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Category: flash floods

Improving forecasting of flooding from intense rainfall through interdisciplinary research

Improving forecasting of flooding from intense rainfall through interdisciplinary research

Contributed by Dr Linda Speight, University of Reading. In England and Wales alone 3 million properties are at risk of surface water flooding. Having spent the past year speaking to a number of experts in the field (see below), I feel confident saying the universal biggest challenge facing everyone involved in forecasting flooding from intense rainfall is communicating the uncertainties around the location and timing of flood events. Whether you are a researcher looking at developing novel ways to visualise…

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Crowdsourced data for flood hydrology – Interview with flood chasers in France and Argentina

Crowdsourced data for flood hydrology – Interview with flood chasers in France and Argentina

Contributed by MH Ramos, member of the IRSTEA Columnist Team A recent paper published in the Journal of Hydrology has drawn my attention: Crowdsourced data for flood hydrology: Feedback from recent citizen science projects in Argentina, France and New Zealand. The paper deals with the use of information from social media in applied sciences and operations, with a focus on collecting photos and videos  to better assess river flows and to improve flood mapping after severe events. It prompts reflections on the way qualitative and quantitative data can…

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The human hydrological model

The human hydrological model

by Marie-Amélie Boucher, a HEPEX 2015 Guest Columnist Very recently, my fellow HEPEX columnist Jan Danhelka discussed the importance of the human forecasters in the whole process of weather and streamflow forecasting. His blog reminded me of a visit I made last year which somewhat challenged my views on flood forecasting. It was a technical tour about water management on Spencer Creek watershed that took place at the end of a conference. And there I met the first (and so far…

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Developing a pilot surface water flood forecasting tool for Glasgow and operational use during the Commonwealth Games

Developing a pilot surface water flood forecasting tool for Glasgow and operational use during the Commonwealth Games

Contributed by Linda Speight This year, the 2014 Commonwealth Games were held in Glasgow and everyone in Scotland was keen for it to be a success. Glasgow however has a known history of summer surface water flooding (2002, 2007, 2011, 2012, 2013). The Scottish Flood Forecasting Service (SFFS) is responsible for flood forecasting in Scotland, and we felt that if heavy rain was to occur, our existing surface water forecasting capabilities would not be sufficient to meet the expected briefing…

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Flash Floods in Europe: state-of-the-art and perspectives

Flash Floods in Europe: state-of-the-art and perspectives

Contributed by Eric Gaume What do we really understand about “flash floods”? This question motivated the presentation I gave in Vienna during the last EGU Assembly in the session: Flash floods and associated hazards: monitoring, forecasting, preparedness and coping strategies (see the abstract here). One of the first questions to address is: ‘What is a flash flood?’ The proceedings of the Paris symposium IAHS in 1974 gives the following definition: « Extreme flood induced by a severe stationary rainfall event ». « Most…

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