EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

HydroSOS: a pilot global Hydrological Status and Outlook System integrating national to global scale hydrological services for increased resilience to hydro-climatic risks

Katie Smith1, Luis Roberto Silva Vara2, Harry Dixon1, Victoria Barlow1, Alan Jenkins1, Dominique Berod2, Hwirin Kim2, Guoqing Wang3, David Wolock4, Narendra Tuteja5, Guna Paudyal6, Tom Kanyike7, Eleanor Blyth1, and Andy Wood8
Katie Smith et al.
  • 1UK Centre for Ecology & Hydrology, Wallingford, United Kingdom (
  • 2World Meteorological Organization, Geneva, Switzerland
  • 3Nanjing Hydraulic Research Institute, Nanjing, China
  • 4USGS Kansas Water Science Center, Lawrence, Kansas, USA
  • 5Bureau of Meteorology, Canberra, Australia
  • 6Independent Consultant, Nepal
  • 7Ministry of Water and Environment, Entebbe, Uganda
  • 8National Center for Atmospheric Research, Boulder, Colorado, USA

Consistent hydrological status and outlook information across transboundary basins or regions of shared hydrological interest are not often available. Furthermore, whilst large-scale modelling capabilities are continually improving, there is an information and confidence gap between locally informed hydrological status information products and those developed globally.

HydroSOS is World Meteorological Organisation initiative that aims to increase global resilience to hydro-climatic risks through the production of hydrological status and outlooks assessments at different scales around the world. Currently in a pilot phase, HydroSOS is being developed through a collaboration between National Hydrometeorological Services, transboundary basin organisations, global modelling centres and the research community. The system will provide an appraisal of where current hydrological status is different from “normal”, as well as sub-seasonal to seasonal outlooks indicating whether this is likely to get better or worse over the coming weeks and months.

The HydroSOS programme consists of five main activity streams:

  1. Increasing the interoperability of hydrological status and outlook products through Common Technical Specifications.
  2. Increasing national capabilities to generate hydrological status and sub-seasonal to seasonal outlook products through Guidance on Methods and Tools.
  3. Increasing the utility of large-scale hydrological status and outlook modelling through Co-design of Global Products, with international partners working from local to global scale.
  4. Increasing shared production of transboundary hydrological status and outlook products through Regional Pilots, initially in South Asia and the Lake Victoria Basin.
  5. Integration of hydrological status and outlook products for national, regional and global users through a Demonstration Portal.

This PICO contribution will present progress in the pilot project to date, including a hands-on demonstration of the web portal.

How to cite: Smith, K., Silva Vara, L. R., Dixon, H., Barlow, V., Jenkins, A., Berod, D., Kim, H., Wang, G., Wolock, D., Tuteja, N., Paudyal, G., Kanyike, T., Blyth, E., and Wood, A.: HydroSOS: a pilot global Hydrological Status and Outlook System integrating national to global scale hydrological services for increased resilience to hydro-climatic risks, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-7554,, 2020


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