Blar i forfatter Artikler, rapporter og annet (kjemi) "Wind, Peter"

Viser treff 1-10 av 10

    • Adaptive order polynomial algorithm in a multi-wavelet representation scheme 

      Durdek, Antoine Pacifique Romain; Jensen, Stig Rune; Juselius, Jonas; Wind, Peter; Flå, Tor; Frediani, Luca (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Description of the uEMEP_v5 downscaling approach for the EMEP MSC-W chemistry transport model 

      Denby, Bruce; Gauss, Michael; Wind, Peter; Mu, Qing; Wærsted, Eivind Grøtting; Fagerli, Hilde; Valdebenito Bustamante, Alvaro Moises; Klein, Heiko (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-11)
      A description of the new air quality downscaling model – the urban EMEP (uEMEP) and its combination with the EMEP MSC-W model (European Monitoring and Evaluation Programme Meteorological Synthesising Centre West) – is presented. uEMEP is based on well-known Gaussian modelling principles. The uniqueness of the system is in its combination with the EMEP MSC-W model and the “local fraction” calculation ...

    • The EMEP MSC-W chemical transport model - technical description 

      Simpson, David; Benedictow, Anna; Berge, Halldis; Bergström, Robert; Emberson, Lisa D.; Fagerli, Hilde; Flechard, Chris R.; Hayman, Garry D.; Gauss, Michael; Jonson, Jan Eiof; Jenkin, Michael E.; Nyiri, Agnes; Richter, Cornelia; Semeena, Valiyavetil S.; Tsyro, Svetlana; Tuovinen, Juha Pekka; Valdebenito, Alvaro; Wind, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The Meteorological Synthesizing Centre-West (MSC-W) of the European Monitoring and Evaluation Programme (EMEP) has been performing model calculations in support of the Convention on Long Range Transboundary Air Pollution (CLRTAP) for more than 30 years. The EMEP MSC-W chemical transport model is still one of the key tools within European air pollution policy assessments. Traditionally, the model ...

    • Evaluation of global EMEP MSC-W (rv4.34) WRF (v3.9.1.1) model surface concentrations and wet deposition of reactive N and S with measurements 

      Ge, Yao; Heal, Mathew R; Stevenson, David S.; Wind, Peter; Vieno, Massimo (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-18)
      Atmospheric pollution has many profound effects on human health, ecosystems, and the climate. Of concern are high concentrations and deposition of reactive nitrogen (N<sub>r</sub>) species, especially of reduced N (gaseous NH<sub>3</sub>, particulate NH<sub>4</sub> <sup>+</sup>). Atmospheric chemistry and transport models (ACTMs) are crucial to understanding sources and impacts of N<sub>r</sub> ...

    • Impacts of climate and emission changes on nitrogen deposition in Europe: A multi-model study 

      Simpson, David; Andersson, Camilla; Christensen, Jesper Heile; Engardt, Magnuz; Geels, Camilla; Nyiri, Agnes; Posch, Maximilian; Soares, Joana B.P.; Sofiev, Mikhail; Wind, Peter; Langner, Joakim (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Linear scaling Coulomb interaction in the multiwavelet basis, a parallel implementation 

      Jensen, Stig Rune; Juselius, Jonas; Durdek, Antoine Pacifique Romain; Flå, Tor; Wind, Peter; Frediani, Luca (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-08-27)
      We present a parallel and linear scaling implementation of the calculation of the electrostatic potential arising from an arbitrary charge distribution. Our approach is making use of the multi-resolution basis of multiwavelets. The potential is obtained as the direct solution of the Poisson equation in its Green’s function integral form. In the multiwavelet basis, the formally non local ...

    • Modeled deposition of nitrogen and sulfur in Europe estimated by 14 air quality model systems: evaluation, effects of changes in emissions and implications for habitat protection 

      Vivanco, Marta García; Theobald, Mark R.; García-Gómez, Héctor; Garrido, Juan Luis; Prank, Marje; Aas, Wenche; Adani, Mario; Aluyz, Ummugulsum; Andersson, Camilla; Bellasio, Roberto; Bessagnet, Bertrand; Bianconi, Fabio; Bieser, Johannes; Brandt, Jørgen; Briganti, Gino; Cappelletti, Andrea; Curci, Gabriele; Christensen, Jesper H.; Colette, Augustin; Couvidat, Florian; Cuvelier, Cornelis; D'Isidoro, Massimo; Flemming, Johannes; Fraser, Andrea; Geels, Camilla; Hansen, Kaj M.; Hogrefe, Christian; Im, Ulas; Jorba, Oriol; Kitwiroon, Nutthida; Manders, Astrid; Mircea, Mihaela; Otero, Noelia; Pay, Maria-Teresa; Pozzoli, Luca; Solazzo, Efisio; Tsyro, Svetlana; Unal, Alper; Wind, Peter; Galmarini, Stefano (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-17)
      <p>The evaluation and intercomparison of air quality models is key to reducing model errors and uncertainty. The projects AQMEII3 and EURODELTA-Trends, in the framework of the Task Force on Hemispheric Transport of Air Pollutants and the Task Force on Measurements and Modelling, respectively (both task forces under the UNECE Convention on the Long Range Transport of Air Pollution, LTRAP), have brought ...

    • A multi-model study of impacts of climate change on surface ozone in Europe 

      Langner, J.; Engardt, M.; Baklanov, A.; Christensen, J. H.; Gauss, Michael; Geels, Camila; Hedegaard, G.B.; Nuterman, R.; Simpson, D.; Soares, J; Sofiev, M; Wind, Peter; Zakey, A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The impact of climate change on surface ozone over Europe was studied using four offline regional chemistry transport models (CTMs) and one online regional integrated climate-chemistry model (CCM), driven by the same global projection of future climate under the SRES A1B scenario. Anthropogenic emissions of ozone precursors from RCP4.5 for year 2000 were used for simulations of both present and ...

    • Multiwavelets applied to metal–ligand interactions: Energies free from basis set errors 

      Brakestad, Anders; Wind, Peter; Jensen, Stig Rune; Frediani, Luca; Hopmann, Kathrin Helen (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-02)
      Transition metal-catalyzed reactions invariably include steps where ligands associate or dissociate. In order to obtain reliable energies for such reactions, sufficiently large basis sets need to be employed. In this paper, we have used high-precision multiwavelet calculations to compute the metal–ligand association energies for 27 transition metal complexes with common ligands, such as H2, CO, ...

    • Static polarizabilities at the basis set limit: A benchmark of 124 species 

      Brakestad, Anders; Jensen, Stig Rune; Wind, Peter; D'Alessandro, Marco; Genovese, Luigi; Hopmann, Kathrin Helen; Frediani, Luca (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-16)
      Benchmarking molecular properties with Gaussian-type orbital (GTO) basis sets can be challenging, because one has to assume that the computed property is at the complete basis set (CBS) limit, without a robust measure of the error. Multiwavelet (MW) bases can be systematically improved with a controllable error, which eliminates the need for such assumptions. In this work, we have used MWs within ...