2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/26/2021 | 8:30 AM - 10:30 AM | IS OUR FINGER ON THE PULSE? GLOBAL ANALYSIS REVEALS BIASES IN THE STREAMFLOW GAGE NETWORK | Virtual Platform
IS OUR FINGER ON THE PULSE? GLOBAL ANALYSIS REVEALS BIASES IN THE STREAMFLOW GAGE NETWORK
Streamflow gages are paramount for understanding the function and management of freshwater ecosystems. Globally, gages are distributed sparsely along rivers and streams, and may not capture the full hydrological, morphological, and environmental diversity of fluvial systems. Here we evaluate whether a global network of river gages (n=17,406) accurately represents the global diversity of river flow regimes, channel morphology, river size, physiographic conditions, and anthropogenic stressors. Multivariate analyses of stream reach attributes indicated that gage placement is biased toward large, perennial rivers with a high degree of human impact. We also find that gages are sparsely distributed in protected areas and in arid regions with non-perennial flow regimes. As a result, landscape diversity and anthropogenic factors that influence the global stream network are not adequately represented by the existing gage network. Furthermore, underrepresented river and stream types are those typically identified as critical to freshwater conservation efforts. This disparity impacts our ability to make accurate hydrological projections or informed conservation and water management decisions based on gage datasets and underscores the need to consider landscape heterogeneity in global gage placement.
- Data science
- Ecohydrology
- Hydroscapes
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Presenters/Authors
Corey Krabbenhoft
(), University of Minnesota, cakrabbe@gmail.com;
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George Allen
(), Texas A&M University, geoallen@tamu.edu;
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Julian Olden
(), University of Washington, olden@uw.edu;
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Peirong Lin
(), Princeton University, peironglinlin@gmail.com;
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Sarah Godsey
(), Idaho State University, godsey@isu.edu;
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Daniel Allen
(), University of Oklahoma, dcallen@ou.edu;
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Hylke Beck
(), Princeton University, hylke.beck@gmail.com;
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Amy Burgin
(), University of Kansas, burginam@ku.edu;
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Ryan Burrows
(), Australian Rivers Institute, Griffith University, ryan.burrows@unimelb.edu.au;
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Katie Costigan
(), University of Louisiana Lafayette, costigan@louisiana.edu;
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Thibault Datry
(), INRAE, France, Thibault.datry@inrae.fr;
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Amanda DelVecchia
(), Duke University, amanda.delvecchia@duke.edu ;
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Walter Dodds
(), Kansas State University, wkdodds@ksu.edu;
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Catherin Franklin
(), Texas A&M University, cafranklin@tamu.edu;
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Ken Fritz
(), US Environmental Protection Agency, Office of Research and Development, fritz.ken@epa.gov;
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Rebecca Hale
(), Idaho State University, halereb3@isu.edu;
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Nate Jones
(), University of Alabama, cnjones7@ua.edu;
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Meryl Mims
(), Virginia Tech, mims@vt.edu;
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Albert Ruhi
(), Department of Environmental Science, Policy, and Management, University of California Berkeley, albert.ruhi@berkeley.edu;
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Margaret Shanafield
(), Flinders University, margaret.shanafield@flinders.edu.au;
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Adam Ward
(), Indiana University, adamward@indiana.edu;
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Margaret Zimmer
(), University of California, Santa Cruz, margaret.zimmer@ucsc.edu;
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Samuel Zipper
(), Kansas Geological Survey, University of Kansas, samzipper@ku.edu;
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