ASCOT data from the 1980 field measurement program in the Anderson Creek Valley, California. [ASCOT Program]

Conference · Wed Nov 07 04:00:00 EST 1984

OSTI ID:5990909

Dickerson, M H; Gudiksen, P H

With the ASCOT program's initial focus being on the study of transport and dispersion of materials injected in or near nocturnal drainage flows, a series of exploratory field experiments of limited scope were conducted during July 1979 in the Anderson Creek valley of The Geysers geothermal area in northern California. The analyses of the results provided insight into the structure of the drainage flows and permitted the design of a more comprehensive series of experiments that were conducted during September 1980 in the same valley. The experimental plan consisted of five separate and identical experiments. Each experiment included multiple tracer releases that were coordinated with a series of meteorological measurements. The general objectives of these experiments were: evaluate the entire nocturnal drainage cycle-initiation, perpetuation, and breakdown; define the regional scale flows (30 to 50 km range) as well as the flows over the ridges surrounding the Anderson Creek Valley to permit an evaluation of the influence of these flows on the nocturnal drainage flows within the valley; define, at least in a preliminary manner, the effect of surface roughness and forest canopy on the drainage flows; define the temporal and spatial characteristics of the drainage flows within the valley; define the evolution of drainage flows within the lower portions of the valley and subsequent outflow of this air into the Middletown area. This should include a characterization of the three- dimensional structure of this pool and an evaluation of the mechanisms responsible for draining the pool; evaluate the exchange of mass between the nocturnal drainage flows and the over-lying transition layer.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5990909
• Report Number(s): UCRL-91762; CONF-8410165-7; ON: DE85006147
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
COMPLEX TERRAIN
CURRENTS
DATA
DIFFUSION
EARTH ATMOSPHERE
EXPERIMENTAL DATA
FLUID FLOW
FORESTS
GEOTHERMAL FIELDS
GEYSERS GEOTHERMAL FIELD
Geothermal Legacy
INFORMATION
ISOTOPE APPLICATIONS
MONITORING
NOCTURNAL VARIATIONS
NUMERICAL DATA
TRACER TECHNIQUES
VARIATIONS
WIND