\documentclass[10pt]{article}

\usepackage{fullpage}
\usepackage{setspace}
\usepackage{parskip}
\usepackage{titlesec}
\usepackage[section]{placeins}
\usepackage{xcolor}
\usepackage{breakcites}
\usepackage{lineno}
\usepackage{hyphenat}





\PassOptionsToPackage{hyphens}{url}
\usepackage[colorlinks = true,
            linkcolor = blue,
            urlcolor  = blue,
            citecolor = blue,
            anchorcolor = blue]{hyperref}
\usepackage{etoolbox}
\makeatletter
\patchcmd\@combinedblfloats{\box\@outputbox}{\unvbox\@outputbox}{}{%
  \errmessage{\noexpand\@combinedblfloats could not be patched}%
}%
\makeatother


\usepackage{natbib}




\renewenvironment{abstract}
  {{\bfseries\noindent{\abstractname}\par\nobreak}\footnotesize}
  {\bigskip}

\titlespacing{\section}{0pt}{*3}{*1}
\titlespacing{\subsection}{0pt}{*2}{*0.5}
\titlespacing{\subsubsection}{0pt}{*1.5}{0pt}


\usepackage{authblk}


\usepackage{graphicx}
\usepackage[space]{grffile}
\usepackage{latexsym}
\usepackage{textcomp}
\usepackage{longtable}
\usepackage{tabulary}
\usepackage{booktabs,array,multirow}
\usepackage{amsfonts,amsmath,amssymb}
\providecommand\citet{\cite}
\providecommand\citep{\cite}
\providecommand\citealt{\cite}
% You can conditionalize code for latexml or normal latex using this.
\newif\iflatexml\latexmlfalse
\providecommand{\tightlist}{\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}%

\AtBeginDocument{\DeclareGraphicsExtensions{.pdf,.PDF,.eps,.EPS,.png,.PNG,.tif,.TIF,.jpg,.JPG,.jpeg,.JPEG}}

\usepackage[utf8]{inputenc}
\usepackage[ngerman,english]{babel}



\usepackage{float}








\begin{document}

\title{Glacial cycle ice-sheet evolution controlled by oceanbed properties}



\author[1]{Clemens Schannwell}%
\author[2]{Reinhard Drews}%
\author[3]{Todd Ehlers}%
\author[4]{Olaf Eisen}%
\author[5]{Christoph Mayer}%
\author[6]{Mika Malinen}%
\author[7]{Emma Clare Smith}%
\author[8]{Hannes Eisermann}%
\affil[1]{Max Planck Institute for Meteorology}%
\affil[2]{Department of Geosciences, University of Tübingen}%
\affil[3]{University of Tubingen}%
\affil[4]{Alfred Wegener Institute Helmholtz Center for Polar and Marine Research}%
\affil[5]{Bavarian Academy of Sciences and Humanity}%
\affil[6]{CSC-IT Center for Science Ltd.}%
\affil[7]{Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung}%
\affil[8]{Alfred Wegener Institute for Polar and Marine Research}%


\vspace{-1em}



  
  \date{May 19, 2024}


\begingroup
\let\center\flushleft
\let\endcenter\endflushleft
\maketitle
\endgroup





\selectlanguage{english}
\begin{abstract}
Improving constraints on the basal ice/bed properties is essential for
accurate prediction of ice-sheet grounding-line positions and stability.
Furthermore, the history of grounding-line positions since the Last
Glacial Maximum has proven challenging to understand due to
uncertainties in bed conditions. Here we use a 3D full-Stokes ice-sheet
model to investigate the effect of differing ocean bed properties on
ice-sheet advance and retreat over a glacial cycle. We do this for the
Ekstr\selectlanguage{ngerman}öm Ice Shelf catchment, East Antarctica. We find that predicted ice
volumes differ by \textgreater{}50\%, resulting in two entirely
different catchment geometries triggered exclusively by variable ocean
bed properties. Grounding-line positions between simulations differ by
\textgreater{}100\% (49 km), show significant hysteresis, and migrate
non-steadily with long quiescent phases disrupted by leaps of rapid
migration. These results highlight that constraints for both bathymetry
and substrate geologic properties are urgently needed for predicting
ice-sheet evolution and sea-level change.%
\end{abstract}\selectlanguage{ngerman}%



\sloppy




\selectlanguage{english}
\FloatBarrier
\end{document}

