John M. Zachara

30.8k total citations · 7 hit papers
265 papers, 23.3k citations indexed

About

John M. Zachara is a scholar working on Environmental Engineering, Inorganic Chemistry and Geochemistry and Petrology. According to data from OpenAlex, John M. Zachara has authored 265 papers receiving a total of 23.3k indexed citations (citations by other indexed papers that have themselves been cited), including 127 papers in Environmental Engineering, 110 papers in Inorganic Chemistry and 59 papers in Geochemistry and Petrology. Recurrent topics in John M. Zachara's work include Radioactive element chemistry and processing (110 papers), Groundwater flow and contamination studies (71 papers) and Microbial Fuel Cells and Bioremediation (55 papers). John M. Zachara is often cited by papers focused on Radioactive element chemistry and processing (110 papers), Groundwater flow and contamination studies (71 papers) and Microbial Fuel Cells and Bioremediation (55 papers). John M. Zachara collaborates with scholars based in United States, United Kingdom and China. John M. Zachara's co-authors include James K. Fredrickson, Chongxuan Liu, Steven C. Smith, John F. McCarthy, Liang Shi, David W. Kennedy, Charles T. Resch, Eric Roden, James P. McKinley and Zhe-Ming Wang and has published in prestigious journals such as Science, Chemical Reviews and Proceedings of the National Academy of Sciences.

In The Last Decade

John M. Zachara

262 papers receiving 22.4k citations

Hit Papers

Subsurface transport of contaminants 1989 2026 2001 2013 1989 1998 1998 1996 2007 250 500 750
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. Subsurface transport of contaminants
    1989 947 citations John M. Zachara et al. profile →
  2. Metal Oxide Surfaces and Their Interactions with Aqueous Solutions and Microbial Organisms
    1998 902 citations John M. Zachara et al. profile →
  3. Biogenic iron mineralization accompanying the dissimilatory reduction of hydrous ferric oxide by a groundwater bacterium
    1998 676 citations James K. Fredrickson, John M. Zachara et al. profile →
  4. Microbial Reduction of Crystalline Iron(III) Oxides:  Influence of Oxide Surface Area and Potential for Cell Growth
    1996 656 citations John M. Zachara et al. profile →
  5. Respiration of metal (hydr)oxides by Shewanella and Geobacter: a key role for multihaem c‐type cytochromes
    2007 540 citations Liang Shi, John M. Zachara et al. profile →
  6. Environmental chemistry of chromium
    1989 489 citations John M. Zachara et al. profile →
  7. Influence of mineral-bound humic substances on the sorption of hydrophobic organic compounds
    1990 382 citations Ellyn M. Murphy, John M. Zachara et al. profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John M. Zachara United States 86 8.7k 7.0k 4.5k 4.3k 3.3k 265 23.3k
Garrison Sposito United States 90 5.1k 0.6× 3.4k 0.5× 3.7k 0.8× 4.9k 1.1× 3.4k 1.0× 416 27.4k
Andreas Kappler Germany 81 6.8k 0.8× 3.1k 0.4× 7.8k 1.7× 7.5k 1.7× 3.7k 1.1× 438 26.7k
James K. Fredrickson United States 69 6.9k 0.8× 2.5k 0.4× 3.0k 0.7× 2.3k 0.5× 1.9k 0.6× 151 16.7k
Jonathan R. Lloyd United Kingdom 65 3.3k 0.4× 3.9k 0.6× 4.2k 0.9× 2.4k 0.6× 1.1k 0.3× 322 14.5k
Kevin M. Rosso United States 71 3.8k 0.4× 2.6k 0.4× 2.8k 0.6× 1.3k 0.3× 5.8k 1.7× 445 19.2k
Hailiang Dong China 70 3.5k 0.4× 1.8k 0.3× 4.1k 0.9× 2.3k 0.5× 1.9k 0.6× 402 17.4k
Donald L. Sparks United States 91 1.9k 0.2× 3.5k 0.5× 10.2k 2.3× 4.7k 1.1× 5.8k 1.8× 348 34.0k
Werner Stumm Switzerland 69 2.4k 0.3× 2.3k 0.3× 6.3k 1.4× 3.6k 0.8× 3.8k 1.1× 168 20.1k
Laurent Charlet France 72 1.9k 0.2× 2.9k 0.4× 5.6k 1.2× 2.5k 0.6× 2.5k 0.8× 245 16.9k
John Bargar United States 64 1.5k 0.2× 6.5k 0.9× 2.2k 0.5× 5.3k 1.2× 4.0k 1.2× 240 15.7k

Countries citing papers authored by John M. Zachara

Since Specialization
Citations

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

Fields of papers citing papers by John M. Zachara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John M. Zachara. 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 John M. Zachara. The network helps show where John M. Zachara may publish in the future.

Co-authorship network of co-authors of John M. Zachara

This figure shows the co-authorship network connecting the top 25 collaborators of John M. Zachara. A scholar is included among the top collaborators of John M. Zachara 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 John M. Zachara. John M. Zachara 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.
Chen, Kewei, Xingyuan Chen, Xuehang Song, et al.. (2022). Using Ensemble Data Assimilation to Estimate Transient Hydrologic Exchange Flow Under Highly Dynamic Flow Conditions. Water Resources Research. 58(5). 19 indexed citations
2.
Song, Xuehang, Xingyuan Chen, John M. Zachara, et al.. (2020). River Dynamics Control Transit Time Distributions and Biogeochemical Reactions in a Dam‐Regulated River Corridor. Water Resources Research. 56(9). 16 indexed citations
3.
Shuai, Pin, Xingyuan Chen, Xuehang Song, et al.. (2019). Dam Operations and Subsurface Hydrogeology Control Dynamics of Hydrologic Exchange Flows in a Regulated River Reach. Water Resources Research. 55(4). 2593–2612. 41 indexed citations
4.
Song, Xuehang, Xingyuan Chen, James Stegen, et al.. (2018). Drought Conditions Maximize the Impact of High‐Frequency Flow Variations on Thermal Regimes and Biogeochemical Function in the Hyporheic Zone. Water Resources Research. 54(10). 7361–7382. 59 indexed citations
5.
Zhou, Tian, Jie Bao, Maoyi Huang, et al.. (2018). Riverbed Hydrologic Exchange Dynamics in a Large Regulated River Reach. Water Resources Research. 54(4). 2715–2730. 19 indexed citations
6.
Bisht, Gautam, Maoyi Huang, Tian Zhou, et al.. (2017). Coupling a three-dimensional subsurface flow and transport model with a land surface model to simulate stream–aquifer–land interactions (CP v1.0). Geoscientific model development. 10(12). 4539–4562. 31 indexed citations
7.
Bisht, Gautam, Maoyi Huang, Tian Zhou, et al.. (2017). Coupling a three-dimensional subsurface flow and transport model with a land surface model to simulate stream-aquifer-land interactions (PFLOTRAN_CLM v1.0). OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 3 indexed citations
8.
Dai, Heng, Xingyuan Chen, Ming Ye, Xuehang Song, & John M. Zachara. (2017). A geostatistics‐informed hierarchical sensitivity analysis method for complex groundwater flow and transport modeling. Water Resources Research. 53(5). 4327–4343. 36 indexed citations
9.
Liu, Ying, Liang Shi, John M. Zachara, et al.. (2015). Dynamic Kinetics of Nitrogen Cycle in Groundwater-Surface Water Interaction Zone at Hanford Site. 2015 AGU Fall Meeting. 2015. 1 indexed citations
10.
Johnson, Timothy J., Roelof Versteeg, Mark Rockhold, et al.. (2012). Characterization of a contaminated wellfield using 3D electrical resistivity tomography implemented with geostatistical, discontinuous boundary, and known conductivity constraints. Geophysics. 77(6). EN85–EN96. 37 indexed citations
11.
Clarke, Thomas A., Marcus J. Edwards, Andrew J. Gates, et al.. (2011). Structure of a bacterial cell surface decaheme electron conduit. Proceedings of the National Academy of Sciences. 108(23). 9384–9389. 272 indexed citations
12.
Hahn, Mathew, Yi Liu, Mark Rockhold, et al.. (2010). Bayesian approach for three-dimensional aquifer characterization at the Hanford 300 Area. Hydrology and earth system sciences. 14(10). 1989–2001. 33 indexed citations
13.
Vermeul, Vincent R., et al.. (2010). River Induced Wellbore Flow Dynamics in Long-Screen Wells and their Impact on Aqueous Sampling Results. AGUFM. 2010. 2 indexed citations
14.
Hartshorne, Robert S., Catherine L. Reardon, Daniel E. Ross, et al.. (2009). Characterization of an electron conduit between bacteria and the extracellular environment. Proceedings of the National Academy of Sciences. 106(52). 22169–22174. 372 indexed citations
15.
Wang, Zhe-Ming, Chongxuan Liu, John M. Zachara, et al.. (2009). An in situ laser fluorescence column profiler for monitoring nanoporous particle transport in porous media. Geochimica et Cosmochimica Acta Supplement. 73. 1 indexed citations
16.
Ilton, Eugene S., Nikolla Qafoku, Chongxuan Liu, Dean A. Moore, & John M. Zachara. (2008). Advective Removal of Intraparticle\nUranium from Contaminated Vadose\nZone Sediments, Hanford, U.S.. Insecta mundi. 24 indexed citations
17.
Plymale, Andrew E., et al.. (2005). Biogeochemical redox transformations of technetium-99 in Hanford and Oak Ridge sediments. Geochimica et Cosmochimica Acta Supplement. 69(10). 1 indexed citations
18.
Catalano, Jeffrey G., et al.. (2002). X-ray Spectroscopic Investigation of the Distribution and Speciation of Uranium in Contaminated Sediments From the DOE's Hanford Site. AGU Fall Meeting Abstracts. 2002. 1 indexed citations
19.
Liu, Chongxuan, et al.. (2001). Kinetic Analysis of the Bacterial\nReduction of Goethite. Insecta mundi. 177 indexed citations
20.
Murphy, Ellyn M., John M. Zachara, & S. C. Smith. (1990). Influence of mineral bound humic acids on the sorption of hydrophobic organic compounds. 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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