iiinova — where your digital self keeps evolving

Sanam Vardag @sanamnv.bsky.social · 06/06/2026

Where shoud cities place CO₂ sensors to measure urban emissions and how many sensors are needed? As part of Germany’s Integrated Greenhouse Gas Monitoring System (ITMS), Christopher Lüken-Winkels et al. analysed optimal sensor networks for urban areas. Link: doi.org/10.1525/elem...

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Sanam Vardag @sanamnv.bsky.social · 03/06/2026

Congratulations to Berry Molinier and all co-authors on this new paper! 🎉 By comparing flux observations and simulations across Zurich, Munich, and Paris, this study provides valuable insights into urban greenhouse gas emissions in the three ICOS cities. doi.org/10.1021/acse...

doi.org

Insights from the Convolution of Emission Inventories with Flux Footprints from Tall Eddy Covariance Towers at Three European Cities

Climate change is primarily driven by anthropogenic emissions of greenhouse gases. Reducing these emissions globally requires a massive effort at the individual, city, and national scales. Urban areas...

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Sanam Vardag @sanamnv.bsky.social · 19/05/2026

We supported the Girls’ Day organized by the Faculty of Physics and Astronomy to inspire girls to pursue physics. 💪🏻💃🏻 🗞️ News item: www.iup.uni-heidelberg.de/en/girls-day... 🎥 Video of Lisa during a typical day working on her master’s thesis: www.youtube.com/watch?v=j17T... What a fun day!

youtube.com

1080p V2

YouTube video by Andre Butz

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Sanam Vardag @sanamnv.bsky.social · 09/05/2026

EGU26 was insightful, fun, and full of great conversations with new and old connections. I am really proud of our group members for sharing their work (some for the first time) and contributing to this inspiring atmosphere. #EGU26

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Sanam Vardag @sanamnv.bsky.social · 02/05/2026

On the way to #EGU26. My team will present 🌏 global assessment of interannual variability using 15a of GOSAT (Vardag et al.) 🛰️ evaluation of new regional inversion with FLEXPART in North America (Grandke et al.) 👨‍💻high-resolution modeling of CO2 in Paris (Maiwald et al.) Make sure to meet us there 😊

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Judith Hauck @jhauck.bsky.social · 20/04/2026

Last chance to apply for this 🌊 job

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Sanam Vardag @sanamnv.bsky.social · 20/04/2026

👩‍🔬Next Thursday: Girls’ Day in Physics 💫 Join us and explore the world of physics. I will share my path into science and what cool things we do with it 😊 #GirlsDay #girlpower @uniheidelberg.bsky.social www.physik.uni-heidelberg.de/girlsday

physik.uni-heidelberg.de

Fakultät für Physik und Astronomie

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Sanam Vardag @sanamnv.bsky.social · 23/01/2026

🎓 Congratulations Dr. Lukas Pilz! Lukas has successfully completed his PhD, developing high-resolution WRF simulations for urban areas to improve CO₂ emission estimates as part of the Integrated Greenhouse gas Monitoring project (ITMS). Well done, Lukas, and all the best for what’s next!

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Sanam Vardag @sanamnv.bsky.social · 10/12/2025

Yesterday I had the pleasure of presenting our group’s work at the IMKASF institute colloquium at @kit.edu I really enjoyed reconnecting with familiar faces, meeting new people, and the great questions and discussions. Thanks for the invitation!

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Sanam Vardag @sanamnv.bsky.social · 02/11/2025

My dear colleague Martin Kesternich is offering a PhD/Postdoc position in Environmental Economics @ Uni Augsburg starting Feb 2026 Interdisciplinary work with us @ Environmental Physics on the value of granular climate data possible 🔬 www.uni-augsburg.de/de/jobs-und-... #climateactionscience

uni-augsburg.de

Wissenschaftliche Mitarbeiterin / Wissenschaftlicher Mitarbeiter (m/w/d) als Doktorandin / Doktorand, Wirtschaftswissenschaftliche Fakultät

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UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social · 11/10/2025

☀️New node up in Mannheim Sandhofen Pumpwerk 🚿 It marks the furthest north node of the UNICORN network. Thanks to the Pumpwerk team and City of Mannheim for great support! #ClimateAction #TrackingEmissions

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Sanam Vardag @sanamnv.bsky.social · 04/10/2025

🌱💦New insights into carbon–water coupling in dryland ecosystems: We quantified how soil moisture and temperature regulate respiration across Australia, revealing nonlinear responses. This marks the final publication of Eva-Marie Metz’s PhD: shorturl.at/Gq10h Eva, its been a pleasure☀️ All the best!

shorturl.at

Responses of terrestrial ecosystem respiration to soil moisture across Australia - IOPscience

Responses of terrestrial ecosystem respiration to soil moisture across Australia, Metz, Eva-Marie, Vardag, Sanam N, Feldman, Andrew F, Poulter, Benjamin, Colligan, Thomas, Fischer-Femal, Brenden J, Bu...

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Sanam Vardag @sanamnv.bsky.social · 01/10/2025

WMO’s GAW programme put together guidelines to help cities better measure and track their greenhouse gas emissions. Proud to have contributed as a chapter lead author to this global community effort. Guidelines: doi.org/10.59327/WMO... #climateactionscience #urbanemissions

doi.org

Human Verification

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Sanam Vardag @sanamnv.bsky.social · 23/09/2025

Our Institute of Environmental Phyiscs hosted the ITMS (Integrated Greenhouse Gas Monitoring System) General Assembly 2025. Day 1 was a great start! Inspiring keynotes and new insights into modelling results. Huge thanks to all presenters & attendees for good discussions! @uniheidelberg.bsky.social

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Sanam Vardag @sanamnv.bsky.social · 02/09/2025

✨ New paper! ✨ We ran WRF at 1 km over an urban area to test how physics schemes shape performance 🏙️ Urban & PBL schemes matter most 🌁 Station characteristics often dominate metrics Why it matters: Better models = better GHG monitoring doi.org/10.1016/j.at... 👏 Kudos to Lukas Pilz

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Sanam Vardag @sanamnv.bsky.social · 30/08/2025

🙌🏻 New paper in Earth System Dynamics showing how social norms & group structures shape (un)sustainable futures. 🤝 Congrats to Max Bechthold on his first first-author pub + for leading a great interdisciplinary collaboration. 👉Paper: doi.org/10.5194/esd-...

doi.org

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Universität Heidelberg @uniheidelberg.bsky.social · 05/08/2025

50 Jahre Umweltphysik an der Universität Heidelberg – Wegweisende Forschung zum Fluss von Energie und Materie in der Umwelt www.uni-heidelberg.de/de/newsroom/... #universität #heidelberg #uniheidelberg #umweltphysik #klima #erde #forschung #jubiläum

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Sanam Vardag @sanamnv.bsky.social · 31/07/2025

Exciting news: Our pyVPRM paper led by @theogl.bsky.social has been published in GMD. The flexible further development of VPRM works with Sentinel‑2, MODIS & VIIRS and delivers high‑resolution and improved carbon flux estimates. Read it: doi.org/10.5194/gmd-18-4713-2025

doi.org

pyVPRM: a next-generation vegetation photosynthesis and respiration model for the post-MODIS era

Abstract. The Vegetation Photosynthesis and Respiration Model (VPRM) is a well-established tool for estimating carbon exchange fluxes between the atmosphere and the biosphere. The gross primary produc...

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UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social · 26/07/2025

🦄 The UNICORN CO₂ network is growing! 🚨 Red dots = installed sensors Blue dots = confirmed locations coming soon 🌍 We’re building an urban network in Heidelberg and Mannheim of atmospheric CO₂ - one node at a time. Stay tuned… the first data is coming in soon! 📊✨

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Sanam Vardag @sanamnv.bsky.social · 19/07/2025

🌍 Excited to share an important piece of work led by Jeongmin Yun on African carbon dynamics. 🛰️ Using multiple satellite data products (including OCO-2), we explore what drives interannual variability across Africa’s diverse ecosystems. 🌿 Check it out here: doi.org/10.1029/2025...

doi.org

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UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social · 11/07/2025

🦄 Meet the UNICORN Team: Prof. Dr. André Butz  @abutz.bsky.social leads UNICORN with a focus on spectroscopic techniques and novel instruments. André fosters collaborative research across disciplines. 🌐 www.iup.uni- heidelberg.de/en/research/atmosphere/atmosphere-and-remote-sensing-butz-group

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Sanam Vardag @sanamnv.bsky.social · 08/07/2025

Visited Wageningen University for Kims PhD defense. The campus was beautiful, the discussions with bright students were inspiring, and Kim gave a fantastic defense of an impressive thesis. Thanks so much for the invitation and warm welcome! 😊

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UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social · 04/07/2025

🦄 Meet the UNICORN Team: Dr. Sanam Vardag @sanamnv.bsky.social leads the UNICORN team with expertise in greenhouse gas simulations and urban emission quantification. She is driven by a commitment to interdisciplinary collaboration for climate solutions. 🌐 www.iup.uni-heidelberg.de/en/research/...

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UNICORN Heidelberg Mannheim @unicorn-uhei.bsky.social · 23/06/2025

We’ve launched UNICORN – the University Network for CO₂ in the Rhine-Neckar Metropolitan Area 🌍🌆 UNICORN establishes a dense, urban CO₂ monitoring network to support science-based climate policy at the city scale. 🔗 Website: www.iup.uni-heidelberg.de/en/research/... @uniheidelberg.bsky.social

iup.uni-heidelberg.de

UNICORN - Institute of Environmental Physics

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Sanam Vardag @sanamnv.bsky.social · 11/06/2025

Today I gave a remote talk at IWGGMS-21 on studying semi-arid regions with GOSAT 🌍 Really enjoyed many great talks—though couldn’t catch them all due to the time shift. Grateful to be part of this community! #IWGGMS #GOSAT #RemoteSensing #NIES

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Sanam Vardag @sanamnv.bsky.social · 23/04/2025

New study uses satellite CO₂ data to reveal what drives seasonal carbon fluxes in South American temperate ecosystems. Turns out, rewetting dry soils spikes respiration before plants start photosynthesizing. A key process global models are missing. #CarbonCycle #RemoteSensing doi.org/10.1029/2024...

doi.org

CO2 Release During Soil Rewetting Shapes the Seasonal Carbon Dynamics in South American Temperate Region

Combining ecosystem models with satellite-based top-down fluxes enhances our understanding of carbon dynamics in remote regions In the South American Temperate (SAT) region, an early increase in ...

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Sanam Vardag @sanamnv.bsky.social · 14/04/2025

The institute of environmental physics participated at the Girls Day 2025 to show girls how cool environmental physics can be and to motivate this career path www.iup.uni-heidelberg.de/en/node/552 #girlsday #empowerment #girlspower @uniheidelberg.bsky.social

iup.uni-heidelberg.de

Girls' Day am Institut für Umweltphysik: Forschen, Staunen, Mitmachen! - Institute of Environmental Physics

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ICOS RI @icos-ri.eu · 08/04/2025

Quantifying urban emissions is difficult due to high heterogeny of anthropogenic and biogenic emissions in cities. @sanamnv.bsky.social presents experimental urban network designs and emission quantification for enhanced emission verification. #UrbanGHGSummit #ICOSCities

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Sanam Vardag @sanamnv.bsky.social · 01/04/2025

It was a pleasure to host a workshop on atmospheric modelling within the ITMS project (“Integrated Greenhouse gas monitoring system for Germany”) project. I enjoyed fruitful discussions on how to best track Germany's greenhouse gas emissions. #ITMS #Heidelberg @uniheidelberg.bsky.social

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Sanam Vardag @sanamnv.bsky.social · 22/03/2025

🌍 New research on the southern African carbon cycle! 🛰️ We used satellite CO₂ data (2009–2018) to refine CO₂ flux estimates, revealing that photosynthesis drives interannual variability, while soil respiration after rewetting shapes the seasonal cycle. 📄 Read more: doi.org/10.5194/bg-2...

doi.org

Seasonal and interannual variability in CO2 fluxes in southern Africa seen by GOSAT

Abstract. The interannual variability in the global carbon sink is heavily influenced by semiarid regions. Southern hemispheric Africa has large semiarid and arid regions. However, there is only a spa...

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Sanam Vardag @sanamnv.bsky.social · 11/03/2025

I am excited to share that I have been appointed by the Federal Minister for Digital and Transport Affairs, Dr. Volker Wissing, as a member of the scientific advisory board of the German meteorological service (DWD). www.iup.uni-heidelberg.de/en/about-us/... @uniheidelberg.bsky.social

iup.uni-heidelberg.de

Dr. Sanam Vardag appointed as a member of the Scientific Advisory Board of the German Metservice - Institute of Environmental Physics

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Sanam Vardag @sanamnv.bsky.social · 11/03/2025

Hello Bluesky-World! I just deleted my X account and I am ready to start a network on Bluesky.

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