Photo credit: Cypress Mountain Webcam
Photo credit: Cypress Mountain Webcam
by Howard R., Modzelewski H., and Stull R.
For the 2010 Winter Olympic Games, we produced daily forecasts of temperature, snow, and cloud cover for ski race organizers and team technicians, as well as wind speed and direction for aerial sports, given as head/cross winds for specific locations.
by Howard R., Modzelewski H., and Stull R.
Snow-surface temperature can vary substantially between sunny and shaded sections of ski runs, and different ski waxes are optimized for different temperatures. We supplemented our daily weather forecasts with ski run point forecasts of sun vs. shade based upon the surrounding terrain, including evergreen trees, mountains, and any other objects that may block the sun. We used a theodolite to measure the “sky-view” at 133 locations for three Olympic venues, and incorporated these into equations calculating the relative positions of the sun and earth.
Photo credit: Environment Canada
Photo credit: Environment Canada
Photo credit: J. Jeworrek
Photo credit: J. Jeworrek
We make forecasts of sunshine and cloudiness for greenhouses, forest productivity and carbon sequestration, & tree blowdown.
We were also hired by the Arable agriculture weather instrument company to calibrate their acoustic rain gauge against our more expensive "gold-standard" disdrometer
Photo credit: J. Jeworrek
Photo credit: NNECAPA Photo Library
Photo credit: NNECAPA Photo Library
Williston Silt. Photo credit: W.G. Nickling
We made a high-resolution simulation of winds in the northern arm of the BC Hydro Williston Reservoir (see image below). When the water level is low in the reservoir, it exposes fine silt that can be picked up by the wind. The resulting dust storms were impacting First Nations communities around the north end of the reservoir.
Williston Silt. Photo credit: W.G. Nickling
WAC Bennett rip-rap upgrades. Photo credit: Kiewit
Rip-rap is human-placed rock that breaks waves to prevent erosion. BC Hydro workers wanted wind speed forecasts to know when it was safe to replace the rip-rap at the WAC Bennett Dam in 2017.
For this purpose we ran WRF at 0.44-km grid spacing to resolve winds on the east arm of the Williston Reservoir, where the waves would hit the Bennett dam and cause erosion.
WAC Bennett rip-rap upgrades. Photo credit: Kiewit
