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RISA Diagnosis of Alpine Lee Cyclogenesis
Publisher: American Meteorological Society
Abstract: A diagnostic analysis of two cases of lee cyclogenesis in the Alps region is presented. Data used consisted of routinely available rawinsonde, satellite and aircraft data. The analysis employed a three-stage variational ...
Application of the Inequality Constraint in Adjustment of Superadiabatic Layers
Publisher: American Meteorological Society
Abstract: Within variational calculus there are problems which employ inequalities as constraints. Adjustment of absolutely unstable atmospheric layers is a suitable problem on which to apply an appropriate solution technique. The ...
Diagnosis and Optimization of Ensemble Forecasts
Publisher: American Meteorological Society
Abstract: In the current study, a technique that offers a way to evaluate ensemble forecast uncertainties produced either by initial conditions or different model versions, or both, is presented. The technique consists of first ...
Validation of a Composite Convective Index as Defined by a Real-Time Local Analysis System
Publisher: American Meteorological Society
Abstract: Advances in remote sensing from earth- and spaceborne systems, expanded in situ observation networks, and increased low-cost computer capability will allow an unprecedented view of mesoscale weather systems from the local ...
Short-Range Precipitation Forecasts from Time-Lagged Multimodel Ensembles during the HMT-West-2006 Campaign
Publisher: American Meteorological Society
Abstract: High-resolution (3 km) time-lagged (initialized every 3 h) multimodel ensembles were produced in support of the Hydrometeorological Testbed (HMT)-West-2006 campaign in northern California, covering the American River basin ...
Forecasting for a Large Field Program: STORM-FEST
Publisher: American Meteorological Society
Abstract: Stormscale Operational and Research Meteorology-Fronts Experimental Systems Test (STORM-FEST) was held from 1 February to 15 March 1992 in the central United States as a preliminary field systems test for an eventual ...
Local-Domain Mesoscale Analysis and Forecast Model Support for the 1996 Centennial Olympic Games
Publisher: American Meteorological Society
Abstract: The National Weather Service (NWS) developed the Olympic Weather Support System (OWSS) to provide specialized operational weather support for the 1996 Centennial Olympic Games in Atlanta. Operational implementation of the ...
The Local Analysis and Prediction System (LAPS): Analyses of Clouds, Precipitation, and Temperature
Publisher: American Meteorological Society
Abstract: The Local Analysis and Prediction System combines numerous data sources into a set of analyses and forecasts on a 10-km grid with high temporal resolution. To arrive at an analysis of cloud cover, several input analyses ...
Evaluation of Short-Range Quantitative Precipitation Forecasts from a Time-Lagged Multimodel Ensemble
Publisher: American Meteorological Society
Abstract: Short-range quantitative precipitation forecasts (QPFs) and probabilistic QPFs (PQPFs) are investigated for a time-lagged multimodel ensemble forecast system. One of the advantages of such an ensemble forecast system is ...
Winter Icing and Storms Project (WISP)
Publisher: American Meteorological Society
Abstract: Field studies in support of the Winter Icing and Storms Project (WISP) were conducted in the Colorado Front Range area from 1 February to 31 March 1990(WISP90) and from 15 January to 5 April 1991 (WISP91). The main goals ...