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Michigan Technological University

Michigan Tech Publications

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Articles 61 - 79 of 79

Full-Text Articles in Social and Behavioral Sciences

Spatial And Temporal Variability Of Inherent And Apparent Optical Properties In Western Lake Erie: Implications For Water Quality Remote Sensing, Michael Sayers, Karl Bosse, Robert Shuchman, Steven A. Ruberg, Gary L. Fahnenstiel, George Leshkevich, Et Al. Jun 2019

Spatial And Temporal Variability Of Inherent And Apparent Optical Properties In Western Lake Erie: Implications For Water Quality Remote Sensing, Michael Sayers, Karl Bosse, Robert Shuchman, Steven A. Ruberg, Gary L. Fahnenstiel, George Leshkevich, Et Al.

Michigan Tech Publications

Lake Erie has experienced dramatic changes in water quality over the past several decades requiring extensive monitoring to assess effectiveness of adaptive management strategies. Remote sensing offers a unique potential to provide synoptic monitoring at daily time scales complementing in-situ sampling activities occurring in Lake Erie. Bio-optical remote sensing algorithms require knowledge about the inherent optical properties (IOPs) of the water for parameterization to produce robust water quality products. This study reports new IOP and apparent optical property (AOP) datasets for western Lake Erie that encapsulate the May–October period for 2015 and 2016 at weekly sampling intervals. Previously reported IOP …

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Satellite Monitoring Of Harmful Algal Blooms In The Western Basin Of Lake Erie: A 20-Year Time-Series, Michael Sayers, Amanda Grimm, Robert Shuchman, Karl Bosse, Gary L. Fahnenstiel, Steven A. Ruberg, George A. Leshkevich Jun 2019

Satellite Monitoring Of Harmful Algal Blooms In The Western Basin Of Lake Erie: A 20-Year Time-Series, Michael Sayers, Amanda Grimm, Robert Shuchman, Karl Bosse, Gary L. Fahnenstiel, Steven A. Ruberg, George A. Leshkevich

Michigan Tech Publications

Blooms of harmful cyanobacteria (cyanoHABs) have occurred on an annual basis in western Lake Erie for more than a decade. Previously, we developed and validated an algorithm to map the extent of the submerged and surface scum components of cyanoHABs using MODIS ocean-color satellite data. The algorithm maps submerged cyanoHABs by identifying high chlorophyll concentrations (>18 mg/m3) combined with water temperature >20 °C, while cyanoHABs surface scums are mapped using near-infrared reflectance values. Here, we adapted this algorithm for the SeaWiFS sensor to map the annual areal extents of cyanoHABs in the Western Basin of Lake Erie for the …

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Determining Remote Sensing Spatial Resolution Requirements For The Monitoring Of Harmful Algal Blooms In The Great Lakes, John Lekki, Eric Deutsch, Michael Sayers, Karl Bosse, Robert Anderson, Roger Tokars, Reid W. Sawtell Jun 2019

Determining Remote Sensing Spatial Resolution Requirements For The Monitoring Of Harmful Algal Blooms In The Great Lakes, John Lekki, Eric Deutsch, Michael Sayers, Karl Bosse, Robert Anderson, Roger Tokars, Reid W. Sawtell

Michigan Tech Publications

Harmful algal blooms (HABs) have become a major health and environmental concern in the Great Lakes. In 2014, severe HABs prompted the State of Ohio to request NASA Glenn Research Center (GRC) to assist with monitoring algal blooms in Lake Erie. The most notable species of HAB is Microcystis aeruginosa, a hepatotoxin producing cyanobacteria that is responsible for liver complications for humans and other fauna that come in contact with these blooms. NASA GRC conducts semiweekly flights in order to gather up-to-date imagery regarding the blooms' spatial extents and concentrations. Airborne hyperspectral imagery is collected using two hyperspectral imagers, HSI-2 …

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Cyber Threats, Harsh Environment And The European High North (Ehn) In A Human Security And Multi-Level Regulatory Global Dimension: Which Framework Applicable To Critical Infrastructures Under “Exceptionally Critical Infrastructure Conditions” (Ecic)?, Sandra Cassotta, Roman Sidortsov, Christer Pursiainen, Michael Evan Goodsite Mar 2019

Cyber Threats, Harsh Environment And The European High North (Ehn) In A Human Security And Multi-Level Regulatory Global Dimension: Which Framework Applicable To Critical Infrastructures Under “Exceptionally Critical Infrastructure Conditions” (Ecic)?, Sandra Cassotta, Roman Sidortsov, Christer Pursiainen, Michael Evan Goodsite

Michigan Tech Publications

Business opportunities in the European High North (EHN) are accompanied by the danger of cyber-threats, especially to critical infrastructures which in these Arctic regions become “extra critical” because of the harsh environmental climatic conditions and remoteness of distances. Critical infrastructures (CI) in the EHN are crucial for numerous sectors, such as the energy sector which is completely depended on digitalization, internet and computers’ commands. Such a new condition of extra criticality should also include human security concerns to avoid human disasters. An effective legal framework under “exceptionally critically infrastructure conditions” (ECIC) for this technology is important not only in terms …

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Spatial-Temporal Variability Of In Situ Cyanobacteria Vertical Structure In Western Lake Erie: Implications For Remote Sensing Observations, Karl Bosse, Michael Sayers, Robert Shuchman, Gary L. Fahnenstiel, Steven A. Ruberg, David L. Fanslow, Dack G. Stuart, Thomas H. Johengen, Ashley M. Burtner Feb 2019

Spatial-Temporal Variability Of In Situ Cyanobacteria Vertical Structure In Western Lake Erie: Implications For Remote Sensing Observations, Karl Bosse, Michael Sayers, Robert Shuchman, Gary L. Fahnenstiel, Steven A. Ruberg, David L. Fanslow, Dack G. Stuart, Thomas H. Johengen, Ashley M. Burtner

Michigan Tech Publications

Remote sensing has provided expanded temporal and spatial range to the study of harmful algal blooms (cyanoHABs) in western Lake Erie, allowing for a greater understanding of bloom dynamics than is possible through in situ sampling. However, satellites are limited in their ability to specifically target cyanobacteria and can only observe the water within the first optical depth. This limits the ability of remote sensing to make conclusions about full water column cyanoHAB biomass if cyanobacteria are vertically stratified. FluoroProbe data were collected at nine stations across western Lake Erie in 2015 and 2016 and analyzed to characterize spatio-temporal variability …

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Archaeological Overview & Assessment Pullman National Historical Monument, Timothy Scarlett, Steven A. Walton Dec 2017

Archaeological Overview & Assessment Pullman National Historical Monument, Timothy Scarlett, Steven A. Walton

Michigan Tech Publications

The Archaeological Overview and Assessment (Archaeological O&A, or simply O&A) is a Baseline Research Report within the National Park Service's Culture Resource Management system. This report presents basic research results intended to help support planning regarding and management of park cultural resources, as well as supporting interpretive programming. The National Park Service defines an Archaeological O&A as a report which "describes and assesses the known and potential archaeological resources in a park area. The overview reviews and summarizes existing archaeological data; the assessment evaluates the data. The report assesses past work and helps determine the need for and design of …

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Semi-Automated Surface Water Detection With Synthetic Aperture Radar Data: A Wetland Case Study, Amir Behnamian, Sarah Banks, Lori White, Brian Brisco, Koreen Millard, Jon Pasher, Zhaohua Chen, Jason Duffe, Laura Bourgeau-Chavez, Michael Battaglia Nov 2017

Semi-Automated Surface Water Detection With Synthetic Aperture Radar Data: A Wetland Case Study, Amir Behnamian, Sarah Banks, Lori White, Brian Brisco, Koreen Millard, Jon Pasher, Zhaohua Chen, Jason Duffe, Laura Bourgeau-Chavez, Michael Battaglia

Michigan Tech Publications

In this study, a new method is proposed for semi-automated surface water detection using synthetic aperture radar data via a combination of radiometric thresholding and image segmentation based on the simple linear iterative clustering superpixel algorithm. Consistent intensity thresholds are selected by assessing the statistical distribution of backscatter values applied to the mean of each superpixel. Higher-order texture measures, such as variance, are used to improve accuracy by removing false positives via an additional thresholding process used to identify the boundaries of water bodies. Results applied to quad-polarized RADARSAT-2 data show that the threshold value for the variance texture measure …

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Enrollment Decision-Making In U.S. Forestry And Related Natural Resource Degree Programs, Mark Rouleau, Terry Sharik, Samantha Whitens, Adam Wellstead Aug 2017

Enrollment Decision-Making In U.S. Forestry And Related Natural Resource Degree Programs, Mark Rouleau, Terry Sharik, Samantha Whitens, Adam Wellstead

Michigan Tech Publications

This article investigates enrollment decision-making trends among students currently enrolled in forestry and related natural resource (FRNR) degree programs in the United States. We conducted an online survey administered to all student participants attending the Society of American Foresters (SAF) National Convention in Salt Lake City, UT, in 2014 to obtain our enrollment decision-making data. Students were asked to rank the enrollment factors they considered most important to their decision to enroll, and factors that caused them to hesitate when enrolling in their degree program. We found that the “typical” FRNR enrollee was a person who enjoyed being outdoors and …

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Digital Asset Management At Michigan Tech, Annelise Doll, Lindsay Hiltunen Nov 2016

Digital Asset Management At Michigan Tech, Annelise Doll, Lindsay Hiltunen

Michigan Tech Publications

Faced with the obsolescence of its digital archive platform, the Van Pelt and Opie Library searched for a solution with improved storage and access. The selected platform opens doors to exciting opportunities for digitization and staff have started on a path toward incorporating digital preservation into the library’s activities.

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Resiliency And Collapse: Lake Trout, Sea Lamprey, And Fisheries Management In Lake Superior, Nancy Langston Nov 2016

Resiliency And Collapse: Lake Trout, Sea Lamprey, And Fisheries Management In Lake Superior, Nancy Langston

Michigan Tech Publications

No abstract provided.

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Identification Of Woodland Vernal Pools With Seasonal Change Palsar Data For Habitat Conservation, Laura Bourgeau-Chavez, Yu Man Lee, Michael Battaglia, Sarah L. Endres, Zachary Laubach, Kirk Scarbrough Jun 2016

Identification Of Woodland Vernal Pools With Seasonal Change Palsar Data For Habitat Conservation, Laura Bourgeau-Chavez, Yu Man Lee, Michael Battaglia, Sarah L. Endres, Zachary Laubach, Kirk Scarbrough

Michigan Tech Publications

Woodland vernal pools are important, small, cryptic, ephemeral wetland ecosystems that are vulnerable to a changing climate and anthropogenic influences. To conserve woodland vernal pools for the state of Michigan USA, vernal pool detection and mapping methods were sought that would be efficient, cost-effective, repeatable and accurate. Satellite-based L-band radar data from the high (10 m) resolution Japanese ALOS PALSAR sensor were evaluated for suitability in vernal pool detection beneath forest canopies. In a two phase study, potential vernal pool (PVP) detection was first assessed with unsupervised PALSAR (LHH) two season change detection (spring when flooded—summer when dry) and validated …

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Boom, Bust And Beyond: Arts And Sustainability In Calumet, Michigan, Richelle Winkler, Lorri Oikarinen, Heather L. Simpson, Melissa Michaelson, Mayra Sanchez Gonzalez Mar 2016

Boom, Bust And Beyond: Arts And Sustainability In Calumet, Michigan, Richelle Winkler, Lorri Oikarinen, Heather L. Simpson, Melissa Michaelson, Mayra Sanchez Gonzalez

Michigan Tech Publications

Cycles of boom and bust plague mining communities around the globe, and decades after the bust the skeletons of shrunken cities remain. This article evaluates strategies for how former mining communities cope and strive for sustainability in the decades well beyond the bust, using a case study of Calumet, Michigan. In 1910, Calumet was at the center of the mining industry in the Upper Peninsula of Michigan, but in the century since its peak, mining employment steadily declined until the last mine closed in 1968, and the population declined by over 80%. This paper explores challenges, opportunities, and progress toward …

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The Windsor-Detroit Borderland: The Making Of A Key North American Environment Of Mobility, Tor H. Oiamo, Don Lafreniere, Joy Parr Jan 2016

The Windsor-Detroit Borderland: The Making Of A Key North American Environment Of Mobility, Tor H. Oiamo, Don Lafreniere, Joy Parr

Michigan Tech Publications

No abstract provided.

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Policy Formulation, Policy Advice And Policy Appraisal: The Distribution Of Analytical Tools, Michael Howlett, Seck L. Tan, Andrea Migone, Adam Wellstead, Bryan Evans Apr 2015

Policy Formulation, Policy Advice And Policy Appraisal: The Distribution Of Analytical Tools, Michael Howlett, Seck L. Tan, Andrea Migone, Adam Wellstead, Bryan Evans

Michigan Tech Publications

No abstract provided.

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Teaching Interdisciplinary Sustainability Science Teamwork Skills To Graduate Students Using In-Person And Web-Based Interactions, Jessie Knowlton, Kathleen E. Halvorsen, Robert Handler, Michael O'Rourke Dec 2014

Teaching Interdisciplinary Sustainability Science Teamwork Skills To Graduate Students Using In-Person And Web-Based Interactions, Jessie Knowlton, Kathleen E. Halvorsen, Robert Handler, Michael O'Rourke

Michigan Tech Publications

Interdisciplinary sustainability science teamwork skills are essential for addressing the world’s most pressing and complex sustainability problems, which inherently have social, natural, and engineering science dimensions. Further, because sustainability science problems exist at global scales, interdisciplinary science teams will need to consist of international members who communicate and work together effectively. Students trained in international interdisciplinary science skills will be able to hit the ground running when they obtain jobs requiring them to tackle sustainability problems. While many universities now have sustainability science programs, few offer courses that are interdisciplinary and international in scope. In the fall semester of 2013, …

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Perceptions Of Nongovernmental Organization (Ngo) Staff About Water Privatization In Developing Countries, Ellis A. Adams, Kathleen E. Halvorsen Nov 2014

Perceptions Of Nongovernmental Organization (Ngo) Staff About Water Privatization In Developing Countries, Ellis A. Adams, Kathleen E. Halvorsen

Michigan Tech Publications

Almost a billion people globally lack access to potable water. In the early 1990's, attempts to improve potable water access in the global south included a massive push for water services privatization, often involving the transfer of public water services to private companies. Critics of water privatization claim it rarely improves access to water, and in most cases, unfairly affect poor people. Proponents on the other hand argue that it is necessary for efficient management and capital investment in the water sector. Although development NGOs play an important role in developing country water provision, hardly any studies have sought to …

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Detecting Deception Via Eyeblink Frequency Modulation, Brandon S. Perelman Feb 2014

Detecting Deception Via Eyeblink Frequency Modulation, Brandon S. Perelman

Michigan Tech Publications

To assess the efficacy of using eyeblink frequency modulation to detect deception about a third party, 32 participants were sent on a mission to deliver a package to an interviewer. 17 of the participants lied to the interviewer about the details of their mock mission and 15 responded truthfully. During the interview, eyeblink frequency data were collected via electromyography and recorded video. Liars displayed eye- blink frequency suppression while lying, while truth tellers exhibited an increase in eyeblink frequency during the mission relevant questioning period. The compen- satory flurry of eyeblinks following deception observed in previous studies was ab- sent …

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Review Of Cox, Anthony, Empire, Industry And Class: The Imperial Nexus Of Jute, 1840-1940, Jonathan Robins Dec 2013

Review Of Cox, Anthony, Empire, Industry And Class: The Imperial Nexus Of Jute, 1840-1940, Jonathan Robins

Michigan Tech Publications

No abstract provided.

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A Net-Present Value Analysis For A Wind Turbine Purchase At A Small Us College, Nicholas H. Johnson, Barry D. Solomon May 2010

A Net-Present Value Analysis For A Wind Turbine Purchase At A Small Us College, Nicholas H. Johnson, Barry D. Solomon

Michigan Tech Publications

Wind power is becoming an increasingly attractive method of electric power generation due to concerns with global climate change, increasing uncertainty of future oil supplies, and energy security. While most large-scale wind turbines are part of wind farms, which help states meet state renewable energy standards, several colleges and universities in the United States have purchased wind turbines for financial and educational purposes. This paper gives details of a cost-benefit analysis completed for a small liberal arts college in Illinois, Principia College, which is considering buying a single large-scale turbine. The process set forth here can easily be adapted to …

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