scholarly journals Extrapolation of high winds in complex terrain: An application in the McGregor Model Forest, British Columbia, Canada.

2002 ◽  
Author(s):  
Brendan Dalton Murphy
Keyword(s):  
British Columbia ◽  
Complex Terrain ◽  
High Winds

scholarly journals A model-based study of the wind regime over Corinthian Gulf in Greece

2013 ◽  
Vol 1 (3) ◽  
pp. 2079-2107
Author(s):  
I. Koletsis ◽  
V. Kotroni ◽  
K. Lagouvardos
Keyword(s):  
Sea Level ◽  
Complex Terrain ◽  
Winter Season ◽  
Complex Topography ◽  
High Mountains ◽  
Wind Regime ◽  
Model Based ◽  
Mm5 Model ◽  
Wind Events ◽  
High Winds

Abstract. The Corinthian Gulf is a narrow sea-level passage surrounded by a steep complex topography that consists of high mountains, elevated and sea-level gaps/straits. The complex terrain is expected to affect the wind flow in the area that often experiences high winds with important consequences on the commercial and recreational activities over the Gulf maritime area. For that reason, a model-based study of the wind regime over the Corinthian Gulf has been built, as observational data over the area are recent and spatially sparse. The analysis of 5yr data from MM5 model reveals that the wind regime of the gulf is greatly influenced by the topography. Easterly winds occur more frequently and are stronger at the maritime area in the western edge of the gulf with a frequency of occurrence of the order of 70%. Moreover, the most intense wind events at this area occur during the winter season (December, January, and February). Finally the paper also provides a discussion on the synoptic patterns, which lead to the strongest wind events in the studied area.

Evaluation of Reanalyses over British Columbia. Part II: Daily and Extreme Precipitation

2019 ◽  
Vol 58 (2) ◽  
pp. 291-315 ◽  
Author(s):  
Pedro Odon ◽  
Gregory West ◽  
Roland Stull
Keyword(s):  
British Columbia ◽  
Complex Terrain ◽  
Climate Forecast System ◽  
Climate Forecast System Reanalysis ◽  
Weather Forecasts ◽  
Time Period ◽  
Medium Range ◽  
L Moments ◽  
Modern Era ◽  
Terrain Characteristics

AbstractThis study evaluates how well reanalyses represent daily and multiday accumulated precipitation (hereinafter daily PCP) over British Columbia, Canada (Part I evaluated 2-m temperature). Reanalyses are compared with observations from 66 meteorological stations distributed over the complex terrain of British Columbia, separated into climate regions by k-means clustering. Systematic error, two-sample χ2 statistic, and frequency of daily PCP occurrence are evaluated from the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim), the Climate Forecast System Reanalysis (CFSR), the Japanese 55-year Reanalysis (JRA-55), and the latest Modern-Era Retrospective Analysis for Research and Applications (version 2; MERRA-2). The 2- and 30-yr return levels of daily PCP are estimated from a generalized extreme value (GEV) distribution fitted by the method of L moments, and their systematic errors are analyzed. JRA-55 and MERRA-2 generally outperform ERA-Interim and CFSR across all metrics. Biases are largely explained by poor reanalysis representation of terrain characteristics such as steepness, exposure, elevation, location of barriers, and wind speed and direction. Statistical stationarity of precipitation intensity and frequency over the 30-yr period is assessed by using confidence intervals and GEV distributions fitted with and without time-dependent parameters. It is determined that stationary distributions are sufficient to represent the climate of daily PCP for this region and time period.

Trichaptum abietinum from British Columbia exhibited anti-proliferative and immuno-modulatory activities

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
A Barad ◽  
S Javed ◽  
CH Lee
Keyword(s):  
British Columbia
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