Now showing items 1-10 of 22
Quantifying seasonal air-sea gas exchange processes using noble gas time-series : a design experiment
(Sears Foundation for Marine Research, 2006-03)
A multi-year time-series of measurements of five noble gases (He, Ne, Ar, Kr, and Xe) at a subtropical ocean location may allow quantification of air-sea gas exchange parameters with tighter constraints than is currently ...
Rapid lateral particle transport in the Argentine Basin : molecular C-14 and Th-230(xs) evidence
Recent studies have revealed that lateral transport and focusing of particles strongly influences the depositional patterns of organic matter in marine sediments. Transport can occur in the water column prior to initial ...
Oceanography : plankton in a warmer world
Satellite data show that phytoplankton biomass and growth generally decline as the oceans’ surface waters warm up. Is this trend, seen over the past decade, a harbinger of the future for marine ecosystems?
Tidal fronts and their role in air-sea gas exchange
(Sears Foundation for Marine Research, 2006-07)
Tidal fronts are a common feature of many coastal environments. They are characterized by a surface convergence zone that enhances wave breaking and the generation of gas bubbles due to wave-current interaction. The ...
Insights into vitamin B12 production, acquisition, and use by marine microbes
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-02)
The distribution and magnitude of marine primary production helps determine the ocean's role in global carbon cycling. Constraining factors that impact this productivity and elucidating selective pressures that drive the ...
Fishing for answers
The triple disaster of the March 11, 2011, earthquake, tsunami, and subsequent radiation releases at Fukushima Dai-ichi were, and continue to be, unprecedented events for the ocean and for society. More than 80% of the ...
Reply to Morel : cadmium as a micronutrient and macrotoxin in the oceans
We thank François Morel for his interest in our study. Morel states that our conclusions are based on the approximate match between the Cd-isotope composition of cultured bacteria and the fractionation of Cd isotopes ...
Revisiting carbon flux through the ocean's twilight zone
(American Association for the Advancement of Science, 2007-04-27)
Mechanisms of metal release from contaminated coastal sediments
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2005-09)
The fate of trace metals in contaminated coastal sediments is poorly understood, yet critical for effective coastal management. The aim of this thesis is to investigate and quantify the mechanisms leading to the release ...
The determination of rare earth elements in marine sediments by ion-exchange separation and ICP emission spectrometry
(Woods Hole Oceanographic Institution, 1987-12)
A method has been developed to measure rare-earth elements (REE) in gram-sized marine sediment samples. A strong acid digestion technique followed by ion-exchange chromatography is used to solubilize, separate, and purify ...