FN Archimer Export Format PT J TI Antarctic icebergs: A significant natural ocean sound source in the Southern Hemisphere BT AF MATSUMOTO, Haru BOHNENSTIEHL, DelWayne R. TOURNADRE, Jean DZIAK, Robert P. HAXEL, Joseph H. LAU, T. -K. A. FOWLER, Matt SALO, Sigrid A. AS 1:1,2;2:3;3:4;4:1,2;5:1,2;6:1,2;7:1,2;8:2; FF 1:;2:;3:PDG-ODE-LOS;4:;5:;6:;7:;8:; C1 Oregon State Univ, Cooperat Inst Marine Resources Studies, Newport, OR 97365 USA. NOAA, Pacific Marine Environm Lab, Acoust Program, Seattle, WA 98115 USA. N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA. IFREMER, Lab Oceanog Spatiale, Plouzane, France. C2 UNIV OREGON STATE, USA NOAA, USA UNIV N CAROLINA STATE, USA IFREMER, FRANCE SI BREST SE PDG-ODE-LOS IN WOS Ifremer jusqu'en 2018 copubli-int-hors-europe IF 2.923 TC 28 UR https://archimer.ifremer.fr/doc/00205/31613/30035.pdf LA English DT Article DE ;Antarctica;iceberg;ocean noise;seasonality;trend AB In late 2007, two massive icebergs, C19a and B15a, drifted into open water and slowly disintegrated in the southernmost Pacific Ocean. Archived acoustic records show that the high-intensity underwater sounds accompanying this breakup increased ocean noise levels at mid-to-equatorial latitudes over a period of ∼1.5 years. More typically, seasonal variations in ocean noise, which are characterized by austral summer-highs and winter-lows, appear to be modulated by the annual cycle of Antarctic iceberg drift and subsequent disintegration. This seasonal pattern is observed in all three Oceans of the Southern Hemisphere. The life cycle of Antarctic icebergs affects not only marine ecosystem but also the sound environment in far-reaching areas and must be accounted for in any effort to isolate anthropogenic or climate-induced noise contributions to the ocean soundscape. PY 2014 PD AUG SO Geochemistry Geophysics Geosystems SN 1525-2027 PU Amer Geophysical Union VL 15 IS 8 UT 000342693400020 BP 3448 EP 3458 DI 10.1002/2014GC005454 ID 31613 ER EF