Sam-Erik Walker

712 total citations
23 papers, 453 citations indexed

About

Sam-Erik Walker is a scholar working on Health, Toxicology and Mutagenesis, Atmospheric Science and Environmental Engineering. According to data from OpenAlex, Sam-Erik Walker has authored 23 papers receiving a total of 453 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Health, Toxicology and Mutagenesis, 12 papers in Atmospheric Science and 10 papers in Environmental Engineering. Recurrent topics in Sam-Erik Walker's work include Air Quality and Health Impacts (14 papers), Atmospheric chemistry and aerosols (11 papers) and Air Quality Monitoring and Forecasting (9 papers). Sam-Erik Walker is often cited by papers focused on Air Quality and Health Impacts (14 papers), Atmospheric chemistry and aerosols (11 papers) and Air Quality Monitoring and Forecasting (9 papers). Sam-Erik Walker collaborates with scholars based in Norway, Germany and India. Sam-Erik Walker's co-authors include Sverre Solberg, Erik Vanem, Matthias Karl, Bert Brunekreef, Wenche Nystad, Bente Oftedal, Christian Madsen, Per Nafstad, David Simpson and Philipp Schneider and has published in prestigious journals such as The Science of The Total Environment, Atmospheric Environment and Atmospheric chemistry and physics.

In The Last Decade

Sam-Erik Walker

22 papers receiving 440 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Sam-Erik Walker Norway 10 288 180 148 118 70 23 453
Wan-Li Cheng Taiwan 11 328 1.1× 232 1.3× 299 2.0× 187 1.6× 30 0.4× 19 587
Marlene Schmidt Plejdrup Denmark 9 224 0.8× 176 1.0× 218 1.5× 40 0.3× 151 2.2× 18 426
Hossein Malakooti Iran 9 150 0.5× 150 0.8× 177 1.2× 147 1.2× 30 0.4× 29 389
Vasileios N. Matthaios United Kingdom 13 240 0.8× 149 0.8× 134 0.9× 54 0.5× 114 1.6× 23 365
Bruce Ainslie Canada 12 227 0.8× 194 1.1× 213 1.4× 108 0.9× 81 1.2× 28 445
Tomohito Matsuo Japan 11 199 0.7× 178 1.0× 204 1.4× 84 0.7× 43 0.6× 28 364
V. Aleksandropoulou Greece 14 377 1.3× 210 1.2× 166 1.1× 115 1.0× 75 1.1× 21 484
Yvonne Scorgie Australia 12 199 0.7× 193 1.1× 143 1.0× 169 1.4× 44 0.6× 20 374
F. Freedman United States 10 268 0.9× 198 1.1× 257 1.7× 157 1.3× 38 0.5× 17 443

Countries citing papers authored by Sam-Erik Walker

Since Specialization
Citations

This map shows the geographic impact of Sam-Erik Walker's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Sam-Erik Walker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sam-Erik Walker more than expected).

Fields of papers citing papers by Sam-Erik Walker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sam-Erik Walker. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Sam-Erik Walker. The network helps show where Sam-Erik Walker may publish in the future.

Co-authorship network of co-authors of Sam-Erik Walker

This figure shows the co-authorship network connecting the top 25 collaborators of Sam-Erik Walker. A scholar is included among the top collaborators of Sam-Erik Walker based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Sam-Erik Walker. Sam-Erik Walker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
López-Aparicio, Susana, et al.. (2024). Exploring the connection between COVID19, the energy crisis and PM2.5 emissions from residential heating. Cleaner Environmental Systems. 15. 100244–100244. 2 indexed citations
2.
Dhaka, S. K., et al.. (2024). Long-term meteorology-adjusted and unadjusted trends of PM2.5 using the AirGAM model over Delhi, 2007–2022. Atmospheric Environment X. 22. 100255–100255. 2 indexed citations
3.
Dhaka, S. K., et al.. (2024). Decoding temporal patterns and trends of PM10 pollution over Delhi: a multi-year analysis (2015–2022). Environmental Monitoring and Assessment. 196(6). 500–500. 8 indexed citations
4.
Walker, Sam-Erik, Bruce Denby, Ruwim Berkowicz, et al.. (2024). Evaluation and inter-comparison of open road line source models currently in use in the Nordic countries. Boreal environment research. 15(3). 319–334.
5.
Walker, Sam-Erik, Sverre Solberg, Philipp Schneider, & Cristina Guerreiro. (2023). The AirGAM 2022r1 air quality trend and prediction model. Geoscientific model development. 16(2). 573–595. 4 indexed citations
6.
Hamer, Paul, Sam-Erik Walker, & Philipp Schneider. (2021). Appropriate Assimilation Methods for Air Quality Prediction and Pollutant Emission Inversion. An Urban Data Assimilation Systems Report.. Duo Research Archive (University of Oslo). 1 indexed citations
7.
Solberg, Sverre, Sam-Erik Walker, Philipp Schneider, & Cristina Guerreiro. (2021). Quantifying the Impact of the Covid-19 Lockdown Measures on Nitrogen Dioxide Levels throughout Europe. Atmosphere. 12(2). 131–131. 32 indexed citations
8.
Hamer, Paul, Sam-Erik Walker, Matthias Vogt, et al.. (2020). The urban dispersion model EPISODE v10.0 – Part 1: An Eulerian and sub-grid-scale air quality model and its application in Nordic winter conditions. Geoscientific model development. 13(9). 4323–4353. 28 indexed citations
9.
Walker, Sam-Erik & Philipp Schneider. (2020). A study of the relative expanded uncertainty formula for comparing low-cost sensor and reference measurements. Duo Research Archive (University of Oslo). 1 indexed citations
10.
Karl, Matthias, Sam-Erik Walker, Sverre Solberg, & Martin Otto Paul Ramacher. (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. 12(8). 3357–3399. 41 indexed citations
11.
Karl, Matthias, et al.. (2015). Modelling atmospheric oxidation of 2-aminoethanol (MEA) emitted from post-combustion capture using WRF–Chem. The Science of The Total Environment. 527-528. 185–202. 23 indexed citations
12.
Karl, Matthias, Núria Castell, David Simpson, et al.. (2014). Uncertainties in assessing the environmental impact of amine emissions from a CO 2 capture plant. Atmospheric chemistry and physics. 14(16). 8533–8557. 25 indexed citations
13.
Pebesma, Edzer, et al.. (2013). Uncertainty in exposure to air pollution. TU/e Research Portal (Eindhoven University of Technology). 3 indexed citations
14.
15.
Oftedal, Bente, Bert Brunekreef, Wenche Nystad, et al.. (2008). Residential Outdoor Air Pollution and Lung Function in Schoolchildren. Epidemiology. 19(1). 129–137. 116 indexed citations
16.
Walker, Sam-Erik, et al.. (2003). The urban air dispersion model EPISODE applied in AirQUIS2003. Technical description.. Duo Research Archive (University of Oslo). 8 indexed citations
17.
Solberg, Sverre, Christian Dye, Sam-Erik Walker, & David Simpson. (2001). Long-term measurements and model calculations of formaldehyde at rural European monitoring sites. Atmospheric Environment. 35(2). 195–207. 46 indexed citations
18.
Bartoňová, Alena, et al.. (2000). Air pollution exposure monitoring and estimation VII. Estimation of population exposure in a central European airshed. Journal of Environmental Monitoring. 2(4). 344–350. 3 indexed citations
19.
Bartoňová, Alena, Jocelyne Clench‐Aas, Frederick Gram, et al.. (1999). Air pollution exposure monitoring and estimation. Journal of Environmental Monitoring. 1(4). 337–340. 24 indexed citations
20.
Pedersen, Ulf R., et al.. (1990). Kart over atmosfærisk avsetning av svovel- og nitrogenforbindelser i Norge.. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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