CULT: NASA Releases New Way to Measure Drought
- To: "iris_talk (E-mail)"
- Subject: CULT: NASA Releases New Way to Measure Drought
- From: S* S*
- Date: Sat, 23 Sep 2000 10:24:05 -0400
- Importance: Normal
-------------------------- eGroups Sponsor -------------------------~-~>
Free @Backup service! Click here for your free trial of @Backup.
@Backup is the most convenient way to securely protect and access
your files online. Try it now and receive 300 MyPoints.
http://click.egroups.com/1/6348/0/_/486170/_/969719055/
---------------------------------------------------------------------_->
NASA Releases New Way to Measure Drought [.tiff, QuickTime]
http://svs.gsfc.nasa.gov/imagewall/drought.html
NASA has unveiled its new Multi-Spectral Drought Indexer (MSDI),
improving existing technology for measuring absorption and reflection of
sunlight by plants in order to make maps of unprecedented detail. The data,
which come from satellites, are translated by researchers into monthly maps
of vegetation color changes, thus indicating how much soil moisture is
available to plants. The existing index, Normalized Difference Vegetation
Index (NDVI), has been in operation for 20 years, providing a relatively
long time range over which to track plant moisture. Ultimately, the 20-year
data in combination with the new high resolution data will be used to
predict the intensity of future droughts. This site provides an overview of
MSDI technology and drought studies. Highlights of the site include a page
of images of North America and Africa comparing average vegetation color
with that of drought years (.jpeg, .tiff), and animations of season cycles,
satellite imaging technology, and drought history (QuickTime). Links to the
original NASA press release and to the overseers, Goddard Space Center's
Scientific Visualization Studio, are also present. Because of the potential
for serious drought to immobilize nations for years at a time, the
Multi-spectral Drought Indexer's release is important news to the world
over.
\\Steve//
For tropical fish and aquariums in MA, visit:
http://www.petsforum.com/was/
If you are in the DC Metro area, visit:
http://www.pvas.com
If your interest lies in dogs, visit:
http://www.petsforum.com/ace/
Manager Fish Club and Society WebRing
http://www.petsforum.com/was/fishclub/fishclub.html
List Owner: fishadmin
http://www.eGroups.com/group/fishadmin
subscribe: f*@egroups.com
Visit my family at:
http://www.familyszabo.com
