2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/25/2021 | 2:00 PM - 3:30 PM | THE MUSIC OF RIVERS: HOW THE MATHEMATICS OF WAVES REVEALS GLOBAL DRIVERS OF STREAMFLOW REGIME | Virtual Platform
THE MUSIC OF RIVERS: HOW THE MATHEMATICS OF WAVES REVEALS GLOBAL DRIVERS OF STREAMFLOW REGIME
The amount of water flowing through streams changes through time. While seemingly banal, this phenomenon controls aquatic habitat, biogeochemical flux, and societal freshwater availability. Not only are the factors driving temporal changes in streamflow still uncertain, there is not even agreement about how to describe streamflow regime, with hundreds of metrics proposed and used by managers and researchers in hydrology and ecology. Here, we show that the mathematics of waves, including concepts of frequency, amplitude, phase, and waveform, are adept at describing most of the variance in streamflow regime in a comprehensive, concise, and organized way. We focus on the concept of frequency, and demonstrate that just as the complex sound of a symphony can be decomposed into a collection of individual frequencies played together, the complex dynamics of a hydrograph can be decomposed into discrete frequencies. We find that many of the flow metrics currently available in the scientific literature relate to these frequencies. Furthermore we show how various weather and geographical features influencing hydraulic connectivity control annual and sub-annual streamflow dynamics, and how climatic features influencing water balance control multi-year dynamics in streamflow regime on a global scale.
- Connectivity
- Ecohydrology
- Big data
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Presenters/Authors
Brian Brown
(), Brigham Young University, Provo, bcbrown365@gmail.com;
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Aimee Fullerton
(), Northwest Fisheries Science Center, NOAA, aimee.fullerton@noaa.gov;
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Darin Kopp
(), University of Oklahoma, darinkopp@gmail.com;
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Flavia Tromboni
(), University of Nevada, Reno, ftromboni@unr.edu;
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Arial Shogren
(), Department of Earth and Environmental Sciences, Michigan State University, shogrena@msu.edu;
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Jeremy Jones
(), University of Alaska Fairbanks, jbjonesjr@alaska.edu;
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Lenka Kuglerova
(), Swedish University of Agricultural Sciences, lenka.kuglerova@gmail.com;
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Christopher Sergeant
(), University of Montana, Flathead Lake Biological Station, christopher_sergeant@nps.gov;
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Angus Webb
(), The University of Melbourne, angus.webb@unimelb.edu.au;
Dr Angus Webb is a Senior Lecturer in Environmental Hydrology and Water Resources at the University of Melbourne, Australia. He originally trained as a marine ecologist before moving into the study and restoration of large-scale environmental problems in freshwater systems. Much of his research centers on improving the use of the existing knowledge and data for such problems. To this end he has developed innovative approaches to synthesizing information from the literature, eliciting knowledge from experts, and analyzing large-scale data sets. He is heavily involved in the monitoring and evaluation of ecological outcomes from the Murray-Darling Basin Plan environmental watering, leading the program for the Goulburn River, Victoria, and advising on data analysis at the basin scale. Angus is currently a co-editing a major new text book on environmental flows science and management. He was awarded the 2013 prize for Building Knowledge in Waterway Management by the River Basin Management Society, and the 2012 Australian Society for Limnology Early Career Achievement Award.
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Claire Ruffing
(), University of British Columbia, ruffing.cathcart@ubc.ca;
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Jay Zarnetske
(), Department of Earth and Environmental Sciences, Michigan State University, jpz@msu.edu;
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Matthew Heaton
(), Brigham Young University, Department of Statistics, mheaton@stat.byu.edu;
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Lillian McGill
(), University of Washington , lmcgill@uw.edu;
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Benjamin Abbott
(), Brigham Young University, Department of Plant and Wildlife Sciences, benabbott@byu.edu;
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