Countries citing papers authored by Robert M. Ragan
Since
Specialization
Citations
This map shows the geographic impact of Robert M. Ragan'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 Robert M. Ragan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert M. Ragan more than expected).
This network shows the impact of papers produced by Robert M. Ragan. 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 Robert M. Ragan. The network helps show where Robert M. Ragan may publish in the future.
Co-authorship network of co-authors of Robert M. Ragan
This figure shows the co-authorship network connecting the top 25 collaborators of Robert M. Ragan.
A scholar is included among the top collaborators of Robert M. Ragan 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 Robert M. Ragan. Robert M. Ragan is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
McCuen, Richard H., Peggy A. Johnson, & Robert M. Ragan. (2002). Highway Hydrology: Hydraulic Design Series Number 2, Second Edition.3 indexed citations
3.
McCuen, Richard H., Peggy A. Johnson, & Robert M. Ragan. (1996). HIGHWAY HYDROLOGY: HYDRAULIC DESIGN SERIES NO. 2.21 indexed citations
4.
Ragan, Robert M., et al.. (1993). An Operational GIS to Support State-Wide Hydrologic and Nonpoint Pollution Modeling. 551–556.3 indexed citations
5.
Ragan, Robert M., et al.. (1991). Data Acquisition for Hydrologic GIS. Hydraulic Engineering. 876–881.1 indexed citations
6.
Ragan, Robert M., et al.. (1991). A GIS Based Geomorphic Approach for the Digital Computation of Time-Area Curves. 287–296.5 indexed citations
7.
Ragan, Robert M., et al.. (1991). Automated Estimation of Hydrologic Parameters. 278–286.2 indexed citations
8.
Ragan, Robert M., et al.. (1990). HYDROLOGIC GEOGRAPHIC INFORMATION SYSTEM. Transportation Research Record Journal of the Transportation Research Board.1 indexed citations
Ragan, Robert M. & E. J. White. (1985). The Microcomputer as an Intelligent Workstation in Large Scale Hydrologic Modeling. 504–509.2 indexed citations
Ragan, Robert M., et al.. (1980). A Data Base System for Real Time Hydrologic Modeling. 33–43.1 indexed citations
13.
Ragan, Robert M. & V. V. Salomonson. (1978). The definition of hydrologic model parameters using remote sensing techniques. NASA Technical Reports Server (NASA).1 indexed citations
14.
Whipple, William, et al.. (1978). Characterization of urban runoff. Water Resources Research. 14(2). 370–372.19 indexed citations
15.
Ragan, Robert M.. (1977). Utilization of remote sensing observations in hydrologic models. NASA Technical Reports Server (NASA).2 indexed citations
16.
Jackson, T. J. & Robert M. Ragan. (1975). BAYESIAN DECISION THEORY AND REMOTE SENSING. Photogrammetric Engineering & Remote Sensing. 41(9).2 indexed citations
Jackson, T., Robert M. Ragan, & Richard H. McCuen. (1975). Land use classification for hydrologic models using interactive machine classification of LANDSAT data.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.