Image: Flow Visualization - A Course in the Physics and Art of Fluid Flow
Flow Visualization Home Galleries Course Info Links
2006 Gallery - Clouds 1
Clouds represent a fabulous form of flow visualization that is available to everybody, almost every day. Clouds can reveal a tremendous amount about the flows and physics of the atmosphere.
Instructions for the cloud assignment: Photograph a cloud. In fact, photograph clouds as often as possible. You will soon discover that it is not easy to do but that it is a very pleasant diversion from everything else that you do. Do keep track of where, when, and how the image was made. A report is required. Seek atmospheric sounding data and discuss the physics revealed. Exceptional images made prior to this course are acceptable; document them as best you can.
The most famous "cloud" photographs were made in black and white by the legendary early twentieth century New York art dealer, photographer, and husband of Georgia O'Keefe, Alfred Steiglitz. He called them "equivalents" and considered them to be music. Sunrise and sunset are sometimes quite colorful or even extraordinary, but difficult to picture in a satisfying way. During the day, individual clouds can be extremely interesting. In the course of this assignment you will discover what the English writer and amateur photographer George Bernard Shaw once said about the photographer: "The photographer is like the cod (fish) who lays a million eggs so that one may hatch." So, keep looking up and keep pressing the button. And, if you have access to an extreme wide angle lens as well as a telephoto lens, use them as needed and as often as possible. Clouds require that you think outside the box.
  Click to view larger image. Click to view larger image. Click to view larger image. Click to view larger image.  
 
Grant Bovee

1/30/06, Boulder CO. Edge of a nimbostratus sheet as a warm front moves in.

More info
Mike Demmons

2/27/06, USAF Academy, Colorado Springs, CO. Altocumulus.

More info
Andrea Fabri

Summer 2005, 10:30 am, Boulder CO. Cumulus fractus.

More info
Tanner Ladtkow

1/30/2006, Boulder, CO. Altocumulus lenticularis, or 'mountain wave' cloud forms in the lee of the Rocky Mountains as stable air comes over the mountains and 'bounces.'

More info.
 
  Click to view larger image. Click to view larger image. Click to view larger image. Click to view larger image.    
 
Chris Kuhn

8/11/2004, near Tuscon, AZ. Monsoon-induced cumulus and cumulonimbus.

More info.
Lok Kin Lee

2/21/2006, Boulder, CO. Cumulus fractus in a mountain wave.

More info.
Jake Lilevjen

2/21/2006, Boulder, CO. Cumulus fractus in a mountain wave.

More info.
Tim Read

Altocumulus lenticularis, Boulder, CO.
   
  Click to view larger image. Click to view larger image. Click to view larger image. Click to view larger image.    
 
Nigel Gorbold

2/25/06, 10 AM, Boulder, CO. Altocumulus lenticularis formed downwind of Bear Peak in high-velocity Foehn winds.

More info.
Christopher McCray

2/27/06, NW of Boulder, CO. Wind shear rolls altocumulus lenticularis into a display of the Kelvin-Helmholtz instability.

More info.
Hwapyong Ko

2/25/06, 3pm, Boulder, CO. Altocumulus lenticuaris, with sparse cumulus below, suggesting low level instability with an upper stable layer.

More info.
Geneva Wilkesanders

1/30/06, 7AM, west of Superior, CO. A vertically propagating mountain wave results in a stack of lenticular clouds.

More info.
   
  Click to view larger image. Click to view larger image. Click to view larger image. Click to view larger image.    
 
Melissa Talmage

2/2/06, 4:30 PM, Boulder, CO. Altocumulus viewed straight up.

More info.
Molly Selting

2/9/06, 2:38 PM, looking SW from Boulder, CO. Stratocumulus.

More info.
Ryan Mansfield

2/28/06, 5 PM, Boulder CO. Cumulus humulis.

More info.
Kaleena Menke

2/28/06, Denver area. Cumulus below altostratus.

More info.
   
  Click to view larger image. Click to view larger image. Click to view larger image. Click to view larger image.    
 
Taylor Simonson

6/7/05, 8:25 PM, Greeley, CO. Nimbostratus.

More info.
Christopher Skallerud

2/21/06, 4:15 PM, Boulder, CO. Cumulus fractus in a mountain wave.

More info.
Chris Ostoich

2/21/06, 11:30 AM, Boulder, CO. Cumulus fractus in a mountain wave.

More info.
Dustin Scaplo

   
  Click to view larger image. Click to view larger image.  
 
James Palmer

1/30/06, just before sunset, Boulder CO. A vertically propagating mountain wave results in a stack of altocumulus lenticularis.

More info.
Tyler Harrison

2/25/06, 2:30 PM, Eldorado Springs, CO. Altocumulus undulatus.

More info.