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About ICAO
  • Overview
  • Strategic Plan 2026-2050
  • Latest News and Highlights
  • FAQs
  • List - ICAO Member States
  • ICAO Museum
  • ICAO Carbon Calculator
  • Report Misconduct
  • Contact ICAO
Diplomatic Bodies
  • ICAO Assembly (193 States)
  • Sessions of the Assembly
  • Resolutions in Force
  • ICAO Council (36 States)
  • President of the Council
  • Sessions of the Council
  • Council State Representatives
  • Air Navigation Commission
ICAO Secretariat
  • Secretary General
  • Air Navigation Bureau
  • Air Transport Bureau
  • Capacity Development and Implementation Bureau
  • Legal Affairs and External Relations Bureau
  • Administration Bureau
  • Regional Offices
Global Priorities
Strategic Goals
  • Every Flight is Safe and Secure
  • Aviation is Environmentally Sustainable
  • • CORSIA
  • • State Action Plans for Aviation CO2 Reduction
  • • Finvest Hub
  • Seamless, Accessible, and Reliable Mobility
  • No Country Left Behind
  • • Capacity Development and Implementation Support
  • Comprehensive Legal Framework
  • Economic Development
Enablers
  • ICAO Continuous Improvement
  • Innovation in Aviation
  • Next Generation Aviation Professionals
  • Gender Equality
  • ICAO Global Ambassadors Programme
  • ICAO Training
  • Partnerships and Resource Mobilization
Events
Featured Events
  • 2026 ICAO Air Law Treaty Workshop Tanzania (Third Edition)
  • ICAO/AWG Joint Regional Workshop on Cross-Border Transferability of Aircraft (XBT) and Compliance with the Cape Town Convention (CTC)
  • ICAO Global Implementation Support Symposium 2026
  • Fourteenth Meeting of the Facilitation Panel (FALP/14)
  • View the Full List of Coming and Past meetings and Events
  • Host your event at ICAO
Resources
Resources
  • ICAO E-Library
  • Publications
  • Annual Reports of the Council
  • Safety Audit Results - Interactive
  • Aviation Benefits Report
  • Economic Facts and Figures
  • Global Aviation Safety Plan
  • Safety Reports
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  • Air Navigation Reports
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  • ICAO API Data Service
  • ICAO Data+
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  2. Meteorology Panel - QVA Workshop 2024
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MET Workshops & Events
  • QVA Workshop (November 2024)
  • SWX User Workshop (Oct 2025)
  • SADIS Survery 2025

Quantitative volcanic ash (QVA) workshop

Date31 October 2024
LocationParis, France
VenueICAO European and North Atlantic (EUR/NAT) Office
 
The primary objectives of this workshop
  • To share with the aviation industry the current status of implementation of the ICAO quantitative volcanic ash (QVA) concentration information service.
  • To facilitate users, regulators, and other interested parties, to understand the benefits and uncertainties inherent in the data provision, to support intelligence-led, risk-based application of policies and procedures.
  • To give an opportunity to share existing draft education and guidance material and for all stakeholders to articulate their requirements for further material to assist in the utilisation and oversight of the QVA concentration information service.
Workshop documentation
  • Summary of proceedings of QVA Workshop 2024 -> link
Presentations
1
Rory Clarkson (Rolls-Royce Aerospace)
QVA Workshop 2024 Summary of Proceedings
2
FLIGHTKEYS
DUST ECONOMICS - Cost-based approach to flight operation in contaminated air 
3
Klaus Seivers (IFALPA) 
Fulfilling Pilots' Associations Requirements
4
Dr. Frances Beckett, Dr. Matthew Hort (UKMO)
Quantitative Volcanic Ash - A new operating requirement, London VAAC Case Study
5
Dr. Jarrad Denman (Australian Bureau of Meteorology)
Proposed VAAC forecaster workflow for QVA Issuance
6
Karen Shorey (VAAC London) 
Accessing QVA Data
7
VAAC Toulouse
A first familiarization with QVA during a VOLCEX over EURNAT
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