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Project NuClim @nuclim.bsky.social · 30/09/2026

Another consortium member is PTB. They are working on gamma spectrometry measurements at the ENA station which complement the available measurements. In addition, PTB coordinates the dissemination activities of NuClim. In the picture, Katharina and Stefan show off their measurement set up.

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Project NuClim @nuclim.bsky.social · 23/09/2026

The consortium introductions continue: IFIN-HH colleagues work on the modelling of the increase of ambient gamma dose rate over the background due to meteorological factors, especially precipitation and radon progeny contribution.

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Project NuClim @nuclim.bsky.social · 15/09/2026

Katharina talked about NuClim at ICRM-LLRMT yesterday. On Thursday, Stefan will continue presenting the project's progress. He will talk about calibrations for radon measurements and why they are important for NuClim. We look forward to further interesting discussions!

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Project NuClim @nuclim.bsky.social · 16/09/2026

Our project members from the Azores are at the University of the Azores and Fundação Gaspar Frutuoso. They are responsible for addressing the surface ocean-atmosphere interactions.

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Project NuClim @nuclim.bsky.social · 15/09/2026

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Project NuClim @nuclim.bsky.social · 14/09/2026

We are excited to announce that we've reached one year of radon measurement at the ENA station! We are looking forward to continuing the measurements and starting to dig into the results.

Line plot of radon concentration over time. The time scale is September 2025 to August 2026. The radon concentrations are below 12 Bq m^(-3).
The line is mainly below 1.5 Bq m^(-3) but with many irregular short-term spikes going up to values between 3 Bq m^(-3) and 6 Bq m^(-3).The spikes appear to be less often an pronounced from November to March and more often and higher from July to August.

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Project NuClim @nuclim.bsky.social · 11/09/2026

Katharina and Stefan will present NuClim work at the ICRM-LLRMT in Ottawa next week. Katharina's presentation on Monday is about ambient gamma dose rate measurements. Stefan's presentation is on Thursday, introduces the role metrology plays as the basis for the radon measurements in NuClim.

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Project NuClim @nuclim.bsky.social · 09/09/2026

We continue with our consortium partners: FMI from Finland. The @ilmatieteenlaitos.fi colleagues work on radon, greenhouse gas and gamma spectrometric measurements at the ENA station and coordinate the WP1.

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Project NuClim @nuclim.bsky.social · 08/09/2026

The spectrodosemeter newly set up at ENA station is also delivering data. From the spectrum, the presence of naturally occurring radionuclides like K-40 and Tl-208 is visible.

A line plot showing counts on a logarithmic scale over energy in keV. The y-scale ranges from about 10^(-1) to 10^4 and the x-scale from 0 keV to 2700 keV.
The line starts around 10^3 with a lot of noise and then the noise reduces in the first 500 keV. The line falls with some bumps to about 10^1 counts at 1400 keV and then a peak occurs slightly below 1500 keV. After that the line further decreases and the noise slightly increases. A second peak occurs around 2600 keV. Both peaks are hightlighted with vertical lines, the first labelled K-40, the second Tl208.

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Project NuClim @nuclim.bsky.social · 03/09/2026

Seeing the first data from a newly set up instrument is exciting! We are now getting data from the PTB instruments at ENA set up in August. Here you can see the detector and the sum of all gamma spectra recorded since then by the HPGe detector.

Photo of a silver metall tube, which sits vertically on a smaller tube. The smaller tubes leads into a black boxy thing with handle. Two cables go into the construction. One into the box and one into the top tube. The box is placed on a beige floor in front of a white wall. To the right and left, frames containing boxes with cables some connected, some disconnected are visible.

Data line plot. The main line is blue and goes through the whole plot, short bits are coloured in different colors. Those bits do not seem to overlap, and are placed and seemingly random distances. THey always follow exactly the main line.
The x-axis shows the gamma energy in keV, the range is from 0 to about 2750. The y-axis shows counts from 10^1 to 10^5 on a logarithmic scale.
The line seemingly starts at (0,0) and rapidly increses to about half way between 10^4 and 10^5. It slightly dips with higher energies, then increases and rounds off. From about 100 kEV to 1250 keV it decreases and flattens out at 10^3. Then a sharper decrease follows to half the order of magnitude at 1400 keV and then a peak to more than 10^4 at somewhat below 1500 keV. After this peak the values slowly decrease further and flatten around 10^2 untill 2350 keV. Then they further decrease to a bit above 10^1. At about 2600 keV a second big peak occurs and after it the values are nearly constant.
The blue line shows some noise (more at higher energies due to the lower values and logarithmic scale).
Several smaller peaks occur throughout the energies. Most of them are highlighted in a colour, though not all coloured bits correspond to a peak.

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Project NuClim @nuclim.bsky.social · 02/09/2026

Today, we start introducing our consortium partners. We start with our coordinator: @inesctec.bsky.social is coordinating the project and is responsible for radon, gamma dose, and cluster ion measurements at the ENA station.

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Project NuClim @nuclim.bsky.social · 27/08/2026

Last week, our colleagues from PTB installed their gamma radiation monitoring devices at the ENA station. They spent three days unpacking, assembling, moving devices and battling with the internet connection. With great support from Tercio and Bruno, the local ENA staff, everything got set up.

Photo of the measurement station, situated directly next to the small regional airport. The station features, a white radar dome, antennas, white containers on a concreate plateau. In the background a slightly hilly landscape under a blue sky is visible.

Photo of two men in front of a white container with a door. Next to them a metal lattice mast is much higher than the container and leaves the photo at the top. The sky is blue.

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Project NuClim @nuclim.bsky.social · 19/05/2026

Fieldwork always has its suprises. Angelina gives you some insights into the recent work concerning the radon detector at @maceheadccaps.bsky.social and answers the question: Why do you need five scientists to change one detector head?

Photo of three man around one metal construction, all looking very closely and intently at something while apparently trying to do something. They are next to the same grey house as before and it is the same metal mast.

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Project NuClim @nuclim.bsky.social · 15/05/2026

@maceheadccaps.bsky.social is widely recognised as one of the leading clean background air monitoring site in the Northern Hemisphere, due to its exposed location on the west coast of Ireland.

Photo of a pair of small, grey-brownish houses on a barren, rocky landscape. The houses are surrounded by a fence and several pasts. The sky is blue with some light clouds.

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Project NuClim @nuclim.bsky.social · 12/05/2026

In parallel to the field campaigns, our project partners at IFIN-HH (Romania) are developing models to describe the gamma dose background for specific conditions. The models are based on gamma radiation and radon concentration measurements from the ENA station (Graciosa) and at PTB's reference site.

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Project NuClim @nuclim.bsky.social · 08/05/2026

@maceheadccaps.bsky.social during recent field work to install the radon detector. What a place to work! Photos: Angelina Wenger 🧪 #fieldwork

Photo of two small grey-ish buildings in a rocky landscape with some green patches closer to the houses. The sky is wide and blue with some very light clouds. The landscape has some low rolling hills but it's main feature are big and smaller rocks. Around the houses several antennas, masts and a fence are arranged.

Photo of the see behind a rocky stretch of coast with some grass in the front. The sea has different shades of blue, the sun is shining from the left and the sky is completely blue without clouds. In the background one island is visible as a flat mountain.

Photo of a grey-ish landscape. Big rocks in the ground between gras in a flat landscape. In the background to the left, a big stretch of water is visible. In the background mountains disappear in the mist. The sky is cloudy grey with a hint of rain in the distance.

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Project NuClim @nuclim.bsky.social · 17/04/2026

Our online presentation series concluded last month. Five presentation covered radon measurements, aerosols, phytoplankton, modeling and how all this helps us to understand greenhouse gases in the atmosphere. You can find the recordings here: www.nuclim.eu/news-events/...

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Susana Barbosa @susanabarbosa.bsky.social · 07/04/2026

Scientists meet at the "table" too 🍴 Best meal ever, in my opinion! @nuclim.bsky.social

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Project NuClim @nuclim.bsky.social · 08/04/2026

Mounting snowmobiles and heading further North to reach the Pallas GAW-ICOS station, where atmospheric measurements are conducted! Is there a better way to enjoy the Finnish hospitality and scenic landscape during a field lunch in the snow?

The photograph shows nine people sitting in a half circle on wooden benches around a fireplace. The ground is covered with snow. All persons hold a bowl and spoons and look directly into the camera.

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Project NuClim @nuclim.bsky.social · 07/04/2026

On March 24 and 25, the NuClim internal project meeting was hosted by the Finnish Meteorological Institute (FMI) at the Sodankylä Geophysical Observatory (SGO) in Finland. A big thank you to the FMI @ilmatieteenlaitos.fi for the excellent organisation, and to the SGO for welcoming and supporting us!

The photograph shows 13 people standing in front of large trees in a snowy environment. The persons' sights are directed to the camera.

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Project NuClim @nuclim.bsky.social · 12/03/2026

Yesterday, part five of our presentation series took place. Aimon Tanvir and Anca Melintescu gave an interesting insight into machine learning processing of radon data and gamma radiation modeling with the goal to characterize pollution events. Thank you very much!

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Project NuClim @nuclim.bsky.social · 11/03/2026

Today at 15.00 UTC, Aimon Tanvir and Anca Melintescu will talk about "Application of Machine Learning and Data-driven Modeling in Climate Monitoring". Looking forward to an exciting presentation! You can still register here: buff.ly/7Psk2VD Photos: A. Tanvir, A. Melintescu

Photo of a smiling woman sitting on a rock in front of the sea with grey clouds in the background. She wears a white pullover with pink accents as well as pink trousers and a pink headscarf. She directly looks into the camera.

Photo of a woman with long dark brown hair in front of a lake. The shore can be seen in the background. The woman wears her sun glasses up in her hair.

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Project NuClim @nuclim.bsky.social · 09/03/2026

This week on Wednesday, March 11 at 15.00 UTC, Aimon Tanvir and Anca Melintescu will talk about "Application of Machine Learning and Data-driven Modeling in Climate Monitoring". Register and join us! Register here: buff.ly/7Psk2VD Photos: A. Tanvir, A. Melintescu

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Project NuClim @nuclim.bsky.social · 06/03/2026

Next week, the fourth presentation of our webinar will take place. On Wed., March 11 at 15.00 UTC, Aimon Tanvir and Anca Melintescu will talk about "Application of Machine Learning and Data-driven Modeling in Climate Monitoring" Register here: buff.ly/7Psk2VD Photos: A. Tanvir, A. Melintescu

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Project NuClim @nuclim.bsky.social · 03/03/2026

Register for our next presentation: March 11, 15.00-16.00 UTC: Application of Machine Learning and Data-driven Modeling in Climate Monitoring (Aimon Tanvir and Anca Melintescu) Registration link: buff.ly/7Psk2VD

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Project NuClim @nuclim.bsky.social · 26/02/2026

Yesterday, part four of our presentation series took place. Paula Eisnecker from the University of the Azores talked about phytoplankton, which needs CO₂, sunlight and nutrients to bloom. Phytoplankton is an essential part of the marine carbon cycle and known to be influenced by climate changes.

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Project NuClim @nuclim.bsky.social · 26/02/2026

On March 11th, 15-16 UTC, Aimon Tanvir and Anca Melintescu will talk about applications of machine learning and data-driven modeling in climate monitoring. Registere here and join us: buff.ly/uJnGNzk Photo: A. Tanvir Photo: A. Melintescu

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Project NuClim @nuclim.bsky.social · 25/02/2026

Today at 15UTC, Paula from the University of the Azores will talk marine phytoplankton and the global carbon cycle. There is still time to register: shorturl.at/n5GNl Photo: Paula Eisnecker

Photo of a smiling woman in front of a brick building. She as brown, wavy hair and is dressed in a white blouse. She is wearing a delicate necklace and is looking straight into the camera.

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Project NuClim @nuclim.bsky.social · 23/02/2026

On Wednesday this week, you have the chance to learn more about marine phytoplankton and what role it plays in the global carbon cycle. Paula Eisnecker will talk about her research combining in situ measurements at the Azores with satellite observations. 25th Feb, 15-16 UTC shorturl.at/n5GNl

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Project NuClim @nuclim.bsky.social · 23/02/2026

In a bit more than two weeks, Aimon and Anca will talk about application of machine learning and modeling in climate monitoring. March 11th, 15-16 UTC, online, free Register here: buff.ly/uJnGNzk

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Project NuClim @nuclim.bsky.social · 22/02/2026

Meet Anca Melintescu, Senior Scientist at “Horia Hulubei” National Institute of Physics and Nuclear Engineering in Măgurele, Romania, working in radiological risk assessment. In NuClim, she models the increase of ambient dose rate due to radon and other meteorological factors. Photo: A. Melintescu

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Project NuClim @nuclim.bsky.social · 21/02/2026

Meet Aimon Tanvir, a Postdoc at Mace Head. In NuClim, she works on GHGs and radon measurements to understand spatial variability and air mass influence. "I feel overjoyed being part of the team that is diverse but harmonious at the same time." @aimontanvir.bsky.social Photos: A. Tanvir

Photo of a smiling woman in front of a park with red and white tulips. She wears a silken headscarf with a black-golden pattern over a beige coat and an orange garment. Her view is directed towards the left.

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Project NuClim @nuclim.bsky.social · 20/02/2026

Next week, Paula will talk about marine phytoplankton and its role in the carbon cycle. Paula is an early-career scientist at the University of the Azores working with remote sensing data to improve the understanding of local phytoplankton dynamics and their links to ocean–atmosphere CO₂ exchange.

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Project NuClim @nuclim.bsky.social · 19/02/2026

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Project NuClim @nuclim.bsky.social · 16/02/2026

On Feb 25th, 15-16 UTC, Paula Eisnecker will talk about the role of marine primary producers in the global carbon cycle. She is using in situ and satellite observations to study plankton dynamics under ongoing climate change. Registere here and join us: shorturl.at/n5GNl Photo: P. Eisnecker

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Project NuClim @nuclim.bsky.social · 10/02/2026

In a bit more than two weeks, Paula will talk about phytoplankton and the marine carbon cycle. Feb 25, 15-16 UTC, online, free shorturl.at/n5GNl Paula will talk about ongoing work combining in situ observations with satellite data to understand phytoplankton dynamics under ongoing climate change.

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Project NuClim @nuclim.bsky.social · 12/02/2026

Yesterday, we had our third presentation of our presentation series. Xuemeng Chen from the University of Helsinki talked about atmospheric aerosols, how they are measured and why we are interested in them in NuClim. She also showed some data from the NuClim measurement campaign at Graciosa.

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Project NuClim @nuclim.bsky.social · 11/02/2026

We are starting in 3 hours! Join us!

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Project NuClim @nuclim.bsky.social · 11/02/2026

Later today, Ava will talk at our presentation series. Learn about atmospheric aerosols, clouds and what we are doing in NuClim. We are starting at 15.30 UTC. There is still time to register! We are looking forward to seeing you! shorturl.at/poyKz Photo: Xuemeng Chen

Photo of a smiling woman with big sunglasses and wearing several warm jackets. In the background, the sun is shining from a blue sky towards the camera and there are high mountains with snow below/at the same level). The women is Asian and looking straight into the camera.

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Project NuClim @nuclim.bsky.social · 10/02/2026

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Project NuClim @nuclim.bsky.social · 09/02/2026

This Wednesday! Xuemeng Chen from the University of Helsinki will talk about atmospheric aerosols and clouds in marine environments. Join us, online and free! Feb 11th, 15.30-16.30 UTC Register here: shorturl.at/poyKz

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Project NuClim @nuclim.bsky.social · 07/02/2026

Ava presented NuClim to the consortium of RadonNet during their project meeting. RadonNet is an EU project workin on quantifying Rn-222 activity concentrations indoors. They focus on connected and low-energy buildings, anticipating the implementation in future cities. Photo. S. Röttger

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Project NuClim @nuclim.bsky.social · 06/02/2026

Next week, Xuemeng Chen will talk in our presentation series about atmospheric aeorols and their effects on low-level clouds in marine environments. It's online: Feb 11th, 15.30-16.30 UTC (Starts half an hour later than our other presentations!) Register here: shorturl.at/poyKz Photo: S. Röttger

Photo of a smiling, asian woman. She is standing next two a table with mayne cables, tubes and small electronic devices. If there is any order in the arrangement, it does not become obvious to the unknowing observer.
Her hand is comfortably resting on one of the devices. She is holding a laptop and a phone. In the background some more equipment with larger tubes, and stored bags as well as another person walking by are visible.

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Project NuClim @nuclim.bsky.social · 05/02/2026

The recordings for our first two presentations are available on our website: www.nuclim.eu/news-events/... The first was an overview of NuClim by our project coordinator @susanabarbosa.bsky.social and in the second Craig talked about radon-based greenhouse gas tracing.

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Project NuClim @nuclim.bsky.social · 05/02/2026

Our fourth speaker in our presentation series is Paula Eisnecker. She is an early-career scientist at the University of the Azores working with remote sensing data to improve the understanding of local phytoplankton dynamics and their links to ocean–atmosphere CO₂ exchange. Photo: P. Eisnecker

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Project NuClim @nuclim.bsky.social · 04/02/2026

Register for our next two presentations: Feb 11, 15.30-16.30 UTC: Atmospheric aerosol and pollution (Xuemeng Chen/Ava) shorturl.at/poyKz Feb 25, 15-16 UTC: Phytoplankton and the marine carbon cycle (Paula Eisnecker) shorturl.at/n5GNl Photos: X. Chen, P. Eisnecker

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ICOS RI @icos-ri.eu · 03/02/2026

The ICOS newsletter for January is out now! Last month, we opened the Call for Abstracts for #ICOS2026SC and delved into how ICOS experiences and expertise contributed to the new @wmo-global.bsky.social #GAW measurement guidelines. Read more: preview.mailerlite.io/preview/7815...

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Project NuClim @nuclim.bsky.social · 03/02/2026

Our fourth presentation will be about phytoplankton and the marine carbon cycle. Paula Eisnecker from the University of the Azores will present on Feb 25th, 15-16 UTC. Online and free! You can already register here: shorturl.at/n5GNl We are looking forward to seeing you! Photo: P. Eisnecker

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Project NuClim @nuclim.bsky.social · 02/02/2026

Interested in aerosols and clouds? Xuemeng Chen (Ava) from the university of Helsinki will talk about the role of atmospheric aerosol particles in forming low-level clouds in marine environments. Come, join us: Feb 11th, 15.30-16.30 UTC, online Register here: shorturl.at/poyKz Photo: X. Chen

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Project NuClim @nuclim.bsky.social · 29/01/2026

We had our second presentation yesterday. Craig talked about radon-based greenhouse gas tracing. And the next is coming in less than two weeks: On Feb 11th Xuemeng Chen (Ava) will talk about aerosols and clouds and why we are measuring them within NuClim.

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