Breadcrumb Home Understanding climate concepts Understanding climate concepts Intended as a continuation of the Understanding Climate Science page, this page reviews the climate concepts that are important for understanding climate science. Learn more about the climate science. Consult the page Concepts Weather and climate Physical climate models The physical parameterization of a climate model Climate simulation without model calibration The data driving a regional climate model Validation of climate simulations Climate change Downscaling climate data Reanalysis Initializing a climate simulation Ensembles of climate simulations Glossaire Glossary