ROTATE-2003
:
IHOP took place in 2002, so there was no ROTATE program that year
ROTATE-2001:
ROTATE-2000:
ROTATE-99:
April-June 1999:
ROTATE-98
began on 26 April 1998 and ended on about 16 June 1998.
4 tornadoes were intercepted. There is a
Spencer tornado page
describing this violent F-4 vortex Dual-Doppler was collected in one,
possibly two tornadoes and
ultra-fine resolution data
(3x3x38m) was collected as a tornado passed within 170 m of one DOW.
Some preliminary images can be found on the
ROTATE-98 Page
The
study region
includes Oklahoma, Texas, New Mexico, Kansas and Nebraska. Preferred
regions are western Oklahoma, the southwestern panhandle of Texas, and western
Kansas due to the flat, treeless conditions, and good road networks.
Dual-DOW observations will permit the synthesis of vector windfields
in tornadic and pre-tornadic storms at scales of 60-200 m (200-600 ft),
over regions of 40-200 square kilometers (20-100 square miles. Single
Doppler observations will occur at scales of 10-40 m (100 ft). Rapid
update cycles of 30-70 seconds will permit rapidly evolving phenomena to
be studied.
Missions will leave from the Univesity of Oklahoma's School of Meteorology.
The two DOWs will be accompanied by a support vehicle. Each DOW carries
3 researchers (a driver, a navigator, a radar operator) led by
Joshua Wurman .
DOW deployment strategies focus on establishing a dual-Doppler lobe
over the hook echo, rear-flank-downdraft region, and the tornado itself.
Two main options are illustrated schematically below. If the storm
passes overhead during the AHEAD option, the radars will scan the hook and
rear-flank-downdraft region from behind.
DOW Home Page
ROTATE-99 Daily Status and Summary Page
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