FN Archimer Export Format PT J TI The Alderney Race: General hydrodynamic and particular features BT AF BAILLY DU BOIS, P DUMAS, Franck MORILLON, M FURGEROT, L VOISEUX, C POIZOT, E MEAR, Y BENNIS, Anne-Claire AS 1:1;2:2;3:1;4:3;5:1;6:3,4;7:3,4;8:5; FF 1:;2:;3:;4:;5:;6:;7:;8:; C1 Laboratoire de Radioécologie de Cherbourg, IRSN-LRC, Rue Max Pol Fouchet B.P. 10, 50130 Cherbourg en Cotentin, France Service hydrographique et océanographique de la marine – Shom, Brest, France LUSAC, Laboratoire Universitaire des Sciences Appliquées de Cherbourg, Univ. Normandie, Cherbourgen- Cotentin, France Conservatoire National des Arts et Métiers, Intechmer, Cherbourg-en-Cotentin, France Normandie Univ., UNICAEN, CNRS, UNIROUEN, Morphodynamique Continentale et Côtière (M2C), Caen, France C2 IRSN, FRANCE SHOM, FRANCE UNIV NORMANDIE, FRANCE INTECHMER CNAM, FRANCE UNIV NORMANDIE, FRANCE SI SHOM BREST SE SHOM-REC IF 1.493 TC 9 UR https://archimer.ifremer.fr/doc/00641/75286/75639.pdf https://archimer.ifremer.fr/doc/00641/75286/76621.pdf https://archimer.ifremer.fr/doc/00641/75286/76622.gif https://archimer.ifremer.fr/doc/00641/75286/76623.gif https://archimer.ifremer.fr/doc/00641/75286/76624.gif LA English DT Article CR HYD2M DE ;Alderney Race;La Hague Cape;current;tide;hydrodynamics;model AB This study presents an overview of the main hydrodynamic features of the Alderney Race strait based on in-situ measurements and 2D hydrodynamic model simulations. The strait encompasses a large amplitude of tidal properties (tidal range and tidal wave propagation) and particularly strong currents exceeding 5 m.s-1 with associated counter currents and gyres. Variations in depth, sea bottom roughness, coastal topography and current orientation around the La Hague Cape provide access to a large variety of original hydrodynamic regimes. Some are revealed as locations with a 0.4 m drop in the mean sea level associated with strong average currents. A resonance effect associated with the offshore currents can also be observed close to the coasts. The "St Martin whistle" occurs in a bay whose gyre center oscillates with a reversal of the measured current every 5 – 7 minutes. The Alderney Race represents a particular area of interest for coastal hydrodynamic studies. The available in-situ measurement datasets are rich with recordings of: sea levels; Acoustic Doppler Current Profiler (ADCP) current profiles; surface radar currents; waves; dye experiments; surface and in-depth dissolved tracer surveys. Combined with hydrodynamic models, the complexity of this area can be further understood and knowledge of hydrodynamic process and forcing parameters can be refined, which can be applied to other coastal areas. PY 2020 PD AUG SO Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences SN 1364-503X PU Royal Society VL 378 IS 2178 UT 000556600000003 DI 10.1098/rsta.2019.0492 ID 75286 ER EF