Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
6 Teams Chosen to Compete for $35K in First-Ever FirePoint C3 Challenge
WICHITA, Kan. - The FirePoint Innovations Center at Wichita State...
MGISS Launches Integrated Web App for AR Visualisations of Buried Assets
MGISS, a UK geospatial specialist, has released a new...
CustomWeather Celebrates 20 Years of Weather Excellence and Innovation
MILL VALLEY, Calif.- CustomWeather reflects upon its numerous accomplishments...
Axon Launches First Connected App for Law Enforcement that Livestreams Drone Video Directly into Axon Evidence
SCOTTSDALE, Ariz. - Axon (Nasdaq: AAXN), the global leader in...
Microdesk Recognized as Panzura Partner of the Year
NASHUA, N.H.- Global BIM consulting firm Microdesk, a leading provider...

Sept. 11, 2011

Sept. 2, 2010

The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured these natural-color images of the Hudson River and East River. Both images are rotated, and north is at right. The top image shows the area on Sept. 12, 2011. The bottom image shows the same place about a year earlier, on Sept. 2, 2010. In September 2010, the water is navy blue. One year later, the water is reddish brown, and the hue appears more intense in the Hudson River than in the nearby East River.

Flooding not only raises river levels, but also increases the amount of sediment they carry. Torrential rain eats away at the ground, washing mud and debris into streams. After it is deposited into a river, sediment may sink to the bottom of the riverbed or may flow with the water toward the sea. Multiple rivers feed the Hudson, and some of the sediment winding up in the river in early September 2011 included reddish clays from the Catskills region, according to The New York Times.

NASA Earth Observatory image created by Jesse Allen and Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott.

Comments are closed.