Publikasjoner

The distribution of atmospheric black carbon in the marine boundary layer over the North Atlantic and the Russian Arctic Seas in July - October 2015.

Shevchenko, V.P.; Kopeikin, V.M.; Evangeliou, N.; Novigatsky, A.N.; Pankratova, N.V.; Starodymova, D.P.; Stohl, A.; Thompson, R.

The dynamics of concentration fluctuations within passive scalar plumes in a turbulent neutral boundary layer

Cassiani, Massimo; Ardeshiri, Hamidreza; Pisso, Ignacio; Salizzoni, Pietro; Marro, Massimo; Stohl, Andreas; Stebel, Kerstin; Park, Soon-Young

We investigate the concentration fluctuations of passive scalar plumes emitted from small, localised (point-like) steady sources in a neutrally stratified turbulent boundary layer over a rough wall. The study utilises high-resolution large-eddy simulations for sources of varying sizes and heights. The numerical results, which show good agreement with wind-tunnel studies, are used to estimate statistical indicators of the concentration field, including spectra and moments up to the fourth order. These allow us to elucidate the mechanisms responsible for the production, transport and dissipation of concentration fluctuations, with a focus on the very near field, where the skewness is found to have negative values – an aspect not previously highlighted. The gamma probability density function is confirmed to be a robust model for the one-point concentration at sufficiently large distances from the source. However, for ground-level releases in a well-defined area around the plume centreline, the Gaussian distribution is found to be a better statistical model. As recently demonstrated by laboratory results, for elevated releases, the peak and shape of the pre-multiplied scalar spectra are confirmed to be independent of the crosswind location for a given downwind distance. Using a stochastic model and theoretical arguments, we demonstrate that this is due to the concentration spectra being directly shaped by the transverse and vertical velocity components governing the meandering of the plume. Finally, we investigate the intermittency factor, i.e. the probability of non-zero concentration, and analyse its variability depending on the thresholds adopted for its definition.

Cambridge University Press

The early adoption of battery electric trucks - Results from the MoZEES case study on electrification and hydrogen solutions for trucks in Norway

Hovi, Inger Beate; Pinchasik, Daniel Ruben; Figenbaum, Erik; Thorne, Rebecca Jayne

The effect of a brominated flame retardant, tetrabromobisphenol-A, on free radical formation in human neutrophil granulocytes: The involvement of the MAP kinase pathway and protein kinase C.

Reistad, T.; Mariussen, E.; Fonnum, F.

The effect of anthropogenic and natural stressors on reproductive performance and survival in a high arctic and sub-arctic marine benthic predator, the common eider. NILU F

Hanssen, S.A.; Moe, B.; Bustnes, J.O.; Nordstad, T.; Fenstad, A.; Sagerup, K.; Bourgeon, S.; Gabrielsen, G.W.; Herzke, D.

The effect of brominated flame retardants on free radical formation in human neutrophil granulocytes: the involvement of the map-kinase pathway. Poster presentation. NILU F

Reistad, T.; Mariussen, E.; Funnum, F.

The effect of brominated flame-retardants on membranes from the central nervous system. Poster presentation. NILU F

Mariussen, E.; Schlabach, M.; Fonnum, F.

The effect of controlled indoor activities on the particulate matter mass and number concentrations.

Chatoutsidou, S.E.; Serfozo, N.; Kopanakis, I.; Glytsos, T.; Lazaridis, M.

The effect of forest fires in emissions of biogenic volatile organic compounds and windblown dust over urban areas.

Aleksandropoulou, V.; Tørseth, K.; Lazaridis, M.

The effect of intrinsic properties and UV-degradation on the fate of microplastic fibers in the marine environment

Sørensen, Lisbet; Booth, Andrew; Sait, Shannen; Salaverria-Zabalegui, Iurgi Imanol; Sathananthan, Dhiya Sumar; Abrahams, Alexandra Kate; Del Puerto, Oihane; Groven, Anette Synnøve; Hovsbakken, Ingrid Alver; Igartua, Amaia; Davies, Emlyn John; Sarno, Antonio; Ribicic, Deni; Brakstad, Odd Gunnar; Asimakopoulos, Alexandros; Halsband, Claudia; Herzke, Dorte

The effect of migration and fasting on fatty acid profiles and organochlorine contaminant burdens in humpback whales.

Waugh, C.A.; Nash, S.M.B.; Nichols, P.; Schlabach, M.; Noad, M.

The effect of particle resuspension during walking activity to PM10 mass and number concentrations in an indoor microenvironment.

Serfozo, N.; Chatoutsidou, S.E.; Lazaridis, M.

The effect of polychlorinated biphenyls at the neurotransmitter receptor level in the brain. NILU F

Mariussen, E.; Hertel-Aas, T.; Reistad, T.; Myhre, O.,, Fonnum, F.