Poster (Scientific congresses and symposiums)
Carbonate chemistry in the coastal zone responds more strongly to eutrophication than to ocean acidification
Borges, Alberto; Gypens, N.
2010EGU general assembly
 

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Abstract :
[en] The accumulation of anthropogenic CO2 in the ocean has altered carbonate chemistry in surface waters since pre-industrial times and is expected to continue to do so in the coming centuries. Changes in carbonate chemistry can modify the rates and fates of marine primary production and calcification. These modifications can in turn lead to feed-backs on increasing atmospheric CO2. We show using a numerical model that in highly productive near-shore coastal marine environments, the effect of eutrophication on carbon cycling can counter the effect of ocean acidification on the carbonate chemistry of surface waters. Also, changes in river nutrient delivery due to management regulation policies can lead to stronger changes in carbonate chemistry than ocean acidification. Whether antagonistic or synergistic, the response of carbonate chemistry to changes of nutrient delivery to the coastal zone (increase or decrease, respectively) is stronger than ocean acidification.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Borges, Alberto  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique
Gypens, N.
Language :
English
Title :
Carbonate chemistry in the coastal zone responds more strongly to eutrophication than to ocean acidification
Publication date :
2010
Event name :
EGU general assembly
Event place :
Vienna, Austria
Event date :
02-07 May 2010
Audience :
International
Available on ORBi :
since 10 January 2011

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