File:Great Lakes, No Clouds (4968915002) Brighter.jpg

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Image title	NASA image acquired August 28, 2010Late August 2010 provided a rare satellite view of a cloudless summer day over the entire Great Lakes region. North Americans trying to sneak in a Labor Day weekend getaway on the lakes were hoping for more of the same.The Great Lakes comprise the largest collective body of fresh water on the planet, containing roughly 18 percent of Earth's supply. Only the polar ice caps contain more fresh water. The region around the Great Lakes basin is home to more than 10 percent of the population of the United States and 25 percent of the population of Canada.Many of those people have tried to escape record heat this summer by visiting the lakes. What they found, according to The Hamilton Spectator, was record-breaking water temperatures fueled by record-breaking air temperatures in the spring and summer. By mid-August, the waters of Lake Superior were 6 to 8°C (11 to 14°F) above normal. Lake Michigan set records at about 4°C (7°F) above normal. The other three Great Lakes – Huron, Erie, and Ontario -- were above normal temperatures, though no records were set.The image was gathered by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite at 1:30 p.m. Central Daylight Time (18:30 UTC) on August 28. Open water appears blue or nearly black. The pale blue and green swirls near the coasts are likely caused by algae or phytoplankton blooms, or by calcium carbonate (chalk) from the lake floor. The sweltering summer temperatures have produced an unprecedented bloom of toxic blue-green algae in western Lake Erie, according to the Cleveland Plain Dealer..References.Environmental Protection Agency. (n.d.) The Great Lakes Atlas. Accessed September 3, 2010..The Cleveland Plain Dealer. (August 22, 2010) Scientists say the toxic blue-green algae will only get worse on Ohio lakes. Accessed September 3, 2010..The Hamilton Spectator. (August 13, 2010) Great Lakes turn to 'bath water.' Accessed September 3, 2010.NASA image by Jeff Schmaltz, MODIS Rapid Response Team, Goddard Space Flight Center. Caption by Mike Carlowicz.Instrument: Aqua - MODISClick here to see more images from<b><a href=" http://earthobservatory.nasa.gov/">NASA Goddard’s Earth Observatory</a></b><b><a href="http://www.nasa.gov/centers/goddard/home/index.html" rel="nofollow">NASA Goddard Space Flight Center</a></b>is home to the nation's largest organization of combined scientists, engineers and technologists that build spacecraft, instruments and new technology to study the Earth, the sun, our solar system, and the universe.<b>Follow us on<a href="http://twitter.com/NASA_GoddardPix" rel="nofollow">Twitter</a></b><b>Join us on<a href="http://www.facebook.com/pages/Greenbelt-MD/NASA-Goddard/395013845897?ref=tsd" rel="nofollow">Facebook</a></b>
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	GIMP 2.10.30
File change date and time	12:08, 11 October 2022
Color space	sRGB
Image width	5,200 px
Image height	4,000 px
Unique ID of original document	xmp.did:05801174072068119109EF8D72F9CB02
Date and time of digitizing	07:08, 30 August 2010
Date metadata was last modified	10:42, 2 September 2010
Keywords	Great Lakes Lake Superior Green Bay Lake Michigan Chicago Lake Huron Georgian Bay Detroit Toronto Lake Ontario Finger Lakes Cleveland No Clouds NASA Satellite Goddard Space Flight Center North America United States

File:Great Lakes, No Clouds (4968915002) Brighter.jpg

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."