Audiovisual Test in Progress

Milton Garcés1, Claus Hetzer1, Douglas Drob2, Robert Woodward3, Henry Bass4, David McCormack5, Läslo Evers6, Michael Hedlin7, Ludwik Liszka8, John Olson9, and Charles Wilson9

 University of Hawaii, Manoa1, Naval Research Laboratory2, Center for Monitoring Research3, University of Mississippi4, Geological Observatory of Canada5, Royal Netherlands Meteorological Institute6, University of California, San Diego7, Swedish Institute of Space Physics8, University of Alaska, Fairbanks9

PROGRESS IN THE DEVELOPMENT OF A GROUND TRUTH DATABASE OF INFRASONIC EVENTS

2002 Infrasound Technology Workshop, Netherlands

CD Contents

• Starts with the subset of the Center for Monitoring Research (CMR) Ground-Truth Database corresponding to recent infrasonic events detected by two or more arrays

• Additional metadata as well as events known to have been recorded by more than one infrasonic array

• Global climatological grids supplied by NRL

• Open-source Tau9.1 Matlab software to read grids and trace rays

• Detector comparisons

• Relevant papers

Events List: CSS SchemaDate Type of Event Lat Lon Time (UT) Comment Stations Notes Grid

11/19/1997 Explosion 33.62 -106.48 18:0020,000-lb C4

explosion, White Sands Missile Range

DLIAR, LSAR, TXIAR

  No

5/22/1999 Rocket 34.70 -120.60 9:36Air Force Titan 4B from Vandenburg

DLIAR, SGAR   No

12/18/1999 Rocket 34.70 120.60 18:57Lockheed Martin Atlas 2AS from Vandenburg

DLIAR, SGAR   Yes

2/26/2000 Volcano 63.98 -19.70 18:19 Hekla eruptionIRF, BORG

(BORG seismic)Loc/Time from Volcano World

Yes

8/25/2000 Bolide 14.45 -106.13 1:12:25 Acapulco FireballDLIAR, IS59,

IS53  Yes

10/11/2000 Rocket 28.49 -80.58 23:17Space Shuttle

Discovery from Kennedy

DLIAR, IS10 (IS10 unreadable due to database

error)

  Yes

4/23/2001 Bolide 29.90 -133.89 6:12 April 23 Bolide

DLIAR, IS10, IS26, IS53, IS57,

IS59, NVIAR, SGAR

  Yes

7/24/2001 Volcano 37.70 15.00 ongoing Etna eruptionIS26, ESLA, DIA (ESLA seismic)

IS26: 7/24 22:00-7/26 08:00, DIA: 7/29 06:43-06:50

Yes

9/21/2001 Explosion 43.62 1.37 8:17:57Toulouse chemical factory explosion

IS26   Yes

10/27/2001 Bolide 52.90 2.90 19:20 North Sea Bolide DIA, IRFLoc/Time from

Laslo Evers (infrasonic)

Yes

4/6/2002 Bolide 47.47 11.11 20:21:02 Bavaria bolide IS26Loc/Time from Brachet (PC)

Pending

6/5/2002 Rocket 28.49 -80.58 21:22:49Space Shuttle

Endeavour from Kennedy

IS10, DLIAR   Pending

9/28/2002 Explosion 37.1 -116.1 21:2536608-lb explosion at

Nevada Test SiteDLIAR, SGAR,

NVIARLoc/Time from Whitaker (PC)

Pending

Event Metadata

9/28/2002 SGAR 21:37:53 274.71 0.3581 0.0287 0.6591 21:38:18 80DLIAR 22:13:43 281.41 0.3491 0.0771 0.4276 22:14:08 138NVIAR 21:39:22 125.46 0.3431 0.1483 0.3046 21:39:47 13

File benchmark pmcc results, explosion

Wind structure for the great circle path from April 23 source to IS59, Hawaii

Wind structure for the great circle path from April 23 source to IS53, Alaska

Global Grids

Tau9.1, with User’s Manual

Detector Comparisons (image files)

PMCC, some FK, Infratool

Many thanks to all contributors!