Blar i NILU Brage på tittel
Viser treff 2211-2230 av 3437
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Odds and ends of atmospheric mercury in Europe and over the North Atlantic Ocean: temporal trends of 25 years of measurements
(Peer reviewed; Journal article, 2022)The global monitoring plan of the Minamata Convention on Mercury was established to generate long-term data necessary for evaluating the effectiveness of regulatory measures at a global scale. After 25 years of monitoring ... -
OKSIDANTDANNELSE I FORBINDELSE MED UTSLIPP FRA BRENNING AV NATURGASS PÅ OLJEFELTENE I NORDSJØEN.
(NILU OR; 8/86, Research report, 1986)Det er gjort et overslag som viser at utslippene av ikke-metan hydrokarboner og nitrogenoksider i forbindelse med brenning av gass i fakler i Nordsjøen, sannsynligvis er så små at det er liten mulighet for nevneverdig ... -
OM BIDRAG TIL KONSENTRASJONEN AV NO2 OVER OSLO SENTRUM FRA ET VARMEKRAFTVERK VED OSLOFJORDEN
(NILU OR;40/79, Research report, 1979)Innflytelsen av nitrogenoksyd-utslippet fra et varmekraftverk ved Oslofjorden på NO2-konsentrasjonen over Oslo sentrum er vurdert. I tilfeller med vind fra sør kan et oljefyrt varmekraftverk føre til en 50% økning i nåværende ... -
Omregning av EU-kommisjonens forslag til nye grenseverdier, fra prosentilverdier til maksimalverdier.
(NILU OR; 14/98, Research report, 1998)EU-kommisjonen har lagt fram forslag til nye grenseverdier for luftkvalitet for SO2, NO2, PM10 og bly. De nye grenseverdiene, som er prosentilverdier, er omregnet til maksimalverdier på grunnlag av norske måledata de siste ... -
OMSETNING AV SVOVEL OG NITROGEN I ATMOSFÆREN
(NILU OR; 16/83, Research report, 1983)Det er undersøkt hvordan forandringer av engelske utslipp av svoveldioksyd, nitrogenoksyder og hydrokarboner kan påvirke avsetningen av svovel og nitrogenkomponenter over Sør-Skandinavia. Beregningene viser at en 25% ... -
Omvandling og avsetning av nitrogenforbindelser i atmosfæren over hav og kystnære områder.
(NILU OR; 10/95, Research report, 1995)Rapporten inneholder en teoretisk gjennomgang av fotokjemiske reaksjoner og avsetningsprosesser med spesiell vekt på prosesser over hav og kystnære områder. -
On Aethalometer measurement uncertainties and an instrument correction factor for the Arctic
(Journal article; Peer reviewed, 2017) -
ON AIR POLLUTION TRANSPORT TO THE NORWEGIAN ARCTIC.
(NILU OR; 59/85, Research report, 1985)Ground level measurements of sulphate made at Ny Ålesund and Bjørnøya during the period 1979-08-24 through 1984-08-31, has been analysed and used to identify episodes of polluted and clean air in the Norwegian Arctic. By ... -
On coarse patterns in the atmospheric concentration of ice nucleating particles
(Peer reviewed; Journal article, 2023)The atmospheric concentration of ice nucleating particles active at around −10 °C (INP−10) is very low. Nevertheless, these particles play a role in the development of cloud systems, so their spatial and temporal patterns ... -
ON HORIZONTAL WIND FIELD ESTIMATION BASED ON A FEW MEASUREMENT STATIONS IN WINTER FLOW OVER OSLO.
(NILU TN;6/81, Research report, 1981)Romlig egenskaper ved vindfeltet over Oslo er analysert ved hjelp av data fra 8 målestasjoner. En homogen og isotrop. versjon av Gandins teori for optimal interpolasjon ser ut til å estimere varslingsfeil med bra nøyaktighet. -
ON OPTIMAL METEOROLOGICAL PREDICTION OF TRAJECTORIES THROUGH STOCHASTIC FLOW FIELDS
(NILU TN;3/80, Research report, 1980)The dependence of some physical processes upon environmental flow and flow prediction is approached. Procedures for obtaining sufficiently accurate prediction methods for these processes are outlined. -
On the composite response of the MLT to major sudden stratospheric warming events with elevated stratopause
(Journal article; Peer reviewed, 2016) -
On the Convergence and Capability of the Large-Eddy Simulation of Concentration Fluctuations in Passive Plumes for a Neutral Boundary Layer at Infinite Reynolds Number
(Peer reviewed; Journal article, 2020)Large-eddy simulation (LES) experiments have been performed using the Parallelized LES Model (PALM). A methodology for validating and understanding LES results for plume dispersion and concentration fluctuations in an ... -
On the interfacial roughness scale in turbulent stratified two-phase flow: 3D lattice Boltzmann numerical simulations with forced turbulence and surfactant
(Journal article; Peer reviewed, 2015) -
ON THE PREDICTION OF HAZARD AREA RESULTING FROM A GAS RELEASE
(NILU TN;1/80, Research report, 1980)The size of the predicted hazard area following the release of a hazardous gas cloud is estimated to depend more upon prediction error for actual atmospheric flow and flow parameters than upon the accuracy of the diffusion ... -
ON THE PREDICTION OF HAZARD AREA RESULTING FROM A GAS RELEASE
(NILU OR;1/81, Research report, 1981)A synthesis of hazard area prediction followinq the release of a hazardous gas cloud is developed. At a fixed risk level the predicted hazard area is estimated to depend much upon prediction errors for actual atmospheric ... -
On the Robustness of Field calibration for Smart air quality monitors
(Peer reviewed; Journal article, 2020)The robustness of field calibrated Air Quality Multi-sensors (AQM) performances to long term and/or mobile operation is still debated. Though accuracy generally exceeds the one of laboratory calibrations models, experimental ... -
On the search for an intelligible comet assay descriptor
(Journal article; Peer reviewed, 2014) -
ON THE SUITABILITY OF "BADGE" AIR SAMPLERS FOR HUMAN EXPOSURE ASSESSMENT
(NILU OR;1/82, Research report, 1982)A brief literature scan suggests that personal monitoring of human exposures to air pollutants is essential in health impact assessment. Passive personal exposure monitoring devices (PEMs) are simple, inexpensive, rugged, ... -
On the tuning of atmospheric inverse methods: comparisons with the European Tracer Experiment (ETEX) and Chernobyl datasets using the atmospheric transport model FLEXPART
(Peer reviewed; Journal article, 2020)Estimation of the temporal profile of an atmospheric release, also called the source term, is an important problem in environmental sciences. The problem can be formalized as a linear inverse problem wherein the unknown ...