‘Praying for something implies that, despite My omniscience, I don’t already know what you want.’ –@TheTweetOfGod

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Weather forecasters need a ton of knowledge and a fair bit of experience with local weather patterns to do their job well. They also need a good forecast model. These computer models take in measurements from weather stations on the ground, satellites in orbit, and balloons in between and then simulate the physics of weather forward in time a few days.

For the first time in about 40 years, the guts of the US model got swapped out for something new today. The upgrade brings us a new “Finite-Volume Cubed-Sphere” (or FV3) dynamical core, which simulates the basic atmospheric physics at the heart of this endeavor, a change that has been in the works for a while.

{ ArsTechnica | Continue reading }

photo { The main prize in the 2019 National Geographic Travel Photographer of the Year Contest went to Chu Weimin | Upernavik is a fishing village on a tiny island in west Greenland. Historically, Greenlandic buildings were painted different colors to indicate different functions, from red storefronts to blue fishermen’s homes—a useful distinction when the landscape is blanketed in snow. }