GLOW-S River Width dataset
收藏NIAID Data Ecosystem2026-05-02 收录
下载链接：
https://zenodo.org/record/11200973
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资源简介：
Introduction:
The GLOW-S dataset provides a comprehensive record of global river widths, captured with high-resolution Sentinel-2 imagery. This dataset focuses on delivering an enhanced spatial and temporal analysis of river widths, suitable for diverse hydrological and environmental studies.
Data Collection and Processing:
Image Source: River width data were extracted from Sentinel-2 satellite imagery accessed via Google Earth Engine, utilizing higher resolution capabilities than previous datasets based on Landsat.
Extraction Methodology: Following validated methods from prior research (Feng et al., 2019; 2022), the dataset involves:
Identification of rivers observable in Sentinel-2 images.
Construction of cross-sections for width extraction.
Application of quality filters on images to ensure accuracy in width measurements.
Determination of water extent and subsequent river width calculation at each cross-section for images spanning 2017 to 2022.
Dataset Features:
Temporal Coverage: Data spans from 2017 to 2022, capturing seasonal and interannual variations in river width.
Spatial Resolution: Utilizes the superior spatial resolution of 10m from Sentinel-2 for detailed river width analysis.
Postprocessing: When multiple observations for the same cross-section and date exist, the dataset averages these widths to enhance usability.
Column names:
riverID (cross section identifier): RXS
date (image capture date): YYYY-MM-DD
width (river width captured in meters)
Additional data: The shapefiles of cross sections are also attached alongside.
创建时间：
2024-05-24
