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Author: maria-helena

How writing an article can come out of the blue (KGE on log-transformed flows: a bad idea?)

How writing an article can come out of the blue (KGE on log-transformed flows: a bad idea?)

Contributed by Léonard Santos (Irstea, France). It is common to read articles in which the Kling and Gupta Efficiency (KGE, Gupta et al., 2009) or its modified version (KGE’, Kling et al., 2012) are used as a metric to evaluate the quality of streamflow simulations. They are often seen as a solution to substitute the Nash and Sutcliffe Efficiency (NSE, Nash and Sutcliffe, 1970). However, are these two criterion totally comparable? Can the KGE be used exactly in the same…

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Can hydrological forecasting contribute to Science & Art projects?

Can hydrological forecasting contribute to Science & Art projects?

Contributed by Maria-Helena Ramos and Louise Arnal. In 1991, L. D. James starts his book chapter stating that “[i]n content, hydrology is a science; in practice it is an art”. The discussion that follows reflects on the links between science and practice at the time of writing, questioning how much “the art of hydrology [was becoming] increasingly outdated” and highlighting the “pressure for new methods” to keep on securing decision makers in water resources planning with “sound scientific information for…

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Survey results: views and opinions about Hepex and hydrological forecasting

Survey results: views and opinions about Hepex and hydrological forecasting

Contributed by Maria-Helena Ramos At the beginning of the year, we launched a short online survey to gather some views and opinions about Hepex and start a discussion on the future of Hepex: how should the community continue its efforts? What should Hepex be in 10 years’ time? During the 7th International Hepex Workshop in Melbourne we had an interactive poster that complemented this survey and collected some more views and opinions from the participants of the workshop. Below you…

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10 years of the Sub-Division on Hydrological Forecasting at EGU (2008 – 2018)

10 years of the Sub-Division on Hydrological Forecasting at EGU (2008 – 2018)

Contributed by Maria-Helena Ramos and Femke Davids The field of Hydrological Forecasting has grown over the last ten years into an interesting and thought-provoking sub-division to the European Geosciences Union (EGU). Through this sub-division, at one of the largest Geoscience conferences in the world, we address many challenges that today’s hydrologists, and also users and decision-makers in the water sector, have to deal with. Below you will find an interesting read into the background and history of this field at…

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Forecasts of water variables – interview with Ilias Pechlivanidis

Forecasts of water variables – interview with Ilias Pechlivanidis

I can’t exactly remember the first time I met Ilias, but I can remember that every time we have the opportunity to sit together, we end up having great talks about hydrology, modelling and Greece (including its food/drink specialities and beautiful places to visit!). Ilias is a senior hydrologist at the Swedish Meteorological and Hydrological Institute (SMHI) since 2012. He has broad experience in hydrological modelling and forecasting, and has been recently appointed Scientific leader of the theme “Forecasts of…

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