During my PhD, I got alot of unhelpful advice Now I'm a PhD supervisor, I know 💯 what I needed to hear 4 things every PhD student should know 🧵 #phdchat thoughtsofaphd PhD_Genie The PhD Story Happy PhD Supervisor PhDiva Refocused

PhD candidate Jukes Liu (they/she)'s paper on the 2016 synchronous retreat of SE #Greenland's peripheral marine-terminating glaciers is now published as an accepted article in AGU (American Geophysical Union)'s Geophysical Research Letters! Check-out the article at agupubs.onlinelibrary.wiley.com/doi/10.1029/20… & my summary thread...

Jukes Liu (they/she) AGU (American Geophysical Union) Jukes applied her novel, automated terminus mapping method to the USGS Landsat 8 time series for 135 glaciers not connected to the ice sheet (based on the Randolph Glacier Inventory). The open code is at github.com/julialiu18/aut… & described in ieeexplore.ieee.org/document/93491…

56 of 135 glaciers in SE Greenland retreated anomalously in 2016. The map outlines the retreated glaciers in orange & the others in blue. Retreat was a step (type C1), increase in rate (type C2), or a combo of the two (C1+C2=C3). This level of synchronicity is unprecedented

What drove the retreat? Likely surface melt! 2016 had anomalously high surface meltwater runoff (panel a). The meltwater runoff anomaly isn't too different for retreated glaciers (panel b) but they had shallower slopes (panel c), making them more susceptible to melt effects.

In contrast with the ice sheet's outlet glaciers, retreat doesn't seem to be triggered by ocean temp change (blue lines), potentially b/c these glaciers don't penetrate deep enough into the ocean. But runoff can wedge open crevasses & increase submarine melting, driving retreat.

The bluest blue 🤩 #GreenlandIceSheet

Great work by former MS student Kate Bollen (now USGS) hot off the presses! Timeseries of ice discharge to the ocean by 585 #Greenland glaciers disconnected from the ice sheet estimated from NASA JPL velocity, USGS Landsat width, & inferred thickness. How much ice has been lost?

This underscores the incompatability of alpine glaciers with heatwaves, that is has become a recurring story around the globe. blogs.agu.org/fromaglaciersp…

Leaving out seasonality from models of ocean-terminating glaciers can bias projections! In our new paper, we model a glacier that flows into the ocean in two ways. First, we force the terminus to retreat and wiggle back and forth seasonally, just like real glaciers.

2022 field work at #SitKusa/#TurnerGlacier just wrapped, thanks to Ellyn Enderlin, Jukes Liu (they/she), Yoram Terleth, and mountaineer Suz Detweiler. Super successful and our network continues going strong. Reminds me how much I love the intensity, creativity, and team work of the field.

I feel very lucky to work on an amazing project with amazing people. Thanks Ellyn Enderlin Jukes Liu (they/she)!

We're hosting the next meeting of the Northwest Glaciologists here at University of Idaho this coming October 14-15. Check out tbartholomaus.org/nwg2022/ and book us in your calendars! We hope to see you in lovely Moscow, ID!

Seeking university/community college educators to test new classroom curriculum during 2022/23 school year! Bring #Greenland into your classroom with 360 interactive environments, authentic data, and GIS. Full implementation support and stipend provided!

This is awesome!!

So proud of the work from this amazing collaborative #openscience group of snow geeks, many diff univ and gov labs. Building snow monitoring capability with the upcoming #NISAR mission. #SnowMafia #nisarscience22 @boisestate Jack Tarricone Eli Deeb Dr. Naheem Adebisi Ryan Webb

Ah the week before AGU… The wonderful time of year when I frantically write hundreds of lines of code to make beautiful presentation figures, only for me to have absolutely no clue what the scripts actually do when I come back to them

I submitted my PhD thesis last Friday, with the help of my wonderful supervisors. For those who are interested in the contents, I've summarised it here as a Spotify playlist: open.spotify.com/playlist/0E9Ph…

KC Aman gave an awesome accessible explanation of his MS thesis research on #Greenland glacier terminus ablation (iceberg calving + melt below the water) for the Boise State University Graduate College’s 3 Minute Thesis competition! Boise State Geo

Congrats to stellar Boise State Geo undergrad Maddie Gendreau for her great lightning talk on #glacier surge mapping with Planet Scope imagery at today’s Boise State University Undergrad Research Showcase! Also, credit to Jukes Liu (they/she) for being an awesome mentor & working closely w/ Maddie!