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Disclaimer: this website is composed of symbols and images that do not in themselves carry meaning outside of a total social situation which none of us choose.


Hi, I'm Drew. My boneless, GMO-free, low-sodium website is lovingly built from whatever I decide to post online. For that reason, it has a lot of stuff on it. Navigate as follows:

Computer!

If you are interested in HUMAN CONTACT: I can be reached at drew [at] drewpendergrass [dot] com, or at the academic address in my CV. For upcoming events, check out my events page. If you want to follow my work, you can subscribe to my newsletter below (expect emails every six months or so at most):


The latest science!

Pendergrass, D. C., Jacob, D. J., Nesser, H., Varon, D. J., Sulprizio, M., Miyazaki, K., & Bowman, K. W. (2023). CHEEREIO 1.0: A versatile and user-friendly ensemble-based chemical data assimilation and emissions inversion platform for the GEOS-Chem chemical transport model. Geoscientific Model Development, 16(16), 4793–4810. Link to paper (open access). Link to PDF.

CHEEREIO workflow diagram

Figure: Schematic of CHEEREIO runtime routines and job control procedures. CHEEREIO is run as an array of m separate jobs on a computational cluster, one for each ensemble member. These m jobs, operating in parallel, alternate between running GEOS-Chem and running the LETKF algorithm for a subset of grid cells, as shown by the light yellow boxes; the m jobs are coordinated by a single job controller shared by the entire ensemble (shown in light red), ensuring that the ensemble remains synchronized. Boxes in blue show data input into CHEEREIO processes.


You can learn more about my research on the projects page, or you can read through all of our scientific papers and presentations on their respective pages.

All the cool kids are using CHEEREIO!

CHEEREIO is a tool that uses observations of pollutants in the atmosphere, measured from satellites or surface stations, to correct supercomputer models that simulate the Earth. One powerful use case for CHEEREIO is catching polluters, even if there are no local observations on the ground. Read more on my projects page or the offical CHEEREIO site.

Logo for CHEEEREIO software, with name in black going through a globe schematic in yellow.

A Brief Q&A

Q. How can I contact you or keep up with your work?

A. You can reach me at drew [at] drewpendergrass [dot] com (or the academic address in my CV); I'm pretty quick with email. However, if your email is unpleasant, you should direct it to grievances@drewpendergrass.com, an inbox I definitely read.

If you want to keep up with new projects, the best way is to subscribe to my newsletter. I send short emails a few times a year with major updates on science and writing. I keep my social media limited these days, but you can follow/DM me on Bluesky. My old Twitter is still up, but I don't use it anymore.

Q. Who are you?

A. Well, to start off, I have absolutely no intention of running for Senate in the great state of Minnesota, I accept the axiom of choice, I keep the old gods, I have no trouble distinguishing my right from my left, and I have never commanded an army composed of more than 100,000 soldiers. Besides that, I am a doctoral student in Environmental Engineering at Harvard University, and I freelance on the side for publications including Harper's and The Guardian. I'm also at work on a sci-fi novel and have a book under contract with Verso on economic democracy. In my activism and organizing, we work to make ecological democracy a reality in my home of Massachusetts. I am also a long-time steward in the Harvard Graduate Students Union (UAW local 5117). For more information, you can check out my projects page or my CV.

Q. Why does this page keep changing?

A. This page is randomly generated by the server on each load. Most of the page's contents are not displayed on one particular load, so for the full experience reload a bunch of times.

This website proudly supports Otto Neurath and the ISOTYPE picture language

Neurath

Please represent all social facts pictorially in your correspondence with the owner and proprietor of this website. Do your part to help build a pluralistic and anti-metaphysical theory of knowledge.

Some true statements

my mind's eye exists only in a figurative sense ... I have nothing to do with explosions ... I am not a substitute for a medical doctor ... I am not reptilian ... I proudly possess object permanence ... I did not orchestrate the Camp David Accords ... I appreciate knowledge of the outcome of a given situation ... to my knowledge, there is no portrait of me that ages in my place ... I am not to my knowledge a victim of a mummy's curse ... I have never advocated on behalf of, or against, the Free Silver movement ... you cannot prove I have sympathies for the former state of Burgundy ... I have never traveled to an exoplanet ... I hold no world records ... I am reluctant to resort to black magic ... I am not a closed, non-orientable, boundary-free manifold ...

Play Alchemy!

"So fun you won't even need friends!"


Box Cover You should google Graham Starr