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TC (Tirthankar Chakraborty)

@tchakraborty.bsky.social

4.7K followers 770 following 200 posts

tc25.github.io

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Sep 4

#intro time

I go by TC & am an Earth #scientist at a DOE national lab in the #US.

I work broadly on #atmosphere-#biosphere interactions & my PhD was on impacts of #aerosols on surface #climate.

I also study #urban climate using #satellite #remotesensing, #crowdsourced data, & #models.

Yo!

Tirthankar "TC" Chakraborty Tirthankar "TC" Chakraborty ...

tc25.github.io

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 10d

I have promised 12 people that I will do 24 things by this weekend.

I am hoping to finish 2 of those things soon. 👀

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 18d

Will be in Austin next week for the Artificial Intelligence and Digital Twins for Earth Systems workshop (aidt4es.usacm.org).

Looking forward to trying some Texas-style brisket😅; & yes, also presenting on several past/ongoing studies on applications of #machinelearning for #urban #microclimate.

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 27d

Thanks, Matt!

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 27d

Thanks, Adam!

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 29d

This is a huge honor and I cannot overstate the tremendous amount of support I have received for this award and in other ways at the lab. I am also incredibly indebted to my nominator and my internal and external recommendation letter writers.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · 29d

I am flabbergasted once again; this time on being one of the recipients of the Ronald L. Brodzinski Award for Early Career Exceptional Achievement, one of the Laboratory Director’s Awards for Science and Engineering Achievement at the Pacific Northwest National Laboratory.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Sep 4

University of Massachusetts Lowell is looking for a #postdoctoral research associate to implement #system #dynamics modeling to assess #decarbonization pathways, integrate #extremeweather scenarios and #energyresilience, and engage stakeholders in exploring energy futures for #Massachusetts.

This link will take you to a page that’s not on LinkedIn

lnkd.in

Reposted by TC (Tirthankar Chakraborty)

IOPP Environment and Energy @iopp-environment.bsky.social · Sep 1

🌍 The #ERL Focus Issue on Human–Earth System Interactions under Climate Change is now complete!

Explore research on how human activities interact with Earth system processes, plus a closing editorial from the Guest Editors:
🔗 iopscience.iop.org/collections/...
#ClimateChange #OpenAccess

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Reposted by TC (Tirthankar Chakraborty)

Zeke Hausfather @hausfath.bsky.social · Jul 29

The EPA cited my paper in their argument against the endangerment finding today. However, their point is completely backwards: my paper actually supports the EPA's 2009 range of 1.8C to 4C warming by 2100. www.nature.com/artic...

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Aug 1

I am co-chairing a couple of sessions at #AMS26.

'Mapping and Modeling Urban Environments Exposures and Corresponding Health Impacts': lnkd.in/g55YHZ-C

'Weather-human-energy dynamics in urban areas': lnkd.in/gMmaGbUb

You can submit to all sessions through: lnkd.in/g_KWM5tu

Deadline: 14 August

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jul 29

I keep complaining about people submitting their abstracts too close to the deadline; and here I am...

#AGU25

@agu.org

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jul 27

Perfect.

@agu.org

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jul 27

It's the last weekend before the #AGU25 #abstract submission #deadline, which means it is finally time to submit your abstracts and crash their website.

If you are working on #urban-scale processes, consider submitting to our sessions (links below).

1. lnkd.in/gXXtKvtb

2. lnkd.in/gWuN2Yw6

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jul 19

If you are working on #urban modeling across #scales (#process-based to #hybrid to #machinelearning models), including development, benchmarking, and implementation, please submit to our #AGU25 session on this topic: lnkd.in/gTpTrw-9

The deadline is July 30th.

Reposted by TC (Tirthankar Chakraborty)

AMS Board on Environment and Health @ams-health.bsky.social · Jul 16

🚨Call for Abstracts! Submit to the 17th AMS Conference on Environment & Health at #AMS2026 by Aug 14, 2026 🗓️
See the list of topic sessions and joint sessions 🌡️🌍 🎓 Student awards available! Feel free to reach out for more info! annual.ametsoc.org/2026/program...
@ametsoc.org

17th Conference on Environment and Health

The 106th AMS Annual Meeting will take place from 25 to 26 January, 2026 in Houston, Texas.

annual.ametsoc.org

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jun 17

I am looking to hire (careers.pnnl.gov/jobs/10733?l...) a PhD #intern to work on representing #urban expansion in the Earth system models. One goal after implementing this capability would be to examine the impact of different projections of urban land on #weather extremes & #climate.

Please share.

PhD Intern - Urban Dynamics in Earth System Models in Multiple Locations | Pacific Northwest National Laboratory

PNNL is hiring a PhD Intern - Urban Dynamics in Earth System Models in Multiple Locations. Review all of the job details and apply today!

careers.pnnl.gov

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jun 12

🚨In our new paper (doi.org/10.1016/S254... in @thelancetplanet.bsky.social, we develop the Healthy Urban Design Index (HUDI) to gauge the performance of 917 cities in 4 key domains in #Europe using #opensource data.

We hope the HUDI can be a starting point for informing #sustainable #urban design.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jun 6

I had been guest editing a focus issue on 'Human-Earth System Interactions under Climate Change' for Environmental Research Letters with several of my colleagues.

Here (doi.org/10.1088/1748...) is the closing editorial on this issue, which details the insights gained from these studies.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jun 1

Older #BlueSky thread on key results of the study: bsky.app/profile/tcha...

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jan 11

📢In our just published paper in @naturegeosci.bsky.social, we use multi-year #convection permitting & #urban resolving regional #climate #model simulations over #NorthAmerica to demonstrate that #agricultural #irrigation reduces urban #heatstress. [1/n]

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Jun 1

Article (www.pnnl.gov/publications...) on a few recent papers I have contributed to, particularly our @natgeosci.nature.com paper (doi.org/10.1038/s415...) on the impact of #agricultural #irrigation in the #UnitedStates on #urban #heatstress.

Love the schematic PNNL's comms team made for this.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · May 27

Read more here: doi.org/10.5194/essd...

U-Surf: a global 1 km spatially continuous urban surface property dataset for kilometer-scale urban-resolving Earth system modeling

Abstract. High-resolution urban climate modeling has faced substantial challenges due to the absence of a globally consistent, spatially continuous, and accurate dataset to represent the spatial heter...

doi.org

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · May 27

In our recent paper in @copernicusecmwf.bsky.social Earth System Science Data, we develop #U-Surf, a global 1 km facet-level #urban property dataset.

U-Surf is structurally consistent with the urban canyon assumption in process-based #models & addresses a longstanding data gap in these models.

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TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · May 20

A summary of the results of our recent Nature Communications paper (doi.org/10.1038/s414...) is the feature article of this quarter's International Association for Urban Climate newsletter.

Also read the newsletter for other recent news on #urban #climate #science: urban-climate.org/wp-content/u...

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · May 5

The #climate pledge is dying in the U.S., but at least I have been getting a good view of its namesake arena + the #Seattle skyline. 🤷

TC (Tirthankar Chakraborty) @tchakraborty.bsky.social · Apr 30

Our recent @agu.org @eos.org article on our past and ongoing efforts at the Pacific Northwest National Laboratory to train #Earth scientists on applications of #AI and #machinelearning approaches to address real-world #research problems in the #geosciences.

Eos @eos.org · Apr 29

Earth scientists often work with extremely large datasets, trying to find patterns among noisy real-world observations. AI is well suited for such tasks, write researchers at Pacific Northwest National Lab, including @tchakraborty.bsky.social. eos.org/science-upda...

A Two-Step Approach to Training Earth Scientists in AI - Eos

Researchers learned machine learning methods during a boot camp, then applied their new knowledge to real-world research problems during a hackathon.

eos.org