Alan H. Welch

3.5k total citations · 1 hit paper
30 papers, 2.0k citations indexed

About

Alan H. Welch is a scholar working on Geochemistry and Petrology, Environmental Engineering and Environmental Chemistry. According to data from OpenAlex, Alan H. Welch has authored 30 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Geochemistry and Petrology, 12 papers in Environmental Engineering and 11 papers in Environmental Chemistry. Recurrent topics in Alan H. Welch's work include Groundwater and Isotope Geochemistry (13 papers), Groundwater flow and contamination studies (12 papers) and Arsenic contamination and mitigation (10 papers). Alan H. Welch is often cited by papers focused on Groundwater and Isotope Geochemistry (13 papers), Groundwater flow and contamination studies (12 papers) and Arsenic contamination and mitigation (10 papers). Alan H. Welch collaborates with scholars based in United States, Bangladesh and Sweden. Alan H. Welch's co-authors include Michael S. Lico, Dennis R. Helsel, David B. Westjohn, Richard B. Wanty, J. Hughes, Kenneth G. Stollenwerk, James M. Thomas, Michael D. Dettinger, N. Ahmed and John W. Whitney and has published in prestigious journals such as Geochimica et Cosmochimica Acta, The Science of The Total Environment and Journal of Hydrology.

In The Last Decade

Alan H. Welch

29 papers receiving 1.8k 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.

Arsenic in Ground Water of the United States: Occurrence and Geochemistry

2000 701 citations Alan H. Welch, David B. Westjohn et al. Ground Water profile →

Peers

Alan H. Welch

EC

POLLU

HTM

GP

WST

Daniel J. Brabander United States

Bibhash Nath Australia

Hugo B. Nicolli Argentina

Rosa Cidu Italy

Kenneth G. Stollenwerk United States

Khandaker N. Ashfaque Bangladesh

A. B. M. Badruzzaman Bangladesh

Pham Thi Kim Trang Vietnam

Yongfeng Jia China

Christopher Boothman United Kingdom

Daniel J. Brabander United States

Alan H. Welch

1.8k ×1.2

EC

1.4k ×1.8

POLLU

1.1k ×1.6

HTM

443 ×0.9

GP

233 ×0.6

WST

Citations per year, relative to Alan H. Welch Alan H. Welch (= 1×) peers Daniel J. Brabander

Countries citing papers authored by Alan H. Welch

Since Specialization

Citations

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

Fields of papers citing papers by Alan H. Welch

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alan H. Welch. 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 Alan H. Welch. The network helps show where Alan H. Welch may publish in the future.

Co-authorship network of co-authors of Alan H. Welch

This figure shows the co-authorship network connecting the top 25 collaborators of Alan H. Welch. A scholar is included among the top collaborators of Alan H. Welch 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 Alan H. Welch. Alan H. Welch 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

1.

Stollenwerk, Kenneth G., et al.. (2008). In situ remediation of Arsenic in groundwater. Geochimica et Cosmochimica Acta Supplement. 72(12). 1 indexed citations

2.

Stollenwerk, Kenneth G., George N. Breit, Alan H. Welch, et al.. (2007). Arsenic attenuation by oxidized aquifer sediments in Bangladesh. The Science of The Total Environment. 379(2-3). 133–150. 204 indexed citations

3.

Stollenwerk, Kenneth G., George N. Breit, Alan H. Welch, et al.. (2007). Arsenic attenuation by oxidized aquifer sediments in Bangladesh. Sci Total Environ. 17 indexed citations

4.

Welch, Alan H., et al.. (2006). Arsenic in Ground Water: A Review of Current Knowledge and Relation to the CALFED Solution Area with Recommendations for Needed Research. San Francisco Estuary and Watershed Science. 4(2). 28 indexed citations

5.

Welch, Alan H. & Kenneth G. Stollenwerk. (2003). Arsenic in Ground Water. Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)). 167 indexed citations

6.

Welch, Alan H., David B. Westjohn, Dennis R. Helsel, & Richard B. Wanty. (2000). Arsenic in Ground Water of the United States: Occurrence and Geochemistry. Ground Water. 38(4). 589–604. 701 indexed citations breakdown →

7.

Welch, Alan H., Sharon A. Watkins, Dennis R. Helsel, & Michael J. Focazio. (2000). Arsenic in Ground-Water Resources of the United States. Fact sheet. 34 indexed citations

8.

Welch, Alan H.. (2000). Risk‐Based Drinking Water Standards: A Challenge for the Hydrologie Community. Ground Water. 38(4). 481–481.

9.

Welch, Alan H. & Michael S. Lico. (1998). Factors controlling As and U in shallow ground water, southern Carson Desert, Nevada. Applied Geochemistry. 13(4). 521–539. 187 indexed citations

10.

Welch, Alan H.. (1994). Ground-water quality and geochemistry in Carson and Eagle Valleys, western Nevada and eastern California. Antarctica A Keystone in a Changing World. 9 indexed citations

11.

Maurer, Douglas K., et al.. (1994). Hydrogeology and potential effects of changes in water use, Carson Desert agricultural area, Churchill County, Nevada. Antarctica A Keystone in a Changing World. 4 indexed citations

12.

Welch, Alan H., et al.. (1993). Radionuclides in ground water of the Carson River Basin, western Nevada and eastern California, U.S.A.. Applied Geochemistry. 8(5). 447–471. 20 indexed citations

13.

Thomas, James M., et al.. (1989). Geochemical evolution of ground water in Smith Creek Valley—a hydrologically closed basin in central Nevada, U.S.A.. Applied Geochemistry. 4(5). 493–510. 41 indexed citations

14.

Welch, Alan H., et al.. (1989). Ground-water-quality assessment of the Carson River basin, Nevada and California: Analysis of available water-quality data through 1987. Antarctica A Keystone in a Changing World. 10 indexed citations

15.

Welch, Alan H., Michael S. Lico, & J. Hughes. (1988). Arsenic in Ground Water of the Western United States. Ground Water. 26(3). 333–347. 352 indexed citations

16.

Welch, Alan H., et al.. (1987). Water-quality assessment of the Carson River ground-water basin, Nevada and California; project description. Antarctica A Keystone in a Changing World. 5 indexed citations

17.

Olmsted, F.H., Alan H. Welch, & S. E. Ingebritsen. (1986). Shallow subsurface temperature surveys in the basin and range province, U.S.A.—I. Review and evaluation. Geothermics. 15(3). 251–265. 3 indexed citations

18.

Lico, Michael S., Alan H. Welch, & J. Hughes. (1986). Hydrologic, lithologic, and chemical data for sediment in the shallow alluvial aquifer at two sites near Fallon, Churchill County, Nevada, 1984-85. Antarctica A Keystone in a Changing World. 5 indexed citations

19.

Welch, Alan H., et al.. (1983). Geothermal resources of the western arm of the Black Rock Desert, northwestern Nevada: Part I, geology and geophysics. Antarctica A Keystone in a Changing World. 1 indexed citations

20.

Welch, Alan H., et al.. (1979). Pore size distribution, suction and hysteresis in unsaturated groundwater flow. Journal of Hydrology. 43(1-4). 99–120. 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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