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\begin{document}

\title{Accelerated ocean acidification in the Tsugaru Strait by an intensified
Tsugaru Warm Current}



\author[1]{Masahide Wakita}%
\author[1]{Ken'ichi Sasaki}%
\author[1]{Akira Nagano}%
\author[2]{Hiroto Abe}%
\author[3]{Takahiro Tanaka}%
\author[4]{Kosuke Nagano}%
\author[1]{Koji Sugie}%
\author[5]{Katsunori Kimoto}%
\author[6]{Takeshi Okunishi}%
\author[7]{Makoto Takada}%
\author[7]{Jun Yoshino}%
\author[1]{Shuichi Watanabe}%
\affil[1]{Japan Agency for Marine-Earth Science and Technology}%
\affil[2]{Hokkaido University}%
\affil[3]{Tohoku National Fisheries Research Institute}%
\affil[4]{Aomori Prefectural Industrial Technology Research Center}%
\affil[5]{Research Institute for Global Change, Japan Agency for Marine-Earth}%
\affil[6]{National Research Institute of Fisheries Science}%
\affil[7]{Tohoku Environmental Science Services Corporation}%


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  \date{June 14, 2024}


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\begin{abstract}
The oceanic uptake of anthropogenic CO\textsubscript{2} has resulted in
acidification in surface and subsurface waters throughout the global
ocean. We initiated acidification monitoring in the eastern part of the
Tsugaru Strait, which connects the Sea of Japan and the North Pacific.
Annual mean pH and CaCO\textsubscript{3} saturation state decreased
considerably throughout all depths at rates of 0.0030-0.0051
yr\textsuperscript{-1} and 0.017-0.036 yr\textsuperscript{-1} during
2012-2019, respectively. These rates of decrease are faster than those
caused by increasing atmospheric CO\textsubscript{2}, and faster than
those observed during previous research in the Sea of Japan and the
North Pacific. The accelerated acidification is attributed to enhanced
increase in dissolved inorganic carbon caused by elevated mixing of the
upper and deeper waters from the Sea of Japan at the western part of the
strait by the strengthening of the Tsugaru Warm Current.%
\end{abstract}%



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\textbf{Hosted file}

\verb`agusupporting-information_oa_twc_mw.docx`  available at \url{https://authorea.com/users/542212/articles/603284-accelerated-ocean-acidification-in-the-tsugaru-strait-by-an-intensified-tsugaru-warm-current}

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