ESS124
Prof. Jin-Yi Yu
AWOS
C:\Documents and Settings\Bob\Desktop\Work\Book-Edition 3\E3 Chapter 02 Instrumentation\Chapter 2 Final Figures\CH2 Gifs with copyright for CD\Fig.2A.jpg
(from http://www.allweatherinc.com)
A ceilometer is a device to determine the height of a cloud base.