Sam Erik Walker

Image of Sam Erik Walker
Norwegian version of this page
Mobile phone +47 99700159
Room 821
Username
Tags: Statistics, Statistics and biostatistics

Publications

  • Karl, Matthias; Walker, Sam-Erik; Solberg, Sverre & Ramacher, Martin O. P. (2019). The Eulerian urban dispersion model EPISODE – Part 2: Extensions to the source dispersion and photochemistry for EPISODE–CityChem v1.2 and its application to the city of Hamburg. Geoscientific Model Development.  ISSN 1991-959X.  12, s 3357- 3399 . doi: 10.5194/gmd-12-3357-2019 Full text in Research Archive. Show summary
  • Karl, Matthias; Svendby, Tove Marit; Walker, Sam-Erik; Velken, Anna von Streng; Castell Balaguer, Nuria & Solberg, Sverre (2015). Modelling atmospheric oxidation of 2-aminoethanol (MEA) emitted from post-combustion capture using WRF-Chem. Science of the Total Environment.  ISSN 0048-9697.  527-528, s 185- 202 . doi: 10.1016/j.scitotenv.2015.04.108 Full text in Research Archive.
  • Walker, Sam-Erik; Hermansen, Gudmund Horn & Hjort, Nils Lid (2015). Model selection and verification for ensemble based probabilistic forecasting of air pollution in Oslo, Norway, In Francisco J. Samaniego (ed.),  Proceedings of the 60th World Statistics Congress of the International Statistical Institute, ISI2015.  The International Statistical Institute.  ISBN 978-90-73592-35-3.  1.  s 3131 - 3136 Show summary
  • Karl, Matthias; Castell, Nuria; Simpson, David; Solberg, Sverre; Starrfelt, Jostein; Svendby, Tove Marit; Walker, Sam-Erik & Wright, Richard Frederic (2014). Uncertainties in assessing the environmental impact of amine emissions from a CO2 capture plant. Atmospheric Chemistry and Physics.  ISSN 1680-7316.  14(16), s 8533- 8557 . doi: 10.5194/acp-14-8533-2014 Full text in Research Archive. Show summary
  • Vanem, Erik & Walker, Sam-Erik (2013). Identifying trends in the ocean wave climate by time series analyses of significant wave height data. Ocean Engineering.  ISSN 0029-8018.  61, s 148- 160 . doi: 10.1016/j.oceaneng.2012.12.042
  • Vanem, Erik & Walker, Sam-Erik (2013). Time Series Analysis of Significant Wave Height Data for Identification of Trends in the Ocean Wave Climate, In conference ASME (ed.),  Proceedings of ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2013). Volume 2A: Structures, Safety and Reliability.  ASME Press.  ISBN 978-0-7918-5532-4.  Paper No. OMAE2013-10024.
  • Walker, Sam-Erik (2012). WORM: A new open road line source model for low wind speed conditions. International Journal of Environment and Pollution.  ISSN 0957-4352.  47(1/2/3/4), s 348- 357
  • Denby, Bruce; Dudek, Agnes V; Walker, Sam-Erik; Costa, Ana Margarida; Monteiro, Alexandra; van den Elshout, Sef & Fisher, Bernard (2011). Towards uncertainty mapping in air-quality modelling and assessment. International Journal of Environment and Pollution.  ISSN 0957-4352.  44(1-4), s 14- 23 . doi: 10.1504/IJEP.2011.038398
  • Slini, Theodora; Walker, Sam-Erik & Moussiopoulos, Nicolas (2011). Data assimilation within the Air4EU project: the Athens case. International Journal of Environment and Pollution.  ISSN 0957-4352.  44(1-4), s 298- 306 . doi: 10.1504/IJEP.2011.038430
  • Walker, Sam-Erik (2011). WORM: A new open road line source model for low wind speed conditions. International Journal of Environment and Pollution.  ISSN 0957-4352.  47(1-4), s 348- 357
  • Berger, Janne; Walker, Sam-Erik; Denby, Bruce; Berkowicz, Ruwim; Løfstrøm, Per; Ketzel, Matthias; Härkönen, Jari; Nikmo, Juha & Karppinen, Ari (2010). Evaluation and inter-comparison of open road line source models currently in use in the Nordic countries. Boreal environment research.  ISSN 1239-6095.  15(3), s 319- 334 Full text in Research Archive.
  • Madsen, Christian; Gehring, Ulrike; Walker, Sam-Erik; Brunekreef, Bert; Stigum, Hein; Næss, Øyvind Erik & Nafstad, Per (2010). Ambient air pollution exposure, residential mobility and term birth weight in Oslo, Norway. Environmental Research.  ISSN 0013-9351.  110(4), s 363- 371 . doi: 10.1016/j.envres.2010.02.005
  • Oftedal, Bente Margaret; Walker, Sam-Erik; Gram, Frederick; McInnes, Harold & Nafstad, Per (2009). Modelling long-term averages of local ambient air pollution in Oslo, Norway: evaluation of nitrogen dioxide, PM10 and PM2.5. International Journal of Environment and Pollution.  ISSN 0957-4352.  36(1-3), s 110- 126
  • Oftedal, Bente Margaret; Brunekreef, Bert; Nystad, Wenche; Madsen, Christian; Walker, Sam-Erik & Nafstad, Per (2008). Residential outdoor air pollution and lung function in schoolchildren. Epidemiology.  ISSN 1044-3983.  19(1), s 129- 137 . doi: 10.1097/EDE.0b013e31815c0827

View all works in Cristin

  • Myhre, Cathrine Lund; Svendby, Tove Marit; Hermansen, Ove; Lunder, Chris Rene; Platt, Stephen Matthew; Fiebig, Markus; Fjæraa, Ann Mari; Hansen, Georg Heinrich; Schmidbauer, Norbert; Krognes, Terje & Walker, Sam-Erik (2018). Monitoring of greenhouse gases and aerosols at Svalbard and Birkenes in 2017 - Annual report. NILU rapport. 29/2018. Full text in Research Archive. Show summary
  • Solberg, Sverre; Walker, Sam-Erik; Schneider, Philipp; Guerreiro, Cristina & Colette, Augustin (2018). Discounting the effect of meteorology on trends in surface ozone: Development of statistical tools. ETC/ACM Technical Paper. 2017/15. Show summary
  • Walker, Sam-Erik & Hjort, Nils Lid (2018). Focused model selection and inference using robust estimators..
  • Walker, Sam-Erik & Hjort, Nils Lid (2017). Estimation and model selection by data-driven weighted likelihoods..
  • Walker, Sam-Erik & Hjort, Nils Lid (2017). Estimation and model selection by data-driven weighted likelihoods..
  • Walker, Sam-Erik & Hjort, Nils Lid (2017). Estimation and model selection via maximum weighted likelihoods..
  • Walker, Sam-Erik & Hjort, Nils Lid (2017). Focused model selection and inference using robust estimators..
  • Walker, Sam-Erik & Hjort, Nils Lid (2016). Model selection and focused inference using robust estimators..
  • Walker, Sam-Erik & Hjort, Nils Lid (2016). Model selection and focused inference using robust estimators..
  • Walker, Sam-Erik (2015). Confidence distributions based on M-estimators..
  • Walker, Sam-Erik; Hjort, Nils Lid & Hermansen, Gudmund Horn (2015). Model selection and verification for ensemble based probabilistic forecasting of air pollution in Oslo, Norway.
  • Karl, Matthias & Walker, Sam-Erik (2014). Method and tool selection within the pilot study of air quality in Poland: Data fusion methodologies. NILU OR (NILU Oppdragsrapport). 34/2014.
  • Steinbakk, Gunnhildur Högnadóttir; Thorarinsdottir, Thordis Linda; Lahoz, William A. & Walker, Sam-Erik (2014). Data assimilation and statistical post-processing for numerical air quality predictions. NR-notat. SAMBA/49/14.
  • Madsen, Christian; Gehring, U; Walker, SE; Brunekreef, B; Stigum, Hein; Næss, Øyvind Erik & Nafstad, Per (2009). Ambient Air Pollution Exposure, Residential Mobility and Term Birth Weight in Oslo, Nonway. Epidemiology.  ISSN 1044-3983.  20(6), s S151- S151
  • Clench-Aas, Jocelyne; Aldrin, Magne; Bartonova, A.; Follestad, Turid; Walker, Sam-Erik; Skjønsberg, Ole Henning; Giæver, Petter & Moseng, J. (2000). The short- and long-term effects of air pollution on symptoms of reduced health in a panel of chool-age children. NILU OR (NILU Oppdragsrapport). 65/99.

View all works in Cristin

Published Nov. 5, 2014 11:27 AM - Last modified Oct. 5, 2016 11:28 AM

Projects

No ongoing projects

Research groups