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Alaska's treeless North Slope, the area north of the Brooks Range, has average annual temperatures in the range of 10 degrees Celsius below zero and continuous permafrost up to 600 meters thick. The area of the North Slope is about 200,000 square kilometers, roughly the size of Nebraska. Alaska's 19,000 square kilometers of lakes occupy more ...
Scientists in Alaska have several dependable methods for measuring glaciers, among them laser-altimetry systems mounted in planes that fly over glaciers, as well as gravity-measuring systems deployed by satellites. These methods have helped researchers find that most of Alaska’s glaciers are on the wane, despite a snowy and cold 2007-2008.
The drop size of such gentle, windless rain is near one-half millimeter (mm), roughly the diameter of a straight pin. Falling at a speed of about 6 kmph, those tiny drops are still far larger than the 0.02 mm sized particles in a non-precipitating cloud. Large raindrops evidently grow mainly through collision of smaller drops when there is ...
Alaska heavy with summer insects. In these days of endless sunshine and air that doesn’t hurt to breathe, life is rich in the north, from the multitude of baby birds hatching at this instant to the month-old orange moose calves restocking the Alaska ungulate population. Less seen are the millions of insects now dancing across the tundra and ...
June 22, 1984 / Larry Mayo. 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 ...
Yet another dramatic Arctic Report Card. December 14, 2023 / Ned Rozell. SAN FRANCISCO — In December 2006, I sat in a similar carpeted room in this city and listened to scientists talk about an Alaska-size chunk of sea ice that was no longer floating on the northern oceans compared to previous years. That meant that the “refrigerator of the ...
The lion that walked through your yard. Grizzly and black bears remind humans that we are not at the top of the food chain in Alaska. Ancient Alaskans shared the grasslands with possibly an even more terrifying predator — the American lion. American lions — about the size of African lions today — stalked the hills and valleys of Alaska ...
Alaska Science Forum /. ‘Snakeworm’ mystery yields species new to science. The larval stage of a snakeworm gnat that can form road-crossing columns consisting of thousands of individuals. Photo by Derek Sikes. An adult female snakeworm gnat that scientists recently described as a new species found, so far, only in Alaska.
Most of Alaska gets a double dose of daylight savings. When we push our clocks ahead for the daylight savings time period---the first Sunday in April until the last Sunday in October---the sun reaches its zenith at about 2 p.m. in Fairbanks and Anchorage. Many scientists refer to this in summer field notes as double daylight savings time ...
EAGLE, ALASKA — While most of the town was sleeping, the ice slipped out. Breakup happened on the Yukon River here at its first settlement in the United States at around 2 a.m. on Saturday, May 7, 2022. That’s when meltwater rushing from side creeks into the colossal groove of the Yukon lifted a winter-hardened sheet in front of the town.