Download or read book Novel Applications of Remote Sensing and GIS in Mass Wasting Hazard Assessments for Two Fjords of South Central Alaska written by Matthew S. Balazs and published by . This book was released on 2021 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fjords of South-Central Alaska are dynamic environments and host to a number of natural hazards that have not received much attention from the research community. The cities of Seward and Whittier are two of Alaska’s most important marine transportation hubs, home to commercial fishing fleets, termini of the Alaska Railroad, and home to thousands of residents. This doctoral research focuses on landslides and their associated hazards in these under-studied areas. Chapter 2 involves surficial mapping of the study areas and documents the role of the underlying geologic processes that threaten the safety of people and infrastructure in the Passage Canal–Portage Valley area (including the town of Whittier), to better inform community planning, mitigation, and emergency response activities. Chapter 3 builds on the successes and lessons learned from the mapping efforts made in Chapter 2. A surficial geology and landslide inventory map were made using very high resolution orthoimagery, DEMs, and 3D models which were viewed in an immersive Virtual Reality (iVR) system. Chapter 4 examines the hazards associated with large amounts of sediment entering the alluvial fan system from further upslope. A collection of six Digital Elevation Models (DEMs) and meteorological data collected over a ten-year period were used to estimate flood-related sedimentation. Uncertainties in each DEM were accounted for, and a DEMs of Difference (DoD) technique was used to quantify the amount and pattern of sediment introduced, redistributed, or exiting the system. The study shows that the DoD method and using multiple technologies to create DEMs is effective in quantifying the volumetric change and general spatial patterns of sediment redistribution between the acquisition of DEMs. Correlations of the changes in sediment budget with rainfall data and flood events were made. During the years of average rainfall, the reaches in the corridor experienced an overall decrease in sediment load, while heavy rainfall events both saw large influx of new sediment and the reworking of existing sediment. This research is the first to collect and use high resolution data for generating digital elevation models, for using a DoD method for mapping elevation changes over time, and for using these products along with available ancillary data for a hazard assessment in these regions. This doctoral work lays out a solid foundation for further work in hazard assessment that will also guide decision-makers in the future on mitigation measures in these important population centers in south central Alaska.
Download or read book Applications of Remote Sensing GIS in Water Resources and Flooding Risk Managements written by Xianwei Wang /Ed.) and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing 96 written by Anna Spiteri and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing and GIS Applications to Forest Fire Management written by Emilio Chuvieco and published by . This book was released on 1995 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mapping Hazardous Terrain Using Remote Sensing written by R. M. Teeuw and published by Geological Society of London. This book was released on 2007 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dangers that we face from geohazards appear to be getting worse, especially with the impact of increasing population and global climate change. This collection of papers illustrates how remote sensing technologies - measuring, mapping and monitoring the Earth's surface from aircraft or satellites - can help us to rapidly detect and better manage geohazards. The hazardous terrains examined include areas of landslides, flooding, erosion, contaminated land, shrink-swell clays, subsidence, seismic activity and volcanic landforms. Key aspects of remote sensing are introduced, making this a book that can easily be read by those who are unfamiliar with remote sensing. The featured remote sensing systems include aerial photography and photogrammetry, thermal scanning, hyperspectral sensors, airborne laser altimetry (LiDAR), radar interferometry and multispectral satellites (Landsat, ASTER). Related technologies and methodologies, such as the processing of Digital Elevation Models and data analysis using Geographical Information Systems, are also discussed.
Download or read book Applications of Remote Sensing and GIS for Fire Hazard Categorization Vulnerability Assessment Modelling written by Sunil Bhaskaran and published by . This book was released on 2001 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Remote Sensing in Conservation Development and Management of the Natural Resources of the State of Alaska written by Alaska. Department of Economic Development and published by . This book was released on 1970 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Remote Sensing and GIS in Droughts and Floods Assessment and Monitoring written by Yaohuan Huang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue collates seven papers regarding the assessment or monitoring of hydrological disasters such as droughts and flood using remote sensing and geography information system (GIS) techniques. The new published research focused on evaluations and models of various hydrological hazards such as droughts and floods. Furthermore, we include two original scientific articles addressing the subject of water quality. This Special Issue received investigations based on different techniques such as remote sensing, GIS, machine learning and monitoring. All papers present findings characterized as unconventional, provocative, innovative and methodologically new. Scientific findings presented in this Special Issue highlight how a combination of various modern analysis techniques (e.g., remote sensing, GIS) can improve our understanding of complex hydrological hazards such as droughts and floods. We hope that the research contained within this Special Issue is useful to the scientific community, policymakers and stakeholders at large in the field of hydrological hazards.
Download or read book Geographic Information System and Remote Sensing Applications in Rural Alaska Subsistence Use Protection written by Kevin Gerard Meyer and published by . This book was released on 1985 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing 96 written by Anna Spiteri and published by . This book was released on 1997 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Radar and Infrared Airborne Remote Sensing to Geothermal Resource Assessment at Pilgrim Springs Alaska written by Kenneson G. Dean and published by . This book was released on 1981 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing by Satellite written by Albert E. Belon and published by . This book was released on 1972* with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural Disasters and Their Mitigation written by and published by . This book was released on 2000 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed papers presented at a workshop organized by Indian Institute of Remote Sensing at Dehra Dun, India, Oct. 1999.
Download or read book Landsat in Alaska written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background information on remote sensing and its use in the Bureau of Land Management Denali Planning Unit, Alaska.
Download or read book Site Investigation and GIS and Slope Stability Analysis of a Frozen Debris Lobe South central Brooks Range Alaska written by Jocelyn M. Simpson and published by . This book was released on 2015 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frozen debris lobes (FDLs) are large masses of soil, rock, incorporated organic material, and ice moving down permafrost-affected slopes in the south-central Brooks Range, Alaska. Here we focus on FDL-A, which is an impending geohazard to the Dalton Highway, located just under 40 m away from the embankment. We present the results of multi-faceted research, including field-based studies, GIS analysis, laboratory testing of soil samples, and slope stability analysis. Subsurface instrumentation indicates that major movement of FDL-A occurs in a shear zone 20.6 to 22.8 m below the ground surface, with temperature-dependent internal flow as a secondary movement mechanism. Field observations indicate the presence of massive, infiltration ice associated with cracks on the surface of the lobe. Surface measurements show an overall average rate of movement of 1.2 cm per day, which is an increase over historic rates. The GIS analysis also provided insight into the movement and instability of FDL-A, and provided groundwork for a GIS protocol to examine catchment and lobe features of all FDLs along the highway corridor. The slope stability analysis required a back analysis to determine soil strength parameters at failure, resulting in cohesion values between 43 to 53 kPa and friction angles between 10° and 16°. The modeling results indicated a high sensitivity to cohesion and pore water pressure. This is critical since the melting of massive ice and thawing of frozen soil will increase pore water pressure and lower shear strength, resulting in the acceleration of FDL-A towards the Dalton Highway.
Download or read book Integrating remote sensing and GIS for environmental applications written by J C. Hinton and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Second Special Alaska Issue written by Mark B. Shasby and published by . This book was released on 1988 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
