College of Engineering

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The College of Engineering at Montana State University will serve the State of Montana and the nation by fostering lifelong learning, integrating learning and discovery, developing and sharing technical expertise, and empowering students to be tomorrow's leaders.

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Author: search.filters.author.Roddewig, Michael R.search.filters.applied.f.department: search.filters.department.Electrical & Computer Engineering.

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    Lidar measurements of the diffuse attenuation coefficient in Yellowstone Lake
    (2020-03) Roddewig, Michael R.; Churnside, James H.; Shaw, Joseph A.
    Airborne lidar study of lake ecosystems is still a relatively unexplored field. In this paper we present measurements of the diffuse attenuation coefficient of downwelling irradiance (𝐾𝑑) obtained using a 532 nm airborne lidar in flights during 2004 and 2016 over Yellowstone Lake, Yellowstone National Park, Wyoming, USA. We compare the lidar measurements with MODIS 𝐾𝑑 data, discuss the impact that local weather and river inflows/outflows may have had on the data, compare to previous models of the diffuse attenuation coefficient, and examine several published relationships converting 𝐾𝑑 to Secchi disk depth.
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    Airborne lidar detection of an underwater thermal vent
    (2017-08) Roddewig, Michael R.; Churnside, James H.; Shaw, Joseph A.
    We report the lidar detection of an underwater feature that appears to be a thermal vent in Yellowstone Lake, Yellowstone National Park, USA, with the Montana State University Fish Lidar. The location of the detected vent was 30 m from the closest vent identified in a United States Geological Survey of Yellowstone Lake in 2008. A second possible vent is also presented, and the appearance of both vents in the lidar data is compared to descriptions of underwater thermal vents in Yellowstone Lake from the geological literature. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
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