J. K. Hargreaves

3.2k total citations
126 papers, 2.4k citations indexed

About

J. K. Hargreaves is a scholar working on Astronomy and Astrophysics, Geophysics and Molecular Biology. According to data from OpenAlex, J. K. Hargreaves has authored 126 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 105 papers in Astronomy and Astrophysics, 48 papers in Geophysics and 23 papers in Molecular Biology. Recurrent topics in J. K. Hargreaves's work include Ionosphere and magnetosphere dynamics (100 papers), Solar and Space Plasma Dynamics (69 papers) and Earthquake Detection and Analysis (47 papers). J. K. Hargreaves is often cited by papers focused on Ionosphere and magnetosphere dynamics (100 papers), Solar and Space Plasma Dynamics (69 papers) and Earthquake Detection and Analysis (47 papers). J. K. Hargreaves collaborates with scholars based in United Kingdom, United States and Ghana. J. K. Hargreaves's co-authors include R. D. Hunsucker, H.J.A. Chivers, P.N. Collis, G. L. Siscoe, G. J. Bailey, H. Ranta, W. Andrew Murray, A. Ranta, B. Honary and T. Devlin and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and Physics Today.

In The Last Decade

J. K. Hargreaves

120 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. K. Hargreaves United Kingdom	25	2.3k	1.2k	573	561	316	126	2.4k
P. J. S. Williams United Kingdom	28	2.7k 1.2×	855 0.7×	560 1.0×	521 0.9×	388 1.2×	143	2.8k
A. Brekke Norway	30	2.9k 1.3×	1.3k 1.1×	491 0.9×	962 1.7×	534 1.7×	139	3.1k
C. Hanuise France	22	2.3k 1.0×	903 0.8×	931 1.6×	585 1.0×	176 0.6×	50	2.3k
R. Pellinen Finland	24	3.1k 1.4×	1.1k 1.0×	479 0.8×	1.3k 2.3×	207 0.7×	67	3.2k
R. E. Daniell United States	30	2.4k 1.1×	550 0.5×	493 0.9×	428 0.8×	473 1.5×	75	2.5k
C.‐I. Meng United States	34	4.0k 1.7×	1.3k 1.2×	399 0.7×	1.9k 3.3×	506 1.6×	129	4.1k
J. M. Retterer United States	26	2.0k 0.9×	545 0.5×	634 1.1×	370 0.7×	225 0.7×	68	2.0k
J. A. Fedder United States	31	3.5k 1.6×	790 0.7×	316 0.6×	1.6k 2.8×	257 0.8×	85	3.7k
J. P. Villain France	25	3.0k 1.3×	1.2k 1.1×	1.2k 2.1×	998 1.8×	195 0.6×	54	3.1k
T. R. Robinson United Kingdom	27	2.1k 0.9×	1.0k 0.9×	668 1.2×	497 0.9×	157 0.5×	102	2.3k

Countries citing papers authored by J. K. Hargreaves

Since Specialization

Citations

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

Fields of papers citing papers by J. K. Hargreaves

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. K. Hargreaves

This figure shows the co-authorship network connecting the top 25 collaborators of J. K. Hargreaves. A scholar is included among the top collaborators of J. K. Hargreaves 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 J. K. Hargreaves. J. K. Hargreaves is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hargreaves, J. K.. (1998). Comments on Protonospheric Content — ATS-6 Revisited. Acta Geodaetica et Geophysica Hungarica. 33(1). 129–135. 4 indexed citations

Hargreaves, J. K., et al.. (1996). A localised co-rotating auroral absorption event observed near noon using imaging riometer and EISCAT. Annales Geophysicae. 14(12). 1305–1305. 6 indexed citations

Hargreaves, J. K.. (1993). Books-Received - the Solar-Terrestrial Environment. Observatory. 115. 247. 1 indexed citations

Hargreaves, J. K.. (1992). The Solar-Terrestrial Environment. Cambridge University Press eBooks. 421 indexed citations

Nielsen, E., C. H. Barrow, J. K. Hargreaves, et al.. (1991). European riometer observations system. MPG.PuRe (Max Planck Society). 317. 49–53. 1 indexed citations

Hargreaves, J. K., H. Ranta, A. Ranta, Esa Turunen, & T. Turunen. (1987). Observations of the polar cap absorption event of February 1984 by the EISCAT incoherent scatter radar. Planetary and Space Science. 35(7). 947–958. 34 indexed citations

Collis, P.N., J. K. Hargreaves, A. Brekke, & A. Korth. (1986). Experimental determination of effective recombination rates in the disturbed high latitude lower ionosphere. Annales Geophysicae. 4. 211–217. 9 indexed citations

Hunsucker, R. D. & J. K. Hargreaves. (1986). Reinventing the wheel and other foibles. Eos. 67(37). 674–674.

Hargreaves, J. K., et al.. (1985). Statistics of auroral radio absorption in relation to prediction models. NASA STI/Recon Technical Report N. 86. 27557. 1 indexed citations

10.

Poulter, E. M. & J. K. Hargreaves. (1981). A harmonic analysis of ATS-6 electron content observations at Lancaster, U.K. during 1975-6. 37. 405–415. 6 indexed citations

11.

Hargreaves, J. K., E. M. Poulter, & R. D. Hunsucker. (1981). ATS-6 electron-content measurements from Alaska - Recovery from a storm in summer 1979. 119–140. 3 indexed citations

12.

Hargreaves, J. K. & A. Brekke. (1981). Application of the Ramfjordmoen partial reflection experiment to the study of auroral precipitation events. Journal of Atmospheric and Terrestrial Physics. 43(10). 1093–1106. 4 indexed citations

13.

Thrane, E. V., D. K. Chakrabarty, S. D. Deshpande, et al.. (1979). D region predictions. 2. 573. 1 indexed citations

14.

Hargreaves, J. K., et al.. (1976). The eastward movement of the structure of auroral radio absorption events in the morning sector.. Annales de Geophysique. 32. 401–406. 10 indexed citations

15.

Hargreaves, J. K., H.J.A. Chivers, & W. I. Axford. (1974). The development of the substorm in auroral radio absorption. 2. 79–88. 2 indexed citations

16.

Hargreaves, J. K. & K. Bullough. (1972). Mid-latitude VLF emissions and the mechanism of dayside auroral particle precipitation. Planetary and Space Science. 20(5). 803–807. 9 indexed citations

17.

Hargreaves, J. K.. (1969). Auroral absorption of HF radio waves in the ionosphere: A review of results from the first decade of riometry. Proceedings of the IEEE. 57(8). 1348–1373. 97 indexed citations

18.

Hargreaves, J. K.. (1967). Auroral motions observed with riometers: movements between stations widely separated in longitude. Journal of Atmospheric and Terrestrial Physics. 29(9). 1159–1164. 20 indexed citations

19.

Hargreaves, J. K., et al.. (1967). Studies of auroral radio absorption events at three magnetic latitudes—II. Planetary and Space Science. 15(10). 1585–1597. 18 indexed citations

20.

Hargreaves, J. K.. (1966). On the variation of auroral radio absorption with geomagnetic activity. Planetary and Space Science. 14(10). 991–1006. 35 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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