A. Johannesson

452 total citations
15 papers, 313 citations indexed

About

A. Johannesson is a scholar working on Astronomy and Astrophysics, Artificial Intelligence and Atmospheric Science. According to data from OpenAlex, A. Johannesson has authored 15 papers receiving a total of 313 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Astronomy and Astrophysics, 6 papers in Artificial Intelligence and 4 papers in Atmospheric Science. Recurrent topics in A. Johannesson's work include Solar and Space Plasma Dynamics (11 papers), Solar Radiation and Photovoltaics (5 papers) and Atmospheric Ozone and Climate (4 papers). A. Johannesson is often cited by papers focused on Solar and Space Plasma Dynamics (11 papers), Solar Radiation and Photovoltaics (5 papers) and Atmospheric Ozone and Climate (4 papers). A. Johannesson collaborates with scholars based in United States, Sweden and Switzerland. A. Johannesson's co-authors include W. Marquette, H. Zirin, J. Lean, J. W. Cook, Haimin Wang, Philip R. Goode, C. Denker, Thomas A. Bida, G. B. Scharmer and B. W. Lites and has published in prestigious journals such as The Astrophysical Journal, Geophysical Research Letters and Solar Physics.

In The Last Decade

A. Johannesson

14 papers receiving 294 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
A. Johannesson United States	8	302	100	48	38	19	15	313
B. Caccin Italy	10	234 0.8×	69 0.7×	42 0.9×	44 1.2×	15 0.8×	41	286
T. Straus Italy	10	400 1.3×	71 0.7×	25 0.5×	76 2.0×	13 0.7×	34	439
F. Giorgi Italy	12	320 1.1×	97 1.0×	46 1.0×	59 1.6×	25 1.3×	44	344
S. Criscuoli United States	14	444 1.5×	131 1.3×	58 1.2×	70 1.8×	27 1.4×	52	467
J. H. M. J. Bruls Germany	10	335 1.1×	45 0.5×	47 1.0×	42 1.1×	8 0.4×	28	359
G. Stellmacher France	11	277 0.9×	34 0.3×	28 0.6×	44 1.2×	16 0.8×	55	319
A. Ortiz Spain	11	368 1.2×	92 0.9×	23 0.5×	50 1.3×	10 0.5×	17	376
M. J. Penn United States	12	382 1.3×	81 0.8×	24 0.5×	68 1.8×	12 0.6×	35	419
B. Viticchiè Italy	9	237 0.8×	55 0.6×	83 1.7×	51 1.3×	80 4.2×	15	327
R. Nigam United States	7	248 0.8×	81 0.8×	33 0.7×	25 0.7×	8 0.4×	10	257

Countries citing papers authored by A. Johannesson

Since Specialization

Citations

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

Fields of papers citing papers by A. Johannesson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Johannesson

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

15 of 15 papers shown

Johannesson, A.. (2012). On image sensor dynamic range utilized by security cameras. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 8298. 82980W–82980W.

Denker, C., A. Johannesson, W. Marquette, et al.. (1999). Synoptic Hα Full-Disk Observations of the Sun from Big Bear Solar Observatory – I. Instrumentation, Image Processing, Data Products, and First Results. Solar Physics. 184(1). 87–102. 83 indexed citations

Solanki, S. K., et al.. (1999). Two dimensional simulations of solar granulation: description of technique and comparison with observations. Max Planck Institute for Plasma Physics. 350(3). 1018–1034. 5 indexed citations

Wang, Haimin, et al.. (1998). Study of Hα Jets on the Quiet Sun. Solar Physics. 178(1). 55–69. 11 indexed citations

Lean, J., J. W. Cook, W. Marquette, & A. Johannesson. (1998). Magnetic Sources of the Solar Irradiance Cycle. The Astrophysical Journal. 492(1). 390–401. 82 indexed citations

Johannesson, A., W. Marquette, & H. Zirin. (1998). A 10-Year Set of Ca II K-Line Filtergrams. Solar Physics. 177(1-2). 265–278. 19 indexed citations

Warren, Harry P., J. T. Mariska, J. Lean, W. Marquette, & A. Johannesson. (1996). Modeling solar extreme ultraviolet irradiance variability using emission measure distributions. Geophysical Research Letters. 23(17). 2207–2210. 22 indexed citations

Johannesson, A. & H. Zirin. (1996). The Pole‐Equator Variation of Solar Chromospheric Height. The Astrophysical Journal. 471(1). 510–520. 17 indexed citations

Keller, Christoph U. & A. Johannesson. (1995). Speckle spectrography of extended objects.. 110. 565. 2 indexed citations

10.

Johannesson, A., W. Marquette, & H. Zirin. (1995). Reproduction of the Lyman? irradiance variability from analysis of full-disk images in the CaII K-line. Solar Physics. 161(1). 201–204. 17 indexed citations

11.

Johannesson, A.. (1993). The fine scale dynamics of a sunspot penumbra. 273(2). 633–641. 1 indexed citations

12.

Linde, Per & A. Johannesson. (1991). Image Sharpening - Context-Controlled Enhancement and Deconvolution. European Southern Observatory Conference and Workshop Proceedings. 38. 173. 1 indexed citations

13.

Lundstedt, H., et al.. (1991). Magnetograph observations with the Swedish solar telescope on La Palma. Solar Physics. 132(2). 233–245. 4 indexed citations

14.

Lites, B. W., Thomas A. Bida, A. Johannesson, & G. B. Scharmer. (1991). High-resolution spectra of solar magnetic features. II - Magnetic fields of umbral brightenings. The Astrophysical Journal. 373. 683–683. 48 indexed citations

15.

Bida, Thomas A., B. W. Lites, A. Johannesson, & G. B. Scharmer. (1990). High Resolution Spectroscopy of Penumbral Fine Structure. Bulletin of the American Astronomical Society. 22. 880. 1 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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