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The Columbia Glacier is one of Alaska's better known tidewater glaciers, both from the standpoint of tourist attraction and the model it provides for scientific investigation. In 1973 it became the object of close scientific scrutiny. In Alaska, some 50 to 60 glaciers calve into the sea, but exhibit such diversified behavior that they have baffled glaciologists for decades. For instance, some ...
The team analyzed 20 years of Columbia Glacier’s seismic activity to learn what these signals can reveal about changes in the glacier and the conditions that drive them. The glacier has been retreating since the early 1980s after approximately 200 years of stability. The findings were published March 22 in Geophysical Research Letters.
Columbia Glacier, located about 40 kilometers (25 miles) west of Valdez near the epicenter of the great 1964 earthquake, is rapidly losing its battle for survival. It is the last of Alaska's 52 tidewater glaciers to begin its epic retreat from the sea. Granted, Alaska still has plenty of glaciers left, but the tidewater glaciers--those that empty directly into the sea--are on a drastic decline ...
Columbia Glacier in Prince William Sound and Bering Glacier in the St. Elias Mountains are two glaciers losing ice at an alarming rate: during the past decade, Columbia has shrunk by an average of about 21 feet per year along the length of the glacier; Bering has lost more than 9 feet per year.
At the same time, a ridge of high pressure built northward over British Columbia and the Alaska Panhandle, setting up a pattern that steered warmer air from the south into much of mainland Alaska. As a result, temperatures climbed above average across much of mainland Alaska early in the month, although the Arctic Coast remained cold.