Low-flow period seasonality, trends, and climate linkages across the United States
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Abstract
Low-flow period properties, including timing, magnitude, and duration, influence many key processes for water resource managers and ecosystems. We computed annual low-flow period duration and timing metrics from 1951 to 2020 for 1032 conterminous United States (CONUS) streamgages and analyzed spatial patterns, trends through time, and relationships to climate. Results show northwestern and eastern CONUS streamgages had longer and more inter-annually consistent low-flow period durations, while central CONUS periods were shorter and more variable. Low-flow periods most often occurred in summer months but start and end dates occurred later in north-central and mountainous western CONUS, which have the greatest number of low flows during cold seasons. Low-flow periods are becoming longer in southeastern and northwestern CONUS but shorter in much of the rest of CONUS. Temperature was correlated with low-flow period duration in southeastern and northwestern CONUS, and precipitation was correlated with duration everywhere, but most strongly in eastern CONUS.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Low-flow period seasonality, trends, and climate linkages across the United States |
| Series title | Hydrological Sciences Journal |
| DOI | 10.1080/02626667.2024.2369639 |
| Edition | Online First |
| Year Published | 2024 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | New England Water Science Center, Oregon Water Science Center, WMA - Earth System Processes Division, WMA - Integrated Modeling and Prediction Division, Maryland-Delaware-District of Columbia Water Science Center |
| Country | United States |
| Other Geospatial | conterminous United States |
| Google Analytic Metrics | Metrics page |