2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/25/2021 | 8:30 AM - 10:30 AM | A COMPREHENSIVE ANDES-AMAZON HYDROLOGIC BUDGET TO SUPPORT FRESHWATER CONSERVATION PLANNING AND MANAGEMENT | Virtual Platform

A COMPREHENSIVE ANDES-AMAZON HYDROLOGIC BUDGET TO SUPPORT FRESHWATER CONSERVATION PLANNING AND MANAGEMENT

As dam construction booms in the Andean headwaters of the Amazon River, the fragmentation of Andean-Amazon streams poses increasing threats to downstream social and ecological systems. These rich systems highly depend on Andean freshwater exports and the sediment and nutrients they carry. In the face of these threats, freshwater conservation planning and management is challenging due in part to the lack of a consistent baseline (i.e., pre-dam) Andes-Amazon hydrologic budget that is reliable and functional for water managers. Responding to this practical need, we present a comprehensive baseline Andes-Amazon hydrologic budget deduced from observed and modeled streamflow data. The budget is resolved for multiple sub-basin levels and contains metrics that support planning and management (e.g., flood frequency). We also highlight the influence of glaciers and páramos on streamflow, which have minimal influence on the total discharge of the Amazon River but are important buffers to Amazon headwaters flows during dry periods. The hydrologic budget will be made available as a geodatabase and is consistent with other products (e.g., sediment budget) being developed with an interdisciplinary working group to support basin-wide freshwater conservation efforts.

Hydroscapes
Flow regime
Conservation

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Presenters/Authors

Claire Beveridge (), Florida International University, cbeverid@fiu.edu;