NASA: USA - Rare Clear View of Alaska - 06.07.13
Posted by Ricardo Marcenaro | Posted in NASA: USA - Rare Clear View of Alaska - 06.07.13 | Posted on 17:46
acquired June 17, 2013
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acquired June 17, 2013
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acquired June 17, 2013
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On most days, relentless rivers of
clouds wash over Alaska, obscuring most of the state’s 6,640 miles
(10,690 kilometers) of coastline and 586,000 square miles (1,518,000
square kilometers) of land. The south coast of Alaska even has the
dubious distinction of being the cloudiest region of the United States, with some locations averaging more than 340 cloudy days per year.
That was certainly not the case on June 17, 2013, the date that the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra
satellite acquired this rare, nearly cloud-free view of the state. The
absence of clouds exposed a striking tapestry of water, ice, land,
forests, and even wildfires.
Snow-covered mountains such as the Alaska Range and Chugach Mountains
were visible in southern Alaska, while the arc of mountains that make
up the Brooks Range dominated the northern part of the state. The Yukon
River—the longest in Alaska and the third longest in the United
States—wound its way through the green boreal forests that inhabit the interior of the state. Plumes of sediment and glacial flour poured into the Gulf of Alaska from the Copper River. And Iliamna Lake, the largest in Alaska, was ice free.
The same ridge of high pressure
that cleared Alaska’s skies also brought stifling temperatures to many
areas accustomed to chilly June days. Talkeetna, a town about 100 miles
north of Anchorage, saw temperatures reach 96°F (36°C) on June 17. Other towns in southern Alaska set all-time record highs, including Cordova, Valez, and Seward. The high temperatures also helped fuel wildfires and hastened the breakup of sea ice in the Chukchi Sea.
References
- CMISS Satellite Blog (2013, June 17) Uncharacteristically cloud-free and warm across interior Alaska. Accessed June 18, 2013.
- Capitol Weather Gang (2013, June 18) Record-shattering heat bakes Alaska. Accessed June 18, 2013.
- NOAA (2013, June 18) All Time Record Highs Fall at Several Locations Across South Central Alaska. Accessed June 18, 2013.
Further Reading
- State of Alaska Geography of Alaska. Accessed June 18, 2013.
- Alaska History & Cultural Studies The Physical Geography of Alaska. Accessed June 18, 2013.
NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Adam Voiland.
- Instrument:
- Terra - MODIS
NASA: USA - Rare Clear View of Alaska - 06.07.13
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