Now showing items 1-10 of 14
Numerical study of the evolving convective boundary layer and orographic circulation around the Santa Catalina Mountains in Arizona, Part I. Circulation without deep convection, A
Author(s):Demko, J. C.; Geerts, Bart
The daytime evolution of the thermally forced boundary layer (BL) circulation over an isolated mountain, about 30 km in diameter and 2 km high, is examined by means of numerical simulations validated with data collected ...
Dispersion of Silver Iodide Particles from Ground-Based Generators Over Complex Terrain, Part II. WRF Large-Eddy Simulations Versus Observations, The
Author(s):Xue, Lulin; Chu, Xia; Rasmussen, Roy; Breed, Daniel; Boe, Bruce; Geerts, Bart
A numerical modeling study has been conducted to explore the ability of the Weather Research and Forecasting (WRF) model-based large-eddy simulation (LES) with 100-m grid spacing to reproduce silver iodide (AgI) particle ...
Dryline in Southeast Wyoming. Part II : Airborne In Situ and Raman LiDAR Observations, A
Author(s):Bergmaier, Philip T.; Geerts, Bart; Wang, Zhien; Liu, Bo; Campbell, Patrick C.
Part I of this study describes the mesoscale structure of a dryline over southeastern Wyoming. This dryline formed just east of the western rim of the high plains on 22 June 2010 and became more defined as it progressed ...
Case Study of Radar Observations and WRF LES Simulations of the Impact of Ground-Based Glaciogenic Seeding on Orographic Clouds and Precipitation, Part I. Observations and Model Validations, A
Author(s):Chu, Xia; Xue, Lulin; Geerts, Bart; Rasmussen, Roy; Breed, Daniel
Profiling airborne radar data and accompanying Large Eddy Simulation (LES) modelling are used to examine the impact of ground-based glaciogenic seeding on cloud and precipitation in a shallow stratiform orographic winter ...
2012 Unidata Users Workshop Navigating Earth System Science Data
Author(s):Lazarus, S. M.; Collllins, J. M.; Baxter, M. A.; Hanks, A. C.; Whittaker, T. M.; Tyle, K. R.; Cecelslski, S. F.; Geerts, Bart; Ramamurthy, M. K.
The Unidata Program Center (UPC) worked with the Unidata Users Committee to organize triennial summer workshops on topics of interest to the Unidata community. The 2012 workshop theme, entitled 'navigating Earth system ...
Simulating the IHOP_2002 Fair-Weather CBL with the WRF-ARW-Noah Modeling System. Part I : Surface Fluxes and CBL Structure and Evolution along the Eastern Track
Author(s):Lemone, Margaret A.; Chen, Fei; Tewari, Mukul; Dudhia, Jimy; Geerts, Bart; Miao, Qun; Coulter, Richard L.; Grossman, Robert L.
Fair-weather data from the May-June 2002 International H2O Project (IHOP_2002) 46-km eastern flight track in southeast Kansas are compared to simulations using the advanced research version of the Weather Research and ...
Influence of Soil Moisture on the Planetary Boundary Layer and on Cumulus Convection Over an Isolated Mountainm Part I. Observations, The
Author(s):Zhou, Xin; Geerts, Bart
Data collected around the Santa Catalina Mountains in Arizona as part of the Cumulus Photogrammetric, In Situ and Doppler Observations (CuPIDO) experiment during the 2006 summer monsoon season are used to investigate the ...
Observations of the Evolution of the Nocturnal and Convective Boundary Layers and the Structure of Open-Celled Convection on 14 June 2002
Author(s):Bennett, Lindsay J.; Weckwerth, Tammy M.; Blyth, Alan M.; Geerts, Bart; Miao, Qun; Richardson, Yvette P.
The Boundary Layer Evolution (BLE) missions of the International H2O Project (IHOP_2002) were designed to provide comprehensive observations of the distribution of water vapor in the quiescent boundary layer and its evolution ...
Impact of Ground-Based Glaciogenic Seeding on Orographic Clouds and Precipitation : A Multisensor Case Study, The
Author(s):Pokharel, Binod; Geerts, Bart; Jing, Xiaoqin
A case study is presented from the 2012 AgI Seeding Cloud Impact Investigation, an experiment conducted over the Sierra Madre in southern Wyoming to study the impact of ground-based glaciogenic seeding on precipitation. ...
Heavy Snowfall Produced by Topographically-Induced Winds in the Snake River Plain of Eastern Idaho, Part I. Observational Analysis
Author(s):Andretta, Thomas A.; Geerts, Bart
This study is the first of two papers concerning the dynamics of a heavy snowfall event in the Snake River Plain of eastern Idaho on 26 November 2005. Heavy snowfall occurred along the southern perimeter of the wide (~100 ...