Palmer Station Antarctica LTER

Amundsen Sea Sediment Trap Data

Title
Sediment trap results from Amundsen Sea Polynya International Research Expedition (ASPIRE) including C, N and mass fluxes and isotopic composition, Dec 2010 - Dec 2011

Abstract
The gravitational settling of particles is a major biogeochemical process linking the carbon cycles and ecosystems of the upper ocean, twilight zone and deep sea. Particle interceptor or sediment traps are used to collect settling particles and provide estimates of their vertical fluxes to various depths. We used a new Technicap 24-sample time series sediment trap deployed at 350 m depth in the Amundsen Sea polynya (73o 49’ S, 113o 04’ W, 2010-12.

Keywords
biogeochemistry, carbon flux, nitrogen flux, sediments, carbon cycling

LTER Data System Record
http://dx.doi.org/10.6073/pasta/813c1677e9290bc2d22fb9e946caf449
Projects
Palmer Station Antarctica LTER

Creators
Ducklow, Hugh (hducklow@ldeo.columbia.edu)

Contact
PAL LTER Information Manager (pallter-im@ucsd.edu)

Data

file Table S1: Sediment trap flux and composition data from the ASP and WAP
PDF containing the individual C and N and mass fluxes for each of 24 samples collected by the sediment trap deployed between December 2010 and January 2012.
Size: 65.94kB
Type: application/pdf
View / Download

Methods


CHN Analysis
Standard technique for measuring Carbon and Nitrogen content of particulate matter

Isotopic analysis
Determines the stable isotope composition of organic C and N in trap samples

References


Ducklow, H.W., Wilson, S.E., Post, A.F., Stammerjohn, S.E., Erickson, M., Lee, S., Lowry, K.E., Sherrell, R.M., and Yager, P.L., Particle flux on the continental shelf in the Amundsen Sea Polynya and Western Antarctic Peninsula. Elementa: Science of the Anthropocene, in press 2015. Palmer LTER Contribution #0495.