Author Archives: Fredrik Wetterhall

Hydrological forecasting at EGU 2018 – what not to miss next week!

The EGU 2018 Annual General Assembly will take place next week, from 8–13 April 2017 in Vienna as usual. The HEPEX community will be represented in many ways, and below you will find a quick guide to the most relevant … Continue reading

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What are the challenges for HEPEX over the next decade?

The question sounds grand and may be a bit difficult to give a simple answer to, but that was the question put forward to the participants at the HEPEX workshop in Melbourne in February. HEPEX was founded as an initiative … Continue reading

Posted in meetings, opinion, science plan | 1 Comment

Ensemble prediction: past, present and future

Contributed by Fredrik Wetterhall and Roberto Buizza, ECMWF The work of producing meteorological ensemble forecasts started 25 years ago at ECMWF and NCEP, and it sparked a revolution in both weather forecasts and its many applications. To celebrate this occasion, … Continue reading

Posted in activities, data assimilation, ensemble techniques, forecast techniques, forecast users, historical, meetings, operational systems, verification | 1 Comment

Final call for abstracts: 2018 HEPEX workshop in Melbourne, Australia

As you may have heard, the 2018 HEPEX workshop in Melbourne is coming up soon (Feb 6-8, 2018). Abstracts are due for submission on Sep 30, 2017. The workshop will feature both oral and poster presentations. The theme for the … Continue reading

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The Current State of Operational Global (and continental) Scale Flood Forecasting

contributed by Rebecca Emerton, PhD Student at the University of Reading and ECMWF After reading Chantal’s recent blog post discussing some of the limitations for international flood forecasting, and last week’s interview with Thomas Adams and Tom Pagano discussing their … Continue reading

Posted in ensemble techniques, floods, operational systems | 4 Comments

“Ex tempore”- El Niño Ready Nations (ENRN)

Contributed by Bapon Fakhruddin Seasonal forecasting techniques today are far more advanced than they were 40 years ago, enabling ensembles of seasonal forecast simulations with state-of-the-art climate models that produce a probability distribution of possible outcomes at various lead times … Continue reading

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UK and Ireland floods in December 2015 and January 2016

by Richard Davies December 2015 saw three storms – Desmond, Eva and Frank – conspire to make it the UK’s wettest month on record. The heavy rainfall brought severe flooding to parts of Scotland, Ireland and northern England, where … Continue reading

Posted in floods, operational systems, risk management | 1 Comment

#FloodHack inspired ideas to improve global flood forecasting

The #FloodHack on 16 -17 January at ECMWF in Reading brought together about 50 volunteers from ECMWF, universities, environmental consultancies and software development companies over a weekend of development. Their goal was to explore ways of making the Global Flood Awareness … Continue reading

Posted in activities, data systems, meetings, operational systems | 2 Comments

Special issue in HESS: Sub-seasonal to seasonal hydrological forecasting

To start of 2016 on a positive note, HEPEX is happy to invite contributions to a special issue in HESS on sub-seasonal to seasonal hydrological forecasting. The special issue is a follow-up on the workshop in Norrköping in September 2015 as … Continue reading

Posted in announcements-events, forecast techniques, hydrologic models, seasonal prediction | Leave a comment

#FloodHack – Help improve the Global Flood Awareness System

Are you interested in global flood forecasting? Are you a good code hacker? Or perhaps a bit of both? Then maybe a Hackathon would be something for you? On the 16-17 January ECMWF invites everybody interested in improving the Global Flood … Continue reading

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