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Celebrating the new hydrological year with a new HEPEX blog year: Let’s co-generate the HEPEX blog global pattern

Celebrating the new hydrological year with a new HEPEX blog year: Let’s co-generate the HEPEX blog global pattern

Happy New Hydrological Year!! According to USGS and based on meteorological and geographical factors, the hydrological year is defined as the period between October 1st of one year and September 30th of the next year. Driven by this, HEPEX will set for this year a new interactive approach for scheduling the blogs with and for the community. The blog has been our channel to communicate scientific achievements, insights and developments. As a blogger, you do not need to be outstanding…

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“Are we talking just a bit of water out of bank? Or is it Armageddon?” Front line perspectives on transitioning to probabilistic fluvial flood forecasts in England

“Are we talking just a bit of water out of bank? Or is it Armageddon?” Front line perspectives on transitioning to probabilistic fluvial flood forecasts in England

Contributed by Louise Arnal, Jess Neumann, Liz Stephens and Hannah Cloke This blog post is based on a paper recently published in Geoscience Communication, written in collaboration with Liz Anspoks, Sue Manson, Tim Norton and Louise Wolfenden from the Environment Agency. With the aim to better anticipate future floods, UK policy is seeing an ongoing shift from flood defence towards a forecast-based flood risk management approach, under the Flood and Water Management Act 2010. It is in this context that…

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Can we achieve seasonally coherent forecasts given limited NWP DATA – across a continental domain?

Can we achieve seasonally coherent forecasts given limited NWP DATA – across a continental domain?

Contributed by Kirsti Hakala1, QJ Wang1, Qichun Yang1 and David Robertson2. Reliable weather forecasts are critical for the planning and management of a variety of social and economic activities, such as water management. To make such forecasts, numerical weather prediction (NWP) models have been developed. However, NWP models are limited in their ability to represent certain physical processes and initial conditions, and thus include inaccuracies, which can be improved through calibration. Effective calibration should aim to provide forecasts that are…

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Assimilation of in-situ and satellite data in hydrological predictions – Can we add value?

Assimilation of in-situ and satellite data in hydrological predictions – Can we add value?

Contributed by Jude Musuuza (SMHI). The increased focus on satellite missions in recent years has resulted in a rich source of valuable Earth Observations (EO), in terms of spatial coverage and temporal frequencies that are impossible to achieve with direct measurements. Such observations have been used in various disciplines, including also hydrological modelling, for instance to improve process understanding through tailored model parameterisation and performance assessment. In addition EOs have been used to (better) initialise the model states which further…

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Can seasonal hydroclimate services be a success story for local applications? Some answers based on a French case study!

Can seasonal hydroclimate services be a success story for local applications? Some answers based on a French case study!

Contributed by Louise Crochemore (SMHI), Ilias Pechlivanidis (SMHI) and Maria-Helena Ramos (INRAE). Hydroclimate services are increasingly available… An increasing number of hydroclimate services provide readily available water predictions to users at the catchment scale. For example, in Europe: Local to global services based on products from the Copernicus Climate Change Service (C3S) have been developed for the hydropower, water resources, flood risk prevention and agriculture sectors within the H2020 CLARA project. The H2020 S2S4E project has co-developed a decision support…

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