New project member: Netsai Vanessa Sadza
In December 2025, Netsai Vanessa Sadza joined the Nubolosyti project, after obtaining a grant from the Spanish Ministry of Science and Innovation. She is Master in Atmospheric Science for the University of Lille, and has started working at the UdG in different methods of detection of cloud-aerosol transition conditions, with the aim of assessing their overall agreement. Research on this issue will be part of her doctoral thesis. Some members of the Nubolosyti team at the Escola Politècnica Superior (Campus Montilivi of the Universitat de Girona). From left to right: Josep-Abel González, Yolanda Sola, Jaume Ruiz de Morales, Netsai [...]
New satellite study reveals a widespread transition zone in the sky, challenging climate models
A new study published in Advances in Atmospheric Sciences has shed light on a previously overlooked but common atmospheric phenomenon: the transition zone (TZ) where clouds and aerosols blend together, making it difficult to tell where one ends and the other begins. These conditions in the sky are more prevalent than previously thought and could be a key to reducing uncertainty in future climate projections. Clouds and aerosols (tiny suspended particles in the air) are critical players in regulating Earth's temperature, but they remain one of the largest sources of uncertainty in climate models. Traditionally, scientists have classified atmospheric layers as either [...]
The cloud-aerosol transition zone assessed from ceilometer measurements
This study presents a method to quantify the frequency of occurrence of cloud-aerosol transition zone (TZ) conditions as well as to analyze its vertical distribution. The main results indicate that ceilometer backscatter retrievals show a gradual transition from a cloudy to a cloud-free atmosphere, and that cloud detection is influenced by the set of thresholds used. From a column integrated point of view, the TZ was present in 9.3% of profiles, with an estimated uncertainty range of 5.4–20%. However, when analyzing the vertical distribution, the TZ conditions were found as frequent as cloudy ones, which emphasizes the importance of studying [...]
Attending the International Radiation Symposium 2024 (IRS2024) at Hangzhou (China)
Jaume Ruiz de Morales, PhD Student of the University of Girona involved in the NUBESOL-2 project has presented some results at the IRS 2024 (17 June - 21 June), a quadrennial congress that took place in Hangzhou, China. Jaume Ruiz de Morales at IRS2024, at Hangzhou (China) The IRS2024 was organized by the Zhejiang University (ZJU), along with the International Radiation Commission (IRC) of the International Association of Meteorology and Atmospheric Sciences (IAMAS). The meeting offered a multicultural ambience, where researchers from all over the world shared their latest findings on atmospheric radiation science. Jaume Ruiz de Morales [...]
Attending the 9th International Conference on Meteorology and Climatology of the Mediterranean (MetMed 2023) at Genoa (Italy)
Josep Calbó, Yolanda Sola and Jaume Ruiz de Morales, researchers from the University of Girona and the University of Barcelona involved in the NUBESOL-2 project have presented some results at the MetMed 2023 Conference, a biennal meeting which this year takes place at Genoa, Italy. Jaume Ruiz de Morales, Josep Calbó and Yolanda Sola at the MetMed 2023 Conference. The MetMed Conferences are devoted to research concerning different aspects of meteorology and climatology of the Mediterranean region. The 9th Edition is jointly organized by the University of Genoa, the Italian Association of Atmospheric Sciences and Meteorology (AISAM), the [...]
10-15% of cloudless-to-cloud transition occurrence, assessed from downwelling longwave measurements
Image: clouds reflected onto a pyrgeometer dome In a recently published article, the authors have reinforced the idea that among 10-15% of sky conditions would correspond to the cloudless-to-cloud transition zone. This result has been found from pyrgeometer measurements taken at the radiometric station of the Environmental Physics Group (Department of Physics – Polytechnic School – Universitat de Girona). The extension of methods for estimating the occurrence of transition conditions (or the spatial extent of the transition region) is largely significant, given the importance of clouds’ effects on the climate balance. The article, Assessment of cloudless-to-cloud transition zone [...]
In December 2025, Netsai Vanessa Sadza joined the Nubolosyti project, after obtaining a grant from the Spanish [...]
A new study published in Advances in Atmospheric Sciences has shed light on a previously overlooked but common atmospheric [...]
This study presents a method to quantify the frequency of occurrence of cloud-aerosol transition zone (TZ) conditions [...]
Jaume Ruiz de Morales, PhD Student of the University of Girona involved in the NUBESOL-2 project has [...]
Josep Calbó, Yolanda Sola and Jaume Ruiz de Morales, researchers from the University of Girona and the [...]
Image: clouds reflected onto a pyrgeometer dome In a recently published article, the authors have [...]
