Asset Details
Do you wish to reserve the book?
Emergent constraint on Arctic Ocean acidification in the twenty-first century
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Emergent constraint on Arctic Ocean acidification in the twenty-first century
Do you wish to request the book?
Emergent constraint on Arctic Ocean acidification in the twenty-first century
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Emergent constraint on Arctic Ocean acidification in the twenty-first century
2020
Overview
The ongoing uptake of anthropogenic carbon by the ocean leads to ocean acidification, a process that results in a reduction in pH and in the saturation state of biogenic calcium carbonate minerals aragonite (
Ω
arag
) and calcite (
Ω
calc
)
1
,
2
. Because of its naturally low
Ω
arag
and
Ω
calc
(refs.
2
,
3
), the Arctic Ocean is considered the region most susceptible to future acidification and associated ecosystem impacts
4
–
7
. However, the magnitude of projected twenty-first century acidification differs strongly across Earth system models
8
. Here we identify an emergent multi-model relationship between the simulated present-day density of Arctic Ocean surface waters, used as a proxy for Arctic deep-water formation, and projections of the anthropogenic carbon inventory and coincident acidification. By applying observations of sea surface density, we constrain the end of twenty-first century Arctic Ocean anthropogenic carbon inventory to 9.0 ± 1.6 petagrams of carbon and the basin-averaged
Ω
arag
and
Ω
calc
to 0.76 ± 0.06 and 1.19 ± 0.09, respectively, under the high-emissions Representative Concentration Pathway 8.5 climate scenario. Our results indicate greater regional anthropogenic carbon storage and ocean acidification than previously projected
3
,
8
and increase the probability that large parts of the mesopelagic Arctic Ocean will be undersaturated with respect to calcite by the end of the century. This increased rate of Arctic Ocean acidification, combined with rapidly changing physical and biogeochemical Arctic conditions
9
–
11
, is likely to exacerbate the impact of climate change on vulnerable Arctic marine ecosystems.
Sea surface density observations in the Arctic Ocean reveal a relationship between the present-day surface water density and the anthropogenic carbon inventory and coincident acidification, suggesting that recent acidification projections are underestimates.
We currently cannot retrieve any items related to this title. Kindly check back at a later time.