To counter the threat of avalanches, Canada fired artillery into the mountains

2022-05-07 0 By

British Columbia in Canada in extreme climate can say troubled, 2021 first heat waves, wildfires, wildfire again after the big flood, disrupting traffic logistics severely hinder, vancouver winter now and meet with an unusually heavy snowfall, make traffic is under the threat of an avalanche, and Canada had to sacrifice the shells hit mountain, to ensure road safety.In January 2022, snow on the mountains of British Columbia, on average, 15% more than normal, the el nino phenomenon caused by heavy rains in November 2021 and December the freeze, and early release in January 2022, due to the fragile snow cover, occur without warning the risk of an avalanche, becoming a serious security problem, so have to actively control the avalanche.Avalanche control means blocking roads and triggering small, controlled avalanches, reducing the amount of snow that accumulates on mountains and preventing deadly accidents when vehicles pass by.The shelling of the mountain to prevent avalanches began in 1961. Before that, avalanches were a major traffic threat, killing 62 railway workers in 1910.While avalanche control has been common in the past, in early 2022 areas that have not previously required avalanche control are becoming danger zones, such as Fraser Canyon, 150 km northeast of Vancouver, which will require avalanche control for the first time in 25 years.And highway 99, north of Vancouver, had three times as many avalanche controls as usual.The 135 avalanche paths that Highway 1 passes through have seen an average of 30 percent more snow and avalanche control.For small avalanches, shrapnel hill is involved. Along Highway 1, the avalanche control unit is the taxi Brigade of the 1st Regiment royal Canadian Horse Artillery, which fires a howitzer shell containing 4kg of explosives into the snow bags.Helicopters also drop bombs or detonate explosives by remote control, which cost C $600,000 a year.This winter the force has fired 333 rounds of artillery, caused 197 man-made avalanches and closed roads for 43 hours during the seven days of operations.Although the operation was ultimately intended for traffic safety and to prevent avalanches from damaging roads, the closures, which were more frequent than in previous years, added to the damage to traffic around Vancouver, which had previously been affected by flooding.November’s floods affected three major highways around Vancouver. Highway 1 is Canada’s east-west artery, with 3,000 vehicles passing through the Roggigos Pass daily in winter.Avalanche control usually lasts until April or even early May.With road closures and shelling still a long way off, and Canadian logistics continuing to be affected by weather conditions, we can only hope that this is a special year of anti-El Nino events, rather than an annual occurrence of extreme weather.(First image: Flickr/amanderson2CC BY 2.0)