D. Hamar

627 total citations
25 papers, 463 citations indexed

About

D. Hamar is a scholar working on Astronomy and Astrophysics, Geophysics and Aerospace Engineering. According to data from OpenAlex, D. Hamar has authored 25 papers receiving a total of 463 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Astronomy and Astrophysics, 14 papers in Geophysics and 9 papers in Aerospace Engineering. Recurrent topics in D. Hamar's work include Ionosphere and magnetosphere dynamics (15 papers), Earthquake Detection and Analysis (10 papers) and GNSS positioning and interference (8 papers). D. Hamar is often cited by papers focused on Ionosphere and magnetosphere dynamics (15 papers), Earthquake Detection and Analysis (10 papers) and GNSS positioning and interference (8 papers). D. Hamar collaborates with scholars based in Hungary, India and United Kingdom. D. Hamar's co-authors include János Lichtenberger, Csaba Ferencz, Péter Steinbach, Gy. Tarcsai, Gábor Tímár, Gábor Molnár, Balázs Székely, Péter Bognár, A. J. Smith and K. H. Yearby and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, International Journal of Remote Sensing and Radio Science.

In The Last Decade

D. Hamar

25 papers receiving 414 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
D. Hamar Hungary 12 221 168 168 93 92 25 463
Gy. Tarcsai Hungary 9 178 0.8× 154 0.9× 90 0.5× 66 0.7× 80 0.9× 21 390
Péter Steinbach Hungary 15 394 1.8× 138 0.8× 258 1.5× 142 1.5× 94 1.0× 31 623
Csaba Ferencz Hungary 8 125 0.6× 73 0.4× 99 0.6× 53 0.6× 45 0.5× 22 272
H. Clénet France 14 420 1.9× 93 0.6× 100 0.6× 33 0.4× 48 0.5× 27 607
Stanisław Zięba Poland 11 184 0.8× 38 0.2× 82 0.5× 105 1.1× 62 0.7× 52 386
Nils Mueller United States 14 580 2.6× 62 0.4× 113 0.7× 84 0.9× 17 0.2× 38 772
M. F. Stewart United States 11 397 1.8× 30 0.2× 52 0.3× 265 2.8× 30 0.3× 21 532
Jyri Näränen Finland 11 121 0.5× 124 0.7× 14 0.1× 121 1.3× 26 0.3× 26 445
F. Colin France 9 301 1.4× 14 0.1× 430 2.6× 177 1.9× 49 0.5× 10 875
Jinsong Chen China 10 208 0.9× 39 0.2× 77 0.5× 74 0.8× 10 0.1× 24 332

Countries citing papers authored by D. Hamar

Since Specialization
Citations

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

Fields of papers citing papers by D. Hamar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D. Hamar

This figure shows the co-authorship network connecting the top 25 collaborators of D. Hamar. A scholar is included among the top collaborators of D. Hamar 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. Hamar. D. Hamar 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.
Lichtenberger, János, Csaba Ferencz, D. Hamar, et al.. (2011). Automatic retrieval of plasmaspheric electron densities: First results form Automatic Whistler Detector and Analyzer Network. 1–4. 1 indexed citations
2.
Ferencz, Csaba, János Lichtenberger, D. Hamar, et al.. (2010). An unusual VLF signature structure recorded by the DEMETER satellite. Journal of Geophysical Research Atmospheres. 115(A2). 3 indexed citations
3.
Ferencz, Csaba, D. Hamar, János Lichtenberger, et al.. (2009). Ducted whistlers propagating in higher‐order guided mode and recorded on board of Compass‐2 satellite by the advanced Signal Analyzer and Sampler 2. Journal of Geophysical Research Atmospheres. 114(A3). 7 indexed citations
4.
Lichtenberger, János, et al.. (2008). Automatic Whistler Detector and Analyzer system: Automatic Whistler Detector. Journal of Geophysical Research Atmospheres. 113(A12). 54 indexed citations
5.
Steinbach, Péter, János Lichtenberger, D. Hamar, et al.. (2007). The effect of subionospheric propagation on whistlers recorded by the DEMETER satellite – observation and modelling. Annales Geophysicae. 25(5). 1103–1112. 22 indexed citations
6.
Singh, Rajesh, Kalpana Singh, A. K. Singh, D. Hamar, & János Lichtenberger. (2006). Matched filtering analysis of diffused whistlers and their propagation at low latitudes. Journal of Atmospheric and Solar-Terrestrial Physics. 68(6). 710–714. 3 indexed citations
7.
Singh, Rajesh, et al.. (2004). Application of matched filtering to short whistlers recorded at low latitudes. Journal of Atmospheric and Solar-Terrestrial Physics. 66(5). 407–413. 11 indexed citations
8.
Bognár, Péter, János Lichtenberger, D. Hamar, et al.. (2004). Crop yield estimation by satellite remote sensing. International Journal of Remote Sensing. 25(20). 4113–4149. 142 indexed citations
9.
Singh, Rajesh, et al.. (2003). Observation of very low frequency emissions at Indian Antarctic station, Maitri. Pramana. 61(4). 773–778. 2 indexed citations
10.
Ferencz, Csaba, et al.. (2001). Whistler Phenomena. Astrophysics and space science library. 30 indexed citations
11.
Singh, R. P., et al.. (2000). Matched filtering-parameter estimation method and analysis of whistlers recorded at Varanasi. Pramana. 55(5-6). 685–691. 8 indexed citations
12.
Singh, Rajesh, et al.. (1999). Application of matched filtering and parameter estimation technique to low latitude whistlers. Journal of Atmospheric and Solar-Terrestrial Physics. 61(14). 1081–1092. 14 indexed citations
13.
Tarcsai, Gy., et al.. (1996). Whistler-mode propagation: results of model calculations for an inhomogeneous plasma. Journal of Atmospheric and Terrestrial Physics. 58(5). 625–640. 4 indexed citations
14.
Hamar, D., et al.. (1996). Yield estimation for corn and wheat in the Hungarian Great Plain using Landsat MSS data. International Journal of Remote Sensing. 17(9). 1689–1699. 41 indexed citations
15.
Hamar, D., et al.. (1992). Trace splitting of whistlers: A signature of fine structure or mode splitting in magnetospheric ducts?. Radio Science. 27(2). 341–346. 21 indexed citations
16.
Lichtenberger, János, et al.. (1991). Whistler doublets and hyperfine structure recorded digitally by the signal analyzer and sampler on the active satellite. Journal of Geophysical Research Atmospheres. 96(A12). 21149–21158. 15 indexed citations
17.
Hamar, D., Gy. Tarcsai, János Lichtenberger, A. J. Smith, & K. H. Yearby. (1990). Fine structure of whistlers recorded digitally at Halley, Antarctica. Journal of Atmospheric and Terrestrial Physics. 52(9). 801–810. 24 indexed citations
18.
Lichtenberger, János, D. Hamar, & L. Cserepes. (1987). Computation of whistler wave normals using a combined matched filtering and parameter estimation technique. Journal of Atmospheric and Terrestrial Physics. 49(11-12). 1075–1079. 3 indexed citations
19.
Hamar, D., et al.. (1987). Surface models including direct cross-radiation: a simple model of furrowed surfaces. International Journal of Remote Sensing. 8(3). 449–465. 5 indexed citations
20.
Hamar, D., et al.. (1982). High resolution frequency-time analysis of whistlers using digital matched filtering. I - Theory and simulation studies. Annales de Geophysique. 38. 119–128. 7 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 Gy. Tarcsai Breakdown of academic impact, for papers by Péter Steinbach Breakdown of academic impact, for papers by Csaba Ferencz Breakdown of academic impact, for papers by H. Clénet Breakdown of academic impact, for papers by Stanisław Zięba Breakdown of academic impact, for papers by Nils Mueller Breakdown of academic impact, for papers by M. F. Stewart Breakdown of academic impact, for papers by Jyri Näränen Breakdown of academic impact, for papers by F. Colin Breakdown of academic impact, for papers by Jinsong Chen
Rankless by CCL
2026