (1984)
- Mass CF, "A windstorm in the Lee of a gap in a coastal mountain barrier", Mon Weather Rev, 123, pp.315~331 (1995)
- Poulain PM, "Wind effects on drogued and undrogued drifter in the eastern Mediterranean", J Atmos Ocean Tech, 26(6), pp.1144~1156 (2009)
- Rabinovich AB, "Sea ice and current response to the wind: A vector regressional analysis approach", J Atmos Ocean Tech, 24(6), pp.1086~1101 (2007)
- Reed MC, "Evaluation of surface drifters for satellite racking of oil on the sea", Proceedings of the Tenth Arctic Marine Oil Spill Program, pp.1611~1616 (1987)
- Resio DJ, "Estimation of winds over the Great Lakes", J Waterway Div-Asce, 103(2), pp.265~283 (1977)
- Schwab DJ, "Simulation and forcasting of Lake Erie storm surges", Mon Weather Rev, 106, pp.1476~1487 (1978)
- Simecek-Beatty D, "Tracking of Oil spills by ARGOSsatellite drifters: A comparison", Proceedings of the Second Thematic Conference on Romote Sensing for Marine and Coastal Environments, pp.423~434 (1994)
- Van Dorn WC, "Wind stress on an artificial pond", J Mar Res, 12, pp.249~276 (1953)
- Wu J, "Wind stress and surface roughness at sea interface", J Geophys Res, 74(2), pp.444~455 (1969)