Issue 14: April 2010

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In the latest issue of Spectrum, several world leaders reinforce the importance of the Comprehensive Nuclear-Test-Ban Treaty’s (CTBT) entry into force. President Jurelang Zedkaia of the Marshall Islands describes the legacy of nuclear weapon testing on his country and urges full global acceptance and ratification of the Treaty. Kanat Saudabayev, the Foreign Minister of Kazakhstan, summarizes the 13 years of cooperation between Kazakhstan and the CTBTO and his country’s strong support for the CTBT. The Foreign Minister of Australia, Stephen Smith, and the Foreign Minister of Mexico, Patricia Espinosa Cantellano, both reiterate the unwavering commitment of their respective countries to a CTBT in force and outline the different ways in which Australia and Mexico have supported the Treaty and the CTBTO over the years. Ambassador Stephen Ledogar, the U.S. chief negotiator of the CTBT, expands on a number of key issues from the Treaty’s negotiations, which continue to be relevant for today’s debate.

Spectrum 14 also covers a range of verification-related issues and some of the Treaty’s potential scientific applications. On-site inspection expert, John Walker, highlights the main lessons of the Integrated Field Exercise 2008, the largest ever on-site inspection exercise carried out by the CTBTO in Kazakhstan in September 2008. Data mining experts, Stuart Russell, Sheila Vaidya and Ronan Le Bras, describe different machine learning concepts. Flore Samaran, a specialist in bioacoustics and whale conservation, writes about the use of hydroacoustic data for monitoring large whales. And members of the CTBTO’s Public Information team, Peter Rickwood and Kirstie Gregorich Hansen, explain how developing countries benefit from the CTBTO’s capacity building activities.

Editorial 2 [PDF]
Treaty signatures and ratifications (as of 6 April 2010) 3 [PDF]
Quotes 4 [PDF]
It is time for the CTBTO to come into force
President Jurelang Zedkaia of the Marshall Islands
5 [PDF]
The CTBT: Helping to achieve a world without nuclear weapons
by Stephen Smith, Minister of Foreign Affairs of Australia
8 [PDF]
Thirteen years of cooperation with the CTBTO
by Kanat Saudabayev, Minister of Foreign Affairs of Kazakhstan
11 [PDF]
Our longstanding support for the CTBT
by Patricia Espinosa Cantellano, Secretary of Foreign Relations of Mexico
15 [PDF]
Ambassador Stephen Ledogar, U.S. chief negotiator of the CTBT
talks to Annika Thunborg, Head of Public Information at the CTBTO
18 [PDF]
Status of certified IMS facilities (as of 6 April 2010) 22 [PDF]
In memory of
Boris Kvok, Director of the On-site Inspection Division
23 [PDF]
Main lessons from the Integrated Field Exercise 2008
by John R. Walker
24 [PDF]
Reading the waves: How the CTBTO strengthens its monitoring system with knowledge
by Kirstie Gregorich Hansen
28 [PDF]
Putting down its digital feet: A CTBTO project offers Member States the keys to better use its knowledge
by Peter Rickwood
30 [PDF]
Machine learning for Comprehensive Nuclear-Test-Ban Treaty monitoring
by Stuart Russel, Sheila Vaidya and Ronan Le Bras
32 [PDF]
Using hydroacoustic stations to monitor large whales: A case study in the South West Indian Ocean
by Flore Samaran
36 [PDF]
Book reviews 40 [PDF]