S. Urpo

3.5k total citations
59 papers, 642 citations indexed

About

S. Urpo is a scholar working on Astronomy and Astrophysics, Molecular Biology and Oceanography. According to data from OpenAlex, S. Urpo has authored 59 papers receiving a total of 642 indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Astronomy and Astrophysics, 11 papers in Molecular Biology and 11 papers in Oceanography. Recurrent topics in S. Urpo's work include Solar and Space Plasma Dynamics (36 papers), Ionosphere and magnetosphere dynamics (19 papers) and Radio Astronomy Observations and Technology (12 papers). S. Urpo is often cited by papers focused on Solar and Space Plasma Dynamics (36 papers), Ionosphere and magnetosphere dynamics (19 papers) and Radio Astronomy Observations and Technology (12 papers). S. Urpo collaborates with scholars based in Finland, Russia and Germany. S. Urpo's co-authors include S. Pohjolainen, В. В. Зайцев, A. V. Stepanov, H. Teräsranta, V. Ruždjak, B. Vršnak, R. Brajša, E. Valtaoja, M. J. Valtonen and M. Tiuri and has published in prestigious journals such as Nature, The Astrophysical Journal and Astronomy and Astrophysics.

In The Last Decade

S. Urpo

54 papers receiving 608 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S. Urpo Finland	15	585	229	118	61	37	59	642
V. V. Zaitsev Russia	13	588 1.0×	135 0.6×	149 1.3×	29 0.5×	12 0.3×	58	625
M. Kuperus Netherlands	14	805 1.4×	149 0.7×	215 1.8×	34 0.6×	13 0.4×	41	830
G. Thejappa United States	17	727 1.2×	141 0.6×	117 1.0×	50 0.8×	20 0.5×	61	764
S. F. Smerd Australia	12	896 1.5×	122 0.5×	126 1.1×	53 0.9×	25 0.7×	27	941
A. A. Kuznetsov Russia	16	873 1.5×	110 0.5×	159 1.3×	21 0.3×	16 0.4×	54	902
В. В. Зайцев Russia	15	747 1.3×	123 0.5×	251 2.1×	29 0.5×	14 0.4×	114	789
A. L. Kiplinger United States	16	860 1.5×	119 0.5×	119 1.0×	37 0.6×	11 0.3×	60	887
J. C. Hénoux France	19	1.0k 1.8×	101 0.4×	207 1.8×	39 0.6×	8 0.2×	88	1.1k
Ch. V. Sastry India	14	430 0.7×	81 0.4×	47 0.4×	29 0.5×	12 0.3×	66	492
J. L. Bougeret France	13	542 0.9×	70 0.3×	89 0.8×	22 0.4×	9 0.2×	26	564

Countries citing papers authored by S. Urpo

Since Specialization

Citations

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

Fields of papers citing papers by S. Urpo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Urpo

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

Зинченко, И. И., V. P. Koshelets, Igor Lapkin, et al.. (2005). A Two-Frequency Two-Polarization Superconducting Receiver for Radio-Astronomical Investigations in the Millimeter Wave Band. Journal of Communications Technology and Electronics. 50(9). 1118–1122. 1 indexed citations

Khodachenko, M. L., et al.. (2005). Low-frequency modulations in the solar microwave radiation as a possible indicator of inductive interaction of coronal magnetic loops. Astronomy and Astrophysics. 433(2). 691–699. 13 indexed citations

Ciaramella, Angelo, H. D. Aller, M. F. Aller, et al.. (2004). A multifrequency analysis of radio variability of blazars. Springer Link (Chiba Institute of Technology). 51 indexed citations

Greve, A., D. A. Graham, K. Wiik, et al.. (2002). 147 GHz VLBI observations: Detection of 3C 273 and 3C 279 on the 3100 km baseline Metsähovi – Pico Veleta. Astronomy and Astrophysics. 390(3). L19–L22. 5 indexed citations

Urpo, S., et al.. (2001). Millimeter-radio, SOHO/EIT 171 Å features and the polar faculae in the polar zones of the Sun. Astronomy and Astrophysics. 366(2). 676–685. 22 indexed citations

Teräsranta, H., S. Urpo, S. Wirén, & M. J. Valtonen. (2001). Search for new flat-spectrum radio sources. Astronomy and Astrophysics. 368(2). 431–439. 9 indexed citations

Tuovinen, J., Pekka Kangaslahti, N. Hughes, et al.. (2000). Development of 70 GHz receivers for the planck LFI. 37(3). 181–187. 10 indexed citations

Зайцев, В. В., A. V. Stepanov, S. Urpo, & S. Pohjolainen. (1998). LRC-circuit analog of current-carrying magnetic loop: Diagnostics of electric parameters. Computers & Electrical Engineering. 337(3). 887–896. 39 indexed citations

Stepanov, A. V., J. Hildebrandt, A. Krüger, S. Urpo, & В. В. Зайцев. (1996). Spectra of Coronal Millimeter-Wave Sources: Thermal and Nonthermal Emission. ASPC. 93. 400. 1 indexed citations

10.

Brajša, R., et al.. (1994). Solar Centre-to-Limb Functions in Optical and Radio Wavelength Ranges. 18(1). 9. 3 indexed citations

11.

Kalenskiĭ, S. V., et al.. (1994). Observations of methanol masers at 95 GHz. Astronomy & Astrophysics Supplement Series. 103(1). 129–134. 2 indexed citations

12.

Brajša, R., B. Vršnak, V. Ruždjak, et al.. (1992). Giant Cells on the Sun Revealed by Low Temperature Microwave Regions. 16(1). 1. 1 indexed citations

13.

Brajša, R., B. Vršnak, V. Ruždjak, et al.. (1992). Variations of Solar Global Rotation During the Polarity Reversal. 16(1). 13. 1 indexed citations

14.

Pohjolainen, S., S. Urpo, H. Teräsranta, et al.. (1991). Intensity Variations and Short Time Evolution of Solar Microwave Low Temperature Regions. 15(1). 21. 1 indexed citations

15.

Urpo, S., et al.. (1989). Relationship of solar coronal millimetre wave sources to bursts in the centimetre range. Astronomische Nachrichten. 310(6). 423–429. 4 indexed citations

16.

Salonen, E., H. Teräsranta, S. Urpo, et al.. (1987). Five years monitoring of extragalactic radio sources. I. Observations at 12,22 and 37 GHz.. 70. 409–435. 1 indexed citations

17.

Urpo, S., et al.. (1987). S-component model computations applied to mean mm-wave measurements. Solar Physics. 112(1). 119–131. 7 indexed citations

18.

Urpo, S.. (1982). Observing methods for the millimeter wave radio telescope at the Metsaehovi Radio Research Station and observations of the Sun and extragalactic sources. PhDT. 2 indexed citations

19.

Nesterov, N. S., et al.. (1981). Observations of radio sources with the RT-22 at CAO and the RT-14 at RHUT in the millimeter wavelength range. 64. 99. 1 indexed citations

20.

Urpo, S.. (1975). The precision radio telescope of Helsinki University of Technology. NASA STI/Recon Technical Report N. 76. 13990. 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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