I have promised 12 people that I will do 24 things by this weekend.
I am hoping to finish 2 of those things soon. π
@tchakraborty.bsky.social
Earth Scientist @ Pacific Northwest National Lab; previously Yale (PhD '21); more previously IIT Kanpur (M.Tech '15) | urban climate | aerosols | remote sensing | heat stress | Google Earth Engine | geospatial | machine learning | https://tc25.github.io/
I have promised 12 people that I will do 24 things by this weekend.
I am hoping to finish 2 of those things soon. π
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 brisketπ
; & yes, also presenting on several past/ongoing studies on applications of #machinelearning for #urban #microclimate.
Thanks, Matt!
11.09.2025 15:31 β π 0 π 0 π¬ 0 π 0Thanks, Adam!
11.09.2025 15:31 β π 1 π 0 π¬ 0 π 0This 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.
09.09.2025 13:13 β π 1 π 0 π¬ 1 π 0I 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 Directorβs Awards for Science and Engineering Achievement at the Pacific Northwest National Laboratory.
09.09.2025 13:13 β π 13 π 0 π¬ 2 π 0University 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.
04.09.2025 14:21 β π 1 π 0 π¬ 0 π 0π The #ERL Focus Issue on HumanβEarth 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:
π iopscience.iop.org/collections/...
#ClimateChange #OpenAccess
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...
29.07.2025 21:03 β π 713 π 283 π¬ 18 π 24I 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
I keep complaining about people submitting their abstracts too close to the deadline; and here I am...
#AGU25
@agu.org
Perfect.
@agu.org
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
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.
π¨Call for Abstracts! Submit to the 17th AMS Conference on Environment & Health at #AMS2026 by Aug 14, 2026 ποΈ
See the list of topic sessions and joint sessions π‘οΈπ π Student awards available! Feel free to reach out for more info! annual.ametsoc.org/2026/program...
@ametsoc.org
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.
π¨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.
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.
Older #BlueSky thread on key results of the study: bsky.app/profile/tcha...
01.06.2025 19:31 β π 0 π 0 π¬ 0 π 0Article (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.
Read more here: doi.org/10.5194/essd...
27.05.2025 13:27 β π 1 π 0 π¬ 0 π 0In 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.
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...
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. π€·
05.05.2025 19:55 β π 0 π 0 π¬ 0 π 0Our 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.
30.04.2025 13:34 β π 1 π 0 π¬ 0 π 0This presentation is on Friday and covers results from a few studies, including doi.org/10.1126/scia..., doi.org/10.1029/2022..., doi.org/10.1088/1748..., and doi.org/10.1016/j.uc....
27.04.2025 15:13 β π 1 π 0 π¬ 0 π 0I was also invited to give a talk in the "Nature based Solutions to address growing risk of Urban Heat Islands interacting with Climate Change" session. For that, I will be complaining about using #satellite-derived land surface #temperature to estimate the #cooling benefits of urban #vegetation.
27.04.2025 15:12 β π 0 π 0 π¬ 1 π 0First, tomorrow (if I can wake up on time), I will be giving an overview of our last year's study (doi.org/10.1016/j.on...) examining the impact of #urban evolution (urban growth + changes in urban properties over time) on #continental to #regional-scale #warming.
27.04.2025 15:12 β π 0 π 0 π¬ 1 π 0I am attending #EGU25 virtually this year.
I have a couple of presentations:
π’ In our recently published paper in Nature #Climate Change, we show that, when we consider the entire #annual cycle, the protective effects of the #urban #heat island during the coldest periods exceed (by over 4 times) the adverse effects during the warmest periods for most non-tropical #cities.
23.04.2025 01:33 β π 8 π 5 π¬ 1 π 1