GeoLibrary » Reference Library

Search Results

Showing results 1 - 1 of 1

for: Silver MW

« New Search

Revisiting Carbon Flux Through the Ocean's Twilight Zone

Author(s): Buesseler KO, Lamborg CH, Boyd PW, Lam PJ, Trull TW, Bidigare RR, Bishop JKB, Casciotti KL, Dehairs F, Elskens M, Honda M, Karl DM, Siegel DA, Silver MW, Steinberg DK, Valdes J, van Mooy B, Wilson S

Published: April, 2007

Publisher: Science

DOI: 10.1126/science.1137959

Tags: Carbon Cycle

URL: http://www.sciencemag.org/content/316/5824/567.abstract

Abstract: The oceanic biological pump drives sequestration of carbon dioxide in the deep sea via sinking particles. Rapid biological consumption and remineralization of carbon in the “twilight zone” (depths between the euphotic zone and 1000 meters) reduce the efficiency of sequestration. By using neutrally buoyant sediment traps to sample this chronically understudied realm, we measured a transfer efficiency of sinking particulate organic carbon between 150 and 500 meters of 20 and 50% at two contrasting sites. This large variability in transfer efficiency is poorly represented in biogeochemical models. If applied globally, this is equivalent to a difference in carbon sequestration of more than 3 petagrams of carbon per year.


Showing results 1 - 1 of 1

for: Silver MW

« New Search

Website by Pandemedia