%NAME: agugrl.sty
% For American Geophysical Union
% Geophysical Research Letters
%
% This style option is designed to work with the article document
% style of LaTeX version 2.09.  Use
% \documentstyle[agugrl]{article}
%
% Notes: if your output device is not at least 300dpi AGU will
% probably reject your paper.  AGU requires 12pt type.
%
% The rules here are from "Specifications for typeset GRL papers" 5/85.

% 09 Jul 87

% Copyright (c) 1987 by Stephen Gildea
% Permission to copy all or part of this work is granted, provided
% that the copies are not made or distributed for resale, and that
% the copyright notice and this notice are retained.
% 
% THIS WORK IS PROVIDED ON AN "AS IS" BASIS.  THE AUTHOR PROVIDES NO
% WARRANTY WHATSOEVER, EITHER EXPRESS OR IMPLIED, REGARDING THE WORK,
% INCLUDING WARRANTIES WITH RESPECT TO ITS MERCHANTABILITY OR FITNESS
% FOR ANY PARTICULAR PURPOSE.

% If you make any improvements, I'd like to hear about them.

% Stephen Gildea
% MIT Earth Resources Lab
% Cambridge, Mass. 02139
% mit-erl!gildea
% gildea@erl.mit.edu

\oddsidemargin 1.1875in		%set left margin to 2 3/16"
\textwidth 4.125in		%or 25 picas or 10.4 cm

% With such a short line width, line breaking is going to be a
% problem, so give TeX a break:
\sloppy

\textheight 8.5in

\topmargin 0pt
\footheight 0pt
\footskip 0pt

\parindent 1em
\parskip 0in

\def\@normalsize{\@setsize\normalsize{14pt}\xiipt\@xiipt
\abovedisplayskip 14pt \belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 14pt \belowdisplayshortskip \abovedisplayshortskip}

\def\footnotesize{\@setsize\footnotesize{12pt}\xpt\@xpt}

% Set up page style
\def\ps@agu{\def\@oddhead{\hss\hbox to 7in{\rm\hfil\thepage}\hss}
  \let\@evenhead\@oddhead
  \def\@oddfoot{}\def\@evenfoot{}}

\ps@agu

%% Bibliography %%


\def\thebibliography#1{\section*{References\markboth
 {REFERENCES}{REFERENCES}}\list
 %% default is no labels, for those not using \cite or BibTeX
 {}{\settowidth\labelwidth{[#1]}\leftmargin\labelwidth
 \advance\leftmargin\labelsep
 \usecounter{enumi}\@bibsetup}
 \def\newblock{\hskip .11em plus .33em minus -.07em}
 \sloppy
 \sfcode`\.=1000\relax}

% Don't put the citation in an hbox.
\def\@citex[#1]#2{\if@filesw\immediate\write\@auxout{\string\citation{#2}}\fi
  \def\@citea{}\@cite{\@for\@citeb:=#2\do
    {\@citea\def\@citea{\@citesep}\@ifundefined
       {b@\@citeb}{{\bf ?}\@warning
       {Citation `\@citeb' on page \thepage \space undefined}}%
{\csname b@\@citeb\endcsname}}}{#1}}

% Use a semicolon instead of a comma between multiple citations.
\def\@citesep{; }

% square brackets instead of the round parens that most nat. sci.
% publications use.
\def\@cite#1#2{[{#1\if@tempswa , #2\fi}]}
 
% Labels should not be printed in References
\def\@biblabel#1{\hfill}

% undent first line of a reference by using negative \itemindent.
% set \itemsep and \parsep to 0pt so there is no space between items.
\def\@bibsetup{\itemindent=-\leftmargin \itemsep=0pt \parsep=0pt}

%% Titles %%

% Use \thispagestyle{empty}
\def\maketitle{\par
 \begingroup
 \def\@makefnmark{\hbox 
 to 0pt{$^{\@thefnmark}$\hss}} 
 \if@twocolumn 
 \twocolumn[\@maketitle] 
 \else \newpage
 \global\@topnum\z@ \@maketitle \fi\thispagestyle{empty}\@thanks
 \endgroup
 \setcounter{footnote}{0}
 \let\maketitle\relax
 \let\@maketitle\relax
 \gdef\@thanks{}\gdef\@address{}\gdef\@author{}\gdef\@title{}\let\thanks\relax}

\def\@maketitle{\newpage
 \@titleline{\@title}
 \unvbox\@titlebox}

\def\title#1{\gdef\@title{\uppercase{#1}}}

% We have to accumulate the author info into a box because \author
% and \address may be called more than once if there are multiple
% authors with different addresses.
\newbox\@titlebox

\def\author#1{\setbox\@titlebox\vbox{\unvbox\@titlebox
  {\@titleline{#1}}}}

\def\address#1{\setbox\@titlebox\vbox{\unvbox\@titlebox
  {\@titleline{#1}}}}

% AGU allows the title and author to be 8 1/2 in wide, but obviously
% that will not fit on our paper.
\def\@titleline#1{\hbox to \hsize{\hss
  \vbox{\hsize 7.9in\noindent\centering #1}\hss}\vskip 14pt}


% The abstract environment
\def\abstract{\vskip 14pt \subsubsection{Abstract}}
\def\endabstract{\par}

\def\acknowledgments{\vskip 14pt \subsubsection{Acknowledgments}}
\def\acknowledgements{\vskip 14pt \subsubsection{Acknowledgements}}
\def\endacknowledgments{\par}
\def\endacknowledgements{\par}

% Headings:
%   for Grade 1 heading use \section
%   for Grade 2 heading use \subsection
%   for Grade 3 heading use \subsubsection
\setcounter{secnumdepth}{0}
\def\section{\@startsection {section}{1}{\z@}{14pt}{14pt}{\centering}}
\def\subsection{\@startsection {subsection}{2}{\z@}{14pt}{14pt}{\it}}
\def\subsubsection#1{\par{\it #1.}}

% Put the boxes in the margin that show the first reference
% to a figure or table
\def\marginboxed#1{\marginpar{{\Large\fbox{#1}}}}

% A modification of plain TeX to make the rule shorter.
\def\footnoterule{\kern-3\p@
  \hrule width 4pc \kern 2.6\p@} % the \hrule is .4pt high

\def\authorrule{\footnoterule \vskip 2pt \relax}

% the addresses environment is used at the end of the paper to
% list the authors' full addresses.  Put a blank line between addresses.
\def\addresses{\vskip-\lastskip\leavevmode\authorrule}
\def\endaddresses{\par}

% the received environment for the Received, Revised, Accepted lines
\def\received{\addvspace{\baselineskip}\parindent=0pt}
\def\endreceived{\par\addvspace{\baselineskip}}

\def\copyrightnotice#1{\addvspace{\baselineskip}\noindent#1\par
  \addvspace{2ex}}

\def\papernumber#1{\noindent Paper number #1}

\def\runninghead#1{\runningheads{3}{#1}}

% \runningheads prints #1 copies of the text in #2
\newcount\@rhcnt
\def\runningheads#1#2{\par\addvspace{2\baselineskip}\@rhcnt=0
  \loop\ifnum\@rhcnt<#1
     \advance \@rhcnt by 1
     \rhead{#2}
  \repeat
  \par\vskip 6pt}
\def\rhead#1{\par\noindent\vskip 6pt\hbox to 30pc{#1\hfil}}

% put this before the figure captions
\def\captions{\par\parskip 14pt \parindent 0pt}
\def\endcaptions{\par}

% Put each table in a separate table environment.
% "tables: type each on a separate page"
\def\table{\newpage\par \vskip 14pt \parskip 0pt \parindent 1em}
\def\endtable{\par}

% If figure captions or tables need to be a specific width,
% put them inside the wider environment.  The argument is the
% width, ala minipage.  The advantage over minipage is that the
% requested width can be wider than \textwidth

\def\wider#1{\par\noindent\hbox to \textwidth\bgroup
  \begin{minipage}{#1}}
\def\endwider{\end{minipage}\hss\egroup\par}

% Unfortunately, the default \@arrayparboxrestore clobbers \parindent.
% This version doesn't.
\def\@arrayparboxrestore{\let\par\@@par
    \let\-\@dischyph
    \let\'\@acci \let\`\@accii \let\=\@acciii
    \everypar{}\linewidth\hsize 
    \@totalleftmargin\z@ \leftskip\z@ \rightskip\z@ \@rightskip\z@ 
    \parfillskip\@flushglue \lineskip\normallineskip 
    \baselineskip\normalbaselineskip\sloppy}

% The expandedtablar environment is like tabular, but always produces
% tables that are as wide as the current text length.  It does NOT
% take the optional [] argument that tabular does.

% This is \@tabular and \@array collapsed.
\def\expandedtabular#1{\leavevmode \hbox \bgroup $\let\@acol\@tabacol 
   \let\@classz\@tabclassz
   \let\@classiv\@tabclassiv \let\\\@tabularcr
     \setbox\@arstrutbox=\hbox{\vrule 
     height\arraystretch \ht\strutbox
     depth\arraystretch \dp\strutbox
     width\z@}\@mkpream{#1}\edef\@preamble{\halign to \textwidth
\bgroup \tabskip 0pt plus 1fil \@arstrut \@preamble \tabskip\z@ \cr}%
\let\@startpbox\@@startpbox \let\@endpbox\@@endpbox
  \vcenter
  \bgroup \let\par\relax
  \let\@sharp##\let\protect\relax \lineskip\z@\baselineskip\z@\@preamble}

\def\endexpandedtabular{\crcr\egroup\egroup $\egroup}