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Full-Text Articles in Geological Engineering
Pre-Failure Persistent Scatterer Interferometry (Psi) And Soil Moisture Index (Smi) Analysis Of The Edenville Dam In Midland, Michigan, Ryan Klida
Dissertations, Master's Theses and Master's Reports
The Edenville Dam was an earth dam located approximately 15 miles northwest of Midland, Michigan. The dam impounded the Tobacco and Tittabawassee Rivers, forming Wixom Lake. On May 19th, 2020, the dam failed after three days of elevated rainfall. Flood waters from Wixom Lake caused the overtopping of the Sanford Dam downstream, and the flooding of the surrounding area. The Edenville Dam was 95 years old at the time of failure and was constructed before modern geotechnical engineering methods were widely practiced. Dam infrastructure similar to Edenville is not uncommon, requiring the need for increased monitoring. A pre-failure …
Application Of Remote Sensing For Permafrost Monitoring In Alaska, Iuliia V. Tcibulnikova
Application Of Remote Sensing For Permafrost Monitoring In Alaska, Iuliia V. Tcibulnikova
Dissertations, Master's Theses and Master's Reports
Permafrost covers about 85% of the state of Alaska; it is a fragile cryogenic phenomenon prone to degradation under thermal and mechanical (natural and anthropogenic) influences. This research analyzes the application of remote sensing for permafrost monitoring in the Prudhoe Bay area, Alaska. Thawing thermokarst lakes are assessed as the signs of permafrost degradation. Normalized Difference Water Index (NDWI) was used to detect thaw lakes in Landsat-8 satellite imagery within the 529-km2 study area in 2013 and 2020. The lakes were then mapped according to their size and growth rate. Lakes do not grow uniformly; some lakes grow while …