|From||"Cyr, Frederic" <Frederic.Cyr@dfo-mpo.gc.ca>|
|Date||Wed, 12 Feb 2020 13:04:10 +0000|
Quantifying and Predicting Canada’s Ocean Carbon Sink - Glider work in the Northwest Atlantic and the Labrador Sea
The ocean has taken up approximately 40% of the anthropogenic CO2 released into the atmosphere over the industrial era. Thanks to the deep convection that occurs in the Labrador Sea, the northwest Atlantic Ocean sequestrates a large part of this carbon in
the deepest layers of the ocean. The ocean’s carbon absorption rate however changes from year to year and from location to location, affecting the accuracy of estimates. This transfer of carbon from the atmosphere to the ocean also causes ocean acidification,
which involves a decrease in pH (increase in acidity) and a decrease in dissolved carbonate (one component of many marine species’ shells). Increased atmospheric CO2 over the next century elevates the risk for some keystone species, particularly via the corrosive
effects on carbonate-shelled plankton and benthic organisms of commercial importance; these have the potential to impact coastal ecosystems. Present estimates of the ocean carbon sink integrate over decadal or longer time horizons, but new ocean observations
from a variety of platforms are now making it possible to estimate the ocean carbon sink on scales of one to several years. Such estimates require new techniques to transform observations into reliable ocean carbon uptake rates. This project thus aims to use
innovative techniques (e.g. ocean gliders) to monitor the carbon sink in the NW Atlantic and the Labrador Sea.
More precisely, the project aims to:
Memorial University of Newfoundland (MUN), St. John's, Canada.
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