An Example of Observations from MAPR.

This plot shows an Arctic front passing over MAPR at Erie, CO, on December 18, 1998. The three panels show signal, vertical motion, and wind barbs as measured by the radar. The blue shading in the top panels corresponds to snow being brought in by the front.

The red trace superimposed on the top panel shows a rapid drop in temperature. The area of red in the middle panel indicates a region of updraft that appears to be a brief but powerful surge of cold air pushed along the leading edge of the front.

The wind measurements shown in the bottom panel were made at a rate 10 to 20 times faster than is possible with conventional profilers. As can be seen this instrument opens up exciting possibilities for studying rapidily evolving weather events.

• This study is the topic of a presentation at an up-coming profiler workshop