From AMS Glossary
[Also called cold-air damming (CAD).] The piling up, or complete blocking, of cold air approaching the slopes of a mountain barrier.
This produces high pressure along the windward slopes and, when it persists for more than several hours, can also produce a barrier jet.
Rackley, J. A., and J. A. Knox, 2016: A climatology of southern Appalachian cold-air damming. Wea. Forecasting, 31, 419–432, doi:10.1175/WAF-D-15-0049.1.
Term updated 4 May 2017.