Global estimate of submarine groundwater discharge based on an observationally constrained radium isotope model

DOI Web Site Web Site Web Site Web Site 被引用文献12件
  • Eun Young Kwon
    Research Institute of Oceanography/School of Earth and Environmental Sciences (BK21) Seoul National University Seoul South Korea
  • Guebuem Kim
    Research Institute of Oceanography/School of Earth and Environmental Sciences (BK21) Seoul National University Seoul South Korea
  • Francois Primeau
    Earth System Science University of California Irvine California USA
  • Willard S. Moore
    Department of Earth and Ocean Sciences University of South Carolina Columbia USA
  • Hyung‐Mi Cho
    Research Institute of Oceanography/School of Earth and Environmental Sciences (BK21) Seoul National University Seoul South Korea
  • Timothy DeVries
    Department of Geography University of California Santa Barbara California USA
  • Jorge L. Sarmiento
    Atmospheric and Oceanic Sciences Princeton University Princeton New Jersey USA
  • Matthew A. Charette
    Woods Hole Oceanographic Institution Woods Hole Massachusetts USA
  • Yang‐Ki Cho
    Research Institute of Oceanography/School of Earth and Environmental Sciences (BK21) Seoul National University Seoul South Korea

書誌事項

公開日
2014-12-03
権利情報
  • http://creativecommons.org/licenses/by-nc-nd/4.0/
DOI
  • 10.1002/2014gl061574
公開者
American Geophysical Union (AGU)

この論文をさがす

説明

<jats:title>Abstract</jats:title><jats:p>Along the continental margins, rivers and submarine groundwater supply nutrients, trace elements, and radionuclides to the coastal ocean, supporting coastal ecosystems and, increasingly, causing harmful algal blooms and eutrophication. While the global magnitude of gauged riverine water discharge is well known, the magnitude of submarine groundwater discharge (SGD) is poorly constrained. Using an inverse model combined with a global compilation of <jats:sup>228</jats:sup>Ra observations, we show that the SGD integrated over the Atlantic and Indo‐Pacific Oceans between 60°S and 70°N is (12 ± 3) × 10<jats:sup>13</jats:sup> m<jats:sup>3</jats:sup> yr<jats:sup>−1</jats:sup>, which is 3 to 4 times greater than the freshwater fluxes into the oceans by rivers. Unlike the rivers, where more than half of the total flux is discharged into the Atlantic, about 70% of SGD flows into the Indo‐Pacific Oceans. We suggest that SGD is the dominant pathway for dissolved terrestrial materials to the global ocean, and this necessitates revisions for the budgets of chemical elements including carbon.</jats:p>

収録刊行物

被引用文献 (12)*注記

もっと見る

問題の指摘

ページトップへ