Dataset: sediment trap flux
Deployment: AE1118

Samples for particles flux measurements were obtained using free-drifting cylindrical traps (MultiPITs) deployed at 150, 200, and 300 meters depth. Sinking fluxes of C, N, and P were calculated from the elemental mass of material captured in the sediment trap, its collection surface area and deployment length. Detailed methods for all data collected as part of this study can be found in the publications arising from this study (references given below).

Sample QA/QC procedures followed those given in the associated manuscripts. Sample accuracy was assessed by using certified standards, for those measurements where standards are available. Certified standards were run with each analytical run and compared to long term control charts for respective analyses.

Detailed information on analyses:
Lomas, M.W., Burke, A., Lomas, D.A., Bell, D.W., Shen, C., Ammerman, J.W., Dyhrman, S.T. 2010.  Sargasso Sea phosphorus biogeochemistry: An important role for dissolved organic phosphorus (DOP). Biogeosciences 7: 695-710. doi: 10.5194/bg-7-695-2010
Lomas, M.W., Bates, N.R., Johnson, R.J., Knap, A.H., Steinberg, D.K., Carlson, C.A. 2013. Two decades and counting: overview of 24-years of sustained open ocean biogeochemical measurements. Deep Sea Research II doi: 10.1016/j.dsr2.2013.01.008.