TC (Tirthankar Chakraborty)
@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/
| urban climate | aerosols | remote sensing | heat stress | Google Earth Engine | geospatial | machine learning |
https://tc25.github.io/
Pinned
Tirthankar "TC" Chakraborty
Tirthankar "TC" Chakraborty
...
tc25.github.io
#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!
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!
My citation collection has apparently crossed 5000, which is definitely a number.
November 6, 2025 at 3:54 PM
My citation collection has apparently crossed 5000, which is definitely a number.
Something strange is going on with @microsoft.com #Teams for the last few days, where it keeps flagging completely correct words.
Unhelpful and distracting.
I am sensing some #AI shenanigans.
Unhelpful and distracting.
I am sensing some #AI shenanigans.
October 20, 2025 at 1:09 PM
Something strange is going on with @microsoft.com #Teams for the last few days, where it keeps flagging completely correct words.
Unhelpful and distracting.
I am sensing some #AI shenanigans.
Unhelpful and distracting.
I am sensing some #AI shenanigans.
I have promised 12 people that I will do 24 things by this weekend.
I am hoping to finish 2 of those things soon. 👀
I am hoping to finish 2 of those things soon. 👀
September 29, 2025 at 1:57 AM
I have promised 12 people that I will do 24 things by this weekend.
I am hoping to finish 2 of those things soon. 👀
I am hoping to finish 2 of those things soon. 👀
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.
Looking forward to trying some Texas-style brisket😅; & yes, also presenting on several past/ongoing studies on applications of #machinelearning for #urban #microclimate.
September 20, 2025 at 6:09 PM
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.
Looking forward to trying some Texas-style brisket😅; & yes, also presenting on several past/ongoing studies on applications of #machinelearning for #urban #microclimate.
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.
September 9, 2025 at 1:13 PM
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.
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.
LinkedIn
This link will take you to a page that’s not on LinkedIn
lnkd.in
September 4, 2025 at 2:21 PM
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.
Reposted by TC (Tirthankar Chakraborty)
🌍 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
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
September 1, 2025 at 11:01 AM
🌍 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
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
Reposted by TC (Tirthankar Chakraborty)
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...
July 29, 2025 at 9:03 PM
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...
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
'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
August 1, 2025 at 4:25 PM
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
'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
July 27, 2025 at 6:07 AM
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-scale processes, consider submitting to our sessions (links below).
1. lnkd.in/gXXtKvtb
2. lnkd.in/gWuN2Yw6
July 27, 2025 at 4:09 AM
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-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.
The deadline is July 30th.
July 19, 2025 at 11:13 PM
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.
The deadline is July 30th.
Reposted by TC (Tirthankar Chakraborty)
🚨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
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
July 16, 2025 at 6:33 PM
🚨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
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
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.
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
June 17, 2025 at 11:35 PM
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.
Please share.
🚨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.
We hope the HUDI can be a starting point for informing #sustainable #urban design.
June 12, 2025 at 11:19 AM
🚨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.
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.
Here (doi.org/10.1088/1748...) is the closing editorial on this issue, which details the insights gained from these studies.
June 6, 2025 at 10:26 PM
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.
Here (doi.org/10.1088/1748...) is the closing editorial on this issue, which details the insights gained from these studies.
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.
Love the schematic PNNL's comms team made for this.
June 1, 2025 at 7:31 PM
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.
Love the schematic PNNL's comms team made for this.
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.
U-Surf is structurally consistent with the urban canyon assumption in process-based #models & addresses a longstanding data gap in these models.
May 27, 2025 at 1:27 PM
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.
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...
Also read the newsletter for other recent news on #urban #climate #science: urban-climate.org/wp-content/u...
May 20, 2025 at 8:32 PM
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...
Also read the newsletter for other recent news on #urban #climate #science: urban-climate.org/wp-content/u...
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.
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
April 30, 2025 at 1:34 PM
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.
April 27, 2025 at 3:12 PM
Reposted by TC (Tirthankar Chakraborty)
📢 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.
April 23, 2025 at 1:33 AM
📢 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.
April 23, 2025 at 1:33 AM