H. Trefall

526 total citations
38 papers, 447 citations indexed

About

H. Trefall is a scholar working on Astronomy and Astrophysics, Geophysics and Nuclear and High Energy Physics. According to data from OpenAlex, H. Trefall has authored 38 papers receiving a total of 447 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Astronomy and Astrophysics, 17 papers in Geophysics and 7 papers in Nuclear and High Energy Physics. Recurrent topics in H. Trefall's work include Ionosphere and magnetosphere dynamics (24 papers), Solar and Space Plasma Dynamics (21 papers) and Earthquake Detection and Analysis (17 papers). H. Trefall is often cited by papers focused on Ionosphere and magnetosphere dynamics (24 papers), Solar and Space Plasma Dynamics (21 papers) and Earthquake Detection and Analysis (17 papers). H. Trefall collaborates with scholars based in Norway, Finland and Austria. H. Trefall's co-authors include G. Kremser, T. Pytte, S. Ullaland, J. Stadsnes, P. Tanskanen, Jan Magnus Bjordal, W. Riedler, J. Kangas, D. J. Williams and W. Riedler and has published in prestigious journals such as Nature, Science and Journal of Geophysical Research Atmospheres.

In The Last Decade

H. Trefall

34 papers receiving 275 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. Trefall Norway 14 417 261 95 48 36 38 447
A. M. Lenchek United States 8 390 0.9× 79 0.3× 70 0.7× 68 1.4× 33 0.9× 16 416
H. B. Liemohn United States 11 451 1.1× 220 0.8× 106 1.1× 60 1.3× 35 1.0× 28 490
J. R. Barcus United States 16 676 1.6× 325 1.2× 163 1.7× 35 0.7× 105 2.9× 47 704
T. R. Hartz Canada 14 631 1.5× 290 1.1× 212 2.2× 47 1.0× 38 1.1× 28 650
E. R. Dyer 3 546 1.3× 174 0.7× 302 3.2× 26 0.5× 19 0.5× 4 562
B. Landmark Norway 12 387 0.9× 152 0.6× 93 1.0× 34 0.7× 57 1.6× 37 424
R. C. Wentworth United States 11 435 1.0× 212 0.8× 145 1.5× 48 1.0× 61 1.7× 19 513
K. K. Harris United States 11 947 2.3× 365 1.4× 305 3.2× 50 1.0× 40 1.1× 18 961
K. Aarsnes Norway 13 491 1.2× 202 0.8× 153 1.6× 19 0.4× 52 1.4× 31 506
S. Ullaland Germany 16 531 1.3× 224 0.9× 192 2.0× 28 0.6× 18 0.5× 38 535

Countries citing papers authored by H. Trefall

Since Specialization
Citations

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

Fields of papers citing papers by H. Trefall

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H. Trefall

This figure shows the co-authorship network connecting the top 25 collaborators of H. Trefall. A scholar is included among the top collaborators of H. Trefall 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 H. Trefall. H. Trefall 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.
Trefall, H. & D. J. Williams. (1979). Time structure of postmidnight energetic electron precipitation and the limit of stable trapping. Journal of Geophysical Research Atmospheres. 84(A6). 2725–2735. 17 indexed citations
2.
Williams, D. J. & H. Trefall. (1976). Field-aligned precipitation of >30-keV electrons. Journal of Geophysical Research Atmospheres. 81(16). 2927–2930. 4 indexed citations
3.
Pytte, T., H. Trefall, G. Kremser, L. Jalonen, & W. Riedler. (1976). On the morphology of energetic (≥30keV) electron precipitation during the growth phase of magnetospheric substorms. Journal of Atmospheric and Terrestrial Physics. 38(7). 739–755. 34 indexed citations
4.
Kangas, J., P. Tanskanen, H. Trefall, et al.. (1975). On the morphology of auroral-zone X-ray events—IV. Substorm-related electron precipitation in the local morning sector. Journal of Atmospheric and Terrestrial Physics. 37(10). 1289–1303. 17 indexed citations
5.
Pytte, T., Jan Magnus Bjordal, J. Stadsnes, et al.. (1974). Large-scale auroral-zone electron precipitation event, briefly interrupted during a negative magnetic impulse. Journal of Atmospheric and Terrestrial Physics. 36(1). 29–42. 3 indexed citations
6.
Pytte, T., H. Trefall, S. Ullaland, et al.. (1974). Long-duration balloon flights from northern Scandinavia to west of Iceland in June-July 1973. 6. 67–95. 1 indexed citations
7.
Kangas, J., P. Tanskanen, H. Trefall, et al.. (1974). Energy spectral variations during SVA precipitation events on the morning and day side of the auroral zone. Journal of Atmospheric and Terrestrial Physics. 36(7). 1269–1275. 11 indexed citations
8.
Trefall, H.. (1973). Auroral Zone X-Rays. 237. 2 indexed citations
9.
Trefall, H., G. Kremser, Karsten Specht, et al.. (1973). On the morphology of auroral-zone X-ray events—III. Large-scale observations in the midnight-to-morning sector. Journal of Atmospheric and Terrestrial Physics. 35(4). 735–751. 17 indexed citations
10.
Barcus, J. R., R. R. Brown, Richard H. Karas, et al.. (1973). Balloon observations of auroral-zone X-rays in conjugate regions. Journal of Atmospheric and Terrestrial Physics. 35(3). 497–511. 7 indexed citations
11.
Bjordal, Jan Magnus, et al.. (1973). Correlation between pulsations in auroral luminosity variations and X-rays. Journal of Atmospheric and Terrestrial Physics. 35(5). 961–969. 3 indexed citations
12.
Pytte, T. & H. Trefall. (1972). Auroral-zone electron precipitation events observed before and at the onset of negative magnetic bays. Journal of Atmospheric and Terrestrial Physics. 34(2). 315–337. 30 indexed citations
13.
Trefall, H.. (1971). X-Rays Associated with Auroras. 24. 288. 3 indexed citations
14.
Trefall, H., T. Pytte, & K. Broenstad. (1970). ON THE MORPHOLOGY AND DYNAMICS OF AURORAL-ZONE ELECTRON PRECIPITATION FROM BALLOON MEASUREMENTS OF BREMSSTRAHLUNG.. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 1 indexed citations
15.
Trefall, H., et al.. (1968). East-west movements of pulsating auroral-zone X-ray events. Journal of Atmospheric and Terrestrial Physics. 30(2). 205–212. 11 indexed citations
16.
Trefall, H. & S. Ullaland. (1964). Long-Period Pulsations of Auroral-Zone X-Rays. Nature. 204(4964). 1148–1150. 3 indexed citations
17.
Trefall, H., et al.. (1959). On Systematic Errors in the Least Squares Regression Analysis, with Application to the Atmospheric Effects on the Cosmic Radiation. Tellus A Dynamic Meteorology and Oceanography. 11(4). 467–477. 6 indexed citations
18.
19.
Trefall, H.. (1955). On the Positive Temperature Effect in the Cosmic Radiation and the  -e Decay. Proceedings of the Physical Society Section A. 68(10). 893–904. 8 indexed citations
20.
Trefall, H., et al.. (1953). On the correlation between the cosmic ray intensity and the meteorological conditions. Physica. 19(1-12). 636–644. 12 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by A. M. Lenchek Breakdown of academic impact, for papers by H. B. Liemohn Breakdown of academic impact, for papers by J. R. Barcus Breakdown of academic impact, for papers by T. R. Hartz Breakdown of academic impact, for papers by E. R. Dyer Breakdown of academic impact, for papers by B. Landmark Breakdown of academic impact, for papers by R. C. Wentworth Breakdown of academic impact, for papers by K. K. Harris Breakdown of academic impact, for papers by K. Aarsnes Breakdown of academic impact, for papers by S. Ullaland
Rankless by CCL
2026