infrasound calibration in the eastern mediterranean · 2011. 6. 29. · calibration explosion at...

9 June 2011International Data Centre

Presented at: Science and Technology 2011Vienna, 8-10 June 2011T5-O9

John Coyne, Jeffrey Given, Patrick Grenard, Georgios Haralabus, Julien Marty, Pierrick Mialle, David Brown and Lassina Zerbo

Presented by: John Coyne Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty OrganizationProvisional Technical SecretariatVienna, Austria

Infrasound Calibration in the Eastern Mediterranean


Outline

Introduction• Motivation• Previous work

What was done• Invitation to participate• Response from States• Deployments• Calibration explosion• Workshop• Preliminary observations

Follow up Actions


Introduction

Motivation• PTS has continuing interest in collaborative experiments in

its monitoring technologies• Controlled events are of special importance• Infrasound is still under development• Opportunity for infrasound capacity building

Previous work• Earlier event conducted in August 2009• Wind patterns favoured propagation to N and W• IDC detected the 2009 event with 2 IMS infrasound stations


August 2009 Experiment

I26DE

I62IT

I48TNExpected 97.9 degDetected98.7 deg

Expected 125.8 degDetected128.0 deg

Expected 131.8 degDetected134.3 deg

Calibration explosion at Sayarim, Aug 2009


What was done in 2010

PTS invited States to participate (May 2010)

Experiment planned for winter, when winds favour Eastern propagation

Many States responded (sites, people, equipment)


Participating Countries

Hosting Temporary Infrasound Array Providing EquipmentHosting non-IMS Infrasound Array Providing PersonnelHosting IMS Infrasound Array


Deployments – in the field


Deployments – gratitude for support


Workshop on Infrasound Experiment in Eastern Mediterranean – Eilat, Israel

A two day workshop 13 participants from 8 countries


Workshop on Infrasound Experiment in Eastern Mediterranean – Eilat, Israel

Visit to experiment site


10 ton Explosion 24 Jan 2011

As observed in Mongolia - IS34 - 6300

Qatar observations1,600 km

North Oman observations2,400 km

Regional deployments


Calibration Explosion


Infrasound Experiment – 100 tons

DetectingStationNon-detectingStation

Stratospheric winds (49 km altitude) at6:00 GMT26 January 2011 I34MN

I46RUI31KZ


Observations of 100 ton explosionat IMS Stations

26 Jan 2011

Infrasound Arrivals:Kazakhstan(I31KZ, 27°)

Russia(I46RU, 43°)

Mongolia(I34MN 57°)

Auxiliary SeismicArrivals: Israel

EIL, 0.34°MMAI, 3.06°

JordanASF 2.82°

I46RUI31KZ I34MN

I31KZ

I46RU I34MN


IDC Location: REB

•100 ton explosion in Eastern Mediterranean region 26 Jan 2011


Follow up Actions

Further analysis of results

Additional detail in posters (T5-P23, T5-P24 andT5-P31)

Additional findings will be presented at Infrasound Technology Workshop (autumn 2011)

Continue to seek collaboration with institutions for infrasound experiments


Thank you to all participants!

CTBTO

University of Mississippi

University of Alaska

US Army Research Lab

University of Firenze

Commissariat à l’Energie Atomique

Geological survey Department

Israel National Data Centre

Geophysical Institute of Israel

Institute of Earth Science

National Observatory of Athens

BGR

Natural Resource Authority

Mid-East Science Institute for

Security

Kuwait Institute for Scientific

Research

National Committee for Prohibition of

Weapons

Sultan Qaboos University

Centre d'Etudes et de Recherche de

Djibouti

Japan Weather Association

Oboukhov Institute of Atmospheric

Physics

infrasound calibration in the eastern mediterranean · 2011. 6. 29. · calibration explosion at...

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