Kelly Devlin

We recommend masking our pixels within fields to avoid this bias. This may be useful for those studying regions with smaller deformation signals, or who are interested in analyzing shorter-term variations or seasonality in the subsidence in California.

Map showing inferred rates from vegetation effects

We find that some crops, like cotton, can contribute up to 2-4 cm/yr of bias when inverting for displacement. This bias can be misinterpreted as subsidence, but is actually due to vegetation effects on InSAR phase.

Heatmaps showing phase bias for almonds, cotton, grapes, pistachios, tomatoes, and winter wheat over time

For each field, we isolate the effects of vegetation by taking the difference between field pixels and nearby stable pixels. We track this difference, which we call phase bias, over time for the 6 most common crops in the region.

Map of San Joaquin Valley, CA showing different crops grown there

The SJV has been experiencing 30 cm/yr of subsidence for years due to groundwater extraction/. It also contains a wide variety of crops and land cover types, leading to some very noisy InSAR data.

Evaluation of Vegetation Bias in InSAR Time Series for Agricultural Areas Within the San Joaquin Valley, CA We quantify the contribution of bias from vegetation and soil moisture effects on InSAR phase and time series We find biases of ∼2–4 cm/yr within agricultural fields, with the largest biases occu...

🚨First, first author paper alert🚨
I'm happy to share that the first part of my PhD work is now published!
We look at crop fields in the San Joaquin Valley, CA to understand how surface properties affect InSAR phase
doi.org/10.1029/2024...

I am happy to announce that my PhD defense will be on May 28th at 1 pm EDT. If anyone is interested in tuning in to find out about InSAR 🛰️, agriculture 🚜, and how to deal with messy data 📈, let me know and I can share the zoom link!

A protest graphic titled “TRUMP’S FIRST 100 DAYS” with bold red blocks reading “SCIENCE UNDER SIEGE.” Black paint drips from the top, and a grayscale crowd of protestors hold signs like “Save Science,” “Keep Your Hands Off Our Pipettes,” and “No Science, No Future.” A U.S. flag waves on the right.

🚨SCIENCE UNDER SIEGE: TRUMP’S FIRST 100 DAYS 🚨

In his first 100 days, Trump has declared war on science—slashing budgets, censoring facts, and meddling in research. From climate to cancer care, real lives are at risk.

Here’s a thread on Trump’s assault on science so far—and why it matters: (🧵)

Opinion | The Uncertain Fate of the Young American Scientist (Gift Article) Young researchers are choosing between staying in science and staying in the United States.

www.nytimes.com/2025/04/03/o...

Really important piece to share widely. Too many Americans don’t know how severe a threat this Administration poses to our scientific infrastructure, global leadership, and health security

New Yorkers: Call Sen. Gillibrand’s office to vote NO on cloture and NO on the Republican Spending Bill.

They vote in the morning.
☎️: (202) 224-4451

If you have experienced direct harm to your work/lab/job due to recent changes at US NSF, & are willing to share this on behalf of the Am. Society of Naturalists and NSF, please DM/ email me ASAP (this is time-sensitive) or submit story here sites.google.com/view/scienti...
Please share widely

This is fascism.

Civil Service Strong: Resources for Civil Servants Effective. Impartial. Resilient. The civil service comprises dedicated, nonpartisan federal employees who work tirelessly across the country and around the world to ensure the effective delivery of go...

To probationary federal employees who have been terminated:

Democracy Forward has filed a first-of-its-kind class-wide complaint with the Office of Special Counsel. If civil servants want to join in the complaint, you can email info@civilservicestrong.org

Found out that TWENTY emails is considered a lot to politicians on an issue.

TWENTY.

As in, they call that getting slammed.

So next time you see a request to email your rep, or call, keep that in mind.

TWENTY is a lot.

I sincerely don’t know why people aren’t physically stopping those dorks. Move shit. Lock doors. Lose the keys. Everyone switch seats. Turn off all the lights. Switch the signs on the elevator lobby. Make the settings all silly. Use a different language. Wear costumes. Fill rooms with balloons

Graffiti at Philly’s schukyll river walk reading: FUCK ICE FUCK TRUMP & MUSK GO BIRDS

seen in Philadelphia:

FUCK ICE
FUCK TRUMP + MUSK
GO BIRDS

I started using Libby through my library a few years ago and now I am constantly listening to audiobooks. It has changed how I “read” books and got me back to my love of reading.

Libraries rule!

Lots of new followers, welcome! Using the opportunity to re-up this- we start looking at applications on Dec 1.

Woman standing in front of a research poster titled "Beast Quake (Taylor's Version)"

If you see only one poster at #AGU23, let it be @geophysichick.bsky.social 's Taylor Swift seismology!

If anyone suffers from the AGFlu next week, my volcano tissue box covers will make using tissue after tissue on your road to recovery a somewhat more bearable experience :-)

Excited and anxious for AGU to get started! Start your week on a high note and come see me talk about topography change at volcanoes at 8:50AM tomorrow in MC 2002 West!

🚨New paper alert!🚨 doi.org/10.1029/2023...

Measuring topographic change at volcanoes is really important! Topographic data are used in modeling volcanic hazards and monitoring deformation. Volcanoes are dynamic environments so we need to update these datasets frequently. (1/5)

A picture of the Mandalorian with the caption "This is the way"

Cornell University Department of Earth and Atmospheric Sciences has posted 11 Ph.D. positions. Apply by Jan. 1: gradschool.cornell.edu/admissions/

More details at: findajob.agu.org/job/8021643/...

So far both mornings of Fringe involve me frantically IDing the birds I see between the dorms and the dining hall