GSHA: Global Streamflow and Catchment Attributes for 21,568 Watersheds
by Ziyun Yin / Peking University
Available on 1 platform
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Description
GSHA synthesizes global streamflow characteristics, hydrometeorology, and catchment attributes for 21,568 watersheds from 13 agencies. The dataset includes yearly streamflow metrics, daily meteorological variables, water storage terms, vegetation indices, land use data, and reservoir information, with multiple data sources for uncertainty estimates. It was created by researchers including Ziyun Yin from Peking University, with a companion article submitted in 2023.
Use Cases
Modeling catchment hydrological responses based on daily meteorological variables and streamflow characteristics.
Analyzing long-term trends in water storage based on soil moisture, groundwater, and snow depth water equivalence data.
Assessing the impact of land use and land cover changes using yearly urban, cropland, and forest fraction data.
Evaluating reservoir regulation effects on river systems using degree of regulation and reservoir capacity information.
Quantifying uncertainty in hydrometeorological variables by comparing multiple independent data sources included in the synthesis.
Strengths
Covers 21,568 watersheds globally, providing a large sample for analysis.
Integrates data from 13 different agencies, offering a multi-source perspective.
Includes time series up to 43 years in length for some locations.
Provides uncertainty estimates for meteorological variables by incorporating multiple independent data sources.
Limitations
Static attributes like land physiography, soils, and geology are not directly included but linked externally to HydroATLAS.
Column-level documentation is absent; field semantics must be inferred after download.
Last update date is unknown; freshness unverified.
Provenance
Source
Peking University, based on discharge observations scraped from the web and matched to HydroATLAS.
Collection Method
Synthesis of observations from 13 agencies, with yearly characteristics derived from daily data.
Time Range
Time series up to 43 years (specific start/end years not provided).
Geography
Global coverage across 21,568 watersheds.
Static catchment attributes are not directly included; users must utilize the provided river ID match table to link with the external HydroATLAS dataset.