ROCKMAN wrote:The glacier feeds off of the Columbia Ice Field In Alberta.
kiwichick wrote:@ keith
care to expand on that?
GLACIER NATIONAL PARK, Mont. -- What will they call this place once the glaciers are gone?
A century ago, this sweep of mountains on the Canadian border boasted some 150 ice sheets, many of them scores of feet thick, plastered across summits and tucked into rocky fissures high above parabolic valleys. Today, perhaps 25 survive.
In 30 years, there may be none.
A warming climate is melting Glacier's glaciers, an icy retreat that promises to change not just tourists' vistas, but also the mountains and everything around them.
Streams fed by snowmelt are reaching peak spring flows weeks earlier than in the past, and low summer flows weeks before they used to. Some farmers who depend on irrigation in the parched days of late summer are no longer sure that enough water will be there. Bull trout, once pan-fried over anglers' campfires, now are caught and released to protect a population that is shrinking as water temperatures rise.
Many of the mom-and-pop ski areas that once peppered these mountains have closed. Increasingly, the season is not long enough, nor the snows heavy enough, to justify staying open.
What is happening is occurring, to greater or lesser extents, in mountains across the North American West. In the Colorado Rockies, the median date of snowmelt shifted two to three weeks earlier from 1978 to 2007. In Washington, the Cascades lost nearly a quarter of their snowpack from 1930 to 2007. Every year, British Columbia's glaciers shed the equivalent of 10 percent of the Mississippi River's flow because of melting.
GLACIER NATIONAL PARK, Mont. -- What will they call this place once the glaciers are gone?
Alaska's melting glaciers are adding enough water to the Earth's oceans to cover the state of Alaska with a 1-foot thick layer of water every seven years, a new study shows.
The study found that climate-related melting is the primary control on mountain glacier loss. Glacier loss from Alaska is unlikely to slow down, and this will be a major driver of global sea level change in the coming decades, according to the study's authors.
"The Alaska region has long been considered a primary player in the global sea level budget, but the exact details on the drivers and mechanisms of Alaska glacier change have been stubbornly elusive," said Chris Larsen, a research associate professor with the Geophysical Institute at the University of Alaska Fairbanks. Larsen is lead author of the new study accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union.
The UAF and U.S. Geological Survey research team analyzed surveys of 116 glaciers in the Alaska region across 19 years to estimate ice loss from melting and iceberg calving. The team collected airborne lidar altimetry data as part of NASA's Operation IceBridge and integrated the new data with information from the 1990s collected by UAF scientist and pilot Keith Echelmeyer.
They combined the lidar observations with a new mountain glacier inventory that characterizes the size and shape of every glacier in the Alaska region, which includes the glaciers of Alaska, southwest Yukon Territory and coastal northern British Columbia.
The World Glacier Monitoring Service ... has just compared all known 21st century observations with data from site measurements, aerial photography and satellite observations and evidence from pictorial and written sources. Altogether, the service has collected 5,000 measurements of glacier volume and changes in mass since 1850, and 42,000 records of variations in glacier fronts from records dating back to the 16th century.
And the evidence is clear: the glaciers are in retreat, worldwide, and the retreat is accelerating.
“The observed glaciers currently lose between half a metre and one metre of ice thickness every year – this is two to three times more than the corresponding average of the 20th century,” says the study’s lead author, Michael Zemp, who directs the monitoring service. “Exact measurements of this ice loss are reported from a few hundred glaciers only. However, these results are qualitatively confirmed from field and satellite observations for tens of thousands of glaciers around the world.”
kiwichick wrote:been like that for a while now ad.
The first European description of one of the west-coast glaciers (believed to be Franz Josef).[5] The glacier was later named after Emperor Franz Joseph I of Austria by the German explorer, Julius von Haast in 1865. The Māori name for the glacier is Ka Roimata o Hinehukatere ('The tears of Hinehukatere'), arising from a local legend: Hinehukatere loved climbing in the mountains and persuaded her lover, Wawe, to climb with her. Wawe was a less experienced climber than Hinehukatere but loved to accompany her until an avalanche swept Wawe from the peaks to his death. Hinehukatere was broken hearted and her many, many tears flowed down the mountain and froze to form the glacier.
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