Sydney Chapman

10.7k total citations · 3 hit papers
93 papers, 6.4k citations indexed

About

Sydney Chapman is a scholar working on Astronomy and Astrophysics, Molecular Biology and Oceanography. According to data from OpenAlex, Sydney Chapman has authored 93 papers receiving a total of 6.4k indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Astronomy and Astrophysics, 25 papers in Molecular Biology and 15 papers in Oceanography. Recurrent topics in Sydney Chapman's work include Solar and Space Plasma Dynamics (37 papers), Geomagnetism and Paleomagnetism Studies (25 papers) and Ionosphere and magnetosphere dynamics (24 papers). Sydney Chapman is often cited by papers focused on Solar and Space Plasma Dynamics (37 papers), Geomagnetism and Paleomagnetism Studies (25 papers) and Ionosphere and magnetosphere dynamics (24 papers). Sydney Chapman collaborates with scholars based in United States, United Kingdom and Slovakia. Sydney Chapman's co-authors include T. G. Cowling, David Park, Richard S. Lindzen, S.‐I. Akasofu, H. Zirin, M. J. Disney, A. P. Whitworth, A. S. Bhattal, J. A. Turner and Joseph C. Cain and has published in prestigious journals such as Nature, Science and The Journal of Chemical Physics.

In The Last Decade

Sydney Chapman

87 papers receiving 5.6k citations

Hit Papers

align trajectories

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.

The Mathematical Theory of Non-Uniform Gases

1962 2.1k citations Sydney Chapman, T. G. Cowling et al. profile →
The mathematical theory of non-uniform gases : an account of the kinetic theory of viscosity, thermal conduction, and diffusion in gases

1970 1.2k citations Sydney Chapman, T. G. Cowling University Press eBooks profile →
Atmospheric Tides

1970 725 citations Sydney Chapman et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sydney Chapman United States	29	2.8k	1.5k	1.1k	925	812	93	6.4k
K. G. Budden United Kingdom	22	2.2k 0.8×	1.3k 0.8×	938 0.9×	261 0.3×	277 0.3×	71	5.6k
Ya. B. Zel’dovich Russia	51	7.3k 2.6×	1.8k 1.2×	708 0.7×	525 0.6×	217 0.3×	308	13.5k
H. K. Moffatt United Kingdom	30	3.3k 1.2×	2.6k 1.7×	429 0.4×	2.2k 2.4×	479 0.6×	97	7.1k
K. Stewartson United Kingdom	46	910 0.3×	5.1k 3.3×	770 0.7×	1.0k 1.1×	669 0.8×	173	8.6k
Robert D. Richtmyer United States	13	707 0.2×	3.3k 2.2×	951 0.9×	114 0.1×	472 0.6×	28	7.8k
P. G. Drazin United Kingdom	29	989 0.3×	2.3k 1.5×	282 0.3×	250 0.3×	1.6k 2.0×	73	6.5k
Robert H. Kraichnan United States	54	4.3k 1.5×	9.8k 6.3×	438 0.4×	1.4k 1.5×	3.2k 4.0×	116	15.3k
F. H. Busse Germany	46	2.0k 0.7×	4.0k 2.6×	276 0.3×	2.8k 3.0×	1.0k 1.3×	195	8.6k
Kenneth G. Powell United States	40	4.3k 1.5×	2.2k 1.5×	645 0.6×	1.4k 1.5×	425 0.5×	156	6.7k
Joseph W. Chamberlain United States	32	3.8k 1.3×	265 0.2×	154 0.1×	479 0.5×	1.2k 1.5×	130	4.7k

Countries citing papers authored by Sydney Chapman

Since Specialization

Citations

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

Fields of papers citing papers by Sydney Chapman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sydney Chapman

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Turner, J. A., Sydney Chapman, A. S. Bhattal, et al.. (1995). Binary star formation: gravitational fragmentation followed by capture. Monthly Notices of the Royal Astronomical Society. 277(2). 705–726. 34 indexed citations

Whitworth, A. P., A. S. Bhattal, Sydney Chapman, M. J. Disney, & J. A. Turner. (1994). Fragmentation of shocked interstellar gas layers.. ORCA Online Research @Cardiff (Cardiff University). 290. 421–427.

Akasofu, S.‐I. & Sydney Chapman. (1972). Solar-terrestrial physics : an account of the wave and particle radiations from the quiet and the active sun, and of the consequent terrestrial phenomena. CERN Document Server (European Organization for Nuclear Research). 7 indexed citations

Chapman, Sydney, J. C. Gupta, & S. R. C. Malin. (1971). The sunspot cycle influence on the solar and lunar daily geomagnetic variations. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 324(1556). 1–15. 35 indexed citations

Chapman, Sydney & T. G. Cowling. (1970). The mathematical theory of non-uniform gases : an account of the kinetic theory of viscosity, thermal conduction, and diffusion in gases. University Press eBooks. 1153 indexed citations breakdown →

Chapman, Sydney, et al.. (1968). Solar and lunar daily geomagnatic variations at San Fernando and Greenwich in relation to the associated electric current systems. Vandenhoeck & Ruprecht eBooks. 2 indexed citations

Chapman, Sydney & P.C. Kendall. (1963). Liquid instability and energy transformation near a magnetic neutral line: a soluble non-linear hydromagnetic problem. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 271(1347). 435–448. 40 indexed citations

Akasofu, S.‐I., Joseph C. Cain, & Sydney Chapman. (1962). The magnetic field of the quiet-time proton belt. Journal of Geophysical Research Atmospheres. 67(7). 2645–2647. 45 indexed citations

Chapman, Sydney. (1961). Dynamical and Other Aspects of Cosmic Gases of Low Density. 669. 1 indexed citations

10.

Akasofu, S.‐I. & Sydney Chapman. (1961). A neutral line discharge theory of the aurora polaris. Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences. 253(1031). 359–406. 39 indexed citations

11.

Akasofu, Syun‐Ichi & Sydney Chapman. (1961). A study of magnetic storms and auroras. ScholarWorks - UA (University of Alaska System). 5 indexed citations

12.

Chapman, Sydney. (1959). Interplanetary space and the earth’s outermost atmosphere. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 253(1275). 462–481. 21 indexed citations

13.

Chapman, Sydney. (1959). Cosmic examples of heat conduction in very rare rotating or expanding gases. Annales de Geophysique. 15. 434. 1 indexed citations

14.

Chapman, Sydney. (1959). IGY. University of Michigan Press eBooks. 10 indexed citations

15.

Chapman, Sydney. (1958). Fredrik Carl Mülertz Störmer, 1874-1957. Biographical Memoirs of Fellows of the Royal Society. 257–279. 1 indexed citations

16.

Chapman, Sydney. (1958). Thermal Diffusion in Ionized Gases. Proceedings of the Physical Society. 72(3). 353–362. 33 indexed citations

17.

Chapman, Sydney & D. W. N. Stibbs. (1953). Solar Eclipses and the Aurora Borealis. Sky and Telescope. 13. 35. 2 indexed citations

18.

Chapman, Sydney. (1952). Theories of the aurora polaris. 8. 205. 9 indexed citations

19.

Chapman, Sydney & T. G. Cowling. (1951). The mathematical theory of non-uniform gases : notes added in 1951. Cambridge University Press eBooks. 2 indexed citations

20.

Chapman, Sydney, et al.. (1951). Geomagnetic and related phenomena. University Press eBooks. 9 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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