Publications

Uncertainty in mapping urban air quality using crowdsourcing techniques.

Schneider, P.; Castell, N.; Lahoz, W.; Bartonova, A.; the CITI-SENSE Consortium Team.

Uncertainty in Citizen Science observations: from measurement to user perception.

Lahoz, W.; Schneider, P.; Castell, N.

Uncertainty assessment in European air quality mapping and exposure studies.

Denby, B.R.; Horalek, J.; de Leeuw, F.; de Smet, P.

Uncertainty assessment and applicability of an inversion method for volcanic ash forecasting.

Steensen, B. M.; Kylling, A.; Kristiansen, N. I.; Schulz, M.

Uncertainty analysis of modelling studies included in air quality assessments.

Moussiopoulos, N.; Sahm, P.; Munchow, S.; Tønnesen, D.; de Leeuw, F.; Tarrasón, L.

Uncertaintines in the inverse modelling of sulphur dioxide eruption profiles.

Seibert, P.; Eckhardt, S.; Kristiansen, N.; Prata, F.; Richter, A.; Stohl, A.

Uncertainties in the inverse modelling of sulphur dioxide eruption profiles. Corrigendum.

Seibert, P.; Kristiansen, N.I.; Richter, A.; Eckhardt, S.; Prata, A.J.; Stohl, A.

Uncertainties in recent satellite ozone profile trend assessments (SI2N, WMO 2014) : A network-based assessment of fourteen contributing limb and occultation data records.

Hubert, D.; Lambert, J.-C.; Verhoelst, T.; Granville, J.; Keppens, A.; Cortesi, U.; Degenstein, D.,A.; Froidevaux, L.; Godin-Beekmann, S.; Hoppel, K.,W.; Kyrölä, E.; Leblanc, T.; Lichtenberg, G.; McDermid, S.; McElroy, T.; Murtagh, D.; Nakane, H.; Russell III, J.R.; Smit, H.G.J.; Stebel, K.; Steinbrecht, W.; Stübi, R.; Swart, D.P.J.; Taha, G.; Thompson, A.M.; Urban, J.; van Gijsel, A.; von der Gathen, P.; Walker, K.A.; Zawodny, J.M.

Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling.

Melymuk, L.; Bohlin-Nizzetto, P.; Prokeš, R.; Kukucka, P.; Pribylová, P.; Vojta, Š.; Kohoutek, J.; Lammel, G.; Klánová, J.

Uncertainties in assessing the environmental impact of amine emissions from a CO2 capture plant.

Karl, M.; Castell, N.; Simpson, D.; Solberg, S.; Starrfelt, J.; Svendby, T.; Walker, S.-E.; Wright, R.F.

Uncertainties associated with Lagrangian transport in greenhouse gas flux estimates

Pisso, Ignacio

Atmospheric Lagrangian particle dispersion models (LPDMs) are commonly combined with Bayesian inversion/optimization methods to infer emission fluxes across spatial scales from local to global. These tools are central to monitoring greenhouse gases, especially CO₂, CH₄, and N₂O. However, uncertainties in flux estimates arise from multiple sources: prior flux information, representation of the background atmospheric composition, statistical model choices (including hyperparameters and error covariance assumptions), and errors in atmospheric transport. In this presentation, we describe current uncertainty quantification activities linked to ongoing projects (e.g. EYE-CLIMA). We will discuss the use of meteorological ensemble simulations to assess transport related uncertainty and explore connections with dynamical systems tools and common assumptions such as Gaussian errors. Emphasis will be placed on high-resolution transport modelling applications.

UN/ECE International co-operative programme on effects on materials, including historic and cultural monuments. Evaluation of decay of painted systems for steel after 1 and 2 years of exposure (1997-1999). Report no. 39. NILU OR

Henriksen, J.F.; Anda, O.

The paint steel panels coated with two layers alkyd paint (total 80 µm) have been exposed for 1 and 2 years. The damage of the paint system has been evaluated by using the well-established ASTM-standards. Damage from the cut is observed at all test sites, and after two years. ASTM values from 9 to 6 are observed. Comparing the results with the environmental parameters seems to indicate that the damage is affected by air pollution like in the big cities. However, the damage is also surprisingly high at rural sites, particularly at sites with high amount of rain.Filiform corrosion, shown as thin whiskers under the paint film from the cut, is more dominated in the second phase of the programme than in first phase 1987-1989.Cracking of the corrosion protection paint films has been observed on samples from the Tel Aviv site after two years, but was never observed in the first phase of the programme.