K. A. Ludwig

3.6k total citations · 1 hit paper
23 papers, 1.7k citations indexed

About

K. A. Ludwig is a scholar working on Geophysics, Artificial Intelligence and Atmospheric Science. According to data from OpenAlex, K. A. Ludwig has authored 23 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Geophysics, 5 papers in Artificial Intelligence and 4 papers in Atmospheric Science. Recurrent topics in K. A. Ludwig's work include Geology and Paleoclimatology Research (4 papers), earthquake and tectonic studies (4 papers) and Seismology and Earthquake Studies (3 papers). K. A. Ludwig is often cited by papers focused on Geology and Paleoclimatology Research (4 papers), earthquake and tectonic studies (4 papers) and Seismology and Earthquake Studies (3 papers). K. A. Ludwig collaborates with scholars based in United States, Taiwan and Switzerland. K. A. Ludwig's co-authors include Deborah S. Kelley, Gretchen L. Früh‐Green, D. A. Butterfield, Jeffrey A. Karson, Bruce K. Nelson, Richard Foster Flint, A. Parker, C. Mark Fanning, Chiara Boschi and G. Proskurowski and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Geochimica et Cosmochimica Acta.

In The Last Decade

K. A. Ludwig

20 papers receiving 1.5k citations

Hit Papers

Calculation of uncertainties of U-Pb isotope data 1980 2026 1995 2010 1980 200 400 600
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.

  1. Calculation of uncertainties of U-Pb isotope data
    1980 606 citations K. A. Ludwig Earth and Planetary Science Letters profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. A. Ludwig United States 11 1.0k 490 307 279 249 23 1.7k
Euan Nisbet United Kingdom 17 953 0.9× 279 0.6× 371 1.2× 287 1.0× 182 0.7× 28 1.8k
R. Pedersen Norway 33 2.6k 2.6× 410 0.8× 252 0.8× 607 2.2× 328 1.3× 82 3.5k
Teruaki Ishii Japan 30 2.6k 2.6× 513 1.0× 233 0.8× 375 1.3× 122 0.5× 88 3.2k
Leah E. Morgan United States 19 813 0.8× 206 0.4× 502 1.6× 702 2.5× 102 0.4× 62 1.8k
David M. Christie United States 29 2.6k 2.6× 439 0.9× 182 0.6× 459 1.6× 126 0.5× 45 3.1k
P. Fryer United States 33 3.3k 3.2× 615 1.3× 238 0.8× 471 1.7× 477 1.9× 80 3.9k
Christoph Heubeck Germany 25 819 0.8× 286 0.6× 754 2.5× 495 1.8× 174 0.7× 67 1.6k
Ivan P. Savov United Kingdom 31 2.1k 2.1× 489 1.0× 264 0.9× 619 2.2× 200 0.8× 97 2.8k
Dallas Abbott United States 24 1.7k 1.7× 372 0.8× 332 1.1× 240 0.9× 72 0.3× 67 2.1k
Peter Haines Australia 26 994 1.0× 280 0.6× 656 2.1× 586 2.1× 68 0.3× 68 1.7k

Countries citing papers authored by K. A. Ludwig

Since Specialization
Citations

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

Fields of papers citing papers by K. A. Ludwig

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. A. Ludwig

This figure shows the co-authorship network connecting the top 25 collaborators of K. A. Ludwig. A scholar is included among the top collaborators of K. A. Ludwig 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 K. A. Ludwig. K. A. Ludwig 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.
Kwong, N. Simon, Kishor Jaiswal, Nicolas Luco, Jack W. Baker, & K. A. Ludwig. (2022). Preliminary National-Scale Seismic Risk Assessment of Natural Gas Pipelines in the United States. 99–110. 1 indexed citations
2.
Kwong, N. Simon, et al.. (2021). Earthquake Risk of Gas Pipelines in the Conterminous United States and Its Sources of Uncertainty. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems Part A Civil Engineering. 8(1). 15 indexed citations
3.
Wood, Nathan, K. A. Ludwig, Jeanne M. Jones, et al.. (2019). Assessing hazards and risks at the Department of the Interior—A workshop report. U.S. Geological Survey circular. 3 indexed citations
4.
Ludwig, K. A., David W. Ramsey, Nathan Wood, et al.. (2018). Science for a risky world—A U.S. Geological Survey plan for risk research and applications. U.S. Geological Survey circular. 21 indexed citations
5.
6.
Gomberg, Joan, K. A. Ludwig, B. Bekins, et al.. (2017). Reducing risk where tectonic plates collide—U.S. Geological Survey subduction zone science plan. U.S. Geological Survey circular. 10 indexed citations
7.
Gomberg, Joan & K. A. Ludwig. (2017). Reducing risk where tectonic plates collide. Fact sheet. 3 indexed citations
8.
Ludwig, K. A., et al.. (2015). Strategic Science: New Frameworks To Bring Scientific Expertise To Environmental Disaster Response. Limnology and Oceanography Bulletin. 24(2). 41–42. 2 indexed citations
9.
Ludwig, K. A., Chuan‐Chou Shen, Deborah S. Kelley, Hai Cheng, & R. Lawrence Edwards. (2011). U–Th systematics and 230Th ages of carbonate chimneys at the Lost City Hydrothermal Field. Geochimica et Cosmochimica Acta. 75(7). 1869–1888. 66 indexed citations
10.
Brazelton, William J., K. A. Ludwig, Mitchell L. Sogin, et al.. (2010). Archaea and bacteria with surprising microdiversity show shifts in dominance over 1,000-year time scales in hydrothermal chimneys. Proceedings of the National Academy of Sciences. 107(4). 1612–1617. 142 indexed citations
11.
Ludwig, K. A., et al.. (2009). Operational forecast of flooding as a consequence of rhine dykebreaks in Baden-Württemberg.. 99. 12–16. 1 indexed citations
12.
Ludwig, K. A., et al.. (2009). U-Th isotopic systematics and ages of carbonate chimneys at the Lost City Hydrothermal Field. AGU Fall Meeting Abstracts. 2009. 2 indexed citations
13.
Kelley, Deborah S., Gretchen L. Früh‐Green, Jeffrey A. Karson, & K. A. Ludwig. (2007). The Lost City Hydrothermal Field Revisited. Oceanography. 20(4). 90–99. 29 indexed citations
14.
Ludwig, K. A., et al.. (2006). U and Th Concentration and Isotopic Composition of Hydrothermal Fluids at the Lost City Hydrothermal Field. AGUFM. 2006. 1 indexed citations
15.
Ludwig, K. A., Deborah S. Kelley, D. A. Butterfield, Bruce K. Nelson, & Gretchen L. Früh‐Green. (2006). Formation and evolution of carbonate chimneys at the Lost City Hydrothermal Field. Geochimica et Cosmochimica Acta. 70(14). 3625–3645. 197 indexed citations
16.
Ludwig, K. A., et al.. (2005). U/Th Geochronology of Carbonate Chimneys at the Lost City Hydrothermal Field. AGU Fall Meeting Abstracts. 2005. 7 indexed citations
17.
Lorenz, Philip, et al.. (2003). Regional climatic modeling with the coupled model system REMO-LARSIM. EAEJA. 6818.
18.
Früh‐Green, Gretchen L., Deborah S. Kelley, Stefano M. Bernasconi, et al.. (2003). 30,000 Years of Hydrothermal Activity at the Lost City Vent Field. Science. 301(5632). 495–498. 298 indexed citations
19.
Fanning, C. Mark, et al.. (1988). Refined Proterozoic evolution of the Gawler Craton, South Australia, through U-Pb zircon geochronology. Precambrian Research. 40-41. 363–386. 188 indexed citations
20.
Ludwig, K. A.. (1980). Calculation of uncertainties of U-Pb isotope data. Earth and Planetary Science Letters. 46(2). 212–220. 606 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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