TungArt7 / Pixabay

New VONA structure and ICAO requirements (December 2025)

In 2025 a survey was conducted through SVOs to investigate their level of awareness on the ICAO legislation and their current operations for the issuance of VONA, the aviation colour code usage and, in general, their connections with VAACs and the aviation sector.

An online meeting is expected to be held on 3 December to discuss the new VONA structure and, more in general, the new requirements that ICAO has set in the latest version of the IAVW handbook. 

State Volcano Observatories, being the primary contributor to the IAVW functionality, are required to know the new recommended actions for preparing and implementing needed changes.

Paula Acethorp (CAA New Zealand) – as representative of the ICAO Met Panel – and Dave Schneider (USGS Alaska) – as SVO representative within IAVW and AG-VSA member – will present the novelties within the IAVW Handbook and also the standard procedure for ICAO information dissemination.

Some technical solutions currently implemented at USGS Volcano Observatories and New Zealand SVO will also be presented.

At the beginning of the meeting the results from the survey will be presented to provide a general context of knowledge and awareness of SVOs role within IAVW framework.

The meeting will be on MS Teams on Wednesday 3 December at two different times to accommodate a wide range of timezones:

  • 08.00 UTC  with Paula Acethorp and
  • 16:00 UTC with Dave Schneider

The agenda is the following:

  • Introduction and rationale of the meeting 
  • Survey results 
  • SVOs, IAVW and the VONA 
  • Experience at SVOs (USA and New Zealand) 
  • Questions and discussion

The recorded meeting will be available on WOVO’s website.

For more information about the Volcanic Ash and Aviation Hazards (VAAH) program, see VAAH – Volcanic Ash and Aviation Hazards.

Contact: Sara Barsotti (VAAH lead)

More News

WOVOdat: A volcano monitoring database

WOVOdat: A volcano monitoring databaseA free one-day COV8 pre-meeting workshop Date of Event:8 September 2014 (08:00-16:30) Venue:Gadjah Mada University Club Hotel & ConventionJl. Pancasila No. 2 Bulaksumur, Kampus UGMYogyakarta – IndonesiaPhone. 0274 563461Fax. 0274 563461www.ugmclub.com WOVOdat is the World Organization…


read more

Announcement of WOVOdat pre-meeting workshop

WOVOdat: A volcano monitoring database One day COV8 pre-meeting workshop (8 September 2014) Registration is already open! For registration, please contact Christina: cwidiwijayanti@ntu.edu.sgMore information about WOVOdat: http://www.wovodat.org/More information about COV8: http://citiesonvolcanoes8.com/ COV8 Abstract submission deadline: 14 April 2014COV8 Early registration deadline: 31 May…


read more

WOVO meeting 10 September 2014

WOVO meetingAn evening meeting during COV8 including dinner. Date of event:10 September 2014 (18:00-22:00) Venue:Gadjah Mada University Club Hotel & ConventionJl. Pancasila No. 2 Bulaksumur, Kampus UGMYogyakarta – IndonesiaPhone. 0274 563461Fax. 0274 563461www.ugmclub.com Volcano Observatory representatives and other people with…


read more

A new phase for WOVO

After years of discussion, we are pleased to announce that the World Organisation of Volcano Observatories (WOVO) has been designated as a IAVCEI Network. The recently formed secretarial team includes Nobuo Geshi, Kyushu Uni, Alvaro Amigo and Alessandro Bonforte, with…


read more

WOVO’s response to L’Aquila

Dear Colleagues, As you may know IAVCEI through its president Prof. Ray Cas provided a response to the convictions of the scientists and administrator working for Italian National Risks Commission who were charged with criminal negligence after the major earthquake…


read more

Global Volcano Model website

WOVO would like to announce the Global Volcano model website – http://www.globalvolcanomodel.org/ “GVM is a growing international network that aims to create a sustainable, accessible information platform on volcanic hazard and risk. GVM will provide systematic evidence, data and analysis of…


read more

2nd Ash Workshop

To all, We are very happy to announce the second IUGG-WMO workshop on “Ash dispersal forecast and civil aviation” that will take place at the Geneva headquarters of the World Meteorological Organization on 18-20 November 2013. Our preliminary website is…


read more