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Post-Fire Near-Surface Runoff From Small-Scale Rainfall Simulations, Santa Cruz Mountains, Michael Founds
Post-Fire Near-Surface Runoff From Small-Scale Rainfall Simulations, Santa Cruz Mountains, Michael Founds
Natural Resources Management and Environmental Sciences
The influence of environmental variables on the runoff response to a fire is poorly understood. Small-scale rainfall simulation was used to study the factors impacting near-surface runoff following the Lockheed Fire, which occurred on August 12, 2009. A variable speed rainfall simulator was used to rain on 15 different test plots at an average rate of 50mmh-1. Variables of burn severity, time following the fire, soil parent material, vegetation type, and presence of a duff layer were all analyzed using the ratio of runoff to rainfall. The difference in-between burned sites and similar control sites were 19±6%. Only …
Rock Porosity Analysis Using High Resolution X-Ray Tomography, Leo Groner, Dula Parkinson, Katya Bazilevskaya
Rock Porosity Analysis Using High Resolution X-Ray Tomography, Leo Groner, Dula Parkinson, Katya Bazilevskaya
STAR Program Research Presentations
Understanding rock porosity, the fraction of rock volume that is in pores, is a key to modeling weathering and flow of water, petroleum and CO2 through geological structures. Weathering of rocks affects the CO2 cycle, nutrient cycle and soil formation. Rock porosity affects water flow rates and, in turn, affects weathering. Avizo software was used to explore, visualize and measure the reconstructed high-resolution X-ray micro-tomography data collected from scanned rocks. Many Avizo approaches were tried before arriving at an acceptable process to determine their porosity characteristics. Porosity dynamics are affected by weathering and lithification. At micron resolution, the image is …
Aerial Reconnaissance Of Stream Terraces And Landslides Within Bitterwater Creek Watershed In Kern County, California, Zachary Smith
Aerial Reconnaissance Of Stream Terraces And Landslides Within Bitterwater Creek Watershed In Kern County, California, Zachary Smith
Natural Resources Management and Environmental Sciences
No abstract provided.
Evidence Of Tectonic Uplift Along The Oceanic Fault Near San Simeon, San Luis Obispo County, California, George Gecy
Evidence Of Tectonic Uplift Along The Oceanic Fault Near San Simeon, San Luis Obispo County, California, George Gecy
Earth and Soil Sciences
Post-Seismic satellite imagery after the 2003 earthquake near San Simeon confirmed 10s of millimeters of north-east side uplift along the Oceanic Fault. In order to determine whether or not there has been a history of tectonic uplift northeast of the Oceanic Fault zone, longitudinal profiles of Morro Creek and San Simeon were made using a digital planimeter and 1:24,000 scale maps. Utilizing the stream profiles, convexities could be observed in the streams coinciding where the streams crossed the Oceanic Fault; of the stream profiles, the convexity along San Simeon Creek could be confirmed to be caused by north-east side uplift …