Please include (something close to) the following acknowledgment in your articles, if you have used data from the PMIP2/MOTIF database:
"We acknowledge the international modeling groups for providing their data for analysis, the Laboratoire des Sciences du Climat et de l'Environnement (LSCE) for collecting and archiving the model data, ...add your customized acknowledgments here... The PMIP2/MOTIF Data Archive is supported by CEA, CNRS, the EU project MOTIF (EVK2-CT-2002-00153) and the Programme National d'Etude de la Dynamique du Climat (PNEDC). The analyses were performed using version mm-dd-yyyy of the database. More information is available on http://pmip2.lsce.ipsl.fr/ and http://motif.lsce.ipsl.fr/."