Final Report (Exerpts)
Yucca Ridge Operations for the SPRITES'96 Campaign
prepared by Walter A. Lyons

FMA Research, Inc.
46050 Weld County Road 13
Fort Collins, CO 80524

Voice: 970-568-7664
Fax: 970-482-8627
Email: Walter A. Lyons
30 September 1996

EXECUTIVE SUMMARY

The SPRITES'96 Campaign was conducted from the Yucca Ridge Field Station between 1 July and 10 August 1996. The first four days were devoted to equipment set up and testing. Actual data acquisition began on 4 July 1996. Over a 38 night period, operations were conducted on 27 nights, with sprites and elves being detected from 26 storm systems over 20 nights. A total of 1127 transient luminous events were recorded. Of these 92% were sprites, 8% were elves, and no blue jets were noted. An average of 56 events were logged for each active night, ranging from 2 to 180 events. Three nights had more than 100 events. The majority of the sprites were imaged within 600 km of YRFS.

Logistical support was provided to up to 50 scientists and technical staff from 16 participating organizations representing the United States, Japan and New Zealand. Nightly forecasts and sensor orientation guidance were provided. Some nights had as many as 12 low-light television systems in three states trained on specific target areas above mesoscale convective systems. In addition to the on-site participants, FMA Research coordinated with off-site team members including the University of Alaska (Jelm Mountain, WY), the Stanford University STAR Lab mobile VAN, the PL radar site (LaSalle, CO), New Mexico Institute of Mines & Technology (Socorro, NM). Coordination with space craft missions included the Space Shuttle (non flown) and OTD (NASA Marshall), CGRO (Los Alamos) and several military assets.

FMA Research obtained 224 hours of GPS-time stamped, low-light television video with VLF audio and running voice commentary. Real-time NLDN lightning display, real-time radar and GOES satellite imagery and supporting meteorological data were available as well as compiled in an archive. A final CD-ROM compilation of all CG flash data for the United States for the 1996 summer was provided. A large library of supporting meteorological data has also been obtained for use in future analyses. Daily sprite forecasts continued to validate the general criteria established during past sprite campaigns. All 27 storms for which sprites/elves were predicted produced events. A newly dedicated "sprite observatory" included a large, permanent viewing deck with suitable power and raceways to feed cables to computers and equipment in the laboratory space below.




SPRITES'96 ROSTER OF PARTICIPANTS

FMA RESEARCH (aka ASTeR)
Logistics, forecasting, LLTV, Photometry (blue), VLF and ELF

UNIVERSITY OF ALASKA/GEOPHYSICAL INSTITUTE
Red and blue spectrometers, LLTV (YRFS/Jelm, WY)

STANFORD UNIVERSITY/STAR LAB
Fly's Eye, LLTV, VLF broad band, HAIL

UTAH STATE UNIVERSITY/SPACE DYNAMICS LABS
MISSION RESEARCH CORPORATION
CCD imagers, ISIT cameras, 4872 and 3390 µm Photometers

ASAF PHILIPS LAB
28 mHz radar, LLTV

MASSACHUSETTS INSTITUTE OF TECHNOLOGY
ELF Schumann Resonance Q-Bursts

UC-BERKELEY/LOCKHEED MARTIN
Spectrometers, LLTVs (broad band, 3914 µm)

TOHOKU UNIVERSITY
Multi-channel photometer, Fast Imager, LLTV, ELF

UNIVERSITY OF OTAGO
Photometer (red), ELF, VLF OMNIPal

LOS ALAMOS NATIONAL LABORATORY
LLTV (white and blue), Photometry (4278 µm)

GODDARD SPACE FLIGHT CENTER
ELF/VLF sampling

NEW MEXICO TECH
Fast VLF sampling, LLTV

SANDIA
NASA MARSHALL
AFTAC
Coordination with space assets


CONTACT INFORMATION FOR PARTICIPANTS

FMA Research, Inc. (formerly *ASTeR, Inc.)
46050 Weld County Road 13
Ft. Collins, CO 80522
970-568-7664

Please inform us Tom or Walt if there are any errors in this information and/or you wish to provide additional information.

DIRECT PARTICIPANTS (ON SITE)

FMA Research, Inc.
Participants: Walt Lyons, Tom Nelson, Liv Lyons
Yucca Ridge Field Station
46050 Weld County Road 13
Ft. Collins, CO 80524
970-568-7664 voice
970-482-8627 fax
tnelson@frii.com
walyons@frii.com

Mission Research Corporation
Participants: Russ Armstrong
One Tara Blvd., Suite 302
Nashua, NH 03062-2801
603-891-0070 x203 voice
603-891-0088 fax
rarmstrong@mrcnh.com

Geophysical Institute, University of Alaska-Fairbanks
Participants: Gene Wescott, Matt Heavnver, Jim Desrochers, Dana Moudry
903 Koyukuk Drive
PO Box 7320
Fairbanks, AK 99775-7320
907-474-7576 [EW] voice
907-474-5868 [MH]
907-474-7741 [DH]
907-474-7920 fax
dsentman@gi.alaska.edu
rocket@giuaf.gi.alaska.edu [EW]

STAR Lab, Stanford University
Participants: Umran Inan, Steve Reising, Tim Bell, Bill Trabucco, Sean Hansen, Mike Johnson
Durand 321, MC-4055
Stanford University
Stanford CA 94305
415-723-4994 [UI] voice(UI)
415-723-1461 [BT]
415-723-9251 fax
inan@nova.stanford.edu
scr@nova.stanford.edu
trabucco@nova.stanford.edu
bell@nova.stanford.edu

Utah State University
Participants: Michael Taylor, Steve Clark
Space Dynamics Laboratory
Logan, Utah 84322-4145
801-797-3919 [MT] voice
801-797-4044 fax
taylor@psi.sci.sdl.usu.edu

Tohoku University
Participants: Yukihiro Takahashi, Manabu Fujito, Yoshiaki Watanabe, Hiroshi Fukunishi, K. Sakanoi
Dept. of Astrophysics & Geophysics
Aramaki-Aoba, Sendai 980-77, Japan
011+81 22 217 6734 [HF] voice
011+91 22 217 6739 fax
fuku@stpp2.geophys.tohoku.ac.jp
yukihiro@stpp2.geophys.tohoku.ac.jp

University of Otago
Participant: Richard L. Dowden, James Brundell
Department of Physics
PO Box 56
Dunedin, New Zealand
011+64 03 479 7752 voice
011+64 03 479 0964 fax
dowden@newton.otago.ac.nz
james@physics.otago.ac.nz

Lockheed Space and Missile
Participant: Rick Rairden
Dept. 91-20, Building 252
3251 Hanover Street
Palo Alto, CA 94304
415-424-3282 voice
415-424-3333 fax
rairden@lockhd.space.lockheed.com

University of California - Berkeley
Participants: Stephen Mende, Matt Wilcox, Lun Tsuei
Space Science Lab
Centenial Drive at Grizzly Peak
Berkely, CA 94720
510-845-2814 [LT] voice
510-642-0876 [SM]
510-643-8302 fax
mende@ssl.berkeley.edu
ltsuei@euler.berkely.edu

Los Alamos National Laboratory
Participant: Dave Suszcynsky, Susan Voss, Robert Roussell-Dupre, Hal Dehaven,Eugene Symbalisty
Space & Atmospheric Sciences Group
LANL, NIS-1
MS D466
Los Alamos, NM 87545
505-665-3119 [SD] voice
505-665-5520 [SV]
505-667-9670 [ES]
505-667-7613 [HD]
505-667-9228 [RRD]
505-665-7395 [DS,SV,ES,RRD] fax
rroussell-dupre@lanl.gov
svoss@lanl.gov
dsuszcynsky@lanl.gov
hdehaven@lanl.gov

Sandia National Lab
Emily Glass, Duane Landa (MS 0872)
Sandia National Lab
PO Box 5800
Org. 5725 MS 0980
Albuquerque, NM 87185-0980
505-844-1433 [EG] voice
505-844-2057 [EG] fax
eaglass@sandia.gov
dalanda@sandia.gov

NASA Goddard Space Flight Center
Bill Farrell, Jeff Houser
NASA/GSFC, Lab for Extraterrestrial Physics
MC 695
Greenbelt, MD 20771
301-286-4446 [WF] voice
301-286-1527 [JH]
301-286-1683 [WF] fax
301-286-3271 [JH] fax
farrell@lepnmf.gsrfc.nasa.gov
jeff.houser@gsfc.nasa.gov

DIRECT PARTICIPANTS (OFFSITE)

USAF/Phillips Lab
Dr. Laila Jeong, W.A.M. Blumberg
PL/GPOS, 29 Randolph Street
Hanscom AFB, MA 01731
617-377-3671 [LJ] voice
617-377-3688 [WB]
617-377-8900 [LJ] fax
jeong@plh.af.mil

Phillips Laboratory
Participants: Keith Groves, Jake Quinn, Matt Cox
29 Randolph Street
Hanscom AFB, MA 01731
617-377-xxxx [KG] voice
617-377-8900 fax
groves@plh.af.mil
blumberg@plh.af.mil

Massachusetts Institute of Technology
Participants: Earle Williams
Lincoln Lab
SI-661
244 Wood Street
Lexington, MA 02173-9108
617-253-2459 [MIT] voice
617-253-6208 [MIT] fax
617-981-3744 [LL] voice
617-981-0632 [LL] fax
401-397-8982 [RI site] voice
earlew@juliet.ll.mit.edu

NM Inst. of Mining & Technology
Paul R. Krehbiel, Marx Brook, Mark Stanley, William Rison
Physics Department
Socorro, NM 87801
505-835-5215 [PK] voice
505-835-5707 fax
505-835-5486 [WR]
krehbiel@opus.nmt.edu

NASA Marshall
Participant: Otha H. Vaughan, Jr.,Dennis Boccippio
Global Hydrology & Climate Center
977 Explorer Blvd.
Hunstville, AL 35812
205-922-5893 [OV] voice
205-922-5909 [DB]
205-922-5723 [OV] fax
205-423-3333 [DB] fax
skeet@sferic.msfc.nasa.gov
djboccip@cirrus.mit.edu

NASA Marshall Space Flight Center
Participant: Jerry Fishman, Burl Peterson
Astrophysics Division/Space Science Lab
Code ES81
Hunstville, AL 3581
205-544-7691 voice
205-544-5800 [BP] fax
205-544-7754 fax
Jerry.Fishman@msfc.nasa.gov
peterson@ssl.msfc.nasa.gov





SPRITES'96 FMA RESEARCH ACTIVITIES

SPRITES'96 Activities at Yucca Ridge Colorado

Number Unit Description
224 Hours Sprite/Elve Video Tape Monitoring
10 Hours Project Documentation Video
1127+ Events Sprites and Elves Captured
558 Files Digital Photometer and RF Samples
1940 Images GOES and Radar Images Captured
346 Maps NLDN Real-time Data Plots
1.87 GBy CD-ROM of NLDN Data
38 Nights Length of Program
27 Nights Full Operations
20 Nights With Sprites/Elves



SPRITES'96 SUMMARY OF EVENTS

Preliminary data on individual dates may be obtained by clicking on the date below.

SPRITES'96 DAILY SUMMARY OF EVENTS

Julian UTC Date Total TLE's Sprites % Sprites Elves % Elves
186 04JUL96 2 2 100 0 0
187 05JUL96 11 11 100 0 0
188 06JUL96 40 34 85 0 0
189 07JUL96 69 65 94 4 6
190 08JUL96 25 24 96 1 4
193 11JUL96 33 33 100 0 0
195 13JUL96 5 5 100 0 0
196 14JUL96 25* 25 100 ? ?
199 17JUL96 2 1 50 1 50
201 19JUL96 76* 72 95 4 5
202 20JUL96 3 3 100 0 0
203 21JUL96 147 133 90 14 10
204 22JUL96 75 69 92 6 8
206 24JUL96 180 164 91 16 9
208 26JUL96 2 2 100 0 0
214 01AUG96 105 95 90 10 10
217 04AUG96 84 72 86 12 14
218 05AUG97 79 71 90 8 10
220 07AUG96 70 62 89 8 11
223 10AUG96 94 91 97 3 3
  Totals 1127 1034 92 93 8

*NB:4 & 5 August - Average Peak Current: Sprites: 57 kA Elves: 80 kA





SPRITES'96 SUMMARY OF OPERATIONS

DAILY OPERATIONS SUMMARY - SPRITES'96 YRFS

JD D/D UTC Date Operations Fcst Observed Notes
183 S/M 01JUL96 None n/a n/a Set Up Day 1
184 M/T 02JUL96 None n/a n/a Set Up Day 2
185 T/W 03JUL96 None n/a n/a Set Up Day 3
186 W/T 04JUL96 Test/Dry Runs Psbl 2 Set Up Day 4; worked SD and NE/KS
187 T/F 05JUL96 Test Runs Yes 11 Test Runs; small MSC 200-300 km ESE
of YRFS in full moonlight
188 F/S 06JUL96 Yes Y/Y 40 Worked 2 Storms; Sprites in NE and
Sprites/Elves in SD
189 S/S 07JUL96 Yes Y 69 MCS forms over YRFS, moves into KS;
Excellent viewing
190 S/M 08JUL96 Yes Y 25 Two huge MCS merged into MCC;
best viewing blocked by low clouds
191 M/T 09JUL96 None n/a n/a Low clouds, lack of convection
in the sprite region
192 T/W 10JUL96 None n/a n/a Low clouds, lack of convection
in the sprite region
193 W/T 11JUL96 Yes Yes 33 Watched frontal storms in SD and ND;
haze limited viewing early on
194 T/F 12JUL96 None n/a n/a No targets anywhere in domain;
watched Bertha from satellites
195 F/S 13JUL96 Yes Y 5 Small CO nearfield cells blocked view
of most sprites in KS cells
196 S/S 14JUL96 Yes Y 25/clds Major sprite storms to east;
Svr wx at YRFS, Jelm sees sprites late
197 S/M 15JUL96 None n/a n/a Clear skies but no targets anywhere
within range
198 M/T 16JUL96 Yes Y clouds Major sprites in KS-clouds block view
-excellent RF coverage
199 T/W 17JUL96 Yes Y 2+(clds) Overhead t-storms block viewing
until late; see events near Omaha
200 W/T 18JUL96 Yes Y clds Storms too far away or blocked by clouds
201 T/F 19JUL96 Yes Y/Y 55/21+ Small storm NE Colorado many sprites;
TX storm sprites for NM and WY
202 S/F 20JUL96 Yes Y 3+(clds) Active MCS in Kansas & Nebraska;
most activity obscured by clouds
203 S/S 21JUL96 Yes Y/N 147/0 MCS with S/E under ideal viewing in SD;
good null cases in Colorado
204 S/M 22JUL96 Yes Y 75 Large MCS in KS produces steady stream
of sprites/elves;excellent viewing
205 M/T 23JUL96 Short Y clds/WY Active cells in SW CO produce sprites;
clouds at YRFS, WY sees some
206 T/W 24JUL96 Yes Y 180 Banner Night: Huge MCS in TX/OK;
lg sprites;blue seen in tendrils
207 W/T 25JUL96 None Y Clouds Only storms in NM;
Alaska saw their sprites from WY
208 T/F 26JUL96 Yes Y 2?/clds Storms in KS, NM and WY likely sprites;
clouded in, maybe saw two early
209 F/S 27JUL96 Yes N N/clds Numerous small storms, WY, CO, NM;
most blocked by clds; many CFs
210 S/S 28JUL96 Yes N N/clds Several smaller systems, not likely
to sprite; null case in WY-NE
211 S/M 29JUL96 None n/a clouds Sprite-sized system in NW KS;
but dense low clouds prevent viewing
212 M/T 30JUL96 None n/a clouds Clouds continue to block view of
systems in plains
213 T/W 31JUL96 Yes N 0? Severe right-moving supercell
100-200 km out; no clear evidence of TLEs
214 W/T 01AUG96 Yes Y 105 Severe storms form into MCS in KS;
excellent viewing from YRFS and NM
215 T/F 02AUG96 None n/a clouds Targets obscured by near storms and low clouds
216 F/S 03AUG96 None n/a clouds Targets obscured by severe storm (70 mph)
and low clouds
217 S/S 04AUG96 Yes Y 84 Squall lines NW to NE with numerous
sprites; some visible to eye
218 S/M 05AUG96 Yes Y 79 Squall lines ESE thru NE; huge radar echo;
many close sprites;visible to eye
219 M/T 06AUG96 None n/a n/a Clouds block view of targets
220 T/W 07AUG96 Yes Y 70 Clouds break, view sprites at western
end of large squall line
221 W/T 08AUG96 Yes N 0 No storms close enough;
forest fire smoke limits visibility
222 T/F 09AUG96 None n/a n/a No targets in region
223 F/S 10AUG96 Yes Y 94 Squall line in western Nebraska