New paper! 🎉 How do Arctic leads (cracks in sea ice) affect the atmosphere under different conditions? Condensing plumes can act as "radiator fins", efficiently removing energy downstream; sometimes cooling the air even more than the lead initially warmed it! @agu.org @unicologne.bsky.social

Lead Impacts on the Moist Static Energy Budget of the Low‐Level Arctic Atmosphere in Large‐Eddy Simulations Based on MOSAiC Data

Idealized leads are introduced into a set of large-eddy simulations based on Multidisciplinary drifting Observatory for the Study of Arctic Climate field campaign data during polar night Lead imp...

doi.org

Meteorologist Matthew Cappucci flew into the eye of Hurricane Melissa, a Category 5 storm that is projected to hit Jamaica. “It was equal parts scientifically stunning and horrifying from a humanitarian standpoint,” he wrote, flying in one of two groups of hurricane hunters. https://wapo.st/42XpWmq

Simply incredible imagery of Hurricane Melissa this morning as it approaches Jamaica.

We have a new preprint online at ESS Open Archive, under review at JAMES. We conducted LES to investigate how Arctic leads impact the moist static energy budget of the ABL and, for example, found that lead plumes are highly effective in removing heat via longwave radiation. doi.org/10.22541/ess...

🆕 The discovery of new complex organic molecules at Saturn's #Enceladus enhances the likelihood that the moon is habitable 🪐 On Earth, these molecules are involved in chemical reaction chains that lead to the more complex molecules essential for life. Read more 👉 www.esa.int/Science_Expl... 🔭 🧪 ☄️

So this is pretty amazing - yesterday EarthCARE sampled Hurricane Humberto straight across the eye! The eye of a tropical cyclone is small so a direct hit is rare: this is the first time EarthCARE has hit one after over a year in orbit! (Showing here also VIIRS on NOAA-20 for context.)

Dust Is the Sky’s Ice Maker eos.org/articles/dus...

Dust Is the Sky’s Ice Maker - Eos

New analysis links desert dust to cloud freezing, with big implications for weather and climate models.

eos.org

Interesting paper about how top policy makers underestimate people's willingness to contribute part of their income to combat climate change. @nature.com doi.org/10.1038/s432...

United Nations Environment Assembly attendees underestimate public willingness to contribute to climate action - Communications Earth & Environment

Policy officials often believe that only a minority of the public is willing to contribute to addressing climate change, but climate actions have broader public support, according to an analysis that ...

doi.org

We recently published a paper on how the low entrainment efficiency of Arctic mixed-phase cloud layers is influenced by wind shear and radiative effects using dozens of high-resolution Large-Eddy simulations @ametsoc.org doi.org/10.1175/JAS-...

I will present our current work on simulating the impact of leads on the Arctic atmospheric boundary layer at #AGU24 @agu.org / Contribution C41E-0231. This is strongly based on our recently published paper in JAMES: doi.org/10.1029/2024...

Standardized Daily High‐Resolution Large‐Eddy Simulations of the Arctic Boundary Layer and Clouds During the Complete MOSAiC Drift

A standardized LES setup based on campaign data is developed with an aim to supplement the local measurements during the Multidisciplinary drifting Observatory for the Study of Arctic Climate drif...

doi.org