Field-based aeolian sediment transport threshold measurement : sensors, calculation methods, and standards as a strategy for improving inter-study comparison

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dc.contributor.authorBarchyn, Thomas E.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorHugenholtz, Chris H.
dc.date.accessioned2012-02-27T19:51:18Z
dc.date.available2012-02-27T19:51:18Z
dc.date.issued2010
dc.degree.levelMasters
dc.descriptionxi, 108 leaves : ill. ; 29 cmen_US
dc.description.abstractAeolian sediment transport threshold is commonly defined as the minimum wind speed (or shear stress) necessary for wind-driven sediment transport. Threshold is a core parameter in most models of aeolian transport. Recent advances in methodology for field-based measurement of threshold show promise for improving parameterizations; however, investigators have varied in choice of method and sensor. The impacts of modifying measurement system configuration are unknown. To address this, two field tests were performed: (i) comparison of four piezoelectric sediment transport sensors, and (ii) comparison of four calculation methods. Data from both comparisons suggest that threshold measurements are non-negligibly modified by measurement system configuration and are incomparable. A poor understanding of natural sediment transport dynamics suggests that development of calibration methods could be difficult. Development of technical standards was explored to improve commensurability of measurements. Standards could assist future researchers with data syntheses and integration.en_US
dc.identifier.urihttps://hdl.handle.net/10133/2616
dc.language.isoen_USen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Geography, 2010en_US
dc.publisher.departmentDepartment of Geographyen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectSoil erosion -- Mathematical models -- Evaluationen_US
dc.subjectSediment transport -- Mathematical models -- Evaluationen_US
dc.subjectWind erosion -- Mathematical models -- Evaluationen_US
dc.subjectEolian processes -- Mathematical models -- Evaluationen_US
dc.subjectDissertations, Academicen_US
dc.titleField-based aeolian sediment transport threshold measurement : sensors, calculation methods, and standards as a strategy for improving inter-study comparisonen_US
dc.typeThesisen_US
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