⚒️ Article: Flash droughts that are accompanied by extreme heat drive more severe and prolonged impacts on global ecosystems

@erichfischer.bsky.social @ethz.ch @louiseslater.bsky.social @sebastian-sippel.bsky.social @retoknutti.bsky.social

www.nature.com/articles/s41...

Caravan News🐪🐫

I just published Version 1.6. The main update is that the source data for CAMELS-AUS was upgraded to CAMELS-AUS v2. This means more basins (561 vs 222) and more recent streamflow data (2022 vs 2014).

All relevant links in thread 🧵

(please share/repost)

Zenodo dataset: doi.org/10.5281/zeno...
Code repo: github.com/mwort/grit
Online map: michelwortmann.com/research/gri...

🔍 Learn more:
📰 Paper: lnkd.in/ejMhZ8_X
🌐 EOS feature: lnkd.in/eB8CWDkQ
🏛 Oxford news: lnkd.in/eBSv-QgP

🔍 Why GRIT is a game-changer:
📏 Delivers 30m resolution across 19 million km of rivers and streams
🤖 Enables automatic updates using new satellite imagery and elevation data
🧭 Supports vector-based, global-scale river analysis
🧠 Powers AI/ML modeling in hydrology and environmental science

🌎 Unlike existing datasets that simplify rivers into single-threaded, convergent flows based on elevation, GRIT captures both converging and diverging flow patterns — a crucial advance for understanding river systems, especially in flood-prone, densely populated areas.

We’re thrilled to share GRIT, the world’s first high-resolution global river network that maps how rivers both merge and split across the landscape — now published in Water Resources Research (Wortmann et al., 2025).

🌐 Introducing GRIT: the First Global Bifurcating River Network 🏞
developed by Michel Wortmann as part of the NERC Large Grant EvoFLOOD, in the Hydro-Climate Extremes group @oxfordgeography.bsky.social

Are you an experienced researcher at @ox.ac.uk or Oxford Brookes University interested in leading a policy-engaged research agenda that will have meaningful local impact, reducing inequalities across Oxfordshire? Check out the Local Policy Lab's latest call: socsci.ox.ac.uk/chief-scient...

1/ How to Stop Being Surprised by Unprecedented Weather

Our new @naturecomms.bsky.social paper provides our multi-author perspective on methods to anticipate extreme weather and reduce impacts, shifting from reacting with surprise towards resilience.

🔗 Read it here: doi.org/10.1038/s414...

🧵⬇️

How to stop being surprised by unprecedented weather

Kelder et al. discusses a multitude of ways that we could anticipate unprecedented weather events that might otherwise be a surprise

rdcu.be/ecWQF

Interested in working on hydroclimatic forecasting, reservoirs, #MachineLearning, satellite data, and river networks in SE Asia? 🚨
3-year postdoc position available @oxfordgeography.bsky.social on the Ayrton SMART-HS project - Apply by 10 Mar 2025!
bit.ly/3WHIPqf
@ox.ac.uk @simmoulds.bsky.social

Working on #hybrid #hydrological #forecasting and thinking of going to #EGU25?

How about making an early Christmas present to yourself and avoid the January submission stress by submitting your abstract already now? 😉

📝📮👉 meetingorganizer.copernicus.org/EGU25/sessio...

I'm back to Bluesky.. going to give it another go!
The last few months have been busy..

Many congratulations to Bailey Anderson on a successful PhD defence! Sincere thanks to external examiner Ross Woods, internal Linda Speight, & co-supervisor @simondadson.bsky.social. Bailey's thesis focused on large-sample approaches to assess streamflow sensitivity to climate and land cover change.

How many independent climate models are there? (How) can we reliably estimate uncertainty in future predictions and projections of climate? Which models to select for downscaling or impact studies?

Join us at EGU24:
meetingorganizer.copernicus.org/EGU24/sessio...

@eurogeosciences.bsky.social

Great inaugural lecture by our former PhD student Manuela Brunner, proud former supervisor moment, lecture wort watching again and again on video.ethz.ch/speakers/lec...