Betrouwbaarheidsanalyse van de berekeningen voor 1992 van de NHx en NOy droge deposities met het DEADM model
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Type
Report
Language
nl
Date
1995-05-31
Research Projects
Organizational Units
Journal Issue
Title
Betrouwbaarheidsanalyse van de berekeningen voor
1992 van de NHx en NOy droge deposities met het DEADM
model
Translated Title
Reliability analysis of the NHx and NOy dry
deposition fluxes calculated for 1992 with the DEADM
model
Published in
Abstract
Door middel van Monte Carlo sampling en simulatie wordt
de betrouwbaarheid bepaald van de voorspellingen voor de jaargemiddelde
droge NHx en NOy depositiefluxen, berekend met het depositiemodel DEADM. De
berekeningen zijn uitgevoerd voor honderd 5 x 5 km gebieden in Nederland (6%
van het totale gebied), op basis van NHx en NOy concentraties, oppervlakte
gegevens en gepostuleerde onzekerheden in modelparameters c.q. inputs.
Resultaten worden gepresenteerd in termen van verdelingen,
betrouwbaarheidsintervallen en betrouwbaarheidsfactoren, zowel op de
ruimtelijke schaal van 5 x 5 km gebieden als voor verzuringsgebieden en
geheel Nederland. Voor de NHx depositie worden de resultaten vergeleken met
de voorspellingen van het atmosferisch transportmodel
OPS.
By means of Monte Carlo Sampling and simulation the reliability is assessed of the predictions of yearly averaged dry NHx and NOy deposition fluxes, calculated with the deposition model DEADM. These calculations are performed for hundred 5 x 5 km receptor areas in the Netherlands (6% of the total area), based on NHx and NOy concentration data, surface characteristics and postulated uncertainties in model parameters and inputs. Results are presented in terms of probability distributions, confidence intervals and reliability factors, on the spatial scale of 5 x 5 km areas as well as for acidification areas and the national scale. The NHx results are compared with the predictions by the atmospheric transport model OPS.
By means of Monte Carlo Sampling and simulation the reliability is assessed of the predictions of yearly averaged dry NHx and NOy deposition fluxes, calculated with the deposition model DEADM. These calculations are performed for hundred 5 x 5 km receptor areas in the Netherlands (6% of the total area), based on NHx and NOy concentration data, surface characteristics and postulated uncertainties in model parameters and inputs. Results are presented in terms of probability distributions, confidence intervals and reliability factors, on the spatial scale of 5 x 5 km areas as well as for acidification areas and the national scale. The NHx results are compared with the predictions by the atmospheric transport model OPS.
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RIVM