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Time-varying Streamflow and Fractals Dataset for United States

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Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 7.0 GB
Created:	Jun 18, 2025 at 7:48 p.m. (UTC)
Last updated:	Aug 14, 2025 at 2:38 p.m. (UTC)
Published date:	Aug 14, 2025 at 2:38 p.m. (UTC)
DOI:	10.4211/hs.44716e97517543889d2197aff6dd2cc3
Citation:	See how to cite this resource
Content types:	CSV Content

Sharing Status:	Published
Views:	1233
Downloads:	100
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Abstract

The dataset includes daily, weekly, monthly, quarterly, and yearly streamflow records with fractal and chaos characteristics for 2,899 USGS gauging stations in the U.S. and Puerto Rico (1970–2023) for three flow regimes: highest, average, and lowest. The series are available in various formats, including versions with incorrect or missing data that have been interpolated and filled, as well as the raw format. he available fractal and chaos metrics include Hurst exponents (calculated using rescaled range and detrended fluctuation analysis), multifractality dimension, entropy, Morlet wavelets (which consist of max, mean, and L2-norm modulus across three bands: low, mid, and high), Lyapunov exponents, and RQA analysis (which covers recurrence rate, determinism, laminarity, and trapping time). Fuzzy C-means clustering categorized the gauges into three dynamic classes with membership probabilities included. The dataset includes raw and processed series, dynamics metrics, and cluster probabilities matrix. The dataset supports hydrological modeling, regional classification, benchmarking, and machine learning applications. A visual map-based proxy is available.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

United States, Alaska, Hawaii, Puerto Rico

North Latitude

64.9020°

East Longitude

-65.6934°

South Latitude

18.0322°

West Longitude

-159.6199°

Temporal

Start Date:
End Date:

Content

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Related Geospatial Features

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Related Resources

The content of this resource is derived from

U.S. Geological Survey, National Water Information System, https://waterdata.usgs.gov/nwis/rt

Credits

Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
National Oceanic and Atmospheric Administration	Regional Geospatial Modeling Grant	NA19NOS4730207

How to Cite

Raczynski, K., K. Grala, J. Cartwright (2025). Time-varying Streamflow and Fractals Dataset for United States, HydroShare, https://doi.org/10.4211/hs.44716e97517543889d2197aff6dd2cc3

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

http://creativecommons.org/licenses/by/4.0/

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