The Development and Structure of Nocturnal Slope Winds in a Simple Valley
Abstract
This report describes the results of a project to study the evolution and structure of nocturnal slope flows that form on the sidewalls of a simple valley. The valley chosen for the project was located in southeastern Washington. The measurement sites were located in a straight 1.5-km-long section of the valley, with the ridgetops approximately 225 m above the valley floor. The east sidewall was quite smooth, had little vegetation other than grasses, and had a nearly constant 23-degree slope angle. The west sidewall was more irregular, steeper, and had more vegetation. Towers were erected on both sidewalls, and wind and temperature data were collected there on six nights in October of 1986. A Doppler sodar measured winds throughout the depth of the valley and above, and a tethered balloon was used to obtain temperature measurements and additional wind data in the valley during the first few hours after sunset.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1988
- Accession Number
- ADA203427
Entities
People
- C. D. Whiteman
- J. C. Doran
- T. W. Horst