geoallen.bsky.social - Profile | ThreadSky | a Reddit-style client for Bluesky

🚨New paper🚨 shows a remarkably clean relationship between river width and stream order across the US 𝑇ℎ𝑒 𝑊𝑖𝑑𝑡ℎ𝑠 𝑜𝑓 𝑅𝑖𝑣𝑒𝑟𝑠 𝑎𝑛𝑑 𝑆𝑡𝑟𝑒𝑎𝑚𝑠 𝐴𝑐𝑟𝑜𝑠𝑠 𝑆𝑝𝑎𝑡𝑖𝑎𝑙 𝑆𝑐𝑎𝑙𝑒𝑠... 🔗 doi.org/10.1029/2025... #hydrology #geomorphology #rivers #RemoteSensing

submitted 7 hours ago • 1 comment

Using satellite, @geoallen.bsky.social and Hana Thurman measured a 166-mile-long river wave on the Colorado River. With NASA Jet Propulsion Laboratory, they also measured waves on Yellowstone + Ocmulgee Rivers. shorturl.at/nrKyK

submitted 13 days ago • 0 comments

I’m excited to share our recent paper with @diatomdura.bsky.social. We looked at macroplastic degradation and fragmentation in low-order riverine system. Thanks to the grad students and UGs that assisted in the year long study allowing us to narrow the knowledge gap academic.oup.com/etc/advance-...

submitted 23 days ago • 0 comments

Hana (grad student in my group) will be doing a research internship at JPL this summer. Here she is on her first day on the job. Good luck, Hana!! 🚀🚀🚀

submitted 23 days ago • 0 comments

NASA news article on our recent study on the #SWOT satellite's ability to capture hydrologic flow waves in rivers Link to paper: doi.org/10.1029/2024GL113875

submitted 29 days ago • 1 comment

🌐 Introducing GRIT: the First Global Bifurcating River Network 🏞 developed by Michel Wortmann as part of the NERC Large Grant EvoFLOOD, in the Hydro-Climate Extremes group @oxfordgeography.bsky.social

submitted 34 days ago • 1 comment

Hydrologists! Ever heard of a Spatial Hydrograph? Our new paper in @agu.org GRL shows that the SWOT satellite can capture spatial flow waves propagating down rivers—something previously only only observable at river gauges: doi.org/10.1029/2024... #SWOT #hydrology #RemoteSensing #EarthObservation

submitted 31 days ago • 4 comments

Delighted to see our @NERCscience @EvoFlood project research on changing flood hazard and risk profiled by @theAGU 💜 @lborouniversity eos.org/research-spo...

submitted 34 days ago • 0 comments

The American public is broadly supportive of maintaining federal science and medical research funding, and against punishing universities by taking their funding away, according to a new poll:

submitted 36 days ago • 10 comments

Are water levels in wetlands important to you? @kica22.bsky.social's new paper in GRL shows that the SWOT satellite can measure water surface elevations in the Everglades with a mean absolute error of 6.7 cm. Check it out! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

submitted 38 days ago • 0 comments

Congrats to Luisana Rodriguez Sequeira, who successfully defended her Master's Thesis on satellite #remotesensing of #microplastics in rivers! I had the pleasure of co-advising with Dr. Austin Gray @austindoug13.bsky.social. She presented to a standing-room-only crowd—well done, Luisana!

submitted 49 days ago • 1 comment

Do you work on lakes globally? Check out what is, to my mind, the most complete global database of lakes (~6M) and associated attributes, newly published in WRR. Also the basis for SWOT lake data. agupubs.onlinelibrary.wiley.com/doi/full/10....

submitted 92 days ago • 4 comments

What a fun paper describing rivers in North and South America that flow into multiple drainage basins. agupubs.onlinelibrary.wiley.com/doi/10.1029/...

submitted 72 days ago • 0 comments

Excited for the annual Virginia Tech Geoscience Student Research Symposium (GSRS) — a 2-day event w/ talks, poster sessions, the always-entertaining 'UpGoer Five' session, and more! It kicks off this morning and I'm looking forward to learning about all the amazing science our students are doing.

submitted 77 days ago • 0 comments

Our new paper maps wind fields over lakes using radar backscatter from SWOT and Sentinel-1 satellites. This technique achieves a much higher spatial resolution than what is available from atmosphere reanalysis products: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

submitted 79 days ago • 1 comment

A graduate student takes a stream width measurement on Stroubles Creek, Virginia Tech.

submitted 104 days ago • 1 comment

Yesterday was the darkest day of my professional life so far. Many of NSF’s best and brightest people fired indiscriminately. The terms of their firing cruel. My colleagues matter, they are valued and they make a difference. I have no words. www.npr.org/2025/02/18/n...

submitted 120 days ago • 12 comments

We are alarmed by the Administration’s actions to freeze science funding and eliminate DEI efforts and climate change initiatives, which go against AGU’s mission and harms our members. We must unite to address these changes, beginning by hearing from you. Read more: https://buff.ly/4hm8r4e

submitted 135 days ago • 12 comments

New US administration ditches Biden's plan to limit levels of PFAS manufacturers can discharge into rivers from their waste pipes. Numerous studies have linked PFAS to cancers, liver, thyroid, kidney conditions, fertility issues & harm to fetal development 🧵 www.ewg.org/news-insight...

submitted 144 days ago • 1 comment

Interested in headwater streams? Headwaters make up 77% of global river networks, but have fewer gauges, less accurate models and lesser protections than large rivers. See our review led by @goldenwater.bsky.social at www.nature.com/articles/s44...

submitted 156 days ago • 3 comments

❗One week away before Abstract submission deadline for #EGU25. ➡️Consider session HS10.5 where we invite all contributions aiming at bridging limnology and hydrology together to better connect lakes and reservoirs to their catchments 💧🧪💻 meetingorganizer.copernicus.org/EGU25/sessio...

submitted 163 days ago • 0 comments

New paper by Dongmei Feng finds an interesting pattern in global streamflow trends through time: increasing streamflow in upstream river reaches and decreasing flow in downstream reaches: www.science.org/doi/full/10....

submitted 170 days ago • 0 comments

See you when I’m 75!

submitted 179 days ago • 0 comments

Cool paper alert: Yu et al. used SWOT satellite observations of the ocean's surface height to create a global seafloor map at 8-km resolution: about twice the spatial resolution of previous global maps! science.org/doi/full/10....

submitted 186 days ago • 0 comments

The Global Rivers Group is well represented this week at #AGU. Seven current members and three alums here in DC. #AGU24

submitted 190 days ago • 0 comments

I am soon recruiting two PhDs and a postdoc, to work on carbon, methane, metabolism in arctic stream networks. Glad to chat potential opportunities during #AGU24 @agu.org ! There is also soon another postdoc position on oxygen responses to peatland restoration with @ryansponseller.bsky.social ⬇️

submitted 193 days ago • 1 comment

Same thing is happening in the field of flood forecasting

submitted 194 days ago • 0 comments

“There are just two major pacts governing nuclear weapons in the cosmos, both of which predate Neil Armstrong’s first steps on the moon,” W.J. Hennigan writes. Decades later, are they enough to protect against a new space Cold War? nyti.ms/4imfWsG

submitted 195 days ago • 10 comments

Check out this website where you can enter city or zip code to get all Hurricanes that have ever passed through that area coast.noaa.gov/hurricanes/#.... Example below for Baltimore:

submitted 196 days ago • 0 comments

Going to the #AGU24 Fall Meeting? Interested in new results from the SWOT satellite over oceans, rivers, lakes, and wetlands? We have you covered! here's a cheat sheet for SWOT-specific sessions, plus other presentations. Thanks to UNC grad student Marissa Hughes for putting this together. 🧪

submitted 197 days ago • 0 comments

New comment argues for the assimilation of SWOT surface water observations into global hydrologic models: rdcu.be/d2gPR

submitted 198 days ago • 0 comments

#NASA #Satellites Reveal Abrupt Drop In #Global #Freshwater Levels - phys.org/news/2024-11... - #GIS #spatial #mapping #remotesensing #water #waterresources #climatechange #sealevelrise #SLR #spatialanalysis #model #modeling #spatiotemporal #naturalresources #waterquality #wateruse

submitted 210 days ago • 0 comments

Great day to show our department's incoming graduate students around the Blacksburg area. Thanks @clasticdetritus.bsky.social for letting me tag along!

submitted 301 days ago • 0 comments

Happy to share that I have been selected for the 2024 Early Career Award for Applied Research by the Universities Council on Water Resources (UCOWR). Thank you to UCOWR and to the kind colleagues and mentors who nominated me.

submitted 484 days ago • 0 comments

An amazing permanent EPA career opportunity as a research watershed hydrology and biogeochemical modeler working in Cincinnati, OH! Apply by 1/17/24: usajobs.gov/job/769387500

submitted 527 days ago • 0 comments

Looking for an alternative to MDPI Remote Sensing or Remote Sensing of Environment? Check out the AAAS Science partner journal, Journal of Remote Sensing. Several of us early career folks are guest editing a "Remote Sensing of Hydrology" special issue. Consider submitting your work!

submitted 534 days ago • 0 comments

We're recruiting a new full-time technician to join the lab ahead of summer 2024! The position involves both field and lab work focused on uncovering controls on benthic cyanotoxin production in rivers. Please share with potential candidates! More info: blaszczaklab.weebly.com/current-open...

submitted 547 days ago • 0 comments

How good are new and future satellites at tracking suspended sediment in rivers? Find out in our new IEEE TGRS paper "Optimizing Satellite Mission Requirements to Measure Total Suspended Solids in Rivers" led by grad student Molly Stroud at Virginia Tech! ieeexplore.ieee.org/abstract/doc...

submitted 548 days ago • 0 comments