SAND network database - DATA USAGE GUIDELINES Notice to users: The public domain data you are about to download are contributed by Martin Aube et al. from Groupe de recherche et d'applications en physique au CEGEP de Sherbrooke (GRAPHYCS). The Principal Investigator (PI) , is responsible for deployment, maintenance and data collection. The PI has priority use of the data collected. The PI is entitled to be informed of any other use of that data. PI contact information is Martin Aube Departement de Physique CEGEP de Sherbrooke 475 rue Parc Sherbrooke, QC CANADA, J1E 4K1 (819) 564-6350 #4146 (819) 564-1579 (FAX) email: martin.aube@cegepsherbrooke.qc.ca . Recommended guidelines for data use and publication: Although journal paper authorship and acknowledgement is the domain of the senior author and no policy is universally applicable, the contributors ask that every practical attempt be made to honor the following general guidelines. Using Sky spectral radiance database: Please consult with the PI of the data to be used. Publishing a 'few' data: Please consider authorship for the PI and/or the following acknowledgement: We thank the (Project/PI) for its effort in establishing and maintaining the Sky spectral radiance database. Publishing 'many' data: A general acknowledgement is typically sufficient and may read: We thank the (PI investigator) and technical staff for establishing and maintaining the Sky spectral radiance database used in this investigation. However if the Sky spectral radiance database is a principal component of the paper then co-authorship to PI should be offered.