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RISThe Thermally Driven Cross-Basin Circulation in Idealized Basins under Varying Wind Conditions
Publisher: American Meteorological Society
Abstract: he Weather Research and Forecasting model is used to perform large-eddy simulations of thermally driven cross-basin winds in idealized, closed basins. A spatially and temporally varying heat flux is prescribed at the surface ...
Flow Regimes over a Basin Induced by Upstream Katabatic Flows—An Idealized Modeling Study
Publisher: American Meteorological Society
Abstract: dealized two-dimensional model simulations are performed to study the frequent nocturnal occurrence of downslope-windstorm-type flows in Arizona?s Meteor Crater. The model topography is a simplified representation of the ...
Diurnal Cycle of Thermally Driven Cross-Basin Winds in Arizona’s Meteor Crater
Publisher: American Meteorological Society
Abstract: Cross-basin winds produced by asymmetric insolation of the crater sidewalls occur in Arizona?s Meteor Crater on days with weak background winds. The diurnal cycle of the cross-basin winds is analyzed together with radiation, ...
A Mass Flux Model of Nocturnal Cold-Air Intrusions into a Closed Basin
Publisher: American Meteorological Society
Abstract: bservations made during the Meteor Crater Experiment (METCRAX) field campaign revealed unexpected nighttime cooling characteristics in Arizona?s Meteor Crater. Unlike in other natural closed basins, a near-isothermal ...
Nocturnal Cold-Air Intrusions into a Closed Basin: Observational Evidence and Conceptual Model
Publisher: American Meteorological Society
Abstract: Observations are analyzed to explain an unusual feature of the nighttime atmospheric structure inside Arizona?s idealized, basin-shaped Meteor Crater. The upper 75%?80% of the crater?s atmosphere, which overlies an intense ...
Warm-Air Intrusions in Arizona’s Meteor Crater
Publisher: American Meteorological Society
Abstract: pisodic nighttime intrusions of warm air, accompanied by strong winds, enter the enclosed near-circular Meteor Crater basin on clear, synoptically undisturbed nights. Data analysis is used to document these events and to ...
The Upslope–Downslope Flow Transition on a Basin Sidewall
Publisher: American Meteorological Society
Abstract: he late afternoon upslope?downslope flow transition on the west inner sidewall of Arizona?s Meteor Crater, visualized by photographs of smoke dispersion, is investigated for 20 October 2006 using surface radiative and ...
Katabatically Driven Cold Air Intrusions into a Basin Atmosphere
Publisher: American Meteorological Society
Abstract: AbstractThe interactions between a katabatic flow on a plain and a circular basin cut into the plain and surrounded by an elevated rim were examined during a 5-h steady-state period during the Second Meteor Crater Experiment ...
CROSSINN - a field experiment to study the three-dimensional flow structure in the Inn Valley, Austria
Publisher: American Meteorological Society
Abstract: The CROSSINN field experiment investigates the three-dimensional structure of thermally and dynamically driven flows and their impact on the boundary layer in a large Alpine valley using comprehensive state-of-the-art ...
A Case Study of the Nocturnal Boundary Layer Evolution on a Slope at the Foot of a Desert Mountain
Publisher: American Meteorological Society
Abstract: bservations 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 ...