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\begin{document}

\title{Identifying historical climate changes through spatial analogs}



\author[1]{Andrew David King}%
\affil[1]{University of Melbourne}%


\vspace{-1em}



  
  \date{May 24, 2024}


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\selectlanguage{english}
\begin{abstract}
Spatial analogs have previously been used to communicate climate
projections by comparing the future climate of a location with an
analogous recent climate at a different location which is typically
hotter. In this study, spatial climate analogs were computed using
observational data to identify and quantify past changes. A sigma
dissimilarity metric was computed to compare the recent climates of nine
major Australian cities and early 20\textsuperscript{th} century
climate. Evidence of climate shifts is found, particularly in locations,
such as Perth, where precipitation has significantly changed in addition
to the warming trend observed at all cities. Analogs designed to capture
extremes, including a human health-relevant climate analog, were
constructed and these also highlight significant climate shifts. This
work demonstrates the utility of climate analogs for monitoring past
climate changes as well as examining future change. Tailored analogs
could be studied to communicate climate changes relevant to specific
stakeholders.%
\end{abstract}%



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\emph{Geophysical Research Letters}

Supporting Information for

\textbf{Identifying historical climate changes through spatial analogs}

Andrew D. King\textsuperscript{1}

1. ARC Centre of Excellence for Climate Extremes and School of
Geography, Earth and Atmospheric Sciences, University of Melbourne,
Melbourne, Australia.

\textbf{Contents of this file}

Figures S1 to S3\selectlanguage{english}
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\textbf{Figure S1.} As Figure 2 but showing sigma dissimilarity between
the city's climate in 1994-2021/22 and the climate of other locations in
1938-1965/66.\selectlanguage{english}
\begin{figure}[H]
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\includegraphics[width=0.70\columnwidth]{figures/image3/image3}

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\end{figure}

\textbf{Figure S2.} As Figure 2 but showing sigma dissimilarity between
the city's climate in 1994-2021/22 and the climate of other locations in
1966-1993/94.\selectlanguage{english}
\begin{figure}[H]
\begin{center}
\includegraphics[width=0.70\columnwidth]{figures/image4/image4}

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\end{figure}

\textbf{Figure S3.} As Figure 2 but identifying a climate extremes
analog instead.

\textbf{Hosted file}

\verb`essoar.10512595.1.docx`  available at \url{https://authorea.com/users/264908/articles/606001-identifying-historical-climate-changes-through-spatial-analogs}

\selectlanguage{english}
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