Mathematics – Logic
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3109305b&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 9, CiteID L09305
Mathematics
Logic
3
Oceanography: Biological And Chemical: Biogeochemical Cycles (1615), Global Change: Biogeochemical Processes (4805), Oceanography: Biological And Chemical: Plankton, Oceanography: General: Arctic And Antarctic Oceanography, Oceanography: Biological And Chemical: Stable Isotopes
Scientific paper
Si-cycle in surface waters was investigated in summer 2003 during a transect conducted from south-Australia to Antarctica. Diatoms dominated the microphytoplankton. Silicic acid was depleted up to 60°S a subsurface maximum of biogenic silica (= biosilica) was observed in the Permanent Open Ocean Zone. In the 100-0.01% light zone, the ratio of depth-integrated biosilica dissolution rate (D) to depth-integrated biosilica production rate (P) ranged between 0 to 3.1, being >1 for 5 of our 6 stations. The biosilica dissolution was related to the percentage of dead diatoms but not to the temperature and might be, at least partially, under bacteria mediation. This study shows that during summer the Southern Ocean silicate pump can be much less efficient than usually expected. Existence of scenarios with intense surface Si-recycling in the Southern Ocean has major consequences both for modelers and paleoceanographers.
Beucher Charlotte
Corvaisier Rudolph
Hapette Ana-Maria
Metzl Nicolas
Pichon Jean-Jacques
No associations
LandOfFree
Intense summer Si-recycling in the surface Southern Ocean does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Intense summer Si-recycling in the surface Southern Ocean, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intense summer Si-recycling in the surface Southern Ocean will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1058536