Global database of surface ocean particulate organic carbon export fluxes diagnosed from the 234Th technique
| Cobertura |
MEDIAN LATITUDE: 3.006074 * MEDIAN LONGITUDE: -23.526377 * SOUTH-BOUND LATITUDE: -76.500000 * WEST-BOUND LONGITUDE: -175.600000 * NORTH-BOUND LATITUDE: 88.160000 * EAST-BOUND LONGITUDE: 178.810000 * DATE/TIME START: 1987-06-06T00:00:00 * DATE/TIME END: 2010-08-07T00:00:00 * MINIMUM DEPTH, water: 75 m * MAXIMUM DEPTH, water: 210 m |
|---|---|
| Data(s) |
04/04/2013
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| Resumo |
Through the processes of the biological pump, carbon is exported to the deep ocean in the form of dissolved and particulate organic matter. There are several ways by which downward export fluxes can be estimated. The great attraction of the 234Th technique is that its fundamental operation allows a downward flux rate to be determined from a single water column profile of thorium coupled to an estimate of POC/234Th ratio in sinking matter. We present a database of 723 estimates of organic carbon export from the surface ocean derived from the 234Th technique. Data were collected from tables in papers published between 1985 and 2013 only. We also present sampling dates, publication dates and sampling areas. Most of the open ocean Longhurst provinces are represented by several measurements. However, the Western Pacific, the Atlantic Arctic, South Pacific and the South Indian Ocean are not well represented. There is a variety of integration depths ranging from surface to 220m. Globally the fluxes ranged from -22 to 125 mmol of C/m**2/d. We believe that this database is important for providing new global estimate of the magnitude of the biological carbon pump. |
| Formato |
text/tab-separated-values, 4621 data points |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.809717 doi:10.1594/PANGAEA.809717 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Relação |
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Marine Chemistry, 103(1-2), 185-196, doi:10.1016/j.marchem.2006.07.004 Lalande, Catherine; Moran, S Bradley; Wassmann, Paul; Grebmeier, Jacqueline M; Cooper, Lee W (2008): 234Th-derived particulate organic carbon fluxes in the northern Barents Sea with comparison to drifting sediment trap fluxes. Journal of Marine Systems, 73(1-2), 103-113, doi:10.1016/j.jmarsys.2007.09.004 Le Moigne, Frédéric AC; Sanders, Richard J; Villa-Alfagene, María; Martin, Adrian Peter; Pabortsava, Katsiaryna; Planquette, Hélène; Morris, Paul J; Thomalla, Sandy J (2012): On the proportion of ballast versus non-ballast associated carbon export in the surface ocean. Geophysical Research Letters, 39(15), L15610, doi:10.1029/2012GL052980 Le Moigne, Frédéric AC; Villa-Alfagene, María; Sanders, Richard J; Marsay, Christopher M; Henson, Stephanie A; García-Tenorio, R (2013): Export of organic carbon and biominerals derived from 234Th and 210Po at the Porcupine Abyssal Plain. 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Global Biogeochemical Cycles, 22(1), GB1010, doi:10.1029/2007GB002982 Zhou, Kuanbo; Nodder, Scott D; Dai, Minhan; Hall, Julie A (2012): Insignificant enhancement of export flux in the highly productive subtropical front, east of New Zealand: a high resolution study of particle export fluxes based on 234Th:238U disequilibria. Biogeosciences, 9(3), 973-992, doi:10.5194/bg-9-973-2012 |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Le Moigne, Frédéric AC; Henson, Stephanie A; Sanders, Richard J; Madsen, Esben (2013): Global database of surface ocean particulate organic carbon export fluxes diagnosed from the 234Th technique. Earth System Science Data, 5, 295-304, doi:10.5194/essd-5-295-2013 |
| Palavras-Chave | #-; Carbon, organic flux; Comment; DATE/TIME; Date/time end; Day of the year; DEPTH, water; Identification; LATITUDE; LONGITUDE; Primary production of carbon per area, daily; Reference/source; Thorium 234, flux |
| Tipo |
Dataset |
