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A global dataset of the shape of drainage systems

Urheber*innen
/persons/resource/chuanqi

He,  Chuanqi
4.7 Earth Surface Process Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/cyang

Yang,  Ci-Jian
4.6 Geomorphology, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/turowski

Turowski,  J.
4.6 Geomorphology, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Ott,  Richard F.
External Organizations;

/persons/resource/jbraun

Braun,  Jean
4.7 Earth Surface Process Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/htang

Tang,  Hui
4.7 Earth Surface Process Modelling, 4.0 Geosystems, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Ghantous,  Shadi
External Organizations;

Yuan,  Xiaoping
External Organizations;

Stucky de Quay,  Gaia
External Organizations;

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5025336.pdf
(Verlagsversion), 12MB

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Zitation

He, C., Yang, C.-J., Turowski, J., Ott, R. F., Braun, J., Tang, H., Ghantous, S., Yuan, X., Stucky de Quay, G. (2024): A global dataset of the shape of drainage systems. - Earth System Science Data, 16, 2, 1151-1166.
https://doi.org/10.5194/essd-16-1151-2024


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025336
Zusammenfassung
Drainage basins delineate Earth's land surface into individual water collection units. Basin shape and river sinuosity determine water and sediment dynamics, affecting landscape evolution and connectivity between ecosystems and freshwater species. However, a high-resolution global dataset for the boundaries and geometry of basins is still missing. Using a 90 m resolution digital elevation model, we measured the areas, lengths, widths, aspect ratios, slopes, and elevations of basins over 50 km2 globally. Additionally, we calculated the lengths and sinuosities of the longest river channels within these 0.67 million basins. We built a new global dataset, Basin90m, to present the basins and rivers, as well as their morphological metrics. To highlight the use cases of Basin90m, we explored the correlations among morphological metrics, such as Hack's law. By comparing with HydroSHEDS, HydroATLAS, and Google Earth images, we demonstrated the high accuracy of Basin90m. Basin90m, available in shapefile format, can be used on various GIS platforms, including QGIS, ArcGIS, and GeoPandas. Basin90m has substantial application prospects in geomorphology, hydrology, and ecology. Basin90m is available at https://doi.org/10.5880/GFZ.4.6.2023.004 (He et al., 2023).