FN Archimer Export Format
PT J
TI Quantifying the influence of CO2 seasonality on future aragonite undersaturation onset
BT 
AF SASSE, T. P.
   MCNEIL, B. I.
   MATEAR, R. J.
   LENTON, A.
AS 1:1;2:1;3:2;4:2;
FF 1:;2:;3:;4:;
C1 Univ New S Wales, Climate Change Res Ctr, Sydney, NSW, Australia.
   CSIRO Oceans & Atmosphere Natl Res Flagship, Hobart, Tas, Australia.
C2 UNIV NEW S WALES, AUSTRALIA
   CSIRO, AUSTRALIA
IN DOAJ
IF 3.7
TC 22
UR https://archimer.ifremer.fr/doc/00293/40372/38980.pdf
   https://archimer.ifremer.fr/doc/00293/40372/38981.pdf
   https://archimer.ifremer.fr/doc/00293/40372/71296.pdf
   https://archimer.ifremer.fr/doc/00293/40372/71297.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 142 / OISO-24
   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 Ocean acidification is a predictable consequence of rising atmospheric carbon dioxide (CO2), and is highly likely to impact the entire marine ecosystem - from plankton at the base of the food chain to fish at the top. Factors which are expected to be impacted include reproductive health, organism growth and species composition and distribution. Predicting when critical threshold values will be reached is crucial for projecting the future health of marine ecosystems and for marine resources planning and management. The impacts of ocean acidification will be first felt at the seasonal scale, however our understanding how seasonal variability will influence rates of future ocean acidification remains poorly constrained due to current model and data limitations. To address this issue, we first quantified the seasonal cycle of aragonite saturation state utilizing new data-based estimates of global ocean-surface dissolved inorganic carbon and alkalinity. This seasonality was then combined with earth system model projections under different emissions scenarios (representative concentration pathways; RCPs 2.6, 4.5 and 8.5) to provide new insights into future aragonite undersaturation onset. Under a high emissions scenario (RCP 8.5), our results suggest accounting for seasonality will bring forward the initial onset of month-long undersaturation by 17 +/- 10 years compared to annual-mean estimates, with differences extending up to 35 +/- 16 years in the North Pacific due to strong regional seasonality. This earlier onset will result in large-scale undersaturation once atmospheric CO2 reaches 496 ppm in the North Pacific and 511 ppm in the Southern Ocean, independent of emission scenario. This work suggests accounting for seasonality is critical to projecting the future impacts of ocean acidification on the marine environment.
PY 2015
PD OCT
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 12
IS 20
UT 000363182200008
BP 6017
EP 6031
DI 10.5194/bg-12-6017-2015
ID 40372
ER

EF