Envirocast® On-Line Feature of the Week -- August 23, 2007

Flooding in Ohio

The images in this Envirocast® On-Line were captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Aqua satellite on August 13, 2007 and onboard NASA's Terra satellite on August 22, 2007.  They show the flooding in Ohio on the Blanchard River and in the city of Findlay.

Floods in Ohio

On August 22, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured the image of the flood-swollen Blanchard River in Ohio which flows through the city of Findlay.  The city is enduring its worst flood in nearly 100 years.

 

In false-color images, made with a combination of infrared and visible light, water is dark blue or black. The land around the water is covered in bright green vegetation spotted with silvery-gray cities. Bare or sparsely vegetated land is tan, and clouds are white and pale blue.

Environmental Impacts:

  • As of 7:00am ET, flood watches and warnings were in effect in Illinois, Indiana, Iowa, Michigan, Minnesota, Nebraska, Ohio, South Dakota and Wisconsin.

  • The Ohio government has declared a state of emergency in 9 counties.

  • The Blanchard River reached 6 feet above flood stage in the city of Findlay, and the city is enduring its worst flooding since 1913.

  • Including deaths from a separate storm system in Oklahoma and Texas, 26 people have died in recent flooding in the United States, according to an Associated Press count.

Supplementary Material:

NASA's TERRA Satellite:

  • The Terra spacecraft (formally known as EOS-AM) was successfully launched on Saturday, December 19, 1999 at the Vandenberg Air Force Base (VAFB) in Lompoc, California. It is flying at an altitude of 705 km (438 miles) observing the Earth. The life expectancy of the Terra mission is 6 years. It will be followed in later years by other EOS spacecraft that take advantage of new developments in remote sensing technologies.

NASA's AQUA Satellite:

  • Aqua, Latin for water, is a NASA Earth Science satellite mission collecting about the Earth's water cycle, including evaporation from the oceans, water vapor in the atmosphere, clouds, precipitation, soil moisture, sea ice, land ice, and snow cover on the land and ice. The Aqua spacecraft (formally known as EOS-PM) was successfully launched on May 4, 2002 at the Vandenberg Air Force Base (VAFB) in Lompoc, California. It is flying at an altitude of 705 km (438 miles) observing the Earth, and the life expectancy is 6 years.

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