Charles R. Ortloff

1.1k total citations
48 papers, 674 citations indexed

About

Charles R. Ortloff is a scholar working on Ecology, Evolution, Behavior and Systematics, Paleontology and Ecology. According to data from OpenAlex, Charles R. Ortloff has authored 48 papers receiving a total of 674 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Ecology, Evolution, Behavior and Systematics, 12 papers in Paleontology and 10 papers in Ecology. Recurrent topics in Charles R. Ortloff's work include Water management and technologies (15 papers), Archaeology and ancient environmental studies (12 papers) and Maritime and Coastal Archaeology (8 papers). Charles R. Ortloff is often cited by papers focused on Water management and technologies (15 papers), Archaeology and ancient environmental studies (12 papers) and Maritime and Coastal Archaeology (8 papers). Charles R. Ortloff collaborates with scholars based in United States, Egypt and China. Charles R. Ortloff's co-authors include Alan L. Kolata, Michael E. Moseley, Robert A. Feldman, Dora P. Crouch, David K. Keefer, Daniel H. Sandweiss, Ruth Shady, Mark Brenner, Michael W. Binford and John W. Janusek and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Fluid Mechanics and The Journal of the Acoustical Society of America.

In The Last Decade

Charles R. Ortloff

46 papers receiving 607 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Charles R. Ortloff United States 15 320 163 159 142 116 48 674
Norma Ratto Argentina 14 352 1.1× 159 1.0× 237 1.5× 174 1.2× 14 0.1× 80 680
Lisa Kealhofer United States 20 655 2.0× 312 1.9× 308 1.9× 375 2.6× 33 0.3× 49 1.2k
Christopher T. Fisher United States 13 369 1.2× 109 0.7× 125 0.8× 88 0.6× 9 0.1× 31 777
Dominique Rissolo United States 13 184 0.6× 110 0.7× 99 0.6× 125 0.9× 15 0.1× 38 473
Julie A. Hoggarth United States 13 374 1.2× 105 0.6× 157 1.0× 96 0.7× 9 0.1× 42 530
Kenneth B. Tankersley United States 19 627 2.0× 234 1.4× 405 2.5× 193 1.4× 10 0.1× 64 910
Fraser Sturt United Kingdom 15 292 0.9× 185 1.1× 142 0.9× 250 1.8× 9 0.1× 54 660
William H. Marquardt United States 16 309 1.0× 52 0.3× 231 1.5× 161 1.1× 12 0.1× 35 665
David R. Abbott United States 13 379 1.2× 61 0.4× 290 1.8× 86 0.6× 34 0.3× 37 621
Marcello A. Canuto United States 10 362 1.1× 111 0.7× 106 0.7× 94 0.7× 6 0.1× 22 631

Countries citing papers authored by Charles R. Ortloff

Since Specialization
Citations

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

Fields of papers citing papers by Charles R. Ortloff

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles R. Ortloff. 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 Charles R. Ortloff. The network helps show where Charles R. Ortloff may publish in the future.

Co-authorship network of co-authors of Charles R. Ortloff

This figure shows the co-authorship network connecting the top 25 collaborators of Charles R. Ortloff. A scholar is included among the top collaborators of Charles R. Ortloff 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 Charles R. Ortloff. Charles R. Ortloff 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.
2.
Ortloff, Charles R.. (2023). Supercritical Froude Number Flow through Ducts with Statistically Roughened Walls. Water. 15(15). 2849–2849. 2 indexed citations
3.
Ortloff, Charles R.. (2023). Paleohydraulics and Complexity Theory: Perspectives on Self Organization of Ancient Societies. Water. 15(11). 2071–2071. 1 indexed citations
4.
Ortloff, Charles R.. (2022). Inka Hydraulic Engineering at the Tipon Royal Compound (Peru). Water. 14(1). 102–102. 1 indexed citations
5.
Ortloff, Charles R.. (2020). Roman Hydraulic Engineering: The Pont du Gard Aqueduct and Nemausus (Nîmes) Castellum. Water. 13(1). 54–54. 2 indexed citations
6.
Ortloff, Charles R.. (2020). Hydraulic Engineering at 100 BC-AD 300 Nabataean Petra (Jordan). Water. 12(12). 3498–3498. 3 indexed citations
7.
Ortloff, Charles R.. (2018). The Pont du Garde aqueduct and castellum: Insight into Roman hydraulic engineering practice. Journal of Archaeological Science Reports. 20. 808–817. 1 indexed citations
8.
Ortloff, Charles R.. (2010). Water Engineering in the Ancient World: Archaeological and Climate Perspectives on Societies of Ancient South America, the Middle East, and South-East Asia. Medical Entomology and Zoology. 17 indexed citations
9.
Ortloff, Charles R. & Michael E. Moseley. (2009). Climate, Agricultural Strategies, and Sustainability in the Precolumbian Andes. DigitalCommons (California Polytechnic State University). 9(1). 15. 1 indexed citations
10.
Ortloff, Charles R.. (2005). The Water Supply and Distribution System of the Nabataean City of Petra (Jordan), 300 bc– ad 300. Cambridge Archaeological Journal. 15(1). 93–109. 35 indexed citations
11.
Brenner, Mark, et al.. (2002). CLIMATE AND TECHNOLOGICAL INNOVATION AT KAMINALJUYU, GUATEMALA. Ancient Mesoamerica. 13(1). 103–114. 14 indexed citations
12.
Ortloff, Charles R. & Dora P. Crouch. (2001). The Urban Water Supply and Distribution System of the Ionian City of Ephesos in the Roman Imperial Period. Journal of Archaeological Science. 28(8). 843–860. 29 indexed citations
13.
Ortloff, Charles R.. (1995). Surveying and Hydraulic Engineering of the Pre-Columbian Chimú State: ad 900–1450. Cambridge Archaeological Journal. 5(1). 55–74. 5 indexed citations
14.
Ortloff, Charles R. & Alan L. Kolata. (1993). Climate and Collapse: Agro-Ecological Perspectives on the Decline of the Tiwanaku State. Journal of Archaeological Science. 20(2). 195–221. 132 indexed citations
15.
Rao, M.A., et al.. (1993). INFLUENCE of RHEOLOGICAL PROPERTIES of FLUID and SEMISOLID FOODS ON the PERFORMANCE of A FILLER. Journal of Food Process Engineering. 16(4). 289–304. 6 indexed citations
16.
Kolata, Alan L. & Charles R. Ortloff. (1989). Thermal analysis of Tiwanaku raised field systems in the Lake Titicaca Basin of Bolivia. Journal of Archaeological Science. 16(3). 233–263. 36 indexed citations
17.
Ortloff, Charles R., Michael E. Moseley, & Robert A. Feldman. (1982). Hydraulic Engineering Aspects of the Chimu Chicama-Moche Intervalley Canal. American Antiquity. 47(3). 572–595. 47 indexed citations
18.
Ortloff, Charles R.. (1969). Hypersonic Low Density Transitional Regime Flow Over Conical Vehicles. 16. 59. 2 indexed citations
19.
Ortloff, Charles R. & John‐Paul Jones. (1968). Steady-State Flow of a Subsonic Inviscid Stream through Statistically Roughened Wall Ducts. The Journal of the Acoustical Society of America. 44(4). 897–902. 1 indexed citations
20.
Ortloff, Charles R.. (1967). Wall Temperature and Speed Ratio Effects on Free Molecule Flat Plate Flows. The Physics of Fluids. 10(2). 460–462. 4 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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Rankless by CCL
2026