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Found 336 publications. Showing page 1 of 14:

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Using Google Earth Engine Annual Embeddings to Characterize Urban NO₂: First Results from Ecuador and Germany

Alvarez, Cesar; Wurm, Michael; Schneider, Philipp

The AlphaEarth Foundations model, recently released in Google Earth Engine as annual satellite embeddings, provides a new way to work with multi-sensor Earth observation data. Each 10-m pixel is summarized as a 64-dimensional vector that captures the yearly trajectory of surface conditions using information learned from optical, radar, LiDAR, and other datasets, including climatic model outputs and digital terrain data. Rather than representing physical measurements directly, these embeddings condense complex spatial and temporal patterns into compact descriptors that can be used as inputs for machine-learning regression models. This allows researchers to explore environmental patterns—such as air quality—that are influenced by geographical, environmental, and meteorological conditions in cities.In this study, we evaluate whether these annual embeddings, represented as 64 bands (A00–A63), can describe spatial patterns of urban NO₂ without explicitly supplying additional land-use, meteorological, or emission datasets. We present first results from two contrasting environments: Quito, a high-altitude Andean basin in Ecuador, and Essen, a dense urban–industrial region in western Germany. Models trained only with the embedding bands and ground-based NO₂ observations reproduce meaningful spatial gradients in both cities, suggesting that the embeddings encode attributes relevant to emission intensity, urban structure, and pollutant dispersion.These early results highlight the potential of foundation-model satellite embeddings as lightweight, scalable predictors for urban air-quality analyses. They also show how these embeddings can be combined with advanced AI-based regression models, offering a new option for studying air pollution patterns in cities where data availability is often limited by the small number of air-quality monitoring stations.

2026

Urban Background Particulate Matter and Its Oxidative Potential in Oslo

Froment, Jean Francois; Honza, Tatiana; Hudecova, Alexandra Misci; Hak, Claudia; Yttri, Karl Espen; Longhin, Eleonora Marta

2026

Automatic Ship-Based Photometers for Enhanced Aerosol Characterization Over the Open Ocean: Towards a Global Network

Barrero, Maria Fernanda Sanchez; Torres, Benjamin; Blarel, Luc; Dubois, Gaël; Canon, Antoine; Goloub, Philippe; Veloso, Manuel; Podvin, Thierry; Maupin, Fabrice; Ponzevera, Laurent; Sicard, Michael; Metzger, Jean Marc; Tulet, Pierre; Slutsker, Ilya; Marbach, Thierry; Goryl, Philippe; Niro, Fabrizio; Brizzi, Gabriele; Giuliano, Giovanni; Liberti, Gian Luigi; Vita, Giovanni De; Langone, Leonardo; Gonzalez, Ramiro; Toledano, Carlos; Cardenes, Miguel Angel Ojeda; Etienne, Jean Louis; Leclout, Gregory; Fourquez, Marion; Fjæraa, Ann Mari; Mengeot, Caroline; Roden, Nicholas; Jaccard, Pierre Franqois

2026

Automatic Ship-Based Photometers for Enhanced Aerosol Characterization Over the Open Ocean: Towards a Global Network

Barrero, Maria Fernanda Sanchez; Torres, Benjamin; Blarel, Luc; Dubois, Gaël; Canon, Antoine; Goloub, Philippe; Maupin, Fabrice; Metzger, Jean Marc; Tulet, Pierre; Slutsker, Ilya; Marbach, Thierry; Brizzi, Gabriele; Liberti, Gian Luigi; Langone, Leonardo; Gonzalez, Ramiro; Toledano, Carlos; Etienne, Jean Louis; Leclout, Gregory; Fjæraa, Ann Mari; Jaccard, Pierre Franqois; Veloso, Manuel; Podvin, Thierry; Ponzevera, Laurent; Sicard, Michaël; Goryl, Philippe; Niro, Fabrizio; Giuliano, Giovanni; Vita, Giovanni De; Ojeda, Miguel Angel; Fourquez, Marion; Mengeot, Caroline; Roden, Nicholas

2026

A Roadmap Towards Trans-Atlantic Data FAIRness for Observations of Short-Lived Atmospheric Constituents

Fiebig, Markus; Andrews, Elisabeth; Mona, Lucia; O'Connor, Ewan; Prakash, Giri; Welton, Ellsworth

2026

Volatile Organic Compounds (VOCs) in the tropics (Réunion Island, Indian Ocean)

Magand, Olivier; Boulanger, Patricia; Staménoff, Pierre; David, Magali; Hernandez, Patrick; Golubic, Eric; Hello, Yann; Ah-Peng, Claudine; Duflot, Valentin; Ktata, Olivier; Rocco, Manon

2026

Re-emissions of polycyclic aromatic compounds from land and sea surfaces in source and receptor areas

Lammel, Gerhard; Bezdeková, Dominika; Bohlin-Nizzetto, Pernilla; Halse, Anne Karine; Iakovides, Minas; Kukucka, Petr; Letocha, Ondrej; Martiník, Jakub; Maye, Ludovic; Mwangi, John; Neziková, Barbora Palátová; Pribylová, Petra; Prokes, Roman; Stephanou, Euripides; Tsapakis, Manolis; Wietzoreck, Marco; Vrana, Branislav

2026

European air quality monitoring under EMEP: Alignment with ACTRIS and the AAQD

Aas, Wenche; Duflot, Valentin; Pfaffhuber, Katrine Aspmo; Halvorsen, Helene Lunder; Hamer, Paul David; Hjellbrekke, Anne-Gunn; Platt, Stephen Matthew; Tørseth, Kjetil; Yttri, Karl Espen

2026

Daily high-resolution surface PM2.5 estimation over Europe by ML-based downscaling of the CAMS regional forecast

Schneider, Philipp; Shetty, Shobitha; Stebel, Kerstin; Hamer, Paul David; Hassani, Amirhossein; Salamalikis, Vasileios; Castell, Nuria; Berntsen, Terje Koren

2026

Dust aerosols, a challenge for agriculture

Kristensson, Adam; Krais, Annette; Ahlberg, Erik; Eriksson, Axel; Zwaaftink, Christine Groot; Evangeliou, Nikolaos; Roldin, Pontus; Thomasson, August; Friberg, Johan; Swietlicki, Erik; Sporre, Moa Kristina; Wierzbicka, Aneta; Malmborg, Vilhelm

2026

Vector-based contour maps for interactive visualization of atmospheric model products

Sangha, Amandip Singh; Eckhardt, Sabine; Evangeliou, Nikolaos

2026

Integrating Technical, Nature-Based, and Social Solutions: A Stakeholder-driven Approach to Climate Adaptation-Mitigation Synergies

Dookie, Denyse S.; Dallo, Federico; Liu, Hai-Ying; Wezenberg, Sebastiaan; Jacobs, Piet; Khoury, Eliane; Marcheggiani, Stefania; Beaumet, Julien; Leone, Mattia; Cao, Tuan-Vu

As climate change impacts intensify across Europe and globally, societies are confronted with increasingly frequent and severe hazards that challenge public health, urban livability, and environmental sustainability. While adaptation measures are urgently needed to cope with current and near-term climate risks, it is becoming increasingly evident that mitigation efforts are essential to ensure a resilient and sustainable future. Too often, however, adaptation and mitigation strategies are planned and implemented in isolation, within sectoral silos, overlooking their potential interdependencies, synergies, and co-benefits. This contribution draws on the on-going experience and perspectives of the EU-funded healthRiskADAPT project, which addresses climate-related health risks by explicitly linking adaptation and mitigation pathways across multiple hazards.The project adopts a broad and integrated perspective that combines existing technical solutions, nature-based interventions, and engagement strategies, with a strong emphasis on co-benefits for health and well-being in the face of climate hazards namely heatwaves, air pollution including wildfire emission, and pollen. Central to this framework is the use of cost–benefit and co-benefit analyses to support decision-makers in identifying, prioritizing, and implementing measures that maximize societal resilience while delivering climate resilience solutions, considering natural based solutions (e.g., greening) as well as technical solutions (e.g., smart-buildings, do-it-yourself air purifier devices, evaporative cooling, high efficiency filtering). Beyond technical assessments, the healthRiskADAPT project recognizes that increasing resilience requires engagement beyond institutional actors. Social solutions such as education, awareness-raising, and capacity building at the stakeholder level are considered essential components of effective climate strategies. The contribution therefore also explores participatory formats and stakeholder engagement approaches designed to enhance understanding of climate-related health risks and support the co-design of locally relevant policies and interventions.By presenting the project’s methodological pathways, tools, and engagement strategies, this contribution illustrates how integrated adaptation–mitigation planning can be operationalized in practice. It highlights the value of moving beyond sector-specific solutions toward systemic approaches that acknowledge complex interdependencies between climate, environment, health, and society. Ultimately, the contribution aims to demonstrate how such integrated frameworks can support cities and regions in developing more coherent, evidence-based, and socially inclusive climate policies, strengthening resilience in the face of a changing climate.

2026

Atmospheric microplastics in the Arctic and mainland Norway: Occurrence, composition, and sources

Schmidt, Natascha; Davie-Martin, Cleo Lisa; Schulze, Dorothea; Celentano, Samuel; Bäcklund, Are; Evangeliou, Nikolaos; Eckhardt, Sabine; Herzke, Dorte

2025

FLEXPART-11: Advancements in a Lagrangian Atmospheric Model for Enhanced Accuracy, Efficiency, and Flexibility

Bakels, Lucie; Tatsii, Daria; Tipka, Anne; Dütsch, Marina; Blaschek, Michael; Bucci, Silvia; Plach, Andreas; Vojta, Martin; Seibert, Petra; Pisso, Ignacio; Eckhardt, Sabine; Cassiani, Massimo; Zwaaftink, Christine Groot; Mulder, Marie; Stohl, Andreas

2024

Effect of long-range transported fire emissions on aerosol and cloud properties at high latitudes: In situ measurements and satellite observations

Kommula, Snehitha M.; Buchholz, Angela; Gramlich, Yvette; Mielonen, Tero; Hao, Liqing; Pullinen, Iida; Vettikkat, Lejish; Joutsensaari, Jorma; schobesberger, Siegfried; Tiitta, Petri; Leskinen, Ari; Rees, Dominic Heslin; Haslett, Sophie; Siegel, Karolina; Lunder, Chris Rene; Zieger, Paul; Krejci, Radovan; Romakkaniemi, Sami; Mohr, Claudia; Virtanen, Annele

2024

Determining the influence of fluorescent primary biological aerosol particles on low-level Arctic clouds

Zieger, Paul; Freitas, Gabriel Pereira; Kopec, Ben; Adachi, Kouji; Krejci, Radovan; Heslin-Rees, Dominic; Yttri, Karl Espen; Hubbard, Alun; Welker, Jeffrey M.

2024

High-Resolution Inversion Modeling of Carbon Dioxide and Methane Emissions in Europe: Assessing Accuracy and  Dynamics

Mengistu, Anteneh Getachew; Tsuruta, Aki; Tenkanen, Maria; Markkanen, Tiina; Raivonen, Maarit; Leppänen, Antti; Berchet, Antoine; Thompson, Rona Louise; Lindqvist, Hannakaisa; Aalto, Tuula

2024

Soils and surface waters are secondary sources of polycyclic aromatic compounds

Lammel, Gerhard; Bandowe, Benjamin A. Musa; Bohlin-Nizzetto, Pernilla; Degrendele, Céline; Halse, Anne Karine; Iakovides, Minas; Kukučka, Petr; Kyprianou, Marios; Martiník, Jakub; Mwangi, John; Nežiková, Barbora Palátová; Přibylová, Petra; Prokeš, Roman; Sáňka, Milan; Sobotka, Jaromir; Vinkler, Jakub; Wietzoreck, Marco; Pöschl, Ulrich; Stephanou, Euripides G.; Tsapakis, Manolis

2024

Estimation of methane emissions at European scale with a special focus on Austria

Wittig, Sophie; Raju, Anjumol; Nabavi, Seyed Omid; Vojta, Martin; Redl, Peter; Hoheisel, Antje; Hirtl, Marcus; Zwaaftink, Christine Groot; Stohl, Andreas

2024

Constraining CO2 fluxes over Europe using FLEXINVERT and in-situ measurements

Raju, Anjumol; Wittig, Sophie; Vojta, Martin; Nabavi, Omid; Redl, Peter; Hoheisel, Antje; Hirtl, Marcus; Zwaaftink, Christine Groot; Stohl, Andreas

2024

Evaluation of historical SO2 emissions based on an inversion of ice core records using atmospheric transport modeling

Plach, Andreas; Eckhardt, Sabine; Pisso, Ignacio; Chellman, Nathan; McConnell, Joseph R.; Stohl, Andreas

2024

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