D. A. Ryan

2.4k total citations
70 papers, 1.5k citations indexed

About

D. A. Ryan is a scholar working on Nuclear and High Energy Physics, Astronomy and Astrophysics and Ecology. According to data from OpenAlex, D. A. Ryan has authored 70 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Nuclear and High Energy Physics, 22 papers in Astronomy and Astrophysics and 20 papers in Ecology. Recurrent topics in D. A. Ryan's work include Magnetic confinement fusion research (29 papers), Ionosphere and magnetosphere dynamics (20 papers) and Geology and Paleoclimatology Research (14 papers). D. A. Ryan is often cited by papers focused on Magnetic confinement fusion research (29 papers), Ionosphere and magnetosphere dynamics (20 papers) and Geology and Paleoclimatology Research (14 papers). D. A. Ryan collaborates with scholars based in United Kingdom, Australia and Germany. D. A. Ryan's co-authors include Brendan Brooke, Lynda Radke, Graeme R. Sarson, A. Kirk, Rachel Przeslawski, Anna W. McCallum, Camille Mellin, Matthew A. McArthur, A.D. Heap and Scott Nichol and has published in prestigious journals such as The Science of The Total Environment, Applied and Environmental Microbiology and Geophysical Research Letters.

In The Last Decade

D. A. Ryan

65 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. A. Ryan United Kingdom	23	589	397	385	300	280	70	1.5k
J. L. Sanz Spain	36	246 0.4×	48 0.1×	55 0.1×	170 0.6×	114 0.4×	135	3.5k
Adrian Burd United States	28	1.0k 1.7×	2.1k 5.2×	170 0.4×	108 0.4×	201 0.7×	53	3.0k
John R. Taylor United Kingdom	34	213 0.4×	2.3k 5.7×	32 0.1×	207 0.7×	287 1.0×	120	3.4k
Carl H. Gibson United States	24	148 0.3×	881 2.2×	18 0.0×	143 0.5×	168 0.6×	63	1.9k
Christian B. Skovsted Sweden	36	141 0.2×	1.3k 3.2×	26 0.1×	430 1.4×	47 0.2×	128	3.7k
J.C. King United States	13	290 0.5×	206 0.5×	34 0.1×	140 0.5×	52 0.2×	42	2.3k
Hans van Haren Netherlands	33	812 1.4×	2.9k 7.4×	32 0.1×	687 2.3×	93 0.3×	183	3.7k
G. Rajagopalan India	20	296 0.5×	156 0.4×	18 0.0×	435 1.4×	65 0.2×	49	1.4k
N. L. Falcon Venezuela	17	76 0.1×	190 0.5×	30 0.1×	273 0.9×	90 0.3×	55	2.4k
H. Paul Johnson United States	36	392 0.7×	448 1.1×	7 0.0×	255 0.8×	126 0.5×	103	3.7k

Countries citing papers authored by D. A. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by D. A. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Ryan. 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 D. A. Ryan. The network helps show where D. A. Ryan may publish in the future.

Co-authorship network of co-authors of D. A. Ryan

This figure shows the co-authorship network connecting the top 25 collaborators of D. A. Ryan. A scholar is included among the top collaborators of D. A. Ryan 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 D. A. Ryan. D. A. Ryan 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

Thiem, Jason D., Benjamin G. Fanson, D. A. Ryan, et al.. (2025). Repeated barrier drown-out is required to facilitate long-distance migration of a potamodromous fish. Aquatic Sciences. 87(4).

Schilling, Hayden T., Andrew J. Brooks, D. A. Ryan, et al.. (2025). Multi‐Scale Influences of Climate, River Hydrology and Temperature, and Management Activities on Recruitment of a Periodic Fish Species (Golden Perch Macquaria ambigua ). Ecohydrology. 18(5).

Sun, X., et al.. (2025). A 3D helical filament surrogate model for 3D tokamak equilibria. Plasma Physics and Controlled Fusion. 67(4). 45028–45028. 1 indexed citations

Hao, Guangzhou, Yueqiang Liu, S. Munaretto, et al.. (2025). Effects of equilibrium pressure on plasma response to RMPs in a spherical tokamak. Plasma Physics and Controlled Fusion. 67(8). 85040–85040.

Suthers, Iain M., David A. Crook, Jason D. Thiem, et al.. (2025). Barrier features, fish traits, and river flows drive fragmentation of freshwater fish. Ecological Monographs. 95(2). 1 indexed citations

Piron, L., et al.. (2025). Machine learning methods for locked-mode predictions in MAST-U plasmas. Plasma Physics and Controlled Fusion. 67(4). 45007–45007.

Dreval, M., James Oliver, S. E. Sharapov, et al.. (2024). Observation of bi-directional global Alfvén eigenmodes in the MAST-U tokamak. Nuclear Fusion. 65(1). 16043–16043. 1 indexed citations

Ryan, D. A., Christopher Ham, A. Kirk, et al.. (2024). First observation of RMP ELM mitigation on MAST Upgrade. Plasma Physics and Controlled Fusion. 66(10). 105003–105003. 2 indexed citations

Piron, L., G. Cunningham, D. Terranova, et al.. (2024). Investigation of intrinsic error fields in MAST-U device. Fusion Engineering and Design. 205. 114544–114544. 2 indexed citations

10.

Berkery, J.W., S.A. Sabbagh, L. A. Kogan, et al.. (2023). Operational space and performance limiting events in the first physics campaign of MAST-U. Plasma Physics and Controlled Fusion. 65(4). 45001–45001. 7 indexed citations

11.

Gu, S., C. Paz-Soldan, Yueqiang Liu, et al.. (2022). Influence of triangularity on the plasma response to resonant magnetic perturbations. Nuclear Fusion. 62(7). 76031–76031. 8 indexed citations

12.

Willensdorfer, M., U. Plank, D. Brida, et al.. (2022). Dependence of the L–H power threshold on the alignment of external non-axisymmetric magnetic perturbations in ASDEX Upgrade. Physics of Plasmas. 29(3). 10 indexed citations

13.

Rolls, Robert J., Bruce C. Chessman, Jani Heino, et al.. (2022). Change in beta diversity of riverine fish during and after supra-seasonal drought. Landscape Ecology. 37(6). 1633–1651. 3 indexed citations

14.

Militello, F., John Omotani, Fabio Riva, et al.. (2019). Dynamics of scrape-off layer filaments in high β plasmas. Plasma Physics and Controlled Fusion. 61(10). 105013–105013. 11 indexed citations

15.

Ryan, D. A., M. Dunne, A. Kirk, et al.. (2019). Numerical survey of predicted peeling response in edge localised mode mitigated and suppressed phases on ASDEX upgrade. Plasma Physics and Controlled Fusion. 61(9). 95010–95010. 7 indexed citations

16.

Sanchis-Sanchez, L., M. García-Muñoz, A. Snicker, et al.. (2018). Characterisation of the fast-ion edge resonant transport layer induced by 3D perturbative fields in the ASDEX Upgrade tokamak through full orbit simulations. Plasma Physics and Controlled Fusion. 61(1). 14038–14038. 33 indexed citations

17.

Kirk, A., Li Li, Y. In, et al.. (2017). Summary of 21st joint EU-US transport task force workshop (Leysin, September 5–8, 2016). Max Planck Digital Library. 44 indexed citations

18.

Jordan, Phil, Alice R. Melland, Mairead Shore, et al.. (2014). The 'fine structure' of nutrient dynamics in rivers: ten years of study using high-frequency monitoring. EGUGA. 12387. 1 indexed citations

19.

Mitrovic, Simon M., et al.. (2010). Limitation of lowland riverine bacterioplankton by dissolved organic carbon and inorganic nutrients. Hydrobiologia. 652(1). 101–117. 16 indexed citations

20.

Ryan, D. A., et al.. (2008). Adjacency Branches Used To Optimize Forest Harvesting Subject to Area Restrictions on Clearfell. Forest Science. 54(4). 442–454. 6 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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