2019
DOI: 10.1088/1748-9326/aad8e9
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A multidisciplinary framework to derive global river reach classifications at high spatial resolution

Abstract: Projected climate and environmental change are expected to increase the pressure on global freshwater resources. To prepare for and cope with the related risks, stakeholders need to devise plans for sustainable management of river systems, which in turn requires the identification of management-appropriate operational units, such as groups of rivers that share similar environmental and biological characteristics. Ideally, these units are of a manageable size, and are biotically or abiotically distinguishable a… Show more

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Cited by 77 publications
(89 citation statements)
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“…6), and were therefore confident to proceed with the upscaling of CO 2 fluxes from mountain streams at the global scale. Here we used the Global River Classification (GloRiC) database 41 , an extended version of HydroSHEDS, that describes drainage networks of Earth’s surface in 15 arc-second (~500 m) spatial resolution including the networks above the 60°N latitude. These northern regions were poorly represented in previous estimates of global CO 2 evasion fluxes from streams and rivers 4,5 .…”
Section: Resultsmentioning
confidence: 99%
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“…6), and were therefore confident to proceed with the upscaling of CO 2 fluxes from mountain streams at the global scale. Here we used the Global River Classification (GloRiC) database 41 , an extended version of HydroSHEDS, that describes drainage networks of Earth’s surface in 15 arc-second (~500 m) spatial resolution including the networks above the 60°N latitude. These northern regions were poorly represented in previous estimates of global CO 2 evasion fluxes from streams and rivers 4,5 .…”
Section: Resultsmentioning
confidence: 99%
“…Channel width is inherently difficult to estimate for small streams. Rather estimating channel width from hydromorphological scaling relationships that also require information on hydraulic resistance 6,54 , we derived channel width from hydraulic scaling relationships specifically established for mountain streams in combination with discharge from the GloRiC database 41 . Discharge is available at the level of spatial resolution required for upscaling CO 2 fluxes, whereas parameters for hydraulic resistance are not.…”
Section: Resultsmentioning
confidence: 99%
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“…We sought to investigate morphometrics and their climatic dependence in an unbiased way, and at a scale appropriate for identifying climatic controls on drainage basin developments. Although global hydrography datasets exist, e.g., (Lehner et al, 2008;Ouellet Dallaire et al, 2019), none contained the relevant information to accomplish these goals. In particular, we required accurate topographic metrics (Grieve et al, 2016) within individual small drainage basins and their subbasins that lie entirely within a single climatic zone, so we could isolate the effects of climate on drainage basin development.…”
Section: Discussionmentioning
confidence: 99%
“…To our knowledge, this is the first demonstration of the potential utility of such an approach to examine and optimize socio-environmental research site selection. With new global data sets becoming available [40][41][42][43], future work should compare them in this context.…”
Section: Discussionmentioning
confidence: 99%