Shelf‐Basin Interactions and Water Mass Residence Times in the Western Arctic Ocean: Insights Provided by Radium Isotopes
نویسندگان
چکیده
منابع مشابه
Radium isotopes to investigate the water mass pathways on the Kerguelen Plateau (Southern Ocean)
Natural iron fertilization promotes the phytoplankton bloom that takes place on the Kerguelen Plateau in the Indian sector of the Southern Ocean. We measured Ra (T1/2 1⁄4 5.75 yr) and Ra (T1/2 1⁄4 1602 yr) in waters above the Kerguelen Plateau in order to provide information on the water-mass pathways, which in turn could help elucidate the mechanisms controlling iron fertilization in that area...
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P. Coupel, H. Y. Jin, D. Ruiz-Pino, J. F. Chen, S. H. Lee, H. L. Li, M. Rafizadeh, V. Garçon, and J. C. Gascard Laboratoire d’Océanographie et du Climat, Expérimentation et Approches Numériques (LOCEAN-UPMC), UMR7159, CNRS – INSU, Paris, France Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA, PRC, Hangzhou 310012, China Department of Oceanography, Pusan...
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Radium isotopes were used to determine the crustal residence times of hydrothermal fluids from two geothermal wells (Svartsengi and Reykjanes) from the Reykjanes Peninsula, Iceland. The availability of rock samples from the subsurface (to depths of 2400 m) allowed direct comparison of the radium isotopic characteristics of the fluids with those of the rocks within the high temperature and press...
متن کامل20 Years of Air-Water Gas Exchange Observations for Pesticides in the Western Arctic Ocean.
The Arctic has been contaminated by legacy organochlorine pesticides (OCPs) and currently used pesticides (CUPs) through atmospheric transport and oceanic currents. Here we report the time trends and air-water exchange of OCPs and CUPs from research expeditions conducted between 1993 and 2013. Compounds determined in both air and water were trans- and cis-chlordanes (TC, CC), trans- and cis-non...
متن کاملEvaluation of shelf–basin interaction in the western Arctic by use of short-lived radium isotopes: The importance of mesoscale processes
Shelf–basin exchange in the western Arctic was evaluated by use of water-column analyses of Ra/ Ra ratios and the first measurements of the short-lived Ra (T1/2 1⁄4 3.64 d) in the Arctic. During the 2002 shelf–basin interaction (SBI) program, excess Ra was detected over the shelf but was not found seaward of the shelf-break. Similarly, the Ra/ Ra ratio dropped rapidly from the shelf across the ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Oceans
سال: 2019
ISSN: 2169-9275,2169-9291
DOI: 10.1029/2019jc014988