Junho Um

1.2k total citations · 1 hit paper
7 papers, 950 citations indexed

About

Junho Um is a scholar working on Geophysics, Oceanography and Ocean Engineering. According to data from OpenAlex, Junho Um has authored 7 papers receiving a total of 950 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Geophysics, 2 papers in Oceanography and 2 papers in Ocean Engineering. Recurrent topics in Junho Um's work include Seismic Waves and Analysis (4 papers), earthquake and tectonic studies (4 papers) and High-pressure geophysics and materials (3 papers). Junho Um is often cited by papers focused on Seismic Waves and Analysis (4 papers), earthquake and tectonic studies (4 papers) and High-pressure geophysics and materials (3 papers). Junho Um collaborates with scholars based in United States and Japan. Junho Um's co-authors include C. H. Thurber, Toshiro Tanimoto, Naoki Kobayashi, Kiwamu Nishida, F. A. Dahlen, Jeffrey Park and Seiji Tsuboi and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Geophysical Research Letters and Geophysical Journal International.

In The Last Decade

Junho Um

7 papers receiving 881 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

A fast algorithm for two-point seismic ray tracing

1987 741 citations Junho Um, C. H. Thurber Bulletin of the Seismological Society of America profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Junho Um United States	6	883	131	91	43	38	7	950
George L. Choy United States	26	2.0k 2.3×	94 0.7×	220 2.4×	48 1.1×	26 0.7×	51	2.1k
Ichiro Nakanishi Japan	21	1.6k 1.8×	134 1.0×	117 1.3×	12 0.3×	31 0.8×	79	1.7k
L. M. Hastie Australia	10	473 0.5×	67 0.5×	55 0.6×	31 0.7×	37 1.0×	17	527
Norman R. Paterson Netherlands	10	337 0.4×	216 1.6×	63 0.7×	26 0.6×	32 0.8×	19	420
Sven‐Erik Hjelt Finland	17	726 0.8×	266 2.0×	99 1.1×	60 1.4×	54 1.4×	35	781
Duncan Cowan Australia	9	316 0.4×	154 1.2×	103 1.1×	48 1.1×	28 0.7×	27	408
Norman S. Neidell United States	10	754 0.9×	298 2.3×	128 1.4×	26 0.6×	76 2.0×	34	876
P. Arroucau United States	15	919 1.0×	141 1.1×	137 1.5×	26 0.6×	35 0.9×	23	983
Jan Garmany United States	13	886 1.0×	75 0.6×	127 1.4×	61 1.4×	35 0.9×	22	932
G. Buselli Australia	12	452 0.5×	343 2.6×	69 0.8×	16 0.4×	28 0.7×	38	566

Countries citing papers authored by Junho Um

Since Specialization

Citations

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

Fields of papers citing papers by Junho Um

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Junho Um

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

7 of 7 papers shown

1.

Tanimoto, Toshiro & Junho Um. (1999). Cause of continuous oscillations of the Earth. Journal of Geophysical Research Atmospheres. 104(B12). 28723–28739. 61 indexed citations

2.

Tanimoto, Toshiro, Junho Um, Kiwamu Nishida, & Naoki Kobayashi. (1998). Earth's continuous oscillations observed on seismically quiet days. Geophysical Research Letters. 25(10). 1553–1556. 105 indexed citations

3.

Tsuboi, Seiji & Junho Um. (1993). Anomalous amplification of the Earth's normal modes near the epicenter due to lateral heterogeneity. Geophysical Research Letters. 20(21). 2379–2382. 1 indexed citations

4.

Um, Junho & F. A. Dahlen. (1992). Source phase and amplitude anomalies of long‐period surface waves. Geophysical Research Letters. 19(15). 1575–1578. 11 indexed citations

5.

Um, Junho & F. A. Dahlen. (1992). Normal mode multiplet coupling on an aspherical, anelastic earth. Geophysical Journal International. 111(1). 11–31. 12 indexed citations

6.

Um, Junho, F. A. Dahlen, & Jeffrey Park. (1991). Normal mode multiplet coupling along a dispersion branch. Geophysical Journal International. 106(1). 11–35. 19 indexed citations

7.

Um, Junho & C. H. Thurber. (1987). A fast algorithm for two-point seismic ray tracing. Bulletin of the Seismological Society of America. 77(3). 972–986. 741 indexed citations breakdown →

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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