A Case Study of the Nocturnal Boundary Layer Evolution on a Slope at the Foot of a Desert Mountain
Manuela Lehner,C. David Whiteman,Sebastian W. Hoch,Derek D. Jensen,Eric R. Pardyjak,Laura S. Leo,Silvana Di Sabatino,Harindra J. S. Fernando +7 more
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In this article, a case study of nocturnal boundary layer development is presented for a night in mid-May when tethered-balloon measurements were taken to supplement other MATERHORN field measurements.Abstract:
Observations were taken on an east-facing sidewall at the foot of a desert mountain that borders a large valley, as part of the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) field program at Dugway Proving Ground in Utah. A case study of nocturnal boundary layer development is presented for a night in mid-May when tethered-balloon measurements were taken to supplement other MATERHORN field measurements. The boundary layer development over the slope could be divided into three distinct phases during this night: 1) The evening transition from daytime upslope/up-valley winds to nighttime downslope winds was governed by the propagation of the shadow front. Because of the combination of complex topography at the site and the solar angle at this time of year, the shadow moved down the sidewall from approximately northwest to southeast, with the flow transition closely following the shadow front. 2) The flow transition was followed by a 3–4-h period of almost steady-state boundary la...read more
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The MATERHORN: Unraveling the Intricacies of Mountain Weather
Harindra J. S. Fernando,Eric R. Pardyjak,S. Di Sabatino,Fotini Katopodes Chow,S. F. J. De Wekker,Sebastian W. Hoch,J. Hacker,J. Hacker,J. Pace,Thomas G. Pratt,Zhaoxia Pu,W. J. Steenburgh,C. D. Whiteman,Yansen Wang,D. Zajic,Ben B. Balsley,R. Dimitrova,G. D. Emmitt,Chad W. Higgins,J. C. R. Hunt,Jason C. Knievel,Dale Lawrence,Yubao Liu,Daniel F. Nadeau,Eliezer Kit,Byron Blomquist,Patrick Conry,R. S. Coppersmith,E. Creegan,M. Felton,Andrey A. Grachev,N. Gunawardena,C. Hang,Christopher M. Hocut,Giap Huynh,Matthew E. Jeglum,Derek D. Jensen,V. Kulandaivelu,Manuela Lehner,Laura S. Leo,Dan Liberzon,Jeffrey D. Massey,K. McEnerney,Sandip Pal,Timothy A. Price,M. Sghiatti,Z. Silver,M. Y. Thompson,H. Zhang,Tamas Zsedrovits +49 more
TL;DR: The Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) Program as discussed by the authors is a research effort that draws the expertise of a multidisciplinary, multi-institutional, and multinational group of researchers.
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