A11J:
Observations and Predictability of the Atmosphere over Complex Terrain II Posters

Submit an Abstract to this Session



Session ID#: 23246

Session Description:
Mountainous terrain is complex given the variety of slope angles and orientations, surface types, valley widths and curvatures. Atmospheric circulations over this intricate geometry arise from synoptic, orographic and/or thermally-driven pressure gradients, resulting in inherently complex motions with a wide range of spatial and temporal scales. Although recent years have seen sustained efforts to improve the predictability of flows over complex terrain, several scientific questions remain unsolved.

This session focuses on microscale and mesoscale atmospheric phenomena in the atmospheric boundary layer over mountainous terrain. We seek original contributions including theoretical, observational and modeling studies that are related to mountain meteorology. Topics of interest emerging from synergetic fields are also welcomed, including data assimilation, remote sensing, hydrology, air quality, fog formation, agriculture/viticulture, fire weather, urban canopies in complex terrain, and snow transport.

Primary Convener:  Daniel Nadeau, Laval University, Civil and Water Engineering, Quebec City, QC, Canada
Conveners:  Holly J Oldroyd, University of California Davis, Civil and Environmental Engineering, Davis, United States, Eric Pardyjak, University of Utah, Mechanical Engineering, Salt Lake City, UT, United States and Natalie Wagenbrenner, Rocky Mountain Research Station Missoula, Missoula, MT, United States
Chairs:  Daniel Nadeau, Laval University, Civil and Water Engineering, Quebec City, QC, Canada, Holly J Oldroyd, EPFL Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, Natalie Wagenbrenner, Rocky Mountain Research Station Missoula, Missoula, MT, United States and Eric Pardyjak, University of Utah, Mechanical Engineering, Salt Lake City, UT, United States
OSPA Liaison:  Daniel Nadeau, Laval University, Civil and Water Engineering, Quebec City, QC, Canada

Cross-Listed:
  • B - Biogeosciences
  • C - Cryosphere
  • H - Hydrology
Index Terms:

3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3322 Land/atmosphere interactions [ATMOSPHERIC PROCESSES]
3329 Mesoscale meteorology [ATMOSPHERIC PROCESSES]
3379 Turbulence [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

The impact of spatial resolution on resolving spatial precipitation patterns in the Himalayas (219627)
Pleun NJ Bonekamp1, Emily Collier2 and Walter W. Immerzeel1, (1)Utrecht University, Department of Physical Geography, Utrecht, Netherlands, (2)Friedrich-Alexander University Erlangen-Nürnberg, Climate System Research Group, Institute of Geography, Erlangen, Germany
‘Surface-Layer’ momentum fluxes in nocturnal slope flows over steep terrain (233546)
Holly J Oldroyd, University of California Davis, Civil and Environmental Engineering, Davis, United States, Eric Pardyjak, University of Utah, Department of Mechanical Engineering, Salt Lake City, UT, United States, Chad W Higgins, College of Agricultural Sciences, Oregon State University, Biological and Ecological Engineering, Corvallis, OR, United States and Marc B Parlange, Monash University, Melbourne, Australia
Topographic effects on spatiotemporal variations of short-duration rainfall events in warm season of central North China (272821)
Weihua Yuan1, Rucong Yu2, Haoming Chen2 and Wei Sun1, (1)LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (2)Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing, China
Observations and predictability of gap winds in a steep, narrow, fire-prone canyon in central Idaho, USA (272945)
Natalie Wagenbrenner1, Jason Forthofer1, Chris Gibson2 and Brian K Lamb3, (1)Missoula Fire Sciences Laboratory, Missoula, MT, United States, (2)National Weather Service, Missoula, United States, (3)Washington State University, Pullman, WA, United States
Assessment of the Influence of Topography in Extreme Precipitation Events in Andean Northwestern Colombia (294675)
Silvana María López, Universidad Nacional de Colombia, Sede Medellín, Medellín, Colombia and Carlos David Hoyos Ortiz, Universidad Nacional de Colombia, Sede Medellín, Departamento de Geociencias y Medio Ambiente / Geoscience and Environment Department, Medellín, Colombia

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