FN Archimer Export Format PT J TI Interannual sea–air CO2 flux variability from an observation-driven ocean mixed-layer scheme BT AF ROEDENBECK, C. BAKKER, D. C. E. METZL, N. OLSEN, A. SABINE, C. CASSAR, N. REUM, F. KEELING, R. F. HEIMANN, M. AS 1:1;2:2;3:3;4:4,5,6,7;5:8;6:9;7:1;8:10;9:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 Max Planck Inst Biogeochem, D-07745 Jena, Germany. Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England. CNRS, LOCEAN IPSL, Paris, France. Univ Bergen, Inst Geophys, Bergen, Norway. Bjerknes Ctr Climate Res, Bergen, Norway. Uni Res AS, Uni Climate, Bergen, Norway. Bjerknes Ctr Climate Res, Bergen, Norway. NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA. Duke Univ, Div Earth & Ocean Sci, Durham, NC 27706 USA. Univ Calif San Diego, Scripps Inst Oceanog, San Diego, CA 92103 USA. C2 MAX PLANCK INST BIOGEOCHEM, GERMANY UNIV E ANGLIA, UK CNRS, FRANCE UNIV BERGEN, NORWAY BCCR, NORWAY UNI RES AS, NORWAY BCCR, NORWAY NOAA, USA UNIV DUKE, USA UNIV CALIF SAN DIEGO, USA IN DOAJ IF 3.978 TC 99 UR https://archimer.ifremer.fr/doc/00295/40594/39529.pdf https://archimer.ifremer.fr/doc/00295/40594/39530.pdf LA English DT Article CR OISO 8 OISO1 OISO2 OISO3-NIVMER98 OISO4 (VT 46) OISO5 (VT 49) VT 105 / OISO 17 VT 108 / OISO-18 VT 114 / OISO-19 VT 51 / OISO 6 VT 57 / OISO 9 VT 60 / CARAUS - OISO 10 VT 62 / CARAUS - OISO 11 VT 79 / OISO 12 VT 80 / OISO 13 VT 81 / OISO 14 VT 85 / OISO 15 VT 94 / OISO 16 BO Marion Dufresne AB Interannual anomalies in the sea–air carbon dioxide (CO2) exchange have been estimated from surface-ocean CO2 partial pressure measurements. Available data are sufficient to constrain these anomalies in large parts of the tropical and North Pacific and in the North Atlantic, in some areas covering the period from the mid 1980s to 2011. Global interannual variability is estimated as about 0.31 Pg C yr−1 (temporal standard deviation 1993–2008). The tropical Pacific accounts for a large fraction of this global variability, closely tied to El Niño–Southern Oscillation (ENSO). Anomalies occur more than 6 months later in the east than in the west. The estimated amplitude and ENSO response are roughly consistent with independent information from atmospheric oxygen data. This both supports the variability estimated from surface-ocean carbon data and demonstrates the potential of the atmospheric oxygen signal to constrain ocean biogeochemical processes. The ocean variability estimated from surface-ocean carbon data can be used to improve land CO2 flux estimates from atmospheric inversions. PY 2014 SO Biogeosciences SN 1726-4170 PU Copernicus Gesellschaft Mbh VL 11 IS 17 UT 000342116000002 BP 4599 EP 4613 DI 10.5194/bg-11-4599-2014 ID 40594 ER EF