Author Topic: Tornadoes Pressure data from the Dominator! Cannon probe video  (Read 3895 times)

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Pressure data from the Dominator!  Cannon probe video
         




Check out this plot of pressure from the Dominator during the May 24, 2010 tornado intercept in westen SD.  The barometric pressure sensor on the Hyperion  probe attached to the back window of the Dominator recorded a 8.7 hPa pressure drop over 22 seconds during the intercept on  Monday afternoon when we were about 50m from the tornado at the very closest.  The pressure fell from 912.1  hPa (at 20:00:35 UTC) to 903.4 hPa (at 20:00:57 UTC) and recovered to  912.1 hPa (at 20:01:42 UTC).  It would have been insane to have this probe on the Dom during the Aurora tornado last year when our ears were popping...  I have a feeling it may have been an order of magnitude greater.  We also shot 9 parachute probes into this tornado as we were in the inflow to the east of the funnel on a dirt road, and recovered 5 of them after the tornado disspated.  We're still analyzing the data from the parachute probes with Hyperion Technology Group, and are making some improvements to the probes to help track them down from a longer range, which is especially important for the long-track tornadoes when the parachute probes could be carried for miles.  The video from this intercept in Meade Co., SD is below.. Notice the elephant-like noise made by the cannons at launch!










 
         

http://www.tornadovideos.net/component/content/article/1-latest-news/1223-pressure-data-from-the-dominator-cannon-probe-video
         
« Last Edit: 09 June 2010, 02:35:26 AM by Michael Bath »