Images of the SUN and a solar flare 

				 	 

	 Solar Radiation Resource Information: SRRI 

  Instrumentation: a pyranometer and a pyrheliometer: Other Instruments 

				 	 



 Link to the NASA Global Hydrology and Climate Center. GHCC. 

 
 
	
Skew-T Log-P Chart; Greensboro, NC: 
	
Link to Current Upper Air Soundings: Unisys Skew
How to read a Skew-T chart: Skew-T
Interactive Weather-Related Calculators: Calculators


 Links to El Niño phenomena in the news. El Niño 

		  
 



 Links to NOAA El Niño observations. El Niño 

	    
	    



  Links to the UNESCO International Hydrological Programme (IHP) 
  and the IHP Waterway Newsletter. IHP. 

   
 
 


 Link to the American Institute of Hydrology (AIH). AIH. 

 

 Anatomy of a hurricane (a gradient wind). 
 
	 	 

Hurricanes are born in the steamy late-summer environment of the tropics 
when rapidly evaporating ocean waters combine with strong wind currents 
to spawn a hurricane. Several hundred miles wide and packing winds of over
100 m.p.h., hurricanes cool the Earth by sucking heat from the Earth's
surface and drawing it into the upper atmosphere above 40,000 feet.

a. Exhaust: Hot air drawn into the atmosphere 

b. Spiraling Storm Clouds

c. Eye: Cool air descends into the eye (~ 20 mi. wide) creating a small 
   center of calm weather. 

d. High Winds: In the lower few thousand feet of the hurricane, air 
   flows in toward the low pressure center and it whirls upward. These
   spiraling winds gain speed as they approach the central eye, just 
   as currents do in a whirlpool. The narrower the eye, the stronger
   the winds. 

e. Spiraling winds spin counterclockwise in the Northern Hemisphere,
   clockwise in the Southern Hemisphere.

f. High Resolution image of Charley on August 13, 2004

	 

 

 Tornadoes (cyclostrophic wind penomena). 
 
	 

 Link to the disaster center tornado home page. Tornadoes. 
 


 

 Last modified August 29, 2004