Regional Activities in Hydrology

Decisions concerning the implementation of the regional activities are taken by the WMO Regional Associations at their four-yearly meetings. The six Regional Associations of WMO have each established a working group on hydrology (WGH), and a Regional Hydrological Adviser (RHA) represents his/her entire Region and authoritatively represents the regional hydrologic concerns, problems or expectations, particularly as based on regional consultations. At the national level, the Hydrological Adviser (HA) is the ambassador of WMO hydrology.

RA I - Africa

Current RA I Hydrological and Water Coordination Panel

Terms of reference for Hydrological and Water Coordination Panel (Resolution 3.2/1 (RA I-18) 2021) en - fr
Regional progress on Hydrological and Water Resources Services components (Resolution 4.1/3 (RA I-18(II)) 2021) en - fr

Virtual Forums

Second Hydrological Advisors Forum Region I - Africa, 29 January 2021
First Hydrological Advisors Forum Region I - Africa, 16 June 2020

Former Working Group on Hydrology

WMO RAI Working Group on Hydrology
Report of the eleventh session of the WMO RA I Working Group on Hydrology (WGH) 16 – 20 November 2015, Accra, Ghana

RA II - Asia

Current RA II Working structure in hydrology and Water Resources

Terms of reference for Coordination Panel on Hydrology and Water Resources (Resolution 3.2/1 (RA II-17) 2021) ar - ch - en - ru
Terms of reference for Substructure of Working Groups in RA II en
Regional priorities for hydrology and water resources in RA II (Resolution 6.1/3 (RA II-17(II)) 2021) ar - ch - en - ru
RA II Operating Plan (Resolution 6.5/1 (RAII-17(II)) 2021) ar - ch - en - ru

Virtual Forums

Fourth Hydrological Advisers Forum Region II - Asia, 29 March 2022
Third Hydrological Advisers Forum Region II - Asia, 30 November 2021
Second Hydrological Advisers Forum Region II - Asia, 26 March 2021
First Hydrological Advisers Forum Region II - Asia, 11 September 2020

Former Working Group on Hydrology

RA III - South America

Current RA III Working Group on Hydrology and Water Resources

Terms of reference (Resolution 1 (RA III-18) 2020) eng - esp
Regional hydrological priorities (Resolution 4 (RA III-18) 2020) eng - esp
Composition and information about the group

Current Developments

Virtual Forums

RA III Virtual Hydrology Forum
Hydrological Advisers Forums
- 4th Hydrological Advisers Forum Region III, 17 February 2022
- 3rd Hydrological Advisers Forum Region III, 26 August 2021
- Second Hydrological Advisers Forum Region III, 25 March 2021
- First Hydrological Advisers Forum Region III, 8 October 2020

Former Working Group on Hydrology

Segunda Reunión Conjunta de los Grupos de Trabajo de la AR-III: Hidrología (GT-HRH), Clima (GT-CL) e Infraestructura y Desarrollo Tecnológico (GT-IDT), 4-6 Octubre 2017, Asunción, Paraguay
Second joint meeting of the RA III Working Groups on Hydrology (WG-HWR), Climate (WG-CL) and Infrastructure and Technological Development (WG-ITD), 4-6 October 2017, Asunción, Paraguay
Informe Final GT-HRH Décimo cuarta reunión, 4-6 Octubre 2017, Asunción, Paraguay
Informe Final Décimo tercera reunión, Grupo de Trabajo sobre Hidrología y Recursos Hídricos, (octubre 2015)

RA IV - North America, Central America, Caribbean

Current RA IV Hydrological and Water Coordination Panel

Second meeting of the RA IV Hydrological and Water Coordination Panel, 5 April 2022
First meeting of the RA IV Hydrological and Water Coordination Panel, 11 March 2022
Terms of reference (Resolution 5 (RA IV-18) 2020) eng - esp
Hydrology and Water Resources (Resolution 3 (RA IV-18) 2021) eng - esp
Composition and information about the Panel
Groups working in coordination with the Panel:
- RA IV Expert team in Hydrological Infrastructure (ET-HYI)
- RA IV Expert team in Hydrological Services (ET-HYS).

Former Working Group on Hydrology

Report Eleventh Meeting of RA IV WGH, 23-25 January 2018, Kingston, Jamaica
Report Tenth Meeting of RA IV WGH, 23 February 2015, San Salvador, El Salvador
Report Ninth Session of RA IV WGH, 4-7 December 2006, San Salvador, El Salvador

RA V - South-west Pacific

Current RA V Working Group on Hydrology and Water Resources

Terms of reference for Working Group on Hydrology and Water Resources (Resolution 3.1/1 (RA V-18) 2021) en - fr
Regional progress on Hydrological and Water Resources components in RA V (Resolution 4.1/1 (RA V-18) 2021) en - fr

Virtual Forums

Fourth Hydrological Advisers Forum Region V - South-west Pacific, 7 April 2022
Third Hydrological Advisers Forum Region V - South-west Pacific, 2 December 2021
Second Hydrological Advisers Forum Region V - South-west Pacific, 18 March 2021
First Hydrological Advisers Forum Region V - South-west Pacific, 15 October 2020
RA V Virtual Hydrology Forum

Former Working Group on Hydrology

Report Ninth Session RA V WGH , 9-13 November 2015, Brisbane, Australia Final report
Report Eighth Session RA V WGH , 25-29 November 2013, Christchurch, New Zealand
Report Seventh Session RA V WGH, 14-18 December 2009, Bandung, Indonesia Final report
Report Sixth Session RA V WGH, 17-21 October 2005, Nadi, Fiji
Report meeting of experts on Hydrological needs of small islands, 4-6 October 1999, Nadi, Fiji

RA VI - Europe

Current RA VI Regional Hydrological Assembly

Terms of reference for Regional Hydrological Assembly (Resolution 3.2/1 (RA VI-18) 2021) ar - en - fr - ru

Virtual Forums

Former Working Group on Hydrology

WMO RA VI Working Group on Hydrology