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Methane in Svalbard (SvalGaSess)

Hodson, Andrew; Kleber, Gabrielle Emma; Platt, Stephen Matthew; Kalenitchenko, Dimitri Stanislas Desire; Hengsens, Geert; Irvine-Fynn, Tristram; Senger, Kim; Tveit, Alexander Tøsdal; Øvreås, Lise; ten Hietbrink, Sophie; Hollander, Jamie; Ammerlaan, Fenna; Damm, Ellen; Römer, Miriam; Fransson, Agneta; Chierici, Melissa; Delpech, Lisa-Marie; Pirk, Norbert; Sen, Arunima; Redecker, Kelly

Methane is a powerful greenhouse gas whose emission into the atmosphere from Arctic environments is increasing in response to climate change. At present, the increase in atmospheric methane concentrations recorded at Ny-Ålesund and globally threatens the Paris Agreement goal of limiting warming to 2 degrees, preferably 1.5 degrees, by increasing the need for abatements. However, our understanding of the physical, chemical and biological processes that control methane in the Arctic are strongly biased towards just a few lowland sites that are not at all like Svalbard and other similar mountainous, ice-covered regions. Svalbard can therefore be used to better understand these locations. Svalbard’s methane stocks include vast reserves of ancient, geogenic methane trapped beneath glaciers and permafrost. This methane supplements the younger, microbial methane mostly produced in waterlogged soils and wetlands during the summer and early winter. Knowledge about the production, removal and migration of these two methane sources in Svalbard’s complex landscapes and coastal environments has grown rapidly in recent years. However, the need to exploit this knowledge to produce reliable estimates of present-day and future emissions of methane from across the Svalbard landscape is now paramount. This is because understanding these quantities is absolutely necessary when we seek to define how society must adjust in order to better manage greenhouse gases in Earth’s atmosphere

2025

Arctic haze in a climate changing world: the 2010–2022 trend (HAZECLIC 2)

Traversi, Rita; Becagli, Silvia; Severi, Mirko; Mazzola, Mauro; Lupi, Angelo; Fiebig, Markus; Hermansen, Ove; Krejci, Radovan

2024

Evaluation of the indoor environment and perceived IEQ : a case study in Norwegian primary schools

Chaulagain, Aayam; Mathisen, Hans Martin; Alam, Azimil Gani; Bartonova, Alena; Fredriksen, Mirjam; Høiskar, Britt Ann Kåstad; Gustavsen, Kai; Canet, Alfred Mansanet; Fredriksen, Tore; Cao, Guangyu

2024

Reconciliation of methane emissions in European national inventory reports with atmospheric measurements

Houweling, Sander; Berchet, Antoine; Brunner, Dominik; Cheliotis, Ioannis; Fenjuan, Wang; Ioannidis, Elefterios; Koch, Frank-Thomas; Lin, Hong; Maksyutov, Shamil; Meesters, Antoon; Monteil, Guillaume; Pison, Isabelle; Ren, Ge; Scholze, Marko; Sollum, Espen; Steiner, Michael; Thompson, Rona Louise; Tsuruta, Aki

2024

Quantifying subnational CO2 emissions by assimilating regional measurements in a global high-resolution inverse model

Nayagam, Lorna Raja; Maksyutov, Shamil; Oda, Tomohiro; Janardanan, Rajesh; Yoshida, Yukio; Trisolino, Pamela; Zeng, Jiye; Kaiser, Johannes; Matsunaga, Tsuneo

2024

Semantic Modeling of Waste Dataflow for Automating Circular Economy Systems

Motevallian, Mahsa; Esfar E Alam, A M; Taherkordi, Amirhosein; Abbasi, Golnoush

2024

The impact of the epoxy thin-film layer for microwave-based gas sensors working at high relative humidity levels

Grochala, Dominik; Paleczek, Anna; Kocoñ, Mateusz; Dudzik, Maciej; Blajszczak, Lukasz; Staszek, Kamil; Wojcikowski, Marek; Cao, Tuan-Vu; Rydosz, Artur

2024

Features Inspired PM2.5 Prediction: A Belfast City Case Study

Naz, Fareena; Fahim, Muhammad; Cheema, Adnan Ahmad; Nguyen, Trung Viet; Cao, Tuan-Vu; Duong, Trung Q.

2024

Joint Computation and Communication Resource Allocation for Unmanned Aerial Vehicle NOMA Systems

Do-Duy, Tan; Huynh, Dang V.; Garcia-Palacios, Emi; Cao, Tuan-Vu; Sharma, Vishal; Duong, Trung Q.

2023

Long-term observations of aerosol optical depth and their relation to in-situ aerosol properties in the Svalbard region (LOAD-RIS)

Hansen, Georg H.; Kouremeti, Natalia; Gilardoni, Stefania; Stebel, Kerstin; Evangeliou, Nikolaos; Ritter, Christoph; Zielinski, Tymon; Herrero, Sara; Kazadzis, Stelios; Mateos, David; Mazzola, Mauro; Pakszys, Paulina; Eleftheriadis, Konstantinos

Aerosols are an important constituent of the atmosphere both influencing the climate system and contributing to increasing pollution of the Arctic. At the same time, their adequate monitoring is a big challenge, as instruments on the ground only can sample aerosols in the lowermost atmosphere. For this reason, these measurements are complemented with observations of aerosol optical depth (AOD) which quantify the total amount of aerosols throughout the atmosphere from the attenuation of direct sunlight (and moonlight). This procedure requires extremely careful instrument calibration and removal of cloud contaminated data. In Svalbard, such measurements have been performed by several research groups with different instruments, mostly in Ny-Ålesund and in Hornsund, but also on research vessels offshore. In the framework of the SSF Strategic Grant project ReHearsol, all AOD data from the Svalbard region since 2002 have been collected and made available to the SIOS research community. They indicate that number and intensity of Arctic haze episodes occurring in late winter and spring have decreased consistently and significantly in the last 20 years, while pollution events in summer/early autumn, caused by boreal biomass burning, are on the rise, though not as consistently. Comparison between in-situ measurements at Gruvebadet Atmosphere Laboratory in Ny-Ålesund and AOD measurements indicate that most (more than 65%) of the episodes with high aerosol load are not captured by surface measurements. This finding does not change when one includes in-situ measurements at Zeppelin Observatory (475 m a.s.l.). Studying extensive high-AOD episodes such as those in summer 2019 requires a multi-tool approach including in-situ and remote-sensing measurements combined with model tools.

2023

Urban Transformation to Carbon-Free with Lush Greenery and Colored Solar Energy and Storage Technologies at the Diverse Climatic Conditions of Europe

Karamanis, Dimitrios; Liu, Hai-Ying; Avisar, Dror; Braslina, Liga; Cabeza, Luisa F.; D'Agostino, Dominic; Kapsalis, Vasileios; Lapka, P.; Raita, O.; Skandalos, Nikolaos; Vanhuyse, F.

2024

Exploring Ethical Impacts of Nanomaterials for Wastewater Remediation

Malsch, Ineke; Isigonis, Panagiotis; Bouman, Evert; Afantitis, Antreas; Melagraki, Georgia; Antunes, Dalila; Dusinska, Maria

2024

Automatic Correction of Non-Anechoic Antenna Measurements using Low-Pass Filters

Bekasiewicz, Adrian; Waladi, Vorya; Wojcikowski, Marek; Cao, Tuan-Vu

2023

Agency and responsibility in smart air pollution monitoring

Ekman, Karin; Ponti, Marisa; Grau, Marc Peñalver; Castell, Nuria; Steffansen, Rasmus Nedergård; Lissandrello, Enza

2023

Observations and Retrievals of Volcanic Ash Clouds Using Ground- and Satellite-Based Sensors

Mereu, Luigi; Scollo, Simona; Bonadonna, Costanza; Corradini, Stefano; Donnadieu, Franck; Montopoli, Mario; Vulpiani, Gianfranco; Barsotti, Sara; Freret-Lorgeril, Valentin; Gudmundsson, Magnús Tumi; Kylling, Arve; Ripepe, Maurizio

2023

Calibration strategies for low-cost compact field sensors in Citizen Science Air Quality measurements: Insights from SOCIO-BEE project

Kotzagianni, Maria; Hassani, Amirhossein; Morresi, Nicole; Udina, Sergi; Kyfonidis, Charalampos; Roussos, Anargyros; Casaccia, Sara; Revel, Gian Marco; Noriega-Ortega, Beatriz

2023

Spatial mapping of emissions

Kuenen, Jeroen; van Aardenne, John; Goodwin, Justin; Mareckova, Katarina; Adams, Martin; Ruyssenaars, Paul; Wankmüller, Robert; Pye, Stephen; King, Katie; Veldeman, Nele; van der Maas, Wim; Lopez-Aparicio, Susana; Plejdrup, Marlene S.; d'elia, Ilaria; Feigenspan, Stefan; Vilardell, Marc Guevara

2023

Cyclic and Linear Siloxanes in Indoor Environments: Occurrence and Human Exposure

Cincinelli, Alessandra; Martellini, Tania; Scopetani, Costanza; Guerranti, C.; Katsoyiannis, Athanasios A.

2020

The Atmosphere Above Ny-Ålesund: Climate and Global Warming, Ozone and Surface UV Radiation

Maturilli, Marion; Hanssen-Bauer, Inger; Neuber, Roland; Rex, Markus; Edvardsen, Kåre

2019

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