17 Jul '12, 5am

See the impact of the US drought by where the green isn't: 'vegetation anomaly' map from NASA satellite data.

See the impact of the US drought by where the green isn't: 'vegetation anomaly' map from NASA satellite data.

The extent of the damage to crops is depicted in this vegetation anomaly map based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite. The map contrasts plant health in the central United States between June 25 and July 10, 2012, against the average conditions between 2002 and 2012. Brown areas show where plant growth was less vigorous than normal; cream colors depict normal levels of growth; and green indicates abnormally lush vegetation. Data was not available in the gray areas due to snow or cloud cover. The image is based on the Normalized Difference Vegetation Index (NDVI), a measure of how much plant leaves absorb visible light and reflect infrared light. Drought-stressed vegetation reflects more visible light and less infrared than healthy vegetation.

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=78553

Tweets

Current Drought is an Opportunity to Think About Replacing Turf with Gardens

Current Drought is an Opportunity to Think Abou...

treehugger.com 18 Jul '12, 9am

afagen /CC BY-NC-SA 2.0 Mount Vernon George Washington’s Mount Vernon was the first house in North America to incorporate ...

56% of US Now in Drought - Worst Since 1950s

56% of US Now in Drought - Worst Since 1950s

treehugger.com 16 Jul '12, 9pm

Quickly, in amongst all the other stats in the latest NOAA State of the Climate report is this: According to the US Drough...

Guest Post: Beat the Drought by Conserving Fresh Water - Green Building Elements: Guest Post: Beat the Drought b...

Guest Post: Beat the Drought by Conserving Fres...

greenbuildingelements.com 16 Jul '12, 6pm

In the kitchen, people can use a refrigerator water filter to cut down on the use of bottled water. Water filters remove s...

Nasa's rover on target to land on Mars for a 2 year mission to find out if microbial life once existed on the planet

Nasa's rover on target to land on Mars for a 2 ...

straitstimes.com 17 Jul '12, 2am

The area where NASA's Curiosity rover will land on Mars on August 6, 2012 is seen in this NASA handout false-color map bas...

Special report on #drought and #biofuels - @altenergystocks #climate #climatechange #energy

Special report on #drought and #biofuels - @alt...

altenergystocks.com 08 Jul '12, 2pm

Dire US media headlines abound: “Drought!” What’s real, what’s hype, and what are the impacts? More importantly, what alte...

NASA Testing Rover to Prospect for Water on the...

spectrum.ieee.org 17 Jul '12, 2pm

This prototype lunar rover is carrying a payload called RESOLVE, which (in one of the least-strained NASA acronyms I've ev...

Green Blog: On Our Radar: Mapping Drought Stres...

green.blogs.nytimes.com 18 Jul '12, 2pm

The National Oceanic and Atmospheric Administration creates an animation showing monthly composites of vegetation health. ...