David John Gagne II

@djgagnedos.bsky.social

Machine Learning Scientist at NSF NCAR in Boulder, CO. Interested in the linkages among AI, weather, climate, disasters, and impacts.

Projection has become reality 22 years ago, Christoph Schär et al. published a landmark paper in Nature explaining that the 2003 heatwave was a harbinger of things to come. The study featured an iconic figure - shown in countless lectures - illustrating how outlandish the event was at the time

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Heads up: With help from Claude and CREDIT, I have discovered that ERA5 has a few negative specific humidity values that caused my model to produce nans after performing a log transform on the data. The negative values are in both the pressure level (at 200 hPa) and model level output.

Building an AI model just got easier thanks to our open source tool CREDIT! NSF NCAR’s next-gen Community Research Earth Digital Intelligence Twin (CREDIT) got a fantastic upgrade, now with a building-blocks approach, reduced run time & more physics to keep the AI outputs as realistic as possible.

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I am not at #32SLS in Madison this week, but my postdoc Kevin Yang will be presenting our work on GOES nowcasting with CREDIT. How many channels and timesteps do you need to get storms to grow? Find out at 2:30 PM today in Madison Ballroom A.

Just finished Radical Cartography by William Rankin. Biggest surprise was chapter on color arguing against usage of “objective“ linear color maps like ColorBrewer b/c colors have connotations and maps make arguments by construction. Uniform colors also express a view. www.amazon.com/dp/052555979...

Amazon.com: Radical Cartography: How Changing Our Maps Can Change Our World: 9780525559795: Rankin, William: Books

Buy Radical Cartography: How Changing Our Maps Can Change Our World on Amazon.com ✓ FREE SHIPPING on qualified orders

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The FF LSRs coming out of Texas right now are horrific. "Feet of water over bridges" or "Every highway underwater". Wildfire smoke pouring into some areas across the north. GOES-19 down with possible massive problem. No ETA on fix. Good luck to all my fellow forecasters out there. Rough week.