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Ehsan Erfani, PhD

@ehsansci.bsky.social
213 followers 98 following 54 posts

Assistant Professor @DRIScience 🏜️ Atmospheric Science, Cloud Physics & Modeling 🌦️💻 former: @UW GMU_COS 🏙️ Ph.D. @UNevadaReno 🎓 RT≠endorsement

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Ehsan Erfani, PhD @ehsansci.bsky.social · 17/09/2026
📢Our new paper: “Isolating the contribution of local and non-local shortwave flux biases towards climatological sea surface temperature and precipitation biases within a coupled climate model” 🔗Link in comments 👇 #DRIscience #radiation #remotesensing #ocean #atmosphere
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EGU Atmospheric Sciences Division @egu-as.bsky.social · 11/02/2026
New blog post is up! Read about @ehsansci.bsky.social community project and why marine clouds are so important for our climate and how to study them in more detail! #scicomm
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Roxana Cremer @cloudcycling.bsky.social · 11/02/2026
Another blog post is online, slowly I settle into my chief editor role! ✍️ it is always great reading about new research and working with the authors to make it approachable for more scientists! #scicomm #outreach #egublog
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Ehsan Erfani, PhD @ehsansci.bsky.social · 10/02/2026
📢 Our preprint is now available:🧾 “Isolating the contribution of local and non-local shortwave flux biases towards climatological sea surface temperature biases within a coupled climate model.” ☀️🌊 🔗 Link in comments 👇 #DRIscience #solar #radiation #simulation #remotesensing #ocean #atmosphere
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Ehsan Erfani, PhD @ehsansci.bsky.social · 09/02/2026
New EGU Atmosphere blog post about our work is out! 📘 A library of Lagrangian trajectories is developed to study marine stratocumulus clouds & aerosol–cloud interactions under realistic conditions. ☁️ Thanks to @egu-as.bsky.social editorial team for the great support! 🙌 🔗 blogs.egu.eu/divisions/as...
blogs.egu.eu
Building a library of observed air mass trajectories to study aerosol-cloud interactions
Marine low clouds, such as stratocumulus, play a central role in regulating Earth’s climate by reflecting incoming sunlight back to space. Yet these clouds are notoriously difficult to simulate and pr...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 21/01/2026
Excited for #AMS2026 in Houston! 📍 Next week, I’ll be presenting on building a large-eddy simulation (LES) library for marine low clouds. 💻📡☁️ Looking forward to connecting and chatting about #clouds, #aerosols, and more! @ametsoc.org #DiscoverDRI #LES #AMS106
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Ehsan Erfani, PhD @ehsansci.bsky.social · 16/01/2026
🔈 At #AMS2026, I will chair a session on Precipitation, Weather Modification, and Climate Intervention within the Aerosol-Cloud-Climate Interactions Symposium. 📍 Join us on Tuesday, 27 Jan, in Houston or online 🔗 Link in comments @ametsoc.org #MCB #CCT #cirrus #cloud #aerosol #DiscoverDRI #AMS106
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Ehsan Erfani, PhD @ehsansci.bsky.social · 12/01/2026
📄 My paper has just been published in ACP! “Constraining a Radiative Transfer Model with Satellite Retrievals: Contrasts between cirrus formed via homogeneous and heterogeneous freezing and ...” (link in comments) #Cirrus #Cloud #Aerosol #DiscoverDRI #EGU #ACP #RemoteSensing #RadiativeTransfer
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Ehsan Erfani, PhD @ehsansci.bsky.social · 12/08/2025
Excited to see our paper published in ACP! "Building a comprehensive library of observed Lagrangian trajectories for testing modeled cloud evolution, aerosol–cloud interactions, and marine cloud brightening" acp.copernicus.org/articles/25/... #DiscoverDRI #aerosol #cloud #LES #EGU #Copernicus #ACP
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Ehsan Erfani, PhD @ehsansci.bsky.social · 11/07/2025
Please consider submitting an abstract to our #AMS2026 session on cloud & precipitation responses to aerosol pollution..., organized by Troy Zaremba and me, as part of aerosol-cloud-climate symposium at #AMS106 in Houston, Jan 26. #cloud #aerosol #DiscoverDRI @ametsoc.org @zmann3000.bsky.social
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Ehsan Erfani, PhD @ehsansci.bsky.social · 11/07/2025
Please consider submitting an abstract to our #AMS2026 session on cloud & precipitation responses to aerosol pollution..., organized by Troy Zaremba and me, as part of aerosol-cloud-climate symposium at #AMS106 in Houston, Jan 26. #cloud #aerosol #DiscoverDRI @ametsoc.org @zmann3000.bsky.social
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Ehsan Erfani, PhD @ehsansci.bsky.social · 25/03/2025
Happy to share that our preprint is published on EGUsphere: "Constraining a Radiative Transfer Model with Satellite Retrievals: Implications for Cirrus Cloud Thinning" doi.org/10.5194/egus... #Cirrus #Cloud #Aerosol #EGUsphere #ACP #RemoteSensing #RadiativeTransfer @driscience.bsky.social
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Jessica Tierney @leafwax.bsky.social · 04/02/2025
Our Pliocene paper is featured in @eos.org ! eos.org/research-spo...
eos.org
Ancient Climate Reconstruction Links Past and Future - Eos
A new map of climate conditions during the Pliocene epoch—the last time Earth’s carbon dioxide concentrations hit 400 parts per million—could offer clues about possible climatic changes in store for t...
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Jessica Tierney @leafwax.bsky.social · 30/01/2025
It's been such a crazy week, I haven't had time to post about it yet...but yeah, we have a new paper out 🎉 in @aguadvances.bsky.social about the Pliocene - the last time Earth experienced CO2 level like we have now. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Pliocene Warmth and Patterns of Climate Change Inferred From Paleoclimate Data Assimilation
Pliocene sea-surface temperature (SST) data are assimilated with model simulations from pliocene modeling intercomparison project phase 2 (PlioMIP2) and Community Earth System Model (CESM) The mi...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 30/01/2025
It was a pleasure to collaborate on this fascinating work, now published in AGU Advances! 📖 Pliocene Warmth and Patterns of Climate Change Inferred From Paleoclimate Data Assimilation agupubs.onlinelibrary.wiley.com/doi/10.1029/... #DRIscience #AGUPubs #OpenAccess @agu.org @aguadvances.bsky.social
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Ehsan Erfani, PhD @ehsansci.bsky.social · 12/01/2025
Happy to announce our book chapter, Cirrus Cloud Thinning (CCT), is now published! 📖☁️ We discuss the need for a better representation of cirrus cloud processes in models to validate CCT efficacy. onlinelibrary.wiley.com/doi/10.1002/... #Clouds #Aerosols #Arctic #Research #Wiley #DiscoverDRI
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Ehsan Erfani, PhD @ehsansci.bsky.social · 06/01/2025
Next week at #AMS2025 in New Orleans, I will talk about improving cirrus cloud modeling using satellite observations📡☁️ Looking forward to meeting and discussing about #cloud, #aerosol, #satellite, & more! @driscience.bsky.social @ametsoc.bsky.social #cirrus #remotesensing #radiation #GCM #AMS105
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Ehsan Erfani, PhD @ehsansci.bsky.social · 30/12/2024
I'm excited to co-chair an #AMS2025 session on Precipitation, Weather Modification & Climate Intervention within Aerosol-Cloud-Climate Interactions Symposium! Join us Monday, 13 Jan, in New Orleans or online! @ametsoc.bsky.social @driscience.bsky.social #MCB #CCT #cloud #aerosol #DiscoverDRI
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Ehsan Erfani, PhD @ehsansci.bsky.social · 12/12/2024
Honored to be an awardee in the DRI's Institute Project Assignments (IPA) competition for my proposal on marine low cloud formation! Huge thanks to @driscience.bsky.social for the support—excited to get started. #satellite #clouds #radiation #DiscoverDRI #FundingSuccess #Nevada
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Ehsan Erfani, PhD @ehsansci.bsky.social · 30/10/2024
The #Micro2MacroWorkshop was incredibly productive! Had the chance to share my research & gain valuable insights from excellent presentations & engaging breakout sessions on improving models & observations. Thanks to USCLIVAR, UCAR, UW & organizers! #cloud #aerosol #radiation
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Ehsan Erfani, PhD @ehsansci.bsky.social · 29/10/2024
Happy to share that our manuscript is now available on EGUsphere! We introduce a novel approach to identify a reduced number of representative cases from various observed environmental conditions in the Northeast Pacific. #egusphere #ACP #aerosol #cloud #Lagrangian #LES doi.org/10.5194/egus...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 17/09/2024
Happy to share that my proposal has been funded! A big thank you to NV NASA EPSCoR for supporting my research on the climate dynamics of cirrus clouds. 🌍☁️ #Cirrus #cloud #radiation #ENSO #NASA #EPSCoR #Nevada #DiscoverDRI #FundingSuccess
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Ehsan Erfani, PhD @ehsansci.bsky.social · 12/08/2024
Reminder: Abstract submission for our #AMS2025 session is due in 3 days—Aug 15! Join us in the Weather Modification & Climate Intervention session, organized by Michael Diamond, Troy Zaremba, & myself: annual.ametsoc.org/index.cfm/20... #cirrus #stratocumulus #cloud #aerosol #MCB #CCT #AMS105
annual.ametsoc.org
17th Symposium on Aerosol–Cloud–Climate Interactions
The 105th AMS Annual Meeting will take place from 12 to 16 January, 2024 in New Orleans, Louisiana.
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Ehsan Erfani, PhD @ehsansci.bsky.social · 14/07/2024
Satellite images showing the development of a pyroCb cloud from the Falls Fire in Oregon, USA. Animation created from #GOES West #satellite imagery on the #CIRA website #pyrocumulonimbus #cloud #pyroCb #wildfire #smoke #FallsFire #OrWildFire #orwx
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Ehsan Erfani, PhD @ehsansci.bsky.social · 11/07/2024
Good news! Our paper in the AGU Journal of Geophysical Research is among the most read (top 10%). "Simulating aerosol lifecycle impacts on the subtropical stratocumulus‐to‐cumulus transition using large‐eddy simulations" doi.org/10.1029/2022... #AGU #JGR #JGRA #clouds #LES
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Ehsan Erfani, PhD @ehsansci.bsky.social · 22/06/2024
'Warming stripes' data visualizations for the USA and Las Vegas, highlighting the impact of climate change. #ShowYourStripes #DiscoverDRI showyourstripes.info
showyourstripes.info
Show Your Stripes
Visualising how the climate has changed for every country across the globe
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Ehsan Erfani, PhD @ehsansci.bsky.social · 13/06/2024
I'm co-organizing an #AMS2025 session on weather modification and climate intervention within the aerosol-cloud-climate interactions symposium. Please consider submitting an abstract! #cirrus #stratocumulus #cloud #aerosol #MCB #CCT #DiscoverDRI #AMS105
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Ehsan Erfani, PhD @ehsansci.bsky.social · 24/05/2024
The iridescence is due to light scattering by very small cloud particles (< 10 µm) ❄️ A large number of very small ice particles is characteristic of homogeneous ice nucleation, occurring in the absence of aerosols. #iridescence #cirrus #ice #cloud #radiation Photo: Tuoi Tre News
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Ehsan Erfani, PhD @ehsansci.bsky.social · 04/05/2024
I created an introductory note for useful relationships in cirrus & ice clouds: "Estimating microphysical properties of ice clouds for climate modeling and remote sensing applications" doi.org/10.31223/X5K... #cirrus #ice #cloud #microphysics #modeling #mixedphase #remotesensing
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Ehsan Erfani, PhD @ehsansci.bsky.social · 10/04/2024
Happy to share this insightful summary of groundbreaking field measurements on aerosol-cloud interaction for MCB🌥️, led by UW scientists in San Francisco, CA. Honored to collaborate w/ experts in this critical research area. #Climate #Clouds #Aerosols #DiscoverDRI www.silverlining.ngo/new-climate-...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 08/04/2024
Did you catch the Solar Eclipse? Real-time view over the Pacific Ocean, Mexico, and parts of the USA captured by GOES-East satellite #Eclipse2024 #EclipseSolar2024 #TotalSolarEclipse2024 #GOES #satellite #CIRA
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Ehsan Erfani, PhD @ehsansci.bsky.social · 06/04/2024
Development of a Snow Growth Model for Rimed Snowfall doi.org/10.31223/X5Q... #ice #cloud #microphysics #modeling #snow #mixed-phase #remotesensing
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Ehsan Erfani, PhD @ehsansci.bsky.social · 18/02/2024
If you're at the GRC climate eng., please stop by our posters presented by Drs. Mitchell and Kumar on Monday and Tuesday. #cirrus #cloud #DiscoverDRI #saellite #remotesensing #radiativetransfer #GCM #climatemodel #simulation
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Ehsan Erfani, PhD @ehsansci.bsky.social · 16/02/2024
Next week, DRI scientists will present research on cirrus clouds using obs. & models at Gordon Research Conference (GRC) on climate eng. While I won't be there, I'm proud of my contributions! #cirrus #cloud #DiscoverDRI #saellite #remotesensing #radiativetransfer #GCM #simulation
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Ehsan Erfani, PhD @ehsansci.bsky.social · 16/02/2024
Sharing my colleague's paper: "A new look into the impacts of dust radiative effects on the energetics of tropical easterly waves" has been published and is available in the Atmospheric Chemistry and Physics (ACP) journal: t.co/9scn9rUnMx
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Ehsan Erfani, PhD @ehsansci.bsky.social · 10/02/2024
Interesting observation! It seems that 🛰️ Aqua/MODIS cloud fraction retrieval detects 🌋 plume as cloud, whereas cloud effective radius retrieval is more accurate. #Satellite imagery via #NASA #Worldview (8 Feb) #Reykjanes #Grindavik #Iceland #volcano #Eruption #cloud #aerosol
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Ehsan Erfani, PhD @ehsansci.bsky.social · 01/02/2024
#AMS2024 annual meeting was incredibly productive! Engaging discussions with friends, collaborators, and new connections. Learned so much from presentations, and shared my research too. Looking forward to the next one! @ametsoc #stratocumulus #cirrus #clouds #DiscoverDRI #AMS104
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Reposted by Ehsan Erfani, PhD
Ehsan Erfani, PhD @ehsansci.bsky.social · 22/01/2024
Next week, I'll present two talks at #AMS2024 in Baltimore, MD about modeling marine low clouds and cirrus clouds. I'd be happy to meet and discuss relevant topics. @ametsoc #cirrus #stratocumulus #cloud #aerosol #satellite #remotesensing #radiation #LES #GCM #DiscoverDRI #AMS104
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Ehsan Erfani, PhD @ehsansci.bsky.social · 22/01/2024
Next week, I'll present two talks at #AMS2024 in Baltimore, MD about modeling marine low clouds and cirrus clouds. I'd be happy to meet and discuss relevant topics. @ametsoc #cirrus #stratocumulus #cloud #aerosol #satellite #remotesensing #radiation #LES #GCM #DiscoverDRI #AMS104
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Ehsan Erfani, PhD @ehsansci.bsky.social · 22/01/2024
Left by UW CIMSS looks like "marine cold-air outbreaks" that occur in extratropics & are characterized by stratocumulus-to-cumulus transition (SCT). Reminds me of SCTs in subtropical oceans that I've studied. Check my #JGR paper & #ams2024 talk. agupubs.onlinelibrary.wiley.com/doi/full/10.... #cloud
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Ehsan Erfani, PhD @ehsansci.bsky.social · 20/01/2024
Leaving for #AMS2024 annual meeting in Baltimore, MD, in a week and wondering about potential weather impacts on your travel? ECMWF prediction for precipitation type. #AMS104 #ECMWF #precipitation #rain #snow #mdwx #uswx #Weather
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Ehsan Erfani, PhD @ehsansci.bsky.social · 19/01/2024
Satellite imagery also shows the snow band ❄️in the shape of a snake 🐍 or spiral 🐚 over Lake Michigan due to the Lake Effect. From #GOES East 🛰️ via #CIRA #miwx #inwx #snow #ice #cloud #breeze #remotesensing
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Ehsan Erfani, PhD @ehsansci.bsky.social · 11/01/2024
Capturing the intensity of a snow band over Nevada and California in these satellite images over the past 24 hours. Heavy snow blankets Reno and the Sierra Nevada Mountains. Stay safe. From #GOES west #satellite via #CIRA #nvwx #cawx #reno #snow
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Ehsan Erfani, PhD @ehsansci.bsky.social · 08/12/2023
If you're at the AGU conference and interested in Paleoclimate, don't miss this great talk: "Patterns of Pacific sea-surface temperatures during the Pliocene" Glad to be a (minor) part of this work. #AGU23 #Pacific #Paleoclimate #Pliocene #Climate #Simulations agu.confex.com/agu/fm23/mee...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 21/11/2023
"Simulating aerosol lifecycle impacts on the subtropical stratocumulus‐to‐cumulus transition using large‐eddy simulations" in Journal of Geophysical Research #JGRA #2022 Precipitation regulates contributions of cloud adjustments to radiative forcing. agupubs.onlinelibrary.wiley.com/doi/10.1029/...
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Ehsan Erfani, PhD @ehsansci.bsky.social · 14/11/2023
Good to see our research at @GeorgeMasonU is linked to @UN Sustainable Development Goals! Paper: "Evaluating storm surge predictability on subseasonal timescales for flood forecasting applications: ..." #SDGs #GlobalGoals #StormSurge #UN #AOES @MasonAOES t.co/2wuQBzRf49
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Ehsan Erfani, PhD @ehsansci.bsky.social · 07/11/2023
First day at the Earth's Radiation Budget (ERB) Science Meeting in Boulder, Colorado. Impressive talks! Presented my poster on marine cloud brightening using PCA and LES, and had productive discussions. #marine #stratocumulus #cumulus #cloud #aerosol #radiation #DRIscience
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Ehsan Erfani, PhD @ehsansci.bsky.social · 25/10/2023
I will be presenting two talks at #AMS2024 Topics: - Modeling of Cirrus Cloud Thinning - Marine Cloud Brightening Using an LES Excited to have conversations about current & future research areas. #cirrus #stratocumulus #cloud #aerosol #saellite #remotesensing #AMS104 #DiscoverDRI
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Ehsan Erfani, PhD @ehsansci.bsky.social · 17/08/2023
Precipitation prediction from the ECMWF model for the next 100 hours showing the significant impacts of Hilary on the Western U.S. and Mexico. #Hilary #Precipitation #ECMWF Animation from #Weathernerds
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Ehsan Erfani, PhD @ehsansci.bsky.social · 09/08/2023
Exciting News! I'm thrilled to announce that my proposal has been funded! Grateful to NV NASA EPSCoR for their generous support in studying wildfire smoke effect on clouds, radiation & precipitation. Can't wait to start! #wildfire #smoke #cloud #radiation #precipitation #NASA #EPSCoR #FundingSuccess
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