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| Type: | Resource | |
| Storage: | The size of this resource is 1.8 KB | |
| Created: | Nov 23, 2025 at 8:11 p.m. (UTC) | |
| Last updated: | Nov 24, 2025 at 2:37 p.m. (UTC) | |
| Published date: | Nov 24, 2025 at 2:37 p.m. (UTC) | |
| DOI: | 10.4211/hs.8f4e81e21cc64a18aff116f23608e8d7 | |
| Citation: | See how to cite this resource | |
| Content types: | CSV Content |
| Sharing Status: | Published |
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| Views: | 46 |
| Downloads: | 2 |
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Abstract
This dataset provides long-term estimates of the Base-Flow Index (BFI) for all HUC-8 basins in Arizona from 1980 to 2020. BFI, representing the groundwater-derived portion of streamflow, was computed at gauged sites using recursive digital filtering and then regionalized to ungauged basins through an XGBoost regression framework. Climatic and topographic variables served as primary predictors to capture spatial controls on base-flow generation across Arizona’s diverse hydroclimatic gradients. The resulting product offers consistent, basin-scale BFI estimates suitable for hydrologic assessment, groundwater–surface water interaction studies, and evaluation of streamflow-associated recharge in data-limited regions.
Subject Keywords
Coverage
Spatial
Temporal
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Related Resources
| This resource is referenced by | https://doi.org/10.1016/j.ejrh.2025.102778 |
Credits
Contributors
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
| Name | Organization | Address | Phone | Author Identifiers |
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| Abraham E Springer | Northern Arizona University |
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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