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Category: open data

Playing ‘frisbee’ with seasonal predictions

Playing ‘frisbee’ with seasonal predictions

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  Embed from Getty Images   This blog is written by Timo Kelder (@timokelder), a 3rd year PhD student in climate science at Loughborough University. Here, he writes about the history of frisbees, and the parallels with his recently published paper on using seasonal predictions for detecting recent trends in rare extremes. Ultimate frisbee is now a well-established sport, with over 70,000 British participants in 2019. The photo shows how this began in the 1970s by skimming disks. But how…

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GloFAS-ERA5 reanalysis: River discharge ‘maps without gaps’ from 1979-present

GloFAS-ERA5 reanalysis: River discharge ‘maps without gaps’ from 1979-present

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Contributed by Shaun Harrigan, ECMWF. In an ideal world we would have river discharge measurements for every river spanning many decades and updated in real time. We all know this is very far from reality with severe gaps in the global observing network (Lavers et al., 2019), and provides a fundamental challenge for hydrological monitoring and forecasting. A way forward pioneered in the field of meteorology and climate is to optimally combine available in situ and satellite Earth system observations…

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Data Drought and Data Flood

Data Drought and Data Flood

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Contributed by Mark Trigg*.  It’s hot, and very, very dry. The rains have failed, and the animals are dying. Around the table people are concerned that it will be people dying next. The cycle seems to repeat every 10 years and the response is exactly the same, every time – we must do something and save lives. “Drill more boreholes and put in big pumps and generators”, someone cries, “no matter the cost!”. A timid voice rises above the ongoing…

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Drought Observatory: a Climate Service to improve environmental resilience

Drought Observatory: a Climate Service to improve environmental resilience

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Contributed by Ramona Magno, IBIMET-CNR, Italy. Drought is a creeping and complex phenomenon with different types of impacts that imply a general reduction of water availability and involve either energy or food sectors, and on a wider scale the ecosystems. Under a climate change framework, the increasing frequency of droughts and their extended persistence need to be accounted for, addressing both adaptation and mitigation strategies. Drought dynamics reveal a time gap between the onset of a drought event and the…

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Fictitious Forcings have Macondo in Trouble: A Hackathon Story

Fictitious Forcings have Macondo in Trouble: A Hackathon Story

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Contributed by Georgy Ayzel.  Meteorological ensemble forecasts form the core of every system for hydrological ensemble prediction. There are multiple data sources where our meteorological ensembles could come from: historical observations, numerical weather prediction and climate models, or stochastic weather generators. Different sources serve different ways we want to communicate and deliver the information of possible runoff responses to various meteorological conditions. However, there is a source that is typically ignored in the modern landscape of ensemble runoff prediction –…

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