FN Archimer Export Format PT J TI An observing system simulation for Southern Ocean carbon dioxide uptake BT AF MAJKUT, Joseph D. CARTER, Brendan R. FROELICHER, Thomas L. DUFOUR, Carolina O. RODGERS, Keith B. SARMIENTO, Jorge L. AS 1:1;2:1;3:2;4:1;5:1;6:1; FF 1:;2:;3:;4:;5:;6:; C1 Princeton Univ, Atmospher & Ocean Sci Program, Dept Geosci, Princeton, NJ 08544 USA. ETH, Inst Biogeochem & Pollutant Dynam, CH-8092 Zurich, Switzerland. C2 UNIV PRINCETON, USA ETH ZURICH, SWITZERLAND IF 2.147 TC 45 UR https://archimer.ifremer.fr/doc/00290/40115/38747.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 117 / OISO-20 VT 120 / OISO-21 VT 127 / OISO-22 VT 136 / OISO-23 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 DE ;carbon;Southern Ocean;observational system simulation experiment AB The Southern Ocean is critically important to the oceanic uptake of anthropogenic CO2. Up to half of the excess CO2 currently in the ocean entered through the Southern Ocean. That uptake helps to maintain the global carbon balance and buffers transient climate change from fossil fuel emissions. However, the future evolution of the uptake is uncertain, because our understanding of the dynamics that govern the Southern Ocean CO2 uptake is incomplete. Sparse observations and incomplete model formulations limit our ability to constrain the monthly and annual uptake, interannual variability and long-term trends. Float-based sampling of ocean biogeochemistry provides an opportunity for transforming our understanding of the Southern Ocean CO2 flux. In this work, we review current estimates of the CO2 uptake in the Southern Ocean and projections of its response to climate change. We then show, via an observational system simulation experiment, that float-based sampling provides a significant opportunity for measuring the mean fluxes and monitoring the mean uptake over decadal scales. PY 2014 PD JUL SO Philosophical Transactions Of The Royal Society A-mathematical Physical And Engineering Sciences SN 1364-503X PU Royal Soc VL 372 IS 2019 UT 000337366900003 BP 1 EP 17 DI 10.1098/rsta.2013.0046 ID 40115 ER EF