K. Lassen

1.9k total citations · 1 hit paper
26 papers, 1.4k citations indexed

About

K. Lassen is a scholar working on Astronomy and Astrophysics, Molecular Biology and Atmospheric Science. According to data from OpenAlex, K. Lassen has authored 26 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Astronomy and Astrophysics, 9 papers in Molecular Biology and 7 papers in Atmospheric Science. Recurrent topics in K. Lassen's work include Solar and Space Plasma Dynamics (18 papers), Ionosphere and magnetosphere dynamics (13 papers) and Geomagnetism and Paleomagnetism Studies (9 papers). K. Lassen is often cited by papers focused on Solar and Space Plasma Dynamics (18 papers), Ionosphere and magnetosphere dynamics (13 papers) and Geomagnetism and Paleomagnetism Studies (9 papers). K. Lassen collaborates with scholars based in Denmark, United States and India. K. Lassen's co-authors include E. Friis‐Christensen, C. Danielsen, Peter Thejll, D. S. Colburn, W. D. González, John M. Wilcox, J. Wilhjelm, C.‐I. Meng, J. D. Craven and S. Vennerstrøm and has published in prestigious journals such as Nature, Science and Journal of Geophysical Research Atmospheres.

In The Last Decade

K. Lassen

26 papers receiving 1.1k citations

Hit Papers

Length of the Solar Cycle: An Indicator of Solar Activity... 1991 2026 2002 2014 1991 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Length of the Solar Cycle: An Indicator of Solar Activity Closely Associated with Climate
    1991 642 citations E. Friis‐Christensen, K. Lassen profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. Lassen Denmark 15 924 484 450 436 170 26 1.4k
L. E. A. Vieira Brazil 23 962 1.0× 463 1.0× 818 1.8× 1.0k 2.3× 204 1.2× 93 2.0k
S. I. Rasool United States 20 1.0k 1.1× 88 0.2× 464 1.0× 530 1.2× 91 0.5× 66 1.7k
Robert G. Currie United States 26 763 0.8× 489 1.0× 855 1.9× 599 1.4× 468 2.8× 63 1.9k
M. C. Gallego Spain 22 734 0.8× 264 0.5× 746 1.7× 629 1.4× 299 1.8× 115 1.6k
Nelson Jorge Schuch Brazil 23 1.2k 1.3× 412 0.9× 216 0.5× 405 0.9× 156 0.9× 139 1.8k
Y.‐M. Wang United States 24 2.0k 2.2× 507 1.0× 292 0.6× 357 0.8× 128 0.8× 28 2.3k
J. A. Abreu Switzerland 12 557 0.6× 339 0.7× 228 0.5× 743 1.7× 158 0.9× 17 1.3k
Yu. A. Nagovitsyn Russia 18 945 1.0× 341 0.7× 207 0.5× 287 0.7× 324 1.9× 104 1.2k
M. Vázquez Spain 22 659 0.7× 181 0.4× 533 1.2× 530 1.2× 193 1.1× 74 1.3k
Luke Barnard United Kingdom 24 1.3k 1.4× 656 1.4× 141 0.3× 234 0.5× 187 1.1× 84 1.5k

Countries citing papers authored by K. Lassen

Since Specialization
Citations

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

Fields of papers citing papers by K. Lassen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Lassen

This figure shows the co-authorship network connecting the top 25 collaborators of K. Lassen. A scholar is included among the top collaborators of K. Lassen 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 K. Lassen. K. Lassen 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.
Thejll, Peter, et al.. (2001). The cause‐and‐effect relationship of solar cycle length and the Northern Hemisphere air surface temperature. Journal of Geophysical Research Atmospheres. 106(A8). 15635–15641. 14 indexed citations
2.
Thejll, Peter & K. Lassen. (2000). Solar forcing of the Northern hemisphere land air temperature: New data. Journal of Atmospheric and Solar-Terrestrial Physics. 62(13). 1207–1213. 53 indexed citations
3.
Lassen, K. & E. Friis‐Christensen. (2000). Reply [to “Solar cycle lengths and climate: A reference revisited”]. Journal of Geophysical Research Atmospheres. 105(A12). 27493–27495. 13 indexed citations
4.
Lassen, K.. (1998). Long-Term Variations in Solar Activity and Their Apparent Effect on the Earth's Climate. Energy & Environment. 9(6). 727–739. 3 indexed citations
5.
Friis‐Christensen, E. & K. Lassen. (1994). Global Temperature Variations and a Possible Association with Solar Activity Variations. 529. 6 indexed citations
6.
Yahnin, A. G., В. А. Сергеев, R. Pellinen, et al.. (1994). Features of steady magnetospheric convection. Journal of Geophysical Research Atmospheres. 99(A3). 4039–4051. 76 indexed citations
7.
Friis‐Christensen, E. & K. Lassen. (1994). Solar Activity and Global Temperature. International Astronomical Union Colloquium. 143. 339–347. 3 indexed citations
8.
Lassen, K. & C. Danielsen. (1989). Distribution of auroral arcs during quiet geomagnetic conditions. Journal of Geophysical Research Atmospheres. 94(A3). 2587–2594. 23 indexed citations
9.
Lassen, K., C. Danielsen, & C.‐I. Meng. (1988). Quiet-time average auroral configuration. Planetary and Space Science. 36(8). 791–799. 26 indexed citations
10.
Jørgensen, Thea Suldrup, I. S. Mikkelsen, K. Lassen, et al.. (1980). Electric fields in the dayside auroral oval. Journal of Geophysical Research Atmospheres. 85(A6). 2891–2901. 15 indexed citations
11.
Lassen, K.. (1979). The quiet‐time pattern of auroral arcs as a consequence of magnetospheric convection. Geophysical Research Letters. 6(10). 777–780. 36 indexed citations
12.
Lassen, K. & C. Danielsen. (1978). Quiet time pattern of auroral arcs for different directions of the interplanetary magnetic field in the Y‐Z plane. Journal of Geophysical Research Atmospheres. 83(A11). 5277–5284. 135 indexed citations
13.
Lassen, K. & C. Danielsen. (1978). Quiet-time pattern of auroral arcs for different directions of the interplanetary magnetic field in the Y-Z plane.. Journal of geomagnetism and geoelectricity. 30(3). 193–194. 11 indexed citations
14.
Lassen, K., J. R. Sharber, & J. D. Winningham. (1977). The development of auroral and geomagnetic substorm activity after a southward turning of the interplanetary magnetic field following several hours of magnetic calm. Journal of Geophysical Research Atmospheres. 82(32). 5031–5050. 16 indexed citations
15.
Lassen, K. & G. Weill. (1976). Precipitation of auroral particles in the central polar cap during a sudden commencement magnetic storm. Planetary and Space Science. 24(5). 487–498. 2 indexed citations
16.
Friis‐Christensen, E., K. Lassen, J. Wilhjelm, et al.. (1972). Critical component of the interplanetary magnetic field responsible for large geomagnetic effects in the polar cap. Journal of Geophysical Research Atmospheres. 77(19). 3371–3376. 121 indexed citations
17.
Lassen, K., et al.. (1972). Preliminary Report on the Effect of Selective Application of Propoxur on Indoor Surfaces in El Salvador. American Journal of Tropical Medicine and Hygiene. 21(5_Suppl). 813–818. 4 indexed citations
18.
Friis‐Christensen, E., K. Lassen, John M. Wilcox, W. D. González, & D. S. Colburn. (1971). Interplanetary Magnetic Sector Polarity from Polar Geomagnetic Field Observations. Nature Physical Science. 233(38). 48–50. 43 indexed citations
19.
Lassen, K.. (1967). Polar Cap Aurora. 453. 7 indexed citations
20.
Lassen, K.. (1959). Existence of an Inner Auroral Zone. Nature. 184(4696). 1375–1377. 22 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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