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Stream temperature, intermittency, and conductivity sensor observations at Blue Oak Ranch Reserve, 2020-2022
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| Type: | Resource | |
| Storage: | The size of this resource is 59.1 MB | |
| Created: | Apr 26, 2025 at 6:26 p.m. | |
| Last updated: | Apr 26, 2025 at 9:12 p.m. | |
| Citation: | See how to cite this resource | |
| Content types: | CSV Content |
| Sharing Status: | Discoverable (Accessible via direct link sharing) |
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Abstract
Surface water presence and absence data for "Diminishing influence of catchment properties on network-scale surface water persistence during a multi-year drought" by Giggy, Price, and Zimmer, 2025.
Stream networks display dynamic patterns of surface water wetting and drying that strongly influence ecological function and downstream water quality. While topography and subsurface properties play important roles in surface water persistence, it is unclear how sensitive non-perennial stream networks are to persistent or severe drought conditions. To address these challenges, we monitored hourly surface water presence and absence for three consecutive drought years at 31 locations across a 0.25 km2 non-perennial headwater stream network in central coastal California. We coupled these observations with landscape characteristics and weather station data to examine both physical and climatic drivers of surface water activation and persistence. We observed declining spatial variability in surface water persistence and declining correlations between persistence and physical landscape attributes with ongoing drought. Unlike prior years, flow activation events in the final study year were more closely associated with precipitation event characteristics than antecedent storage states. This may suggest shifts from storage-threshold related runoff mechanisms to intensity-threshold runoff mechanisms. These results have important implications for water availability, ecological refugia, and our ability to predict spatiotemporal changes in surface water across headwater systems under changing climate.
Subject Keywords
Coverage
Spatial
Temporal
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Content
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
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| U.S. National Science Foundation | CAREER | 2046957 |
| University of California Natural Reserve System | Mildred E. Mathias Graduate Student Research Grant - Blue Oak Ranch Reserve | |
| University of California Santa Cruz, EPS Department | Earth's Environment Fund |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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