= How to use the new driver?

Author: A. Ducharne\\
Last revision: 2020/06/01, A. Ducharne 

== Question by Agnès Ducharne to Jan Polcher on 2020/06/01

Comment fait-on pour utiliser le nouveau driver dans le trunk SVP ?
Il me semble que les configs par défaut utilisent encore l'ancien driver, et du coup, quels fichiers faut-il changer et comment ? 

== Answer by Jan Polcher 

A dedicated configuration, called [https://forge.ipsl.jussieu.fr/orchidee/browser/tags/ORCHIDEE_2_1/ORCHIDEE_OL/OOL_SEC_STO_FG3nd OOL_SEC_STO_FG3nd], has been committed in the trunk in 2019, starting at tag2.1.

The main changes are the executable name for the driver in config.card (orchideedriver instead of orchidee_ol), and that 3 consecutive atmospheric files need to be read for each year (see FORCING_FILE in PARAM/run.def and COMP/orchidee_ol.card) 

== Additional info on the new and old driver

Read [wiki:Documentation/Forcings here] on the two drivers, their comparaison, and the available atmospheric datasets.