If you've ever wondered what would happen if a response to a review was filled with really bad puns and references to Star Wars, I’ve got you covered. I just hope the reviewers rise to the occasion because I think we can do something really special here.
The press release for our recent JGR: Earth Surface paper. A nice description about our project and the laser scanners
We have a new paper out! Work with @leighstearns.bsky.social, @laserglaciers.bsky.social, and Sid Shankar studying the potential of new ICEYE SAR satellite imagery to study the dynamic behaviour of ice mélange around the margins of the Greenland Ice Sheet.
Read more here: tinyurl.com/mtc94juu
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...
Bathymetry of Sermilik showing the major currents and a satellite image of the region showing large icebergs scattered around the fjord
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
Yesterday, my federal agency (NSF) experienced a sudden and mass firing of over 10% of our workforce. My own Division lost 20% of its staff. In the blink of an eye, we lost many brilliant scientists, dedicated civil servants, and parents/spouses/caregivers who no longer have a paycheck. The firing was completely arbitrary, with no actual plan to achieve "efficiency" but instead just picking off anyone with the fewest job protections. I grieve for my former colleagues and extend my hand to be of help however I can. I still have a job - not based on my abilities but simply because my status makes me harder to fire. But who knows what comes next. I'm hoping this assault on science and government is just a passing storm, but even then the damage has already been devastating - careers broken, research disrupted, and resources wasted. Science is the goose that lays golden eggs - unleashing human ingenuity and systematic thinking toward discoveries that transform our society for the better. Public science funding creates space for research that may not have immediate applications but will yield dividends down the road. Unfortunately, right now the science goose is being strangled and those golden eggs are being lost. Our society will be poorer, sicker, and weaker as a result.
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.
