tag:blogger.com,1999:blog-6168620747792092240.post9078350679682101986..comments2024-03-27T15:09:59.039-06:00Comments on Wasatch Weather Weenies: Backside MeteorologyJim Shttp://www.blogger.com/profile/15799757451626876963noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6168620747792092240.post-24952058608574580522012-04-16T16:56:31.189-06:002012-04-16T16:56:31.189-06:00In my view, spillover is precipitation that is gen...In my view, spillover is precipitation that is generated upstream and is advected downstream into the lee of the barrier. Situations where precipitation may be generated on the "leeward side" aren't included in this definition. For example, when there is low-level flow reversal causing localized upslope flow in the "lee" of an isolated obstacle, I don't refer to it as spillover. Similarly, the formation of a lee-side convergence zone, such as happens downstream of the Olympics, doesn't count. <br /><br />I first ran across the term in graduate school when I was thinking about precipitation in the New Zealand Alps. Mark Sinclair and compadres were using the term (http://dx.doi.org/10.1175/1520-0450(1997)036%3C0428:FATDAS%3E2.0.CO;2). The definition in the Glossary of Meteorology is similar to mine: "That part of orographic precipitation that is carried over the peaks by the wind so that it reaches the ground on the lee side of the barrier."Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-32979911970194685812012-04-16T16:34:13.192-06:002012-04-16T16:34:13.192-06:00Hey Jim,
I have a quick question on semantics: In...Hey Jim,<br /><br />I have a quick question on semantics: In this post, it sounds like you're describing spillover precipitation to be whatever is advected by the flow into the downstream environment. I always thought of it as precipitation that is actually being generated downstream of the barrier. Is spillover the term for either?JonRhttps://www.blogger.com/profile/17486257474365885398noreply@blogger.com