Freshwater budget of the Canada Basin, Arctic Ocean, from salinity, δ18O, and nutrients
作者： M. Yamamoto-Kawai , F. A. McLaughlin , E. C. Carmack , S. Nishino , K. Shimada
DOI: 10.1029/2006JC003858
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摘要: [1] The contribution of freshwater components (e.g., meteoric, sea ice, and Pacific water) in the Canada Basin is quantified using salinity, δ18O, nutrient data collected 2003 2004. The penetration depth ice meltwater limited to upper 30 m, brine, rejected during formation, observed from 250 m depth. fraction meteoric water high 50 decreases with entering via Bering Strait main source below throughflow, which transports salinity 32.5 together supplied upstream Strait, contributes up 75% input (>3200 km3 a−1) Basin. mean residence time estimated be 11 years. Precipitation river runoff both North American Eurasian continents add >800 a−1 formation removes <900 (<0.6 fresh water. export liquid ∼40% flux Arctic Ocean Atlantic Ocean.
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