ORBi: Borges Alberto - Estimating pCO2 from remote sensing in the Belgian coastal zone

Reference : Estimating pCO2 from remote sensing in the Belgian coastal zone


	Document type :	Scientific congresses and symposiums : Paper published in a journal
	Discipline(s) :	Life sciences : Environmental sciences & ecology Life sciences : Aquatic sciences & oceanology
	To cite this reference:	http://hdl.handle.net/2268/81111

Title :	Estimating pCO2 from remote sensing in the Belgian coastal zone
Language :	English
Author, co-author :	Borges, Alberto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
	Ruddick, Kevin [Royal Belgian Institute of Natural Sciences (RBINS), Management Unit of the North Sea Mathematical Models (MUMM/UGMM/BMM), 100 Gulledelle, B-1200 Brussels, Belgium > > > >]
	Lacroix, Geneviève [Royal Belgian Institute of Natural Sciences (RBINS), Management Unit of the North Sea Mathematical Models (MUMM/UGMM/BMM), 100 Gulledelle, B-1200 Brussels, Belgium > > > >]
	Nechad, Bouchra [Royal Belgian Institute of Natural Sciences (RBINS), Management Unit of the North Sea Mathematical Models (MUMM/UGMM/BMM), 100 Gulledelle, B-1200 Brussels, Belgium > > > >]
	Astoreca, Rosa [Université Libre de Bruxelles, Ecologie des Systèmes Aquatiques, Campus Plaine CP 221 B-1050 Ixelles, Belgium > > > >]
	Rousseau, Véronique [Université Libre de Bruxelles, Ecologie des Systèmes Aquatiques, Campus Plaine CP 221 B-1050 Ixelles, Belgium > > > >]
	Harlay, Jérôme [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Publication date :	2010
Journal title :	ESA Special Publication SP-686
Audience :	International
Event name :	ESA Living planet conference
Event date :	28 June -2 July 2010
Event organizer :	ESA
Event place (city) :	Bergen
Event country :	Norway
Abstract :	[en] In coastal waters, a purely field observation based approach will probably be insufficient to better constrain estimates of air-sea CO2 fluxes, to study their inter-annual variability and their long-term changes. One approach to achieve these goals is to use remotely sensed fields of relevant biogeochemical variables to extrapolate available data, and produce maps of the partial pressure of CO2 (pCO2) and air-sea CO2 fluxes. In the open ocean this approach has to some extent been successfully used based on fields of chlorophyll-a (Chla) and sea surface temperature (SST). This approach remains challenging in coastal waters that have complex optical properties (Case-II waters) and that exhibit highly dynamic pCO2 temporal and spatial variations. In the frame of the Belgian funded BELCOLOUR-II project (Optical remote sensing of marine, coastal and inland waters; http://www.mumm.ac.be/BELCOLOUR/), three field cruises per year (April, July and September) for optical measurements were carried in 2007, 2008, 2009 in the Southern Bight of the North Sea (SBNS). Based on these data-sets, we derived algorithms to compute pCO2 from Chl-a and sea surface salinity (SSS) using multipolynomial regressions (MPR). Here we report the first application of the MPR algorithms to derive pCO2 fields in the Belgian coastal zone based on data gathered in 2007, using remote sensed Chl-a (MERIS) and SSS computed with a 3-D hydrodynamical model of SBNS (COHERENS).
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/81111

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