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Título

Decadal time-series of SeaWiFS retrieved CDOM absorption and estimated CO2 photoproduction on the continental shelf of the eastern United States

AutorDel Vecchio, Rossana; Subramaniam, Ajit; Schollaert Uz, Stephanie; Ballabrera-Poy, Joaquim ; Brown, Christopher W.; Blough, Neil V.
Palabras claveChromophoric dissolved organic matter
CO2
Biogeochemistry
CDOM
Fecha de publicación17-ene-2009
EditorAmerican Geophysical Union
CitaciónGeophysical Research Letters 36, L02602 (2009)
ResumenPublished algorithms were employed to convert SeaWiFS images of normalized water-leaving-radiance to absorption images of CDOM (chromophoric dissolved organic matter). The best performing algorithm was employed to produce decadal time-series of CDOM monthly composites from 1998 through 2007. Deficits in CDOM absorption coefficient for surface waters across the shelf over the summer were then acquired relative to the uniformly mixed waters prior to and following stratification (spring and fall, respectively). Estimates were attained of the photochemical oxidation of carbon to CO2 on and beyond the shelf of the Middle Atlantic Bight. Approximately 3–7 × 10^10 g C as CO2 were estimated to be produced via photooxidation of CDOM over the summertime, highlighting the significance of CDOM photochemistry and pointing out the importance of CO2 photoproduction at a global scale. In principle, this approach could be applied to global ocean color data.
Descripción5 pages, 2 figures.-- Full-text version available Open Access at: http://www.icm.csic.es/files/oce/almacen/papers/AR-2009-04.pdf
Versión del editorhttp://dx.doi.org/10.1029/2008GL036169
URIhttp://hdl.handle.net/10261/15402
DOI10.1029/2008GL036169
ISSN0094-8276
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