2025 CSDMS meeting-113: Difference between revisions
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|CSDMS meeting abstract title=Using flume and field measurements to estimate susceptibility to erosion | |||
|Working_group_member_WG_FRG=Terrestrial Working Group | |Working_group_member_WG_FRG=Terrestrial Working Group | ||
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|CSDMS meeting coauthor first name abstract=Andrew | |||
|CSDMS meeting coauthor last name abstract=Wickert | |||
|CSDMS meeting coauthor institute / Organization=University of Minnesota | |||
|CSDMS meeting coauthor town-city=Minneapolis | |||
|CSDMS meeting coauthor country=United States | |||
|State=Minnesota | |||
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|CSDMS meeting coauthor first name abstract=Jérôme | |||
|CSDMS meeting coauthor last name abstract=Lavé | |||
|CSDMS meeting coauthor institute / Organization=University Lorraine | |||
|CSDMS meeting coauthor town-city=Nancy | |||
|CSDMS meeting coauthor country=France | |||
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|CSDMS meeting coauthor first name abstract=Karen | |||
|CSDMS meeting coauthor last name abstract=Gran | |||
|CSDMS meeting coauthor institute / Organization=University of Minnesota | |||
|CSDMS meeting coauthor town-city=Duluth | |||
|CSDMS meeting coauthor country=United States | |||
|State=Minnesota | |||
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|CSDMS meeting coauthor first name abstract=Benjamin | |||
|CSDMS meeting coauthor last name abstract=Bugno | |||
|CSDMS meeting coauthor institute / Organization=University of Minnesota | |||
|CSDMS meeting coauthor town-city=Duluth | |||
|CSDMS meeting coauthor country=United States | |||
|State=Minnesota | |||
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{{CSDMS meeting abstract template 2025 | |||
|CSDMS meeting abstract=Models of bedrock river incision, whether stream-power or mechanistically based, incorporate approximations of bedrock susceptibility to erosion. One or more parameters for a specific basin, lithology or outcrop may be estimated, and related to erodibility, as well as abrasion and plucking characteristics. However, choosing those parameters requires information of bedrock properties, which are either approximated or measured. Field and flume measurements are currently used to obtain physical bedrock properties that can be used for those models. Most studies focus on either field or flume measurements, but it is unclear whether their results are interchangeable. Therefore, we compare field measurements of compressive strength obtained with the Schmidt hammer and fracture intensity and block size with macro-abrasion and attrition rates obtained by flume measurements. We aim to discuss their possible meaning in terms of physical erosion processes and their use for bedrock river incision modeling. | |||
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Revision as of 13:17, 28 March 2025
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Using flume and field measurements to estimate susceptibility to erosion
Jessica Marggraf,
(she/her),University of Minnesota Minneapolis Minnesota, United States. jmarggra@umn.edu
Andrew Wickert, University of Minnesota Minneapolis Minnesota, United States.
Jérôme Lavé, University Lorraine Nancy , France.
Karen Gran, University of Minnesota Duluth Minnesota, United States.
Benjamin Bugno, University of Minnesota Duluth Minnesota, United States.
Models of bedrock river incision, whether stream-power or mechanistically based, incorporate approximations of bedrock susceptibility to erosion. One or more parameters for a specific basin, lithology or outcrop may be estimated, and related to erodibility, as well as abrasion and plucking characteristics. However, choosing those parameters requires information of bedrock properties, which are either approximated or measured. Field and flume measurements are currently used to obtain physical bedrock properties that can be used for those models. Most studies focus on either field or flume measurements, but it is unclear whether their results are interchangeable. Therefore, we compare field measurements of compressive strength obtained with the Schmidt hammer and fracture intensity and block size with macro-abrasion and attrition rates obtained by flume measurements. We aim to discuss their possible meaning in terms of physical erosion processes and their use for bedrock river incision modeling.
