I am a big fan of the fiber optic cables for ice-ocean interactions. Unfortunately, with Helheim Glacier's ice melange, I think it would be nearly impossible to actually install them close to such an active glacier.

Presenting Dr. Ziad Rashed!! 🧊❄️🍾🎉

and a BIG thank you to the @heisingsimonsfdn.bsky.social for funding our work over the years 🧊

Equally as important, please check out the accompanying AWS public dataset for all the cloud-optimized point cloud files and COGs in this S3 bucket (s3://atlas-lidar-helheim/).

An 8-year record of daily and sub-daily ATLAS elevations and velocities when operational. The first of its kind!

I’m incredibly thankful for my co-authors who helped me wrestle with this massive dataset over the years: @leighstearns.bsky.social , C. J. van der Veen, David Finnegan, Adam LeWinter, Sarah Child, Shad O'Neel, and Howard Butler

Lastly, from ATLAS’s unique ability to capture 3D change, we were also able to map groundling line migration and grounding zone retreat. Between 2018 –2019, Helheim Glacier’s grounding zone retreated 3 km upflow!

However, we do not find sustained accelerations in velocity after most calving events, questioning previously held hypotheses that Helheim Glacier is sensitive to processes at the terminus. 🤔

We find a common area on Helheim Glacier’s surface where large surface depressions form. These surface depressions lead to rifts and eventually large calving events. This calving style is the primary source of mass loss at Helheim Glacier.

🚨 New Publication 🚨

I’m excited to share our new paper out in @jgrearthsurface.bsky.social!

Read more about calving mechanisms at Helheim Glacier from two autonomous terrestrial laser scanners (ATLAS) results here doi.org/10.1029/2024...

Greenland's fjords are the gateways via which the ice sheet interacts with the open ocean. A large fraction of all the ice calved from the ice sheet melts within these regions. Kinne et al., explore how all this melt affects fjord circulation 🌊 🐻‍❄️

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

This comes on top of the quiet discontinuation of the NSF OPP program earlier this year. We are going to lose so many talented early career scientists as a result of these short-sighted decisions.

Everyone needs to understand that dismantling NSF will have devastating long term consequences in our competitiveness and innovation in science, technology and beyond. 1/

news.stanford.edu/stories/2025...
NASA Earth data + AI enable us to infer the constitutive models critical for ice dynamics. AI is useful, but no data = no discovery. Below is an example of the training data: a velocity map showing the dynamics of the Antarctic Ice Sheet. Source: #NASA.

what a great paper! This really complicates seasonal tidewater glacier variability, which is already complicated 😵‍💫

A very timely and important read by the great @tankisandre.bsky.social

From NSF EAR program director Raleigh Martin on LinkedIn

#climatesky #greensky

A lot of our academic colleagues go to work at NSF for a couple of years as a rotator. In the programs that have funded me, rotators have been essential to keeping those divisions going. It's hard to see how these firings won't severely diminish NSF.

Aurora Roth and others have drafted a community letter affirming US researcher support for Greenland's self-governance and autonomy. Please consider reading and signing the letter (please use personal email if vulnerable to retaliation!) docs.google.com/forms/d/e/1F...