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.
Global synthesis of groundwater recharge in semiarid and arid regions
2006922 citationsBridget R. Scanlon, K. E. Keese et al.Hydrological Processesprofile →
Groundwater recharge: an overview of processes and challenges
2002712 citationsI. Simmers et al.Hydrogeology Journalprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of I. Simmers'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 I. Simmers with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites I. Simmers more than expected).
This network shows the impact of papers produced by I. Simmers. 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 I. Simmers. The network helps show where I. Simmers may publish in the future.
Co-authorship network of co-authors of I. Simmers
This figure shows the co-authorship network connecting the top 25 collaborators of I. Simmers.
A scholar is included among the top collaborators of I. Simmers 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 I. Simmers. I. Simmers is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Simmers, I.. (2016). Recharge of phreatic Aquifers in (Semi-) Arid Areas.22 indexed citations
3.
Simmers, I.. (2007). Understanding Water in a Dry Environment: IAH International Contributions to Hydrogeology 23.8 indexed citations
4.
Scanlon, Bridget R., K. E. Keese, Alan L. Flint, et al.. (2006). Global synthesis of groundwater recharge in semiarid and arid regions. Hydrological Processes. 20(15). 3335–3370.922 indexed citations breakdown →
5.
Simmers, I.. (2003). Understanding Water in a Dry Environment: Hydrological Processes in Arid and Semi-Arid Zones. A.A. Balkema eBooks.29 indexed citations
6.
Simmers, I., et al.. (2002). Groundwater recharge: an overview of processes and challenges. Hydrogeology Journal. 10(1). 5–17.712 indexed citations breakdown →
7.
Liang, Xiujuan, et al.. (2000). Estimation of groundwater recharge using artificial tritium tracing.. Data Archiving and Networked Services (DANS). 340–345.7 indexed citations
Simmers, I., et al.. (1998). Preliminary estimation of groundwater recharge at Wangtong, Hebei, P.R. China.. Data Archiving and Networked Services (DANS). 407–412.2 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.