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Historical Operation Data of 256 Reservoirs in Contiguous United States


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Storage: The size of this resource is 218.0 MB
Created: Jan 27, 2025 at 5:55 p.m. (UTC)
Last updated: Mar 30, 2026 at 1:14 p.m. (UTC) (Metadata update)
Published date: Mar 30, 2026 at 1:14 p.m. (UTC)
DOI: 10.4211/hs.092720588e2e4524bf2674235ff69d81
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Content types: CSV Content 
Sharing Status: Published
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Abstract

Reservoir operations face persistent challenges due to increasing water demand, more frequent extreme events, and stricter environmental requirements. Historical operation records are crucial to investigating real-world reservoir operations, which integrate prescribed operation rules, empirical knowledge of operators, and regulatory response to extreme events. This dataset offers processed daily operation records—including inflow, outflow, and storage—for 256 major reservoirs across the Contiguous United States (CONUS) from 1990 to 2019. The reservoirs were selected from the dataset of Li et al. (2023), which includes 452 reservoirs, based on two criteria: (1) a minimum of 25 years of records (starting in 1990 and ending in 2014 or later), (2) less than 10% missing data during the study period. To enhance data quality, we remove the outliers of storage data with abnormal sudden storage changes even when inflows remain stable, and use linear interpolation to fill missing values, resulting in continuous daily records. Additionally, daily water surface elevation data are included for 217 of the 256 reservoirs. Related findings on changes in reservoir storage and operations are published in Chen and Cai (2025, Water Resources Research).

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
49.1586°
East Longitude
-59.9325°
South Latitude
24.3749°
West Longitude
-125.6747°

Content

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Oceanic and Atmospheric Administration Cooperative Institute for Research on Hydrology (CIROH) NA22NWS4320003

How to Cite

Chen, Y., X. Cai, D. Li (2026). Historical Operation Data of 256 Reservoirs in Contiguous United States, HydroShare, https://doi.org/10.4211/hs.092720588e2e4524bf2674235ff69d81

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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