Articles | Volume 2, issue 3
https://doi.org/10.5194/wcd-2-819-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-2-819-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
31 Aug 2021
Research article |
| 31 Aug 2021
| 31 Aug 2021
Oceanic moisture sources contributing to wintertime Euro-Atlantic blocking
Ayako Yamamoto
CORRESPONDING AUTHOR
Department of Ocean Sciences, Tokyo University of Marine Science and Technology, Tokyo, Japan
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
Masami Nonaka
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Patrick Martineau
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
Akira Yamazaki
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Young-Oh Kwon
Woods Hole Oceanographic Institution, Woods Hole, MA, USA
Hisashi Nakamura
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
Bunmei Taguchi
Faculty of Sustainable Design, University of Toyama, Toyama, Japan
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Short summary
While the key role of moist processes in blocking has recently been highlighted, their moisture sources remain unknown. Here, we investigate moisture sources for wintertime Euro-Atlantic blocks using a Lagrangian method. We show that the Gulf Stream, Kuroshio, and their extensions, along with the northeast of Hawaii, act as the primary moisture sources and springboards for particle ascent. We find that the evolution of the particle properties is sensitive to the moisture sources.
While the key role of moist processes in blocking has recently been highlighted, their moisture...
