Zobrazeno 1 - 10
of 39
pro vyhledávání: '"C. A. Skjøth"'
Autor:
A. Kurganskiy, C. A. Skjøth, A. Baklanov, M. Sofiev, A. Saarto, E. Severova, S. Smyshlyaev, E. Kaas
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 2099-2121 (2020)
Information about distribution of pollen sources, i.e. their presence and abundance in a specific region, is important, especially when atmospheric transport models are applied to forecast pollen concentrations. The goal of this study is to evaluate
Externí odkaz:
https://doaj.org/article/bca792ab72a043bf8f3902e9dc65c739
Autor:
R. G. Peel, P. V. Ørby, C. A. Skjøth, R. Kennedy, V. Schlünssen, M. Smith, J. Sommer, O. Hertel
Publikováno v:
Biogeosciences, Vol 11, Iss 3, Pp 821-832 (2014)
In this study, the diurnal atmospheric grass pollen concentration profile within the Danish city of Aarhus was shown to change in a systematic manner as the pollen season progressed. Although diurnal grass pollen profiles can differ greatly from day-
Externí odkaz:
https://doaj.org/article/e19558a79c354a3bafc76e2fe103aa2a
Publikováno v:
Biogeosciences, Vol 10, Iss 7, Pp 4577-4589 (2013)
The understanding of biochemical feedback mechanisms in the climate system is lacking knowledge in relation to bi-directional ammonia (NH3) exchange between natural ecosystems and the atmosphere. We therefore study the atmospheric NH3 fluxes during a
Externí odkaz:
https://doaj.org/article/267ff6a84dda4a1ab012043bf8c9b84d
Autor:
D. C. Oderbolz, S. Aksoyoglu, J. Keller, I. Barmpadimos, R. Steinbrecher, C. A. Skjøth, C. Plaß-Dülmer, A. S. H. Prévôt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 4, Pp 1689-1712 (2013)
Biogenic volatile organic compounds (BVOC) emitted from vegetation are important for the formation of secondary pollutants such as ozone and secondary organic aerosols (SOA) in the atmosphere. Therefore, BVOC emission are an important input for air q
Externí odkaz:
https://doaj.org/article/8184703fbef842c496fb4513b38c0ac2
Autor:
C. A. Skjøth, C. Geels
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 1, Pp 117-128 (2013)
We present here a dynamical method for modelling temporal and geographical variations in ammonia emissions in regional-scale chemistry transport models (CTMs) and chemistry climate models (CCMs). The method is based on the meteorology in the models a
Externí odkaz:
https://doaj.org/article/3582505a1b844a78aa53decdeb1f4540
Autor:
C. A. Skjøth, P. V. Ørby, T. Becker, C. Geels, V. Schlünssen, T. Sigsgaard, J. H. Bønløkke, J. Sommer, P. Søgaard, O. Hertel
Publikováno v:
Biogeosciences, Vol 10, Iss 1, Pp 541-554 (2013)
We examine here the hypothesis that during flowering, the grass pollen concentrations at a specific site reflect the distribution of grass pollen sources within a few kilometres of this site. We perform this analysis on data from a measurement campai
Externí odkaz:
https://doaj.org/article/aa80661d3a924673b8dd147c80754c71
Autor:
O. Hertel, C. A. Skjøth, S. Reis, A. Bleeker, R. M. Harrison, J. N. Cape, D. Fowler, U. Skiba, D. Simpson, T. Jickells, M. Kulmala, S. Gyldenkærne, L. L. Sørensen, J. W. Erisman, M. A. Sutton
Publikováno v:
Biogeosciences, Vol 9, Iss 12, Pp 4921-4954 (2012)
Reactive nitrogen (Nr) compounds have different fates in the atmosphere due to differences in the governing processes of physical transport, deposition and chemical transformation. Nr compounds addressed here include reduced nitrogen (NHx: ammonia (N
Externí odkaz:
https://doaj.org/article/10c37f62272145afa6df25fc90fc8a7a
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 22, Pp 11107-11123 (2012)
This study examines the hypothesis that Danish agricultural areas are the main source of airborne Alternaria spores in Copenhagen, Denmark. We suggest that the contribution to the overall load is mainly local or regional, but with intermittent long d
Externí odkaz:
https://doaj.org/article/802c18279e8a43b8b9918c72e09202d7
Autor:
C. A. Skjøth, C. Geels, H. Berge, S. Gyldenkærne, H. Fagerli, T. Ellermann, L. M. Frohn, J. Christensen, K. M. Hansen, K. Hansen, O. Hertel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 11, Pp 5221-5236 (2011)
Deriving a parameterisation of ammonia emissions for use in chemistry-transport models (CTMs) is a complex problem as the emission varies locally as a result of local climate and local agricultural management. In current CTMs such factors are general
Externí odkaz:
https://doaj.org/article/0f2f3e72ea3a4fc4ac6348cc6023197f
Publikováno v:
Advances in Meteorology, Vol 2015 (2015)
We have evaluated three prognostic variables in Weather Research and Forecasting (WRF) model, mean daily temperature, daily maximum temperature, and daily minimum temperature using 9 months of model simulations at 36 and 12 km resolution, and compare
Externí odkaz:
https://doaj.org/article/996dfab415e647a4a56db26392ec30c5