A. J. Kopf

809 total citations
29 papers, 604 citations indexed

About

A. J. Kopf is a scholar working on Astronomy and Astrophysics, Molecular Biology and Statistical and Nonlinear Physics. According to data from OpenAlex, A. J. Kopf has authored 29 papers receiving a total of 604 indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Astronomy and Astrophysics, 6 papers in Molecular Biology and 3 papers in Statistical and Nonlinear Physics. Recurrent topics in A. J. Kopf's work include Astro and Planetary Science (27 papers), Planetary Science and Exploration (26 papers) and Space Science and Extraterrestrial Life (12 papers). A. J. Kopf is often cited by papers focused on Astro and Planetary Science (27 papers), Planetary Science and Exploration (26 papers) and Space Science and Extraterrestrial Life (12 papers). A. J. Kopf collaborates with scholars based in United States, Sweden and Czechia. A. J. Kopf's co-authors include D. A. Gurnett, D. D. Morgan, A. M. Persoon, D. L. Kirchner, J. J. Plaut, J. S. Halekas, W. S. Kŭrth, F. Duru, E. Nielsen and G. Picardi and has published in prestigious journals such as Geophysical Research Letters, Space Science Reviews and Advances in Space Research.

In The Last Decade

A. J. Kopf

27 papers receiving 598 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
A. J. Kopf United States 15 599 130 40 37 24 29 604
Beatriz Sánchez‐Cano United Kingdom 17 678 1.1× 76 0.6× 21 0.5× 9 0.2× 39 1.6× 72 695
Tristan Weber United States 17 777 1.3× 134 1.0× 24 0.6× 6 0.2× 42 1.8× 31 787
R. Noschese Italy 14 525 0.9× 55 0.4× 65 1.6× 13 0.4× 53 2.2× 41 543
D. Gordon United States 4 576 1.0× 87 0.7× 11 0.3× 10 0.3× 28 1.2× 6 586
E. M. Harnett United States 17 634 1.1× 164 1.3× 36 0.9× 9 0.2× 12 0.5× 39 640
А. М. Крымский Russia 14 759 1.3× 110 0.8× 27 0.7× 7 0.2× 32 1.3× 34 764
C. Diéval Sweden 11 307 0.5× 33 0.3× 27 0.7× 21 0.6× 15 0.6× 20 332
Robin Ramstad United States 17 771 1.3× 77 0.6× 24 0.6× 4 0.1× 41 1.7× 46 786
D. J. Pawlowski United States 15 618 1.0× 46 0.4× 53 1.3× 8 0.2× 83 3.5× 30 626
C. de Bergh France 7 347 0.6× 20 0.2× 45 1.1× 15 0.4× 44 1.8× 8 358

Countries citing papers authored by A. J. Kopf

Since Specialization
Citations

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

Fields of papers citing papers by A. J. Kopf

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. J. Kopf

This figure shows the co-authorship network connecting the top 25 collaborators of A. J. Kopf. A scholar is included among the top collaborators of A. J. Kopf 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 A. J. Kopf. A. J. Kopf 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.
Peter, Kerstin, Beatriz Sánchez‐Cano, F. Němec, et al.. (2024). The Ionosphere of Mars After 20 Years of Mars Express Contributions. Space Science Reviews. 220(4). 6 indexed citations
2.
González‐Galindo, Francisco, F. Němec, Kerstin Peter, et al.. (2021). Seasonal and Geographical Variability of the Martian Ionosphere From Mars Express Observations. Journal of Geophysical Research Planets. 126(2). 17 indexed citations
3.
Withers, Paul, et al.. (2021). The Vertical Extent of Enhanced Densities in Cusp‐Like Regions of the Ionosphere of Mars. Journal of Geophysical Research Space Physics. 126(5). 1 indexed citations
4.
5.
Girazian, Z., D. D. Morgan, A. J. Kopf, et al.. (2020). Prolonged Lifetime of the Transient Ionized Layer in the Martian Atmosphere Caused by Comet Siding Spring. Journal of Geophysical Research Planets. 125(11).
6.
Duru, F., A. C. Chamberlain, D. D. Morgan, et al.. (2020). Martian Ionopause Boundary: Coincidence With Photoelectron Boundary and Response to Internal and External Drivers. Journal of Geophysical Research Space Physics. 125(5). 16 indexed citations
7.
Sánchez‐Cano, Beatriz, M. Lester, Olivier Witasse, et al.. (2019). Mars' Ionospheric Interaction With Comet C/2013 A1 Siding Spring's Coma at Their Closest Approach as Seen by Mars Express. Journal of Geophysical Research Space Physics. 125(1). 4 indexed citations
8.
Sánchez‐Cano, Beatriz, Pierre‐Louis Blelly, M. Lester, et al.. (2019). Origin of the Extended Mars Radar Blackout of September 2017. Journal of Geophysical Research Space Physics. 124(6). 4556–4568. 28 indexed citations
9.
Piker, Chris, L. J. Granroth, J. Mukherjee, et al.. (2019). Lightweight Federated Data Networks with Das2 Tools. 4 indexed citations
10.
Girazian, Z., D. D. Morgan, F. Chu, et al.. (2019). Variations in the Ionospheric Peak Altitude at Mars in Response to Dust Storms: 13 Years of Observations From the Mars Express Radar Sounder. Journal of Geophysical Research Planets. 125(5). 24 indexed citations
11.
Fallows, K., Paul Withers, D. D. Morgan, & A. J. Kopf. (2019). Extremely High Plasma Densities in the Mars Ionosphere Associated With Cusp‐Like Magnetic Fields. Journal of Geophysical Research Space Physics. 124(7). 6029–6046. 8 indexed citations
12.
Andrews, D. J., H. J. Opgenoorth, T. B. Leyser, et al.. (2018). MARSIS Observations of Field‐Aligned Irregularities and Ducted Radio Propagation in the Martian Ionosphere. Journal of Geophysical Research Space Physics. 123(8). 6251–6263. 4 indexed citations
13.
Mendillo, M., C. Narvaez, Paul Withers, et al.. (2018). Mars Initial Reference Ionosphere (MIRI) Model: Updates and Validations Using MAVEN, MEX, and MRO Data Sets. Journal of Geophysical Research Space Physics. 123(7). 5674–5683. 14 indexed citations
14.
Harada, Yuki, D. A. Gurnett, A. J. Kopf, et al.. (2018). MARSIS Observations of the Martian Nightside Ionosphere During the September 2017 Solar Event. Geophysical Research Letters. 45(16). 7960–7967. 28 indexed citations
15.
Barabash, S., Robin Ramstad, Mats Holmström, et al.. (2018). Ions Accelerated by Sounder‐Plasma Interaction as Observed by Mars Express. Journal of Geophysical Research Space Physics. 123(11). 9802–9814. 9 indexed citations
16.
Němec, F., D. D. Morgan, A. J. Kopf, et al.. (2018). Characterizing Average Electron Densities in the Martian Dayside Upper Ionosphere. Journal of Geophysical Research Planets. 124(1). 76–93. 15 indexed citations
17.
Kopf, A. J., D. A. Gurnett, G. A. DiBraccio, D. D. Morgan, & J. S. Halekas. (2017). The transient topside layer and associated current sheet in the ionosphere of Mars. Journal of Geophysical Research Space Physics. 122(5). 5579–5590. 13 indexed citations
18.
Harada, Yuki, D. A. Gurnett, A. J. Kopf, et al.. (2017). Dynamic response of the Martian ionosphere to an interplanetary shock: Mars Express and MAVEN observations. Geophysical Research Letters. 44(18). 9116–9123. 12 indexed citations
19.
Gurnett, D. A., D. D. Morgan, A. M. Persoon, et al.. (2015). An ionized layer in the upper atmosphere of Mars caused by dust impacts from comet Siding Spring. Geophysical Research Letters. 42(12). 4745–4751. 18 indexed citations
20.
Gurnett, D. A., R. L. Huff, D. D. Morgan, et al.. (2007). An overview of radar soundings of the martian ionosphere from the Mars Express spacecraft. Advances in Space Research. 41(9). 1335–1346. 166 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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