Jump model

From Glossary of Meteorology



jump model

An idealization for the atmospheric boundary layer that assumes uniform (well mixed) values with height within the boundary layer, capped by a discontinuity (or jump) at the top of the boundary layer.

Another name for this approach is a slab model because the uniform part of the boundary layer behaves in a similar way to a uniform slab of material. Such jump or step models are reasonable simplifications for the convective boundary layer when vigorous thermals tend to keep the boundary layer well mixed, but are poor idealizations for statically stable and neutral boundary layers.


Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.