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A field study of orographic precipitation anomalies during high velocity winds using an aerofoil rain gauge

journal contribution
posted on 2023-05-16, 09:52 authored by Morris, CJG, Manuel NunezManuel Nunez, Montes, JS
This study was prompted by a need to explain an anomaly in the apparent precipitation distribution over a prominent mountain subject to a high velocity westerly airstream. Historical data reveal that the lee receives 58% more precipitation than the summit. A novel rain gauge with a vertically orientated collecting orifice, 3 standard rain gauges and complementary wind data were procured from 3 sites on the mountain to assess the effect of the airstream on the precipitation distribution. The catch efficiency of standard rain gauges decrease after the wind velocity exceeds 2.5 ms -1 Results indicate that the summit actually receives 59% more precipitation than the lee, where a vortex directly affects the precipitation distribution over, and east, of the mountain. © 1995 Springer-Verlag.

History

Publication title

Theoretical and Applied Climatology

Volume

51

Pagination

139-151

ISSN

0177-798X

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

Springer-Verlag Wien

Place of publication

Viena, Austria

Repository Status

  • Restricted

Socio-economic Objectives

Understanding climate change not elsewhere classified

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