Nils Christophersen

4.2k total citations
63 papers, 3.4k citations indexed

About

Nils Christophersen is a scholar working on Environmental Chemistry, Geochemistry and Petrology and Environmental Engineering. According to data from OpenAlex, Nils Christophersen has authored 63 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Environmental Chemistry, 23 papers in Geochemistry and Petrology and 23 papers in Environmental Engineering. Recurrent topics in Nils Christophersen's work include Soil and Water Nutrient Dynamics (25 papers), Groundwater flow and contamination studies (23 papers) and Groundwater and Isotope Geochemistry (22 papers). Nils Christophersen is often cited by papers focused on Soil and Water Nutrient Dynamics (25 papers), Groundwater flow and contamination studies (23 papers) and Groundwater and Isotope Geochemistry (22 papers). Nils Christophersen collaborates with scholars based in Norway, United Kingdom and United States. Nils Christophersen's co-authors include Richard Hooper, Hans M. Seip, Richard F. Wright, Norman E. Peters, Colin Neal, Rolf D. Vogt, Sjur Andersen, Jan Mulder, Colin Neal and Dimitris Kugiumtzis and has published in prestigious journals such as Nature, Environmental Science & Technology and The Science of The Total Environment.

In The Last Decade

Nils Christophersen

62 papers receiving 2.9k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nils Christophersen Norway 29 1.7k 1.5k 1.2k 1.1k 446 63 3.4k
Mary P. Anderson United States 33 1.8k 1.1× 519 0.3× 3.4k 2.8× 1.8k 1.6× 472 1.1× 91 4.9k
Roberto Revelli Italy 30 1.4k 0.9× 1.4k 0.9× 1.3k 1.0× 421 0.4× 592 1.3× 90 3.1k
You‐Kuan Zhang United States 27 1.6k 1.0× 539 0.4× 1.6k 1.3× 447 0.4× 357 0.8× 96 3.3k
Xu‐Sheng Wang China 36 961 0.6× 355 0.2× 1.5k 1.2× 1.2k 1.0× 324 0.7× 193 3.6k
Richard G. Niswonger United States 30 2.8k 1.7× 369 0.2× 2.4k 1.9× 902 0.8× 428 1.0× 69 4.0k
Bhavna Arora United States 24 464 0.3× 493 0.3× 1.1k 0.9× 376 0.3× 215 0.5× 86 2.1k
Philip Brunner Switzerland 35 2.6k 1.6× 388 0.3× 2.4k 1.9× 1.0k 0.9× 528 1.2× 119 4.1k
Michael G. McDonald United States 8 1.8k 1.1× 343 0.2× 3.9k 3.1× 1.9k 1.7× 174 0.4× 13 4.9k
Michael N. Fienen United States 30 1.2k 0.7× 255 0.2× 1.9k 1.5× 717 0.6× 207 0.5× 97 3.0k
Torben O. Sonnenborg Denmark 30 1.6k 1.0× 312 0.2× 1.5k 1.2× 769 0.7× 167 0.4× 103 3.2k

Countries citing papers authored by Nils Christophersen

Since Specialization
Citations

This map shows the geographic impact of Nils Christophersen'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 Nils Christophersen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nils Christophersen more than expected).

Fields of papers citing papers by Nils Christophersen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nils Christophersen. 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 Nils Christophersen. The network helps show where Nils Christophersen may publish in the future.

Co-authorship network of co-authors of Nils Christophersen

This figure shows the co-authorship network connecting the top 25 collaborators of Nils Christophersen. A scholar is included among the top collaborators of Nils Christophersen 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 Nils Christophersen. Nils Christophersen 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.
2.
Christophersen, Nils, et al.. (2007). Intrinsic Subspace Convergence in TDD MIMO Communication. IEEE Transactions on Signal Processing. 55(6). 2676–2687. 8 indexed citations
3.
Gesbert, David, et al.. (2003). Combining Space-Time Block Codes and Multiplexing in Correlated MIMO channels: An Antenna Assignment strategy. 4 indexed citations
4.
Kugiumtzis, Dimitris & Nils Christophersen. (1997). State space reconstruction : method of delays vs singular spectrum approach. Duo Research Archive (University of Oslo). 9 indexed citations
5.
Hauhs, Michael, Colin Neal, Richard Hooper, & Nils Christophersen. (1996). Summary of a workshop on ecosystem modeling: The end of an era?. The Science of The Total Environment. 183(1-2). 1–5. 14 indexed citations
6.
Seip, Hans M., et al.. (1995). Integrating field work and modelling-The Birkenes Case.. Socio-Environmental Systems Modeling. 387–415. 3 indexed citations
7.
Mulder, Jan, et al.. (1992). Dissolved organic carbon fractions in soil and stream water during variable hydrological conditions at Birkenes, southern Norway. Water Resources Research. 28(6). 1585–1596. 119 indexed citations
8.
Vogt, Rolf D., Hans M. Seip, Nils Christophersen, & Sjur Andersen. (1990). Assessment of aluminium mobilization and pathways in the birkenes catchment, southern norway. The Science of The Total Environment. 96(1-2). 139–158. 12 indexed citations
9.
Christophersen, Nils & Colin Neal. (1990). Linking Hydrological, Geochemical, and Soil Chemical Processes on the Catchment Scale: An Interplay Between Modeling and Field Work. Water Resources Research. 26(12). 3077–3086. 65 indexed citations
10.
Hooper, Richard, Nils Christophersen, & Norman E. Peters. (1990). Modelling streamwater chemistry as a mixture of soilwater end-members — An application to the Panola Mountain catchment, Georgia, U.S.A.. Journal of Hydrology. 116(1-4). 321–343. 466 indexed citations
11.
Mulder, Jan, et al.. (1990). Water flow paths and hydrochemical controls in the Birkenes Catchment as inferred from a rainstorm high in seasalts. Water Resources Research. 26(4). 611–622. 69 indexed citations
12.
Christophersen, Nils, et al.. (1990). Aluminium mobilization in soil and stream waters at three Norwegian catchments with different acid deposition and site characteristics. The Science of The Total Environment. 96(1-2). 175–188. 17 indexed citations
13.
Christophersen, Nils. (1990). Linking hydrological, geochemical, and soil chemical processes on the catchment scale; an interplay between modeling and field work. Water Resources Research. 26(12). 3077–3086. 5 indexed citations
14.
Christophersen, Nils & Colin Neal. (1989). A rational approach to the assessment of aluminium solubility controls in freshwaters. The Science of The Total Environment. 84. 91–100. 8 indexed citations
15.
Neal, Colin & Nils Christophersen. (1989). Inorganic aluminium-hydrogen ion relationships for acidified streams; the role of water mixing processes. The Science of The Total Environment. 80(2-3). 195–203. 46 indexed citations
16.
Ferrier, Robert C., James S. M. Anderson, John D. Miller, & Nils Christophersen. (1989). Changes in soil and stream hydrochemistry during periods of spring snowmelt at a pristine site in mid-Norway. Water Air & Soil Pollution. 44(3-4). 321–337. 8 indexed citations
17.
Hooper, Richard, et al.. (1988). Assessing the Birkenes Model of stream acidification using a multisignal calibration methodology. Water Resources Research. 24(8). 1308–1316. 89 indexed citations
18.
Reuss, J. O., Nils Christophersen, & Hans M. Seip. (1986). A critique of models for freshwater and soil acidification. Water Air & Soil Pollution. 30(3-4). 909–930. 72 indexed citations
19.
Christophersen, Nils, et al.. (1984). Modelling stream water chemistry with snowmelt. Philosophical transactions of the Royal Society of London. Series B, Biological sciences. 305(1124). 427–439. 48 indexed citations
20.
Christophersen, Nils, et al.. (1980). Simulation of flow patterns and ion-exchange in soil percolation experiments. Water Air & Soil Pollution. 14(1). 159–170. 7 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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