Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

NASA Scientists Report Insights into Rainfall

Photonics Spectra
Jul 1998
Thanks to recently released images taken from a NASA/ Japan Space Agency spacecraft's lightning image sensor, scientists are gaining new insights into rainfall-producing cloud systems over the tropics.


Sensors aboard a NASA satellite captured this image of Atlanta. Colors on the map signify heat and pollution.

Recent images reveal that 98 percent of lightning occurs over land and little over the oceans. NASA scientists attribute this phenomenon to enhanced convection: the continual overturning of the atmosphere that occurs as water, evaporated from the Earth's surface, carries excess heat energy into the upper atmosphere. The small lightning sensor imaged both cloud-to-ground and cloud-to-cloud lightning.

NASA's work could lead to a space-based lightning mapper that could deliver day and night information to a forecaster within 30 seconds of each lightning strike.


Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!