Asst. Director/Organizer/Field Coordinator for Verification of the Origin
of Rotation in Tornadoes Experiment (VORTEX) field program -1994/1995.
(with VORTEX
director Dr. E. Rasmussen at NSSL).
-Co-Directed, organized, and planned the VORTEX field program
(with Dr. E.
Rasmussen). Co-principle forecaster for VORTEX field program.
-Wrote and lead numerous proposals for VORTEX base funding, aircraft
(T-28)
and CLASS facilities, ARM collaboration, and NWS involvement
-Developed and constructed the new Mobile Mesonet (with
Dr. E. Rasmussen),
Instrument packages deployed in tornadoes (with Dr. E. Rasmussen),
and
the new mobile X-band pulsed Doppler radar (with Drs. J. Wurman
and E.
Rasmussen). Wrote and lead the proposals to support these
projects.
-Obtained the first pulsed-Doppler radar and detailed surface
weather observations
of tornadoes within 3 km distance (with Drs. J. Wurman and
E. Rasmussen).
-Participated in planning the Center for Analysis and Prediction
of Storms (CAPS)
storm-scale numerical weather prediction effort.
-Lead the VORTEX-1995 NSF/NOAA sponsored Research Experience
for
Undergraduates (REU) program (with Dr. W. Beasley). Wrote
the
proposal to NSF (with Beasley)
Co-Organizer/Coordinator for Radar-Hydrometeor Verification I and II
field programs with the Cimarron Radar (1994-1995, with Dr.
D. Zrnic' at NSSL).
-Wrote successful T-28 research aircraft proposals in 1994 and
1995
Co-Organizer for Radar-Hydrometeor Verification with CSU/CHILL field
program (1995; with Drs. D. Zrnic' at NSSL and S. Rutledge and
Bringi at CSU).
-Wrote successful T-28 research aircraft proposal in 1995
Modest collaboration with SCMS field program through University of Oklahoma
Ph.D.
student Ms. Sonia Lasher-Trapp and Dr. Charles Knight at NCAR.
Obtained funding from NSF to support Ms. Lasher-Trapp.
This work is on the
onset of coalescence in cumulus using observations from SCUM
and my
numerical model.
Studying tornado and tornadic storm formation, maintenance, and dissipation
hypotheses
using VORTEX data including information from mobile mesonet,
rawinsonde,
stationary, mobile pulsed Doppler radar, and airborne Doppler
radar.
-co-wrote new proposal to NSF to support post-field phase research.
Developed the first fuzzy-logic based hydrometeor identification and
quantification
algorithm using multiparameter radar data. Ongoing evaluation
based on cloud/radar model results (with Dr. Vivekandan at NCAR)
as well as actual radar) using in-situ aircraft measurements (with
Dr. Zrnic' at NSSL). The purpose of this
research is to learn more about precipitation processes, improve
and verify microphysical parameterizations, and initialize moisture
variables in storm-scale numerical weather prediction models with
radar data. The NWP work involves
investigating both forward and variational assimilation approaches.
Helped write and plan the Center for Analysis and Prediction of Storms
(CAPS) renewal proposal in 1994. Made numerous presentations
for the renewal process, as well as for the yearly NSF and
External Advisory Panel evaluations over the past four
years. I helped initiate the CAPS storm-scale prediction
effort.
Developed, over the past 7 years, a complete cloud/mesoscale model with
detailed
microphysics including number concentration, mixing ratio, and
numerous habits (including rain, snow crystals, snow aggregates,
three graupel density categories,
hail, and various ice crystal habits). As part of this
work I recently have developed
new methods that will help improve conversion parameterizations.
Modified my numerical model to include electrical charging mechanisms,
and a crude
lightning parameterization to study the effects of supercell
storm characteristics on
lightning flash type and rates (with Drs. MacGorman and Ziegler
at NSSL).
Involved with Drs. Lamb and Sasaki (OU) in developing possible research funding opportunities in regards to radar meteorology studies with Japan power companies. Two contracts, one for $20,000 and another for $7,500 have been obtained for this work.
Numerous visits to NCAR to Boulder, Colorado 1995 for scientific collaboration
Re-started atmosphere/sea coupled model effort in my model, 1995.
Organized invitation to speak to Governor of Oklahoma and media concerning
cloud
seeding effectiveness and methodology (March 20, 1996). Other
meetings with
congressmen and senators followed.
Numerous visits to NCAR to Boulder, Colorado 1996 for scientific collaboration
These visits included attending part of a astrophysics/meteorology
workshop
Numerous visits to NCAR at Boulder, Colorado 1997 for scientific collaboration
These visits included work with VORTEX data (with E.N. Rasmussen)
These visits included work to develop new microphysical techniques
(with E.N. Rasmussen)
Participated in small experiment in the Spring of 1997 to study boundaries
of storms
forming in environments with strong storm relative helicity (Rasmussen,
Straka,
and Markowski)
Participated and funded 60% (OU Weather Center funded remaining 40%)
of program sub-
VORTEX during 6 week period in May and early June of 1997 to
continue our
studies of tornadic storms.. The first dual doppler data
with the mobile radars were
collected as well a data from other storms (collaborators included
E.N. Rasmussen,
R. Davies-Jones and J. Wurman).
Participation in CAPS site visit (November 1997)
Participation in planning meeting for first phase of major field program
designated as
Thunderstorm Initiation Mobile Experiment (TIMEX) Nov 17-18
1997
Participation in VORTEX workshop (1-3 December 1997) in Monterey, California
New experiments with lightning parameterization in my numerical model
were presented at
the Fall 1997 AGU meeting by D. MacGorman
Invited to visit JAMSTEC, Japanese Space Agency, and University of Tokyo
(2-8
February 1998) to give seminars on a) Microphysics paramertizations-
developments and challenges; b) Dual-polarimetric radar to identify
and quantify hydrometeors; c) Cloud intialization (fro Dr. F. Carr
and Ms. J Zhang); d) Coupled ocean/atmosphere models; e) cumulus parameterizations
and f) Tornadogenesis-a review and new concepts. I also went to help
work with IBM and the ARPS model.
Experiment to examine small scale variability of storm-relative helicity
(1997-1998) (Rasmussen, Straka, Markowski).
Experiment (Tornadogenesis and RFD studies) to examine RFD of tornadic
storms
(Rasmussen, Straka, Davies-Jones; May-June 1998).
TiMEX test (Spring 1998) (Rasmussen, Straka, Ziegler, Schneider)
MEaPERS (Spring 1998) (collaboration with Terry Schuur and Dusan Zrnic)
LPEX program initiation (collaboration with PI’s Knight and Weisman)
Ice Microphysics Initiative team member (July 9-10, 1998) at NCAR-Mesa
Lab.
Issues on observations, laboratory work, theory, and modeling of ice
microphysics, seeking funding, setting agenda for key problems, and
writing BAMS paper. Invited speaker.
Paper nominated for "paper of the year" at ERL (1998) (No co-author
was a federal
Employee so it didn’t qualify)
Hurricane at Landfall (HaL) Experiment 1999: Coordination of most
ground-observations
teams for the NOAA-Hurricane Research Division (HRD) for Hurricane
"Georges"
(September 1998)
Experiment (Tornadogenesis and RFD studies) to Examine RFD of Tornadic
Storms
and Drylines in 1999 (Rasmussen, Straka; May-June 1999)
Paper nominated for "paper of the year" at ERL for 1999 (Did not win
as no co-author was
a Federal Employee so it didn’t qualify)
Hurricane at Landfall (HaL) Experiment 1999: Coordination participant
of ground-
observations teams (collaboration with Doggett and Schroeder at TTU;
Rasmussen
at NSSL; Knupp at UAH) with the NOAA-Hurricane Research Division (HRD;
and
Marks, Houston, Black, Willoughby) for Hurricane "Dennis" (September
1999;
coordination with TTU / Clemson / HRD) and Hurricane "Floyd" (September
1999;
coordination and intercept with TTU / Clemson / UAH / HRD).
co-PI Severe Thunderstorm
Electrification and Precipitation studies: STEPS Spring 2000