A large number of moored, longer term, time-series deep-sea sediment traps have been deployed by our group and others in the world ocean over the past two decades, and more are being deployed every year. We are proposing a compilation of published and unpublished sediment trap flux data that will result in an integrated and consistent data set. Our goal is to refine our present estimates of global and regional fluxes and remineralization of biogenic material (organic C, calcite, aragonite, opal, N, and P) and lithogenic particle input in the ocean interior. More specifically, we are proposing a 3-year project to
We will compare our results with synoptic data sets on primary production, plankton ecology, export flux, surface nutrient concentration, upper water column structure, aeolian dust input, and surface water pCO2 to distinguish environmental or ecological factors that may affect the export and degradation of biogenic material in the deep-sea (e.g. f-ratio, seasonality, food web structure, "ballast" effect from aeolian dust). This synthesis effort will provide an important basis for introducing a more accurate particle flux field and better constrained algorithms for the recycling of biogenic material in GCM models.
Data from additional sediment trap deployments will be added to this data set as they become available.
Honjo, S., Francois, R. (2013) Global sediment trap synthesis; source data from 1987-1999 (U.S. JGOFS Synthesis & Modeling Phase project results). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 4 September 2013) Version Date 2013-09-04 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3173 [access date]
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