Danny White

Lens of Time: A Watershed in Motion - bioGraphic Where does our water come from, how do the variations in its flow affect the ecosystems it feeds, and how can timelapse photography help land managers understand and protect this valuable resource?

📣 For all you geomorphology nerds 📣

Solar-powered cameras along the Platte River capture millions of photographs to document how the watershed has changed, and is changing still. As one scientist put it: "Imagery is a way to observe a place in timescales that is just not possible in other ways.”

The impact of invasive fishes lasts a lifetime -
we found lifetime trophic shifts in native species using fish eye lens stable isotope analysis coupled with otolith growth measurements 🐟 👁️ 📈

Check out the new pub with @oldenfish.bsky.social
esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Inferring River Discharge from Google Earth Images - Eos Critical flow theory can predict river discharge based on the spacing of standing waves captured by Google Earth images.

✨Editor's Pick✨

In Geophysical Research Letters, researchers show that critical flow theory can predict river discharge based on the spacing of standing waves captured by Google Earth images.

🔗 Learn more in @eos.org : buff.ly/TdaH31L

#AGUPubs #STEM #EarthScience #Hydrology #RemoteSensing

Cave records reveal recent origin of North America’s deepest canyon | PNAS We explore how and when Hells Canyon, North America’s deepest river gorge (~2,400 m deep), formed, addressing these fundamental questions first pos...

After 15 years of thinking and work, I'm very proud to share that I finally know how old Hells Canyon - the deepest fluvial gorge in North America is - ~2.1 Ma.

For more details see our recent article in @pnas.org
www.pnas.org/doi/abs/10.1...

Image of the title page of "Science: The Endless Frontier - A Report to the President" by Vannevar Bush, OSRD Director, July 1945

Question for our congress reps:

July 2025 marks the 80th anniversary of the report that led to the founding NSF & NIH, elevating the US from scientific backwater to world leader in research & discovery. Is now the time to surrender that leadership? If not, what are you doing to prevent it?

Research slide titled 'MY RESEARCH' showing two key visuals: A diagram of Intensively Managed Landscapes (IMLs) from Kumar et al., 2018 illustrating land use, climate change, and ecological impacts, and a map of the Upper Sangamon River Basin in Central Illinois showing upstream and downstream gaging stations. Text explains research on sediment dynamics in IMLs and between different stream locations.

Slide titled 'Watershed Scale' featuring photos of water sampling equipment. Main image shows an automated pump sampler mounted on a bridge with a pump intake extending into the river. Inset shows the sampler device itself, and below is a row of numbered water sample bottles containing sediment samples of varying turbidity

Slide titled 'Reach Scale' showing a winter/early spring floodplain photo with labeled equipment: sediment trap, tilt current meter, stage recorder, and floodplain siphon sampler. Text describes research exploring sediment dynamics across different geomorphic environments in the floodplain during flood events.

Exploring rivers at every scale! Chelsy's research in Central Illinois examines how sediment moves through our waterways, from entire watersheds down to specific river reaches 🌊 #AGUEPSP #EPSPtakeover #RiverScience

Where the Savior Fish Still Swims In an era of collapse, a fabled fish keeps coming back to Nisga’a nation.

Salmon get all the limelight on the Pacific Northwest coast, but for hundreds of years this tiny, lesser-known fish saved the lives of humans and predators, fueled a vast trade network, and played a critical role in cultural cohesion of Indigenous communities.

Our latest feature:

A dark blue background with white text and red star burst accents. The main text reads 'CONCERNED ABOUT FEDERAL ACTIONS THAT ARE IMPACTING SCIENCE?' followed by 'Join our new Slack Community!' The AGU EPSP logo appears in the top right corner.

🚨 EPSP community: We're creating a space to discuss federal actions impacting science.
Join our new Slack community where surface process scientists can collaborate on meaningful responses to current challenges.
DM us or @jscheingross.bsky.social for an invite #AGUEPSP #ScienceCommunity #Geoscience

still figuring this out

A Lesser Evil. acrylic on linen, 120cm x 120cm.

An illustration showing four diverse students sitting around a table having a meeting. Text above reads 'JOIN THE STUDENT COMMITTEE' with bullet points listing committee responsibilities including organizing networking opportunities, facilitating peer mentoring, gauging student interest, and planning AGU Fall Meeting events. The AGU EPSP logo and application deadline of March 1, 2025 are shown at the bottom.

Our Student Committee is currently recruiting new members! Joining the committee is a great way for students to get involved in our community, interact with other students from around the world and more. #AGUEPSP #EarthScience #Students

Apply using this form before March 1: https://buff.ly/40JgaSJ

A promotional image for AGU EPSP's Zoom Coffee Hour featuring December and January early career spotlights Shayla Triantafillou and Karin Lehnigk, scheduled for January 29th at 2pm ET and 11am PT. The design includes a QR code for registration, an illustrated coffee cup, and decorative curved shapes in rust red against a cream background.

☕️ New year, new Coffee Hour! Connect with AGU EPSP's featured early career researchers Shayla Triantafillou and Dr. Karin Lehnigk on Wednesday, January 29th at 14:00 NYC, 11:00 San Francisco.

Register through QR code or at: forms.gle/v5k8Qy8sG5Pp...

Towards a comprehensive river barrier mapping solution to support environmental management - Nature Water This Review examines methods for mapping river barriers, emphasizing the potential consequences of a lack of data on smaller barriers. It highlights the need for improved mapping approaches to support...

Human barriers are replete across the world! This paper just out in Nature Water aims to advance a more comprehensive river barrier mapping solution to support environmental management
www.nature.com/articles/s44... @jjopperman.bsky.social @americanrivers.bsky.social @wwf-water.bsky.social

😱😍🐟

not now babe I’m memorizing the cutthroat trout phylogenetic tree

Day 4 of #AGU24 is upon us! Don't forget to attend the Sharp Lecture this afternoon with @agunn.bsky.social at 4pm in Ballroom B!
#EPSPatAGU #AGWOO

🚨🚨🚨 Paper Alert 🚨🚨🚨
There is no better way then using my first BlueSky post with a #paper alert!
Our new research reveals that migrating dunes capture clay flocs. #FlumeFriday. With far-reaching consequences. Read all about it here: lnkd.in/eWNDf6eE #proud

The Rough Fish Revolution - bioGraphic Fisheries scientists are only now coming to understand the important roles native “rough fish” play in freshwater ecosystems across North America—even as these long-maligned species are increasingly a...

Here’s a story I’ve been working on for a couple years, about the most important conservation issue you’ve never heard of.
www.biographic.com/the-rough-fi...

Relative elevation model of Powder River near Broadus, Montana. So fun to see the floodplain features pop with a bit of color!

How does morphology relate to stratigraphy in #meandering rivers? Here is a modeled example, using #meanderpy

Woo!!

I started a ‘fluvial geomorphology & related river science’ starter pack for those of you joining us at Bluesky &and those wanting to build the community! Let me know if you want to be added— I’m sure I’ve missed lots of people.

go.bsky.app/S5RPXHk

I’m hoping to pick up a Met-Flow UVP as a Vectrino profiler replacement. Happy to fill you in on what I’ve learned about it so far.

Nooo! 😭

Shovelnose Sturgeon in Powder River! #ecohydraulics

It’s been so fun to follow the progress of Vanessa’s research and very exciting to see this excellent manuscript published!

All of these photos are so great

🚨 New publication 🚨 We present a method to remotely map headwater stream channel incision using repeat lidar. Provides detailed spatial info about channel stability across all streams in the watershed. Focuses on the Maryland Piedmont. Check it out, doi.org/10.1016/j.ge....

Dartmouth College invites applications for a Guarini Dean’s Postdoctoral Fellowship in the Department of Earth Sciences, spanning all disciplines studied in the Department. Applications are open now; review begins February 15! apply.interfolio.com/138866