Publikasjoner

The impact of the Arctic sea ice loss and variation on lower latitudes

Koenigk, Torben; Gao, Yongqi; Gastineau, Guillaume; Keenlyside, Noel; Nakamura, Tetsu; Ogawa, Fumiaki; Orsolini, Yvan; Semenov, Vladimir; Suo, Lingling; Tian, Tian; Yang, Shuting; Wang, Tao

Observations of SuperDARN global tides in the MLT and their response to sudden stratospheric warming events

Hibbins, Robert; Espy, Patrick Joseph; Orsolini, Yvan; Limpasuvan, Varavut

Nitric oxide response to the April 2010 electron precipitation event: Using WACCM and WACCM-D with and without medium-energy electrons

Smith-Johnsen, Christine; Marsh, Daniel R.; Orsolini, Yvan; Tyssøy, Hilde Nesse; Hendrickx, Koen; Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Stordal, Frode

Energetic electrons from the magnetosphere deposit their energy in the atmosphere and lead to production of nitric oxide (NO) in the mesosphere and lower thermosphere. We study the atmospheric NO response to a geomagnetic storm in April 2010 with WACCM (Whole Atmosphere Community Climate Model). Modeled NO is compared to observations by Solar Occultation For Ice Experiment/Aeronomy of Ice in the Mesosphere at 72–82°S latitudes. We investigate the modeled NOs sensitivity to changes in energy and chemistry. The electron energy model input is either a parameterization of auroral electrons or a full range energy spectrum (1–750 keV) from National Oceanic and Atmospheric Administration/Polar Orbiting Environmental Satellites and European Organisation for the Exploitation of Meteorological Satellites/Meteorological Operational satellites. To study the importance of ion chemistry for the production of NO, WACCM‐D, which has more complex ion chemistry, is used. Both standard WACCM and WACCM‐D underestimate the storm time NO increase in the main production region (90–110 km), using both electron energy inputs. At and below 80 km, including medium‐energy electrons (>30 keV) is important both for NO directly produced at this altitude region and for NO transported from other regions (indirect effect). By using WACCM‐D the direct NO production is improved, while the indirect effects on NO suffer from the downward propagating deficiency above. In conclusion, both a full range energy spectrum and ion chemistry is needed throughout the mesosphere and lower thermosphere region to increase the direct and indirect contribution from electrons on NO.

American Geophysical Union (AGU)

Versatility of GC-Orbitrap mass spectrometry for trace detection of persistent organic pollutants in penguin blood from Antarctica

Warner, Nicholas Alexander

Methane emission estimates for Ireland using a Bayesian Atmospheric Inversion

Arnold, Delia; O'Dowd, Colin; Martin, Damien; Thompson, Rona Louise

Net ecosystem exchange estimates for Europe using a Bayesian atmospheric inversion

Thompson, Rona Louise; Broquet, Grégoire; Karstens, Ute; Scholze, Marko

Identification and characterization of emerging and endocrine disrupting compounds in environmental samples with high resolution mass spectrometry

Rostkowski, Pawel Marian

Chemical impacts of energetic particle precipitation in the middle atmosphere

Orsolini, Yvan; Smith-Johnsen, Christine; Marsh, Dan; Stordal, Frode

Evaluating impacts of the Arctic sea ice loss and variation on the northern hemisphere climate

Koenigk, Torben; Gao, Yongqi; Gastineau, Guillaume; Keenlyside, Noel; Nakamura, Tetsu; Ogawa, Fumiaki; Orsolini, Yvan; Semenov, Vladimir; Suo, Lingling; Tian, Tian; Wang, Tao; Wettstein, Jonathan J.; Yang, Shuting

Subseasonal‐to‐seasonal forecasts with the Norwegian Climate Prediction Model

Li, Fei; Orsolini, Yvan

The operational system for forecasting of volcanic ash in Norwegian air space

Fagerli, Hilde; Klein, Heiko; Nyiri, Agnes; Steensen, Birthe Marie Rødssæteren; Schulz, Michael; Mortier, Augustin; Borg, Anette Lauen; Valdebenito Bustamante, Alvaro Moises; Kristiansen, Nina Iren; Kylling, Arve; Sollum, Espen; Eckhardt, Sabine; Stohl, Andreas; Tørseth, Kjetil

COST Action CA16109 COLOSSAL Chemical On-Line cOmpoSition and Source Apportionment of fine aerosoL

Minguillón, Maria Cruz; Prévôt, André; Riffault, Véronique; Favez, Olivier; Gilardoni, Stefania; Močnik, Griša; Platt, Stephen Matthew; Green, David; Ovadnevaite, Jurgita; Kasper-Giebl, Anne; Alastuey, Andrés; Marmureanu, Luminita; Eriksson, Axel; Sokolovic, Dunja; COLOSSAL Team, The