Stephen P. Opsahl

3.7k total citations
45 papers, 3.0k citations indexed

About

Stephen P. Opsahl is a scholar working on Ecology, Geochemistry and Petrology and Water Science and Technology. According to data from OpenAlex, Stephen P. Opsahl has authored 45 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Ecology, 15 papers in Geochemistry and Petrology and 15 papers in Water Science and Technology. Recurrent topics in Stephen P. Opsahl's work include Groundwater and Isotope Geochemistry (15 papers), Water Quality and Resources Studies (12 papers) and Groundwater flow and contamination studies (11 papers). Stephen P. Opsahl is often cited by papers focused on Groundwater and Isotope Geochemistry (15 papers), Water Quality and Resources Studies (12 papers) and Groundwater flow and contamination studies (11 papers). Stephen P. Opsahl collaborates with scholars based in United States, Brazil and Australia. Stephen P. Opsahl's co-authors include Ronald Benner, Rainer M. W. Amon, Richard G. Zepp, Jeffrey P. Chanton, Bopaiah A. Biddanda, Stephen W. Golladay, Alan P. Covich, MaryLynn Musgrove, Carla L. Atkinson and Bruce R. Forsberg and has published in prestigious journals such as Nature, SHILAP Revista de lepidopterología and Journal of Geophysical Research Atmospheres.

In The Last Decade

Stephen P. Opsahl

37 papers receiving 2.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Stephen P. Opsahl United States 21 1.7k 1.4k 648 646 460 45 3.0k
Kenna D. Butler United States 22 1.8k 1.1× 929 0.7× 786 1.2× 911 1.4× 395 0.9× 31 3.0k
Anssi V. Vähätalo Finland 32 1.7k 1.0× 1.2k 0.9× 628 1.0× 689 1.1× 561 1.2× 63 3.2k
Richard A. Bourbonniere Canada 31 1.0k 0.6× 1.6k 1.2× 1.2k 1.8× 716 1.1× 382 0.8× 56 3.4k
Nicholas Ward United States 25 1.7k 1.0× 1.4k 1.0× 633 1.0× 487 0.8× 784 1.7× 106 3.1k
David V. D’Amore United States 26 1.1k 0.7× 1.1k 0.8× 660 1.0× 858 1.3× 569 1.2× 64 2.8k
Lars Rahm Sweden 28 1.8k 1.1× 747 0.5× 939 1.4× 438 0.7× 404 0.9× 84 2.8k
Anne M. Kellerman United States 23 1.5k 0.9× 1.2k 0.9× 751 1.2× 573 0.9× 297 0.6× 50 3.0k
G. Cauwet France 35 2.0k 1.2× 1.1k 0.8× 662 1.0× 462 0.7× 506 1.1× 55 3.0k
Fuh‐Kwo Shiah Taiwan 33 2.0k 1.2× 1.3k 0.9× 570 0.9× 674 1.0× 684 1.5× 96 3.0k
Günther Nausch Germany 33 2.3k 1.4× 828 0.6× 884 1.4× 463 0.7× 752 1.6× 84 3.1k

Countries citing papers authored by Stephen P. Opsahl

Since Specialization
Citations

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

Fields of papers citing papers by Stephen P. Opsahl

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephen P. Opsahl. 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 Stephen P. Opsahl. The network helps show where Stephen P. Opsahl may publish in the future.

Co-authorship network of co-authors of Stephen P. Opsahl

This figure shows the co-authorship network connecting the top 25 collaborators of Stephen P. Opsahl. A scholar is included among the top collaborators of Stephen P. Opsahl 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 Stephen P. Opsahl. Stephen P. Opsahl 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.
Musgrove, MaryLynn, Bryant C. Jurgens, & Stephen P. Opsahl. (2023). Karst Groundwater Vulnerability Determined by Modeled Age and Residence Time Tracers. Geophysical Research Letters. 50(18). 11 indexed citations
2.
3.
Musgrove, MaryLynn, et al.. (2019). Timescales of water-quality change in a karst aquifer, south-central Texas. SHILAP Revista de lepidopterología. 4. 100041–100041. 14 indexed citations
4.
Musgrove, MaryLynn, et al.. (2016). Source, variability, and transformation of nitrate in a regional karst aquifer: Edwards aquifer, central Texas. The Science of The Total Environment. 568. 457–469. 71 indexed citations
5.
6.
Peterson, Richard N., William C. Burnett, Stephen P. Opsahl, et al.. (2012). Tracking suspended particle transport via radium isotopes (226Ra and 228Ra) through the Apalachicola–Chattahoochee–Flint River system. Journal of Environmental Radioactivity. 116. 65–75. 8 indexed citations
7.
Atkinson, Carla L., et al.. (2011). Suspended material availability and filtration–biodeposition processes performed by a native and invasive bivalve species in streams. Hydrobiologia. 667(1). 191–204. 53 indexed citations
8.
Golladay, Stephen W., et al.. (2010). Physicochemical habitat association of a native and a non-native crayfish in the lower Flint river, Georgia: implications for invasion success. Biological Invasions. 13(2). 499–511. 16 indexed citations
9.
Atkinson, Carla L., Stephen P. Opsahl, Alan P. Covich, Stephen W. Golladay, & L. Mike Conner. (2010). Stable isotopic signatures, tissue stoichiometry, and nutrient cycling (C and N) of native and invasive freshwater bivalves. Journal of the North American Benthological Society. 29(2). 496–505. 68 indexed citations
10.
Kirkman, L. Katherine, et al.. (2010). A research framework for identifying potential linkages between isolated wetlands and disease ecology. Ecological Research. 26(5). 875–883. 5 indexed citations
11.
Opsahl, Stephen P. & Jeffrey P. Chanton. (2006). Isotopic evidence for methane-based chemosynthesis in the Upper Floridan aquifer food web. Oecologia. 150(1). 89–96. 30 indexed citations
12.
Opsahl, Stephen P., et al.. (2006). Tracking Anthropogenic Inputs Using Caffeine, Indicator Bacteria, and Nutrients in Rural Freshwater and Urban Marine Systems. Environmental Science & Technology. 40(24). 7616–7622. 102 indexed citations
13.
Opsahl, Stephen P., et al.. (2003). Effects of the Upper Floridan Aquifer on Water Chemistry and Oxygen Metabolism in the Lower Flint River During Drought. SMARTech Repository (Georgia Institute of Technology).
14.
Miller, William L., Mary Ann Moran, Wade M. Sheldon, Richard G. Zepp, & Stephen P. Opsahl. (2002). Determination of apparent quantum yield spectra for the formation of biologically labile photoproducts. Limnology and Oceanography. 47(2). 343–352. 120 indexed citations
15.
Louchouarn, Patrick, Ronald Benner, Stephen P. Opsahl, & Rainer M. W. Amon. (2000). Abundance, Distribution, and Cycling of Dissolved Terrigenous Organic Matter in the Arctic Ocean.. Helmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut). 1 indexed citations
16.
Opsahl, Stephen P., Ronald Benner, & Rainer M. W. Amon. (1999). Major flux of terrigenous dissolved organic matter through the Arctic Ocean. Limnology and Oceanography. 44(8). 2017–2023. 250 indexed citations
17.
Opsahl, Stephen P. & Ronald Benner. (1998). Photochemical reactivity of dissolved lignin in river and ocean waters. Limnology and Oceanography. 43(6). 1297–1304. 275 indexed citations
18.
Opsahl, Stephen P. & Ronald Benner. (1997). Distribution and cycling of terrigenous dissolved organic matter in the ocean. Nature. 386(6624). 480–482. 439 indexed citations
19.
Opsahl, Stephen P. & Ronald Benner. (1995). Early diagenesis of vascular plant tissues: Lignin and cutin decomposition and biogeochemical implications. Geochimica et Cosmochimica Acta. 59(23). 4889–4904. 342 indexed citations
20.
Opsahl, Stephen P. & Ronald Benner. (1993). Decomposition of senescent blades of the seagrass Halodule wrightii in a subtropical lagoon. Marine Ecology Progress Series. 94. 191–205. 79 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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