A098
Mountain Weather and Climate: advances from observations, theories and models

Session ID#: 74622

Session Description:
Mountains exert a distinct role in weather and climate processes on multiple spatiotemporal scales. Extreme events induced by orography such as downslope windstorms can increase wildfire spread rates towards communities, whereas excessive orographic precipitation and snowstorms can increase the risks of floods, debris flows and avalanches. These events are relevant for the hydrological cycle and availability of fresh water.  This session welcomes observational, theoretical and numerical model contributions focusing on all aspects of weather and climate processes over mountains. These contributions cover a variety of topics including, but not limited to, mountain flows and windstorms, mountain winds and fire spread in complex terrain, mountain induced low level jets, mountain waves, boundary layer processes in complex terrain, orographic precipitation, and  interactions between atmospheric rivers and topography. These contributions may address physical and dynamical processes on a wide range of spatiotemporal scales, including high-resolution numerical modeling applied to environments with complex terrain.
Index Terms:

3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3329 Mesoscale meteorology [ATMOSPHERIC PROCESSES]
3354 Precipitation [ATMOSPHERIC PROCESSES]
3390 Wildland fire model [ATMOSPHERIC PROCESSES]


Primary Convener:  Charles Jones, University of California Santa Barbara, Santa Barbara, CA, United States
Conveners:  Gert-Jan Duine, Earth Research Institute, Santa Barbara, United States, Leila V Carvalho, University of California Santa Barbara, Santa Barbara, CA, United States and Craig B Clements, San Jose State University, San Jose, CA, United States
Primary Liaison:  Gert-Jan Duine, Earth Research Institute, Santa Barbara, United States
 
Terrain Influences on Upscale Convective Growth of Orographic Supercells into Mesoscale Convective Systems. (487302)
Jake Mulholand, Champaign, IL, United States, Stephen W Nesbitt, University of Illinois at Urbana Champaign, Department of Atmospheric Sciences, Urbana, IL, United States, Robert Jeffrey Trapp, Dept Earth & Atmospheric Scien, West Lafayette, IN, United States and John M. Peters, Naval Postgraduate School, Monterey, CA, United States
 
Enhancing Access to Observations and Model Output for Mountain Weather Applications (Invited) (496790)
John Horel and Brian Kenneth Blaylock, University of Utah, Salt Lake City, UT, United States
 
The influence of mountain waves on the slope of the atmospheric kinetic-energy spectrum in simulations of idealized mid-latitude cyclones (Invited) (496838)
Dale R Durran, University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States and Maximo Menchaca, Vaisala, Seattle, WA, United States
 
Climatology of Sundowner winds in coastal Santa Barbara, California, USA (498068)
Charles Jones1, Leila Carvalho2, Gert-Jan Duine3 and Katelyn Zigner1, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)University of California, Santa Barbara, Santa Barbara, CA, United States, (3)Earth Research Institute, Santa Barbara, United States
 
An orographic-drag parametrization scheme including orographic anisotropy for all flow directions (498124)
Jinbo Xie, Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, Zhenghui Xie, LASG, Institute of Atmospheric Physics,Chinese Academy of Sciences, Beijing, China, Minghua Zhang, SUNY Stony Brook, Stony Brook, NY, United States and Hailong Liu, State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences, Beijing, 100029, China, Beijing, China
 
Factors Affecting the Inland and Orographic Enhancement of Sea-Effect Snowfall in the Hokuriku Region of Japan (503670)
Peter Veals, University of Utah, Salt Lake City, UT, United States, William J Steenburgh, University of Utah, Atmospheric Sciences, Salt Lake City, UT, United States, Sento Nakai, Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Resilience, Nagaoka, Japan and Satoru Yamaguchi, Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Prevention, Nagaoka, Japan
 
Multivariate Sensitivity Analysis of Orographic Precipitation Within an Idealized Atmospheric River Environment (510356)
Annareli Morales1, Derek J Posselt1 and Hugh Morrison2, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)NCAR, MMM Laboratory, Boulder, CO, United States
 
Numerical Simulations of Orographic Effects on Tropical Easterly Jet and Indian Summer Monsoon (515549)
Popat Salunke, Indian Institute of Technology Delhi, Centre for Atmospheric Sciences, New Delhi, India and Saroj K. Mishra, Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi, India
 
On the diurnal development of Sundowner winds in coastal Santa Barbara, CA (559458)
Gert-Jan Duine1, Leila V Carvalho2 and Charles Jones2, (1)Earth Research Institute, Santa Barbara, United States, (2)University of California Santa Barbara, Santa Barbara, CA, United States
 
The Role of the Marine Boundary Layer in the cycle of downslope winds in Coastal Santa Barbara. (562448)
Leila Carvalho1, Gert-Jan Duine2, Charles Jones3 and Katelyn Zigner3, (1)University of California, Santa Barbara, Santa Barbara, CA, United States, (2)Earth Research Institute, Santa Barbara, United States, (3)University of California Santa Barbara, Santa Barbara, CA, United States
 
Predictability of Orographic Flow and Rainfall in the Korean Integrated Model System (569283)
Seung-Bu Park, KIAPS Korea Insititute of Atmospheric Prediction Systems, Seoul, South Korea, Tae-Jin Oh, Korea Institute of Atmospheric Prediction Systems, Seoul, Korea, Republic of (South) and Kyung-Hee Seol, KIAPS Korea Insititute of Atmospheric Prediction Systems, Seoul, Korea, Republic of (South)
 
Estimation of monthly precipitation normals in North Korea using PRISM and improved detailed topographic information (571765)
Jin-Hee Kim, Daejun Kim, Soo-ock Kim and Eun-Jeong Yun, National Center for AgroMeteorology, Seoul, South Korea
 
Multi-level Spectral Resolution Topography for Arbitrary Grids (573309)
Tae-Jin Oh, Korea Institute of Atmospheric Prediction Systems, Seoul, Korea, Republic of (South) and Seung-Bu Park, Columbia University of New York, Palisades, NY, United States
 
Simulation of Various Topographically Induced Mesoscale Processes in Armenia by the WRF Model (578128)
Artur Gevorgyan, Service of the hydrometeorology and active influence on atmospheric phenomena, Yerevan, Armenia
 
Formation of Terrain Trapped Airflows in Northern California during Atmospheric Rivers and its impact on Precipitation: A Case Study using Measurements and Model (595779)
Ju-Mee Ryoo1, Sen Chiao2, Ryan J Spackman1, Laura T Iraci1, F Martin Ralph3, Andrew Martin4, Josette Elizabeth Marrero5, Emma L Yates1, Randall M Dole6, Thaopaul V Bui1, Jonathan M Dean-Day1 and Cecilia S Chang1, (1)NASA Ames Research Center, Moffett Field, CA, United States, (2)San Jose State University, San Jose, CA, United States, (3)Scripps Institution of Oceanography, UC San Diego, Center for Western Weather and Water Extremes, La Jolla, CA, United States, (4)Portland State University, Portland, OR, United States, (5)Sonoma Technology, Inc., Petaluma, CA, United States, (6)NOAA Earth System Research Lab, Boulder, CO, United States
 
Atmospheric Rivers and Precipitation in High Mountain Asia (597452)
Deanna Nash and Leila V Carvalho, University of California Santa Barbara, Santa Barbara, CA, United States
 
A Review of Cold Air Pool Events in the Intermountain West using Radiosondes and the North American Mesoscale Model (NAM) (610498)
Sean Colgan, Xia Sun and Heather Holmes, University of Nevada Reno, Atmospheric Sciences Program, Department of Physics, Reno, NV, United States
 
Extreme Fire Weather Conditions During the Summer 2018 Sundowner Event (628874)
Brandi Gamelin1, Tessa Montini1, Katelyn Zigner1, Gert-Jan Duine2, Leila Carvalho3 and Charles Jones1, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)Earth Research Institute, Santa Barbara, United States, (3)University of California, Santa Barbara, Santa Barbara, CA, United States
 
Objective Categorization of South American Low-Level Jet Events by Synoptic-Scale Conditions (631091)
Tessa Montini and Charles Jones, University of California Santa Barbara, Santa Barbara, CA, United States
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