The Vanguard Torrential Storm (Meteorology and Hydrology)

Autor: Hunter, Fraser G., Donald, David B., Johnson, Brian N., Hyde, Wayne D., Hopkinson, Ron F., Hanesiak, John M., Kellerhals, Markus O.B., Oegema, Bart W.
Zdroj: Canadian Water Resources Journal; January 2002, Vol. 27 Issue: 2 p213-227, 15p
Abstrakt: On July 3, 2000, up to 375 mm of rain fell in eight hours from an intense and slow moving thunderstorm complex, inundating the Vanguard area of southern Saskatchewan. More than 100 mm of rain fell over an area of 1700 km2, making this the largest eight-hour storm ever documented on the Canadian prairies. Air-parcel back trajectories indicated that warm air from mid-continent North America, associated with a low-level jet stream, provided moisture for the storm. The storm was centred over the Notukeu Creek drainage basin. Discharge was 0.05 m3/s on July 2, but on July 4, peaked at 267 m3/s. The storm generated 353 million m3 of rain, of which an estimated 38% was discharged to Notukeu Creek and 62% or 219 million m3 was retained on the landscape.
Databáze: Supplemental Index