FN Archimer Export Format PT J TI Effect of Subsurface Mediterranean Water Eddies on Sound Propagation Using ROMS Output and the Bellhop Model BT AF Hassantabar Bozroudi, Seyed Hossein Ciani, Daniele Mahdizadeh, Mahdi Mohammad Akbarinasab, Mohammad Barbosa Aguiar, Ana Claudia Peliz, Alvaro CHAPRON, Bertrand FABLET, Ronan CARTON, Xavier AS 1:2,7;2:3;3:2;4:4;5:5;6:5;7:1;8:6;9:7; FF 1:;2:;3:;4:;5:;6:;7:PDG-ODE-LOPS-SIAM;8:;9:; C1 Laboratoire d’Océanographie Physique et Spatiale, Université de Bretagne Occidentale, Ifremer, IRD, CNRS, 29280 Brest, France Department of Non-Biologic Atmospheric and Oceanic Sciences, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas 79177, Iran Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR-ISMAR), 00133 Rome, Italy Faculty of Marine and Oceanic Sciences, University of Mazandaran, Babolsar 29280, Iran Instituto Dom Luiz, Faculdade de Ciencias da Universidade de Lisboa, 1749-016 Lisbon, Portugal Institut Mines Telecom Atlantique, Technopole Brest Iroise, 29280 Plouzane, France Laboratoire d’Océanographie Physique et Spatiale, Université de Bretagne Occidentale, Ifremer, IRD, CNRS, 29280 Brest, France C2 IFREMER, FRANCE UNIV HORMOZGAN, IRAN CNR ISMAR, ITALY UNIV MAZANDARAN, IRAN UNIV LISBOA, PORTUGAL IMT ATLANTIQUE, FRANCE UBO, FRANCE SI BREST SE PDG-ODE-LOPS-SIAM UM LOPS IN WOS Ifremer UMR WOS Cotutelle UMR DOAJ copubli-france copubli-europe copubli-univ-france copubli-int-hors-europe copubli-sud IF 3.53 TC 2 UR https://archimer.ifremer.fr/doc/00740/85249/90279.pdf LA English DT Article DE ;Mediterranean Water eddies;sound propagation;ROMS model;Bellhop model AB Ocean processes can locally modify the upper ocean density structure, leading to an attenuation or a deflection of sound signals. Among these phenomena, eddies cause significant changes in acoustic properties of the ocean; this suggests a possible characterization of eddies via acoustics. Here, we investigate the propagation of sound signals in the Northeastern Atlantic Ocean in the presence of eddies of Mediterranean Water (Meddies). Relying on a high-resolution simulation of the Atlantic Ocean in which Meddies were identified and using the Bellhop acoustic model, we investigated the differences in sound propagation in the presence and absence of Meddies. Meddies create sound channels in which the signals travel with large acoustic energy. The transmission loss decreases to 80 or 90 dB; more signals reach the synthetic receivers. Outside of these channels, the sound signals are deflected from their normal paths. Using receivers at different locations, the acoustic impact of different Meddies, or of the same Meddy at different stages of its life, are characterized in terms of angular distributions of times of arrivals and of energy at reception. Determining the influence of Meddies on acoustic wave characteristics at reception is the first step to inverting the acoustic signals received and retrieving the Meddy hydrological characteristics. PY 2021 PD DEC SO Water SN 2073-4441 PU MDPI VL 13 IS 24 UT 000737261500001 DI 10.3390/w13243617 ID 85249 ER EF