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RISAtmospheric Dispersion and Tracer Ventilation in a Deep Mountain Valley
Publisher: American Meteorological Society
Abstract: During September and October 1984, a major meteorological and tracer study was conducted in Colorado's Brush Creek valley. The characteristics of atmospheric dispersion during the nighttime and morning transition periods ...
Nocturnal Low-Level Jet in a Mountain Basin Complex. Part II: Transport and Diffusion of Tracer under Stable Conditions
Publisher: American Meteorological Society
Abstract: Differences in nighttime transport and diffusion of sulfur hexafluoride (SF6) tracer in an urban complex-terrain setting (Salt Lake City, Utah) are investigated using surface and Doppler lidar wind data and large-scale ...
Vertical Tracer Concentration Profiles Measured during the Joint Urban 2003 Dispersion Study
Publisher: American Meteorological Society
Abstract: An atmospheric tracer dispersion study known as Joint Urban 2003 was conducted in Oklahoma City, Oklahoma, during July of 2003. As part of this field program, vertical concentration profiles were measured at approximately ...
Wintertime Dispersion in a Mountainous Basin at Roanoke, Virginia: Tracer Study
Publisher: American Meteorological Society
Abstract: During January 1989, five nighttime SF6 tracer experiments were conducted in Roanoke, Virginia. The experiments were designed to help identify and understand the dispersion characteristics of a basin atmosphere during ...
Dispersion of Perfluorocarbon Tracers within the Salt Lake Valley during VTMX 2000
Publisher: American Meteorological Society
Abstract: Six perfluorocarbon tracer experiments were conducted in Salt Lake City, Utah, during October 2000 as part of the Vertical Transport and Mixing (VTMX) field campaign. Four tracers were released at different sites to obtain ...
Plume Dispersion Anomalies in a Nocturnal Urban Boundary Layer in Complex Terrain
Publisher: American Meteorological Society
Abstract: The URBAN 2000 experiments were conducted in the complex urban and topographical terrain in Salt Lake City, Utah, in stable nighttime conditions. Unexpected plume dispersion often arose because of the interaction of complex ...
Deep Valley Radiation and Surface Energy Budget Microclimates. Part II: Energy Budget
Publisher: American Meteorological Society
Abstract: Surface energy budget measurements were made concurrently at five sites located on the valley floor, sidewalls and ridgetop of Colorado's 650-m deep Brush Creek Valley (39°32?N, 108°24?W) on the nearly clear day of 25 ...
Deep Valley Radiation and Surface Energy Budget Microclimates. Part I: Radiation
Publisher: American Meteorological Society
Abstract: Solar and longwave radiation data are presented for five sites in Colorado's 650 m deep semiarid Brush Creek Valley (39°32?N, 108°24?W) during September 1984. During the sunlit period of a nearly clear day, individual sites ...
VALDRIFT—A Valley Atmospheric Dispersion Model
Publisher: American Meteorological Society
Abstract: VALDRIFT (valley drift) is a valley atmospheric transport, diffusion, and deposition model. The model is phenomenological?that is, the dominant meteorological processes governing the behavior of the valley atmosphere are ...
An Evaluation of Two NEXRAD Wind Retrieval Methodologies and Their Use in Atmospheric Dispersion Models
Publisher: American Meteorological Society
Abstract: Two entirely different methods for retrieving 3D fields of horizontal winds from Next Generation Weather Radar (NEXRAD) radial velocities have been evaluated using radar wind profiler measurements to determine whether ...