10.5880/GFZ.4.6.2023.004 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2024-03-05 urn:ogc:def:crs:EPSG:4326 Basin90m, a new global drainage basin dataset 2024-03-05 revision doi:10.5880/GFZ.4.6.2023.004 He, Chuanqi GFZ German Research Centre for Geosciences, Potsdam, Germany author Yang, Ci-Jian Department of Geography, National Taiwan University, Taipei, Taiwan author Turowski, Jens Martin GFZ German Research Centre for Geosciences, Potsdam, Germany author Ott, Richard F. GFZ German Research Centre for Geosciences, Potsdam, Germany author Braun, Jean GFZ German Research Centre for Geosciences, Potsdam, Germany author Tang, Hui GFZ German Research Centre for Geosciences, Potsdam, Germany author Ghantous, Shadi Institute of Environmental Science and Geography, University of Potsdam, Potsdam, Germany author Yuan, Xiaoping School of Earth Sciences, China University of Geosciences, Wuhan, China author Stucky de Quay, Gaia Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, US author GFZ Data Services publisher The current global dataset of drainage system shapes has a relatively low spatial resolution. We obtained a new dataset (Basin90m) by calculating the drainage basins larger than 50 km2 globally using a 90-meter resolution Digital Elevation Model (DEM). The total number of drainage basins is 667629. For each drainage basin, we extracted the spatial distribution of the longest river channel and the sinuosity of the river. We computed fundamental geometric parameters for the drainage basins, such as area, length, width, aspect ratio, slope, and elevation. Basin90m consists of vector files (ESRI Shapefile format) containing global drainage basins and river channels. The file sizes for the basin and river data are 7.8 and 2.5 GB, respectively. All calculations were automated using a MATLAB script. For a more detailed description of Basin90m, please refer to our submitted data description article titled "A global dataset of the shape of drainage systems". The Basin90m dataset includes data in four sections. The first section comprises drainage basins globally with an area larger than 50 km². The data format is ESRI Shapefile. Eight morphometric indi-ces of the drainage system are stored in the attribute table of the basin shapefile. The "Basins" folder contains six subfolders, each representing a continent. Each continent's subfolder contains all the basins in that continent, categorized by different stream orders. For instance, the "South America" subfolder contains nine shapefile files corresponding to stream orders 1-9. The names of the shapefile files include their continent and stream order information. For example, "South_America_Basin_8.shp" represents all basins in South America with a stream order of 8. The second part of the Basin90m data consists of global main river channels. The longest river channel of each basin is stored in a folder named "Rivers". The internal structure of this folder is the same as the "Basins" folder. For instance, "South_America_River_8.shp" represents the main river channels in South America with a stream order of 8. The third part of Basin90m data is an Excel file named "Basin90m". This file contains eight morphometric parameters for all the basins. It includes both a globally merged sheet and sheets distinguishing different stream orders. The fourth part of Ba-sin90m data is a folder named "Matlab_code", which contains Matlab code for the automated ex-traction of drainage systems and their morphometric parameters. He, Chuanqi GFZ German Research Centre for Geosciences, Potsdam, Germany chuanqi.he@gfz-potsdam.de pointOfContact EARTH SCIENCE > LAND SURFACE > LAND USE/LAND COVER > LAND COVER EARTH SCIENCE > LAND SURFACE > LANDSCAPE > LANDSCAPE ECOLOGY EARTH SCIENCE > LAND SURFACE > LANDSCAPE > LANDSCAPE PROCESSES EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TOPOGRAPHICAL RELIEF EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL LANDFORMS EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL PROCESSES NASA/GCMD Earth Science Keywords publication CC BY 4.0 CC BY 4.0 10.5194/essd-16-1151-2024 DOI IsSupplementTo 10.1029/2005RG000183 DOI Cites 10.1029/2008EO100001 DOI Cites 10.1002/hyp.9740 DOI Cites 10.1038/ncomms13603 DOI Cites 10.5194/esurf-2-1-2014 DOI Cites 10.1029/TR038i006p00913 DOI Cites 10.1038/s41597-022-01493-1 DOI Cites eng geoscientificInformation -180 180 -90 90 http://doi.org/10.5880/GFZ.4.6.2023.004 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information