Sunday, April 10, 2011

Radar Series -April 10

The following 3 screen images show the change in radar returns for the evening of Sunday April 10th as birds lift off at sunset and head north. In a live, looping image the change is impressive. Notice how the spaces between the radar locations fills in with color and how the center of each radar "donut" gets more green as time has elapsed. It looks like lots of birds moving in the southeast tonight. The shots cover approximately one hour of time.

1 comment:

Avifan said...

so do the colors signify the birds or just the density of the birds. I see the blue spreading throughout the image and some green becoming larger. Am I seeing a low density movement in the blue and higher density movement in the green?