Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 60 for “"Landsat Imagery"”.
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DIGITAL IMAGE PROCESSING OF LANDSAT IMAGERY
… and storing remotely sensed images. Since LANDSAT II MSS data is being used in this study, the LANDSAT MSS system and calibration was discussed. An attempt is made to reduce radiometric errors in the data that were caused by decimal truncation during NASA's initial calibration. The results …
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Glaciological investigations in east greenland using digital landsat imagery
Sixteen late summer Landsat MSS scenes of East Greenland from 1986 to 1989 were acquired for use in glaciological and marine geological investigations. Drainage basin areas and snowline elevations were determined for 74 tidewater glaciers in the study area, and turbid meltwater plumes were …
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Mapping Elaeagnus Umbellata on Coal Surface Mines using Multitemporal Landsat Imagery
… time and spatial and spectral resolution of Landsat satellites make Landsat imagery well suited for mapping and characterizing land cover and forest recovery on former coal surface mines. I performed a multitemporal classification using a random forest analysis to map autumn olive on former …
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Evaluation Of Selected Spectral Vegetation Indices In Senescent Rangeland Canopy Using Landsat Imagery
… accessible and more costly hyperspectral aerial imagery. This study is an extension of this previous work using spectral vegetation indices collected using the Landsat TM sensor, including simple ratios SWIR-SR (ρ2215/ρ1650) and SR71 (ρ2215 /ρ485) to estimate the amount of NPV and …
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Pheasant Use of Wetlands During The Winter and Application of Landsat Imagery For Assessing Winter Habitat
… filled with snow early and were not utilized. Landsat data provided importation on the winter cover potential of a wetland. There were sharp tonal differences on the Landsat imagery between the sparsely vegetated wetlands which supported no birds and the tall, dense cattail, and shrub wetlands …
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Characterizing Impacts of and Recovery from Surface Coal Mining in Appalachian Forested Landscapes Using Landsat Imagery
… research investigating the potential for using Landsat data to identify and characterize woody canopy cover on reclaimed coal-mined lands through three separate studies. The objective of the first study was to assess whether surface coal mines in the forested central Appalachian regions of the …
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USING LANDSAT IMAGERY TO EVALUATE LANDSCAPE-LEVEL IMPACTS OF NATURAL GAS FIELD DEVELOPMENT: TAZOVSKY PENNINSULA, RUSSIA, 1984-2007
… areas. Freely available 30 meter resolution Landsat imagery from 1984 to 2007 was employed in this thesis to quantify the effects of natural gas infrastructure on the adjacent tundra using three methods: a landscape fragmentation analysis, mean and change in mean NDVI analyses, and a …
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USING LANDSAT IMAGERY TO EVALUATE LANDSCAPE-LEVEL IMPACTS OF NATURAL GAS FIELD DEVELOPMENT: TAZOVSKY PENNINSULA, RUSSIA, 1984-2007
… areas. Freely available 30 meter resolution Landsat imagery from 1984 to 2007 was employed in this thesis to quantify the effects of natural gas infrastructure on the adjacent tundra using three methods: a landscape fragmentation analysis, mean and change in mean NDVI analyses, and a …
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Analysis of water volume change of the lakes and reservoirs in the Mississippi River basin using Landsat imagery and satellite altimetry
… Digital Elevation Model (DEM). Because satellite imagery offers global coverage and DEM is the global digital representation of the land surface elevation with respect to any reference datum, this study allows for the evaluation of global water volume changes by acquiring lake area data from space …
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Historical mapping and monitoring of the mangrove forests of Ambergris Caye (Belize) using multi-date Landsat imagery: a twenty-six year history
… economy. In this study, I analyzed historical Landsat TM and ETM+ imagery of Ambergris Caye to examine how mangrove forest cover has changed from 1986 to 2012. Four classes were used based on spectral similarities: mangrove, water, non-mangrove vegetation, and residential/urban/barren land. …
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Assessing annual urban change and its impacts on evapotranspiration
… dissertation integrated a rich time series of Landsat imagery and NLCD to achieve annual urban change mapping in the Washington D.C. metropolitan area by using time series data change point detection methods. Three different time series change point detection methods were tested and compared to …
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The detection of wetlands using remote sensing in Qoqodala, Eastern Cape
… Eastern Cape Province, South Africa, using Landsat and/or Aster imagery. The methodology for mapping wetlands using Landsat imagery, proposed by Thompson, Marneweck, Bell, Kotze, Muller, Cox and Smith (2002) is adapted and applied to the study area. The same methodology is modified for use …
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Detection and characterization of forest disturbances in California
… studies have made use of time series analyses of Landsat imagery to study forest disturbance events at a variety of scales, but few have endeavored to attribute specific causal information to the disturbances detected, particularly at a subannual temporal scale. The purpose of this research is to …
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Discrimination of water from shadow regions on radar imagery using computer vision techniques
Unlike MSS LANDSAT imagery and other photography, the specific characteristics of the intensity of water and shadow in an SAR image make the task of discriminating them extremely difficult. In this thesis, we analyze the reflectivity mechanism of water and shadow on radar imagery and describe a …
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Spatial reasoning about remotely sensed data for drainage network mapping
In order to extract a drainage network from a LANDSAT scene of mountainous terrain, it is necessary to use an illumination model to separate the reflectance information from the topographic information in the LANDSAT data. From the reflectance information, visible stream segments can be detected. …
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Drive-By Geography: Perceptions of Urban Growth and Land Use in Hattiesburg, Mississippi
… and lastly juxtaposition of shapefiles onto Landsat imagery. To analyze the data I wrote narratives, created a multiple ring buffer, and calculated the point density of the landscape features. The results of this research show that urban growth and related land use change is expanding in a …
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