Study finds big increase in ocean carbon dioxide absorption along West Antarctic Peninsula

Study finds big increase in ocean carbon dioxide absorption along West Antarctic Peninsula
Morning sunlight reflects off sea ice along the West Antarctic Peninsula. Credit: Drew Spacht/The Ohio State University

Climate change is altering the ability of the Southern Ocean off the West Antarctic Peninsula to absorb carbon dioxide, according to a Rutgers-led study, and that could magnify climate change in the long run.

The study, led by scientists at Rutgers University-New Brunswick, is published in the journal Nature Climate Change.

The West Antarctic Peninsula is experiencing some of the most rapid on Earth, featuring dramatic increases in temperatures, retreats in glaciers and declines in sea ice. The Southern Ocean absorbs nearly half of the —the key greenhouse gas linked to climate change—that is absorbed by all the world's oceans.

"Understanding how climate change will affect carbon dioxide absorption by the Southern Ocean, especially in coastal Antarctic regions like the West Antarctic Peninsula, is critical to improving predictions of the global impacts of climate change," said lead author Michael Brown, an oceanography doctoral student in the Center for Ocean Observing Leadership in the Department of Marine and Coastal Sciences at the School of Environmental and Biological Sciences.

The study tapped an unprecedented 25 years of oceanographic measurements in the Southern Ocean and highlights the need for more monitoring in the region.

Study finds big increase in ocean carbon dioxide absorption along West Antarctic Peninsula
The ARSV Laurence M. Gould in Antarctic waters. Credit: Colm Sweeney/NOAA

The research revealed that carbon dioxide absorption by off the West Antarctic Peninsula is linked to the stability of the upper ocean, along with the amount and type of algae present. A stable upper ocean provides algae with ideal growing conditions. During photosynthesis, algae remove carbon dioxide from the surface ocean, which in turn draws carbon dioxide out of the atmosphere.

From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and a shift in the mix of algal species. That's led to a nearly five-fold increase in carbon dioxide absorption during the summertime. The research also found a strong north-south difference in the trend of carbon dioxide absorption. The southern portion of the peninsula, which to date has been less impacted by climate change, experienced the most dramatic increase in carbon dioxide absorption, demonstrating the poleward progression of climate change in the region.

The results also demonstrate the often counterintuitive impacts of climate change. The scientists hypothesize that upper ocean stability off the West Antarctic Peninsula may ultimately decrease in the coming decades as sea ice continues to decline. Once sea ice reaches a critically low level, there won't be enough of it to prevent wind-driven mixing of the upper ocean, or to supply a sufficient amount of stabilizing meltwater. And that could result in reduced carbon dioxide absorption in the Southern Ocean over the long run.

A decrease in the 's ability to absorb could lead to more warming worldwide by allowing more of the heat-trapping gas to remain in the atmosphere.


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More information: Enhanced oceanic CO2 uptake along the rapidly changing West Antarctic Peninsula, Nature Climate Change (2019). DOI: 10.1038/s41558-019-0552-3 , https://nature.com/articles/s41558-019-0552-3
Journal information: Nature Climate Change

Provided by Rutgers University
Citation: Study finds big increase in ocean carbon dioxide absorption along West Antarctic Peninsula (2019, August 26) retrieved 15 October 2019 from https://phys.org/news/2019-08-big-ocean-carbon-dioxide-absorption.html
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Aug 26, 2019
duh , its sitting over a volcanic hot spot and volcanos emit CO2

Aug 26, 2019
duh , its sitting over a volcanic hot spot and volcanos emit CO2
Duh - and how long has it sat over that volcanic hot spot. Duh - is that volcanic hot spot causing
"dramatic increases in temperatures, retreats in glaciers and declines in sea ice?"
Duh - how much has the volcanic activity increased in the past 100 years? Duh - did you write a paper on the subject - or just have a link to another blogger - who knows nothing about the topic?

Aug 27, 2019
The water is ABSORBING the CO2, this is a good thing for climate change fears. Volcanoes, huh?

Aug 27, 2019
duh , its sitting over a volcanic hot spot and volcanos emit CO2

Aaaahh The monkey and his sockpuppets has returned for another round. Snoozy is Snoozing again, and that means he is losing...Again.Those peas must have overheated before posting this baboon barking

Aug 27, 2019
The water is ABSORBING the CO2, this is a good thing for climate change fears. Volcanoes, huh?


The hollowness between the ears full of question marks... Again ?

No Its not a good thing dummy.

The acidity of global surface waters has increased by 30% in just the last 200 years. This rate of acidification is projected through the end of the century to accelerate even further with potentially catastrophic impacts to marine ecosystems.


Aug 27, 2019
The hollowness between the ears full of question marks... Again ?


Lol FU you clown.

Aug 27, 2019
https://phys.org/...ier.html

actually the paper says plankton r gasing co2 , good for the whales ,

just this website trying for alarmism

Aug 27, 2019
actually the paper says plankton r gasing co2 , good for the whales
Where does it say that the plankton r gasing C02? I read
During photosynthesis, algae remove carbon dioxide from the surface ocean, which in turn draws carbon dioxide out of the atmosphere.

From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and a shift in the mix of algal species. That's led to a nearly five-fold increase in carbon dioxide absorption during the summertime.


Cont.

Aug 27, 2019
As reality continues to defy the dogma of the AGW Cult, what is a desperate cult to do to keep their flock ignorant. Well, fabricate even more preposterous bullshit.

Gobble up, Chicken Littles.

Aug 27, 2019
cont. From the other article that Snoose referenced we see
Climate change is causing the bulk of glacial melt that we observe, and this newly discovered source of heat is having an as-yet undetermined effect, because we do not know how this heat is distributed beneath the ice sheet
So as usual - Snoose has no point to make. Been studying that Q-anon shit for too long there Snoose.

Aug 27, 2019
As reality continues to defy the dogma of the AGW Cult
Yep - green house gas levels are decreasing, as is Earth's temperature, and sea levels. Ice sheets and glaciers are growing like crazy. Goracle has all the data to support these alternative facts. Every one go home and stop worrying...

Aug 27, 2019
onions , i stand corrected , i should have paid more attention . in any case the situation seems harmless and good for whales , the piece ends with maybes and theories that are meant to alarm \. Meanwhile all the HOT news is coming from west antarctica which happens to be an island arc.

Aug 28, 2019
snoose - as usual - you want to present yourself as the grand wizard of all knowledge regarding climate science - but clearly it is not a subject you have any real expertise in. Making stupid mistakes like the one you make above - would cause anyone with integrity to re-think their bias. You just keep on with your tourettes syndrome. You and goracle make a great pair.

Aug 28, 2019
@antigoracle.
As reality continues to defy the dogma of the AGW Cult, what is a desperate cult to do to keep their flock ignorant. Well, fabricate even more preposterous bullshit.

Gobble up, Chicken Littles.
Meanwhile, back in reality, the @antigoracle 'weaponised stupid' and/or 'bot' bought and paid for by Russian/GOP/Fossil (and now Chinese) troll-factory 'thirty pieces of silver' again displays his/its stupidity/bot-ness levels for all to see on the internet. Way to go! You'll need to get an honest job/programme once your paymasters realise what an abject failure they invested in when they employed/programmed you so long ago now. Good luck finding an honest job/programme, @antigoracle. :)

Aug 28, 2019
From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and .... a nearly five-fold increase in carbon dioxide absorption during the summertime........The results also demonstrate the often counterintuitive impacts of climate change.

Uh huh, "changes in the sea ice dynamics". LMAO
So, did GloBull warm..er..bullshit, take a holiday from 1993 to 2017.
Yep, "counterintuitive". IOW, we, the AGW Cult got it wrong, but just wait a little while my ignorant Chicken Shites and our dreams will come true.

Aug 28, 2019
@antigoracle.
From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and .... a nearly five-fold increase in carbon dioxide absorption during the summertime........The results also demonstrate the often counterintuitive impacts of climate change.
Uh huh, "changes in the sea ice dynamics". LMAO So, did GloBull warm..er..bullshit, take a holiday from 1993 to 2017.
Yep, "counterintuitive". IOW, we, the AGW Cult got it wrong, but just wait a little while my ignorant Chicken Shites and our dreams will come true.
It's the additional heat energy causing the changing currents and hence sea ice dynamics during the period in question. That is what scientists have been predicting since the earliest models; and it's all coming to pass as they predicted, with the more detailed dynamics now being self-evident to all but the dimwitted 'weaponised stupids' and 'bots' on the net. Wake up, mate.

Aug 29, 2019
''The southern portion of the peninsula, which to date has been less impacted by climate change, experienced the most dramatic increase in carbon dioxide absorption, ''

so its less impacted but has more algae in any case ?

climate change ? do they mean a natural process ? since climate is always changing

Aug 29, 2019
Wake up, @snoose! The point is that the cooler parts of any ocean are absorbing atmospheric CO2 even more dramatically because of the greater concentrations of CO2 in the atmosphere due to fossil fuel burning. And the increased CO2 absorbed will produce more algae BUT if it continues thus then the rest of the food chain, such as zooplankton that depend on their shell-formation to survive will suffer, and the whole food chain (and critical fisheries) may collapse. You need to stay awake when reading, @snoose; else you'll sound like a 'weaponised stupid' and/or 'bot' when you post a comment, as usual. Drop the stupidity and bot-posting troll-gig and go get a real honest job, mate. Good luck. :)

Aug 29, 2019
such as zooplankton that depend on their shell-formation to survive will suffer, and the whole food chain ''

so read this other article on the same topic https://phys.org/...ate.html

the plankton don't seem to be suffering and there is enough carbonate in the ocean to buffer tiny amounts of CO2 , though i'm sure u have some fake data to prove otherwise

Aug 29, 2019
@snoosebaum.
such as zooplankton that depend on their shell-formation to survive will suffer, and the whole food chain ''

so read this other article on the same topic

https://phys.org/...ate.html

the plankton don't seem to be suffering and there is enough carbonate in the ocean to buffer tiny amounts of CO2 , though i'm sure u have some fake data to prove otherwise
Note the third post in your referenced thread is from me to @copernicuson; wherein I already acknowledged that study and its results. The problem is that further 'acidification' of the ocean waters will eventually adversely affect the formation processes of calciferous and/or silica shells that protect copepods etc; and that same acidification will also adversely affect hormonal/breeding levels of many other creatures. Please wake up and start actually studying all the facts from those who actually study first-hand what is going on in the oceans and atmosphere. Good luck. :)

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