Browsing Tekniske rapporter (1970-2014) by Subject "Modeller"
Now showing items 1-20 of 24
-
A DISPERSION MODEL FOR INTERREGIONAL AIR POLLUTION PROBLEMS
(NILU TN;1/81, Research report, 1981)The time variation in concentration in three levels is considered by describing: a) advection, b) vertical exchange, c) horizontal diffusion, d) chemical reactions, e) emission from natural and antropogenic sources. Dry ... -
A MATRIX APPROXIMATION TO LARGE SCALE PHOTOCHEMICAL MODEL CALCULATIONS
(NILU TR;11/83, Research report, 1983)The QSSA model for photochemical reactions in the atmosphere is simulated by a limited system of linear differential equations which can be solved analytically. This permits the use of large time-steps, and the computer ... -
A NUMERICAL MODEL SUITABLE FOR THE SIMULATION OF A BROAD CLASS OF CIRCULATION SYSTEMS ON THE ATMOSPHERIC MESOSCALE.
(NILU TR;2/87, Research report, 1987)The report constitutes a documentation of a numerical model for the atmospherical mesoscale. The model includes a high resolution planetary boundary layer parameterication, an equation for ground surface temperature and a ... -
Air pollution modelling. Sources - meteorology - air quality.
(NILU TR;4/93, Research report, 1993) -
BEGRENSNING AV SO2-UTSLIPP I EUROPA. MODELLBEREGNINGER MED REDUSERTE UTSLIPP.
(NILU TN;67/73, Research report, 1973) -
BIDRAG TIL NORDFORSK PROSJEKT "MESO-SKALA SPREDNINGSMODELLER". TØRRAVSETNING OG SPREDNINGSMODELLER - EN OVERSIKT.
(NILU TN;1/78, Research report, 1978)Foredrag holdt ved NORDFORSK-seminaret i Norrköping, Sverige, 1 og 2 november 1977 vedrørende "Spridningsmodellers användning på luftvårdsproblem". -
Brukerveiledning og dokumentasjon for VLUFT. Versjon 3.0.
(NILU TR;9/93, Research report, 1993)VLUFf 3.0 er en PC-basert beregningsmodell for luftforurensning fra vegtrafikk. For et definert vegnett beregnes utslipp av CO, CO2 og NOx, konsentrasjoner av CO, NO2 og PM10 og eksponering av de bosatte langs vegnettet ... -
DETERMINATION OF HUMAN EXPOSURE USING MEASURED DATA OF CD, AS AND PB
(NILU TN;15/81, Research report, 1981)The dietary intake and human exposure of Cd, Pb and As were estimated based upon data taken near a coal-fired power plant in Poland. The use of compartment models for estimating total human exposure has been demonstrated, ... -
Documentation of RoadAir 2.0.
(NILU TR;12/93, Research report, 1993)This is the documentation of the programme RoadAir 2.0, developed at the Norwegian Institute for Air Research. The programme calculates emissions CO, co2 and N02 and concentrations and exposure to CO and N02 in connection ... -
ENKEL MODELL FOR BEREGNING AV NO2 - KONSENTRASJONEN VED GATER.
(NILU TR;2/84, Research report, 1984)En· enkel modell for beregning av No2-konsentrasjonen ved gater er utviklet, basert på utslippsmålinger for N02 fra ulike biltyper, og·målinger av N02 ved gater. -
ESTIMATES OF THE EFFECT OF LOCAL PRECURSOR CONTROL ON THE AMBIENT OZONE CONCENTRATION IN OSLO
(NILU TR;8/82, Research report, 1982)The "EKMA Model" (Empirical kinetic Modeling Approach) has been used to calculate changes in the ambient ozone concentration downwind of Oslo (60 N) for various assumptions of local emission control and transported ozone. ... -
FORSLAG TIL PROSJEKTER SOM BYGGER PÅ ERFARINGER VED UTVIKLINGEN AV EN SPREDNINGSMODELL FOR OSLO.
(NILU TN;38/72, Research report, 1972) -
IDENTIFICATION OF MODELS FOR SOME TIME SERIES OF ATMOSPHERIC ORIGIN WITH AKAIKE'S INFORMATION CRITERION.
(NILU TN;8/79, Research report, 1979)Akaike's method for model identification has been used to identify "Markov" chain models for simple transformations of daily precipitation at three locations in southeast Norway and wind force and wave height at one location ... -
Luftforurensning. En serie foredrag fra NILU.
(NILU TR;5/90, Research report, 1990)Rapporten er sammensatt av 6 foredrag utarbeidet ved NILU i 1989, og inneholder definisjoner, grenseverdier, meteorologi, spredning, modeller, inne-/utemiljø, veitrafikk og luftkvalitetsforholdene i Norge. -
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 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 ... -
OVERVÅKINGSSYSTEM FOR LUFTFORURENSNINGER
(NILU TN;6/80, Research report, 1980)En skisse av hvordan et overvåkingssystem for luftforurensninger bør konstrueres, er tegnet. -
PHOTOCHEMICAL OXIDANT CONTROL STRATEGIES IN EUROPE: A 19 DAYS' CASE STUDY USING A LAGRANGIAN MODEL WITH CHEMISTRY.
(NILU TR; 5/85, Research report, 1985)The trajectory model with atmospheric chemistry developed by NILU, University of Oslo and DNMI (EMEP) has been applied to calculate the oxidant concentration at 9 receptor points in South Scandinavia in the period 26 August ... -
PROGRAM "TFKJEMI". MODELLBEREGNINGER AV FOTOKJEMISKE OKSYDANTER I GRENLAND.
(NILU TN;15/79, Research report, 1979)TFKJEMI er et regnemaskinprogram som kombinerer utslipp, spredning og kjemiske reaksjoner innen et område. Det er anvendt på beregninger av fotokjemiske oksydanter i Grenland, innen et rutenett på 16x32 km2-ruter i 3 nivåer. ... -
Research and development within the local air pollution group at NILU. Annual report 1989.
(NILU TR;6/90, Research report, 1990)The report summarizes some of the research and devleopment conducted by the local air pollution group at NILU during 1989. A major pa rt of this work was linked to air pollution modelling. Models for various kinds of ...