Two days before the Kirksville, MO tornado (May 13, 2009), we drove the
SRV to Radiance Technologies in Oxford, MS, where engineers Hank
Rinehart and Mik Wimbrow were building us a radar to measure the
horizontal and vertical winds inside a tornado. We named this radar
CLOVER (Close Range Vertical Radar) since the primary goal is to
measure the updraft/downdraft winds inside a tornado, which has never
been accomplished to our knowledge. On May 11, CLOVER was ready to
acquire experimental data, so Hank and Mik attached the radar to the
back-right of the roof of the SRV for our storm chase in Missouri on
May 13. Here are the pictures and video from the radar installation at
Radiance:
Since the Kirksville chase was the first time deploying CLOVER in the field, Hank road with us and collected radar data when we were under wall clouds and inside the tornado. The goal of this first chase was to collect experimental data so the radar software and hardware could be optimized at Radiance. Instead, we got a little more than we bargained for and were able to collect wind data with CLOVER from inside an EF1 to EF2 tornado! To our knowledge, this was the first time a mobile radar had collected data from within the tornado circulation. Here is the video from the Kirkville tornado...For this experimental data collection chase, we oriented the radar antenna in the horizontal to measure the rotational winds. We also measured a 97 mph wind out of the east with the roof-top mounted anemometer, which was in the northern weak side of the tornado, but correlated well with what we measured with CLOVER. We'll likely be presenting the radar data soon, so stay tuned!
Since the Kirksville chase was the first time deploying CLOVER in the field, Hank road with us and collected radar data when we were under wall clouds and inside the tornado. The goal of this first chase was to collect experimental data so the radar software and hardware could be optimized at Radiance. Instead, we got a little more than we bargained for and were able to collect wind data with CLOVER from inside an EF1 to EF2 tornado! To our knowledge, this was the first time a mobile radar had collected data from within the tornado circulation. Here is the video from the Kirkville tornado...For this experimental data collection chase, we oriented the radar antenna in the horizontal to measure the rotational winds. We also measured a 97 mph wind out of the east with the roof-top mounted anemometer, which was in the northern weak side of the tornado, but correlated well with what we measured with CLOVER. We'll likely be presenting the radar data soon, so stay tuned!
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