World meteorological organization commission for basic systems opag on dpfs




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WORLD METEOROLOGICAL ORGANIZATION

COMMISSION FOR BASIC SYSTEMS
OPAG on DPFS


Meeting of the Expert Task Team to review the WMO Technical Note 170
Geneva, Switzerland, 12-14 February 2013





CBS-DPFS/ET-Review-TN170/Doc. 3(1)
(29.I.2013)

_______
Agenda item : 3


ENGLISH ONLY





3. Introduction and Background

(Submitted by Secretariat)
Summary and purpose of document

This document provides information from conclusions of WMO Constituent Bodies, relevant to the revision of TN No. 170



Action Proposed

The meeting is invited to…



Introduction and background

The following information is a summary of the developments leading to the organization of the current work.



1. EC-58 (2006)

- first raised by EC member(s)


3.1.1.7 The Council recognized the concern that there may be outdated information contained in WMO Technical Note No. 170 entitled “Meteorological and Hydrological Aspects of Siting and Operation of Nuclear Power Plants” (1985), used as a guide for NMHSs for solving problems related to safety aspects of nuclear power plants, including siting, operations and emergency response. The Council therefore requested the Secretary-General to develop a strategy for addressing this issue, including to seek the cooperation of International Atomic Energy Agency (IAEA).

2. World Meteorological Congress, 15th session (2007)
3.1.3.24 Congress noted that many countries today have started or are exploring the possibility of renewing their nuclear energy programmes and therefore it would be wise for WMO and NMHSs to be better prepared to provide guidance on meteorological and hydrological aspects of planning, siting, and operating nuclear power plants. It was noted that the WMO Technical Note, entitled: “Meteorological and Hydrological Aspects of Siting and Operations of Nuclear Power Plants” (WMO Tech. Note No. 170) is outdated and incomplete, since it was completed before the 1986 Chernobyl NPP accident. Congress noted that this is a matter that would require the cooperation with the International Atomic Energy Agency (IAEA), and requested the Secretary-General to correspond with the IAEA. Congress also noted that several Technical Commissions could be involved in the updating of this technical document.

3. Exchange of letters with IAEA, initiated by WMO (2007)

4. Review of IAEA Safety Guides (2008 – 2009)

- review of IAEA Safety Guides: “Meteorological events in site evaluation” (NS-G-3.4, 2003), and hydrological aspects: “Flood hazard for nuclear power plants on coastal and river sites” (NS-G.3.5, 2003).

- IAEA consultancy meetings and drafting with WMO participation (P. Chen, P. Bessemoulin)

- published IAEA SSG-18 “Meteorological and Hydrological Hazards in Site Evaluation for Nuclear Installations” (jointly sponsored with WMO, 2011)

- insufficient resources to tackle review of WMO TN No.170

(Great East-Japan Earthquake and Tsunami, and Fukushima Daiichi NPP accident (2011))

5. World Meteorological Congress, 16th session (2011)
3.1.3.25 Congress noted the successful collaboration with the IAEA on the development of a new IAEA Safety Guide, entitled: “Meteorological and Hydrological Hazards in Site Evaluation of Nuclear Installations”, which represented an important first step to the review requested by Cg-XV of the outdated WMO Technical Note 170, entitled: “Meteorological and Hydrological Aspects of Siting and Operations of Nuclear Power Plants”. This Safety Guide will act as an important guide to essential subject areas where technical methods and best practices should be updated in the revision of the WMO Technical Note. Congress also noted that several programmes and technical commissions should be involved in updating the Technical Note, and encouraged Members to consider nominating suitable experts to carry out this work.
6. CBS Coordination Group on Nuclear Emergency Response Activities (2011)

- reviewed sections of TN No. 170 relevant to CBS (see Doc. 3(2) )


7. Commission for Basic Systems, 15th session (2012)

4.4.4.8 The Commission noted that following the request by Cg-XV with regards to the outdated WMO Technical Note 170, entitled: “Meteorological and Hydrological Aspects of Siting and Operations of Nuclear Power Plants”, the OPAG on DPFS reviewed this publication and noted that only a few sections concern CBS, and several WMO Programmes and Technical Commissions should be involved in updating the Technical Note. Following a throughout review of the CBS-relevant sections, a proposed expanded outline for updating these sections was developed. The Commission urged the OPAG on DPFS, in collaboration with the relevant WMO Programmes and Technical Commissions to complete the revision of this publication as required.



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