Uploaded all recorded lectures and notes from my grad level large scale dynamics course: web.ics.purdue.edu/~dchavas/EAPS5… covers wide range of topics, some I couldn’t find much available material for (and are hard). I love when others share their notes so figure this may help others too.

Our J.Clim paper looking at the inter-model spread in CMIP5/6 pattern effect is featured as a Research Highlight in Nat Climate Change! nature.com/articles/s4155…

Videos from last week's excellent talks on Emergent Constraints and Tipping Points now available via emps.exeter.ac.uk/mathematics/st…. European Research Council (ERC) ECCLES project, @CRESCENDO_H2020, 4C Climate Carbon H2020 Research at Exeter.

Early warning systems for natural hazards are crucial for reducing impacts. Warnings should be combined with impact forecasts to capitalize on multi-hazard / compound event impacts. See our review here, including heat, storms, floods, earthquakes: agupubs.onlinelibrary.wiley.com/doi/full/10.10…

Latest addition to my home library

Our new paper shows the forest drought resistance in California and how/where future droughts could kill millions of trees, a lot more than the 100million+ that was killed in Sierra Nevada during the 2012-2015 drought doi.org/10.1088/1748-9… w/@cdkoven UCLA Center for Climate Science

THREAD CMIP5 and CMIP6 data Find the idea of downloading terrabytes of data to extract a global-mean signal from CMIP scary? Our new paper will help! doi.org/10.1002/gdj3.1… cmip6.science.unimelb.edu.au

I’m really happy to announce our new paper led by @ldeo postdoc, Dr. Kasey Bolles, presenting a new 500-year reconstruction of Flash Drought in the Central Plains of the US: doi.org/10.1029/2020GL…. 1/7

Really enjoyed this new Nature Geoscience paper by Yi Zhang, Held and Fueglistaler on changes in tropical heat stress nature.com/articles/s4156… Punchline is that changes in extreme tropical wet bulb temperature (TW), a measure of heat stress, follow changes in tropical-mean temp /1

New video!! youtu.be/mDt-HJEXK6g Part 1 of deriving the Reynolds Averaged Navier Stokes (RANS) equations for fluid turbulence... (I had a little extra coffee in this edited version)

Two dynamical perspectives on the NA #heatwave: i. Anticyclonic wave breaking, forming an omega block. ii. Amplified wave-4 in a strong, northward polar jet. The latter might be linked to amplified land warming in NH high latitudes. LDEO Columbia Climate School Potsdam Institute for Climate Impact Research PIK

In our new Nature Communications paper, we use machine learning to detect the human influence in extreme precipitation records. This is the first study to do so successfully in multiple global datasets. Chad Thackeray @drNaomiG Alex Hall UCLA Center for Climate Science nature.com/articles/s4146…

One of the things you learn as a scientist is the ability to look at a plot and think, "that just doesn't look right." That's the feeling I got when I saw this plot that Lomborg is currently pushing.

#ChaparralFire 🎥 Thank you, Cy Phenice for this powerful video clip of the fire conditions yesterday.

Every summer, the American West is plagued by wildfires. In 2020, there were over 26,000. The destruction can be catastrophic. Here’s what makes it even worse: We know how to keep the worst megafires from happening. We’re just not doing it. Our latest video explains…

This is amazing and so exciting! Suki Manabe is widely considered as the godfather of GCM climate modelling (journals.ametsoc.org/view/journals/…), and we are still mining diamonds from Klaus Hasselmann's seminal 1975 paper on 'Stochastic Climate Models' (tandfonline.com/doi/pdf/10.340…).

My latest research out today in Nature Climate Change (NatureClimate) -- Constraining the increased frequency of global precipitation extremes under warming. nature.com/articles/s4155… Read-only: rdcu.be/cLlPj

Wildfire season in some parts of California starts more than a month earlier than it did in the 1990s, according to new research. Comments from Gavin D. Madakumbura UCLA and LeRoy Westerling UC Merced. eos.org/articles/calif…

🔥 Our latest work is out in Science Advances We document the shifting onset of fire season in California — and uncover the key drivers behind why it’s arriving earlier each year. Honored to be featured on the cover of the journal! 📄 Read it here: doi.org/10.1126/sciadv…