Publications

Sucralose - a new persistent pollutant in the environment?

Dye, C.; Kylin, H.; Schlabach, M.

Sucralose - a new persistent pollutant in the environment? Abstract. NILU F

Kylin, H.; Dye, C.; Schlabach, M.

Suivi et évaluation de la Qualité de l'Air. NILU OR

Sivertsen, B.; Guerreiro, C.

Sulfur dioxide measurements in the lower, middle and upper troposphere: Deployment of an aircraft-based chemical ionization mass spectrometer with permanent in-flight calibration.

Speidel, M.; Nau, R.; Arnold, F.; Schlager, H.; Stohl, A.

Sulphur dioxide as a volcanic ash proxy during the April-May 2010 eruption of Eyjafjallajökull Volcano, Iceland.

Thomas, H.E.; Prata, A. J.

Sulphur.

Lövblad, G.; Tarrasón, L.; Tørseth, K.

Summary of NILU's contribution to the GIOS project on: Strengthening technical capacities of Inspection of Environmental Protection through the procurement of measurement, laboratory and IT equipment. NILU OR

Pacyna, J.M.; Pacyna, E.G.

NILU - Norwegian Institute for Air Research and the Chief Inspectorate of Environmental Protection in Poland - GIOS are implementing the project on "Strengthening the air quality assessment system in Poland based on Norwegian experience", as a part of the program on "Improving Environmental Monitoring and Inspection" within the framework of the European Economic area 2009 - 2014.
Various tasks carried out during the performance of the project within Activities 1 through 6 are summarized here.

Summary report on user categories and needs. Project deliverable D03.06. EU-project EN 4002 IRENIE. Improved Reporting of Environmental Information using EIONET.

Bøhler, T.

Summary report: Amine emissions to air during carbon capture. Phase I: CO2 and amines screening study for effects to the environment. NILU OR

Knudsen, S.; Karl, M.; Randall, S.

Summertime Arctic ozone variability and low-ozone episodes.

Orsolini, Y.; Eskes, H.; Hansen, G.; Hoppe, U.; Kylling, A.; Notholt, J. Van Der A, R. , Von Der Gathen, P.

Summertime low-ozone episodes at northern high latitudes.

Orsolini, Y.J.; Eskes, H.; Hansen, G.; Hoppe, U.P.; Kylling, A.; Kyro, E.; Notholt, J.; Van Der A.; R.; Von Der Gathen, P.

Sunnere byer: – Jeg ville prioritert enkel, bilfri tilgang til alt du trenger i hverdagen

Solbakken, Christine Forsetlund

Norges forskningsråd

SuperDARN observations of semidiurnal tidal variability in the MLT and the response to sudden stratospheric warming events

Hibbins, Robert; Espy, Patrick Joseph; Orsolini, Yvan; Limpasuvan, Varavut; Barnes, Robin J.

Using meteor wind data from the Super Dual Auroral Radar Network (SuperDARN) in the Northern Hemisphere, we (1) demonstrate that the migrating (Sun‐synchronous) tides can be separated from the nonmigrating components in the mesosphere and lower thermosphere (MLT) region and (2) use this to determine the response of the different components of the semidiurnal tide (SDT) to sudden stratospheric warming (SSW) conditions. The radars span a limited range of latitudes around 60°N and are located over nearly 180° of longitude. The migrating tide is extracted from the nonmigrating components observed in the meridional wind recorded from meteor ablation drift velocities around 95‐km altitude, and a 20‐year climatology of the different components is presented. The well‐documented late summer and wintertime maxima in the semidiurnal winds are shown to be due primarily to the migrating SDT, whereas during late autumn and spring the nonmigrating components are at least as strong as the migrating SDT. The robust behavior of the SDT components during SSWs is then examined by compositing 13 SSW events associated with an elevated stratopause recorded between 1995 and 2013. The migrating SDT is seen to reduce in amplitude immediately after SSW onset and then return anomalously strongly around 10–17 days after the SSW onset. We conclude that changes in the underlying wind direction play a role in modulating the tidal amplitude during the evolution of SSWs and that the enhancement in the midlatitude migrating SDT (previously reported in modeling studies) is observed in the MLT at least up to 60°N.

American Geophysical Union (AGU)