23 (+1) unsolved questions in hydrology

23 (+1) unsolved questions in hydrology

Contributed by Bettina Schaefli Have you heard about the “23 unsolved problems” initiative of IAHS, in reference to the 23 unsolved problems of Hilbert? After the launch of this initiative in November 2017, the web-based discussion culminated in a round of brainstorming at EGU 2018 and in a voting process at the Vienna Catchment Science Symposium. Personally, I did not contribute any question at the discussion stage. I simply could not think of a question that relates to observed phenomena,…

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An invitation: help HEPEX program apps to teach the value of probabilistic forecasts

An invitation: help HEPEX program apps to teach the value of probabilistic forecasts

Contributed by Florian Pappenberger, Andy Wood, Maria-Helena Ramos, Schalk-Jan van Andel, Louise Crochemore, and Louise Arnal This is a blog for people who usually do not read this blog. This is a blog which asks for help so that our learning and teaching games and tools become more useful and widespread. This is a blog hoping that we can find some enthusiastic volunteers. The more people know how to use probabilistic forecasts, the better their decisions and the lower the…

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Making connections through HEPEX – A CSIRO experience

Making connections through HEPEX – A CSIRO experience

By QJ Wang, Andrew Schepen, David Robertson, James Bennett, Durga Lal Shrestha, Yong Song and Tony Zhao members of the CSIRO Columnist Team HEPEX has a reputation as a strong community of like-minded, supportive researchers and practitioners who are collectively bent on significantly advancing the science and applications of ensemble hydrological forecasting. HEPEX provides a unique forum where meeting people and exchanging ideas has the very real potential to open up new, exciting collaborative research opportunities. Indeed, this has been the…

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Using the Web for Environmental Big Data

Using the Web for Environmental Big Data

Contributed by Claudia Vitolo and Wouter Buytaert (Civil and Environmental Engineering, Imperial College London) About 90% of all the data in the world has been generated over the last two years1. At this rate, in 2015 we are expected to deal with 7.9 ZB (1 ZB = 1012 GB) of data, increasing to 35 ZB in the next five years2. A considerable share of these Big Data is the result of environmental related activities3,4 via computer simulation, as well as…

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2015 Chinese New Year resolutions – HEPEX’s future in China

2015 Chinese New Year resolutions – HEPEX’s future in China

Contributed by Yi He, Qingyun Duan, Desmond Manful and Florian Pappenberger Let’s celebrate! Let’s get ready, because the goats are coming. According to the Chinese lunar calendar, the Year of the Wooden Goat starts on 19th of February 2015. Very much like the science of ensemble forecasting, the Chinese zodiac (Figure 1) is an ensemble of methods that can be utilized to predict people’s personality, fate and destiny. Let us, the atmospheric scientists, the HEPEX community, and people affected by…

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