FN Archimer Export Format
PT J
TI Ocean Acidification from Below in the Tropical Pacific
BT 
AF Ishii, Masao
   Rodgers, Keith B.
   Inoue, Hisayuki Y.
   Toyama, Katsuya
   Sasano, Daisuke
   Kosugi, Naohiro
   Ono, Hisashi
   Enyo, Kazutaka
   Nakano, Toshiya
   Iudicone, Daniele
   Blanke, Bruno
   Aumont, Olivier
   Feely, Richard A.
AS 1:1;2:2,3;3:4;4:1;5:1,5;6:1;7:1;8:5;9:5;10:6;11:7;12:8;13:9;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 Meteorological Research Institute, Japan Meteorological Agency Tsukuba ,Japan
   Center for Climate Physics Institute for Basic Science Busan ,South Korea
   Pusan National University Busan ,South Korea
   Graduate School of Environmental Earth Sciences Hokkaido University Sapporo ,Japan
   Global Environment and Marine Department, Japan Meteorological Agency Tokyo, Japan
   Department of Integrated Marine Ecology, Stazione Zoologica Anton Dohrn Naples, Italy
   Laboratoire d’Océanographie Physique et Spatiale, UMR 6523 CNRS‐Ifremer‐IRD‐UBO, Institut Universitaire Européen de la Mer Brest, France
   Laboratoire d’Océanographie et du Climat: Expérimentations et Approches Numériques (LOCEAN), Centre IRD de Bretagne Plouzané ,France
   Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle Washington ,USA
C2 JAPAN METEOROL AGCY, JAPAN
   IBS, SOUTH KOREA
   UNIV BUSAN, SOUTH KOREA
   UNIV HOKKAIDO, JAPAN
   JAPAN METEOROL AGCY, JAPAN
   STAZ ZOOL ANTON DOHRN, ITALY
   CNRS, FRANCE
   IRD, FRANCE
   NOAA, USA
UM LOPS
IN WOS Cotutelle UMR
   copubli-france
   copubli-europe
   copubli-int-hors-europe
IF 5.703
TC 11
UR https://archimer.ifremer.fr/doc/00641/75337/76003.pdf
LA English
DT Article
AB Identifying ocean acidification and its controlling mechanisms is an important priority within the broader question of understanding how sustained anthropogenic CO2 emissions are harming the health of the ocean. Through extensive analysis of observational data products for ocean inorganic carbon, here we quantify the rate at which acidification is proceeding in the western tropical Pacific Warm Pool, revealing ‐0.0013 ±0.0001 yr‐1 for pH and ‐0.0083±0.0007 yr‐1 for the saturation index of aragonite for the years 1985‐2016. However, the mean rate of total dissolved inorganic carbon increase (+0.81 ±0.06 μmol kg‐1 yr‐1) sustaining acidification was ~20% slower than what would be expected if it were simply controlled by the rate of atmospheric CO2 increase and transmitted through local air‐sea CO2 equilibration. Joint Lagrangian and Eulerian model diagnostics indicate that the acidification of the Warm Pool occurs primarily through the anthropogenic CO2 that invades the ocean in the extra‐tropics, is transported to the tropics through the thermocline shallow overturning circulation, and then re‐emerges into surface waters within the tropics through the Equatorial Undercurrent from below. An interior residence time of several years to decades, acting in conjunction with the accelerating CO2 growth in the atmosphere, can be expected to contribute to modulating the rate of Warm Pool acidification. Key Points Progress of ocean acidification in the western tropical Pacific Warm Pool was identified using the data of oceanic CO2 measurements The rate of oceanic CO2 increase here was ~20% lower than that expected from the growth rate of the mixing ratio of CO2 in the atmosphere Inter‐gyre exchange of anthropogenic CO2 within the thermocline predominantly controls the rate of acidification in this region 
PY 2020
PD AUG
SO Global Biogeochemical Cycles
SN 0886-6236
PU American Geophysical Union (AGU)
VL 34
IS 8
UT 000566242800001
DI 10.1029/2019GB006368
ID 75337
ER

EF