\title{
On the use of finite volume methods for atmospheric advection of trace
species: I. Test of various formulations in a General Circulation Model
\author{\sc Fr�d�ric Hourdin\\
{\em Laboratoire de M\'et\'eorogogie dynamique du CNRS, Paris, France}\\
{\sc Alexandre Armengaud}\\
{\em Laboratoire de Glaciologie et G\'eophysique de l'Environnement}\\
{\em Universit\'e de Grenoble, France}}
\date{Accepted for publication in {\em Monthly Weather Review}, \today}
}
