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 24 for “"Quickbird"”.
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Potential of remote sensing and GIS as landscape structure and biodiversity indicators
… This contained fused Landsat-IRS with 5m and Quickbird satellite with 2.8m and colour infrared orthophotos with 0.6m spatial resolution. Abundance and species richness of plants, birds and carabides together with presence-absence of Sorbus aucuparia (plants), Erithacus rubecula (birds) and …
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Sagebrush Ecosystem Characterization, Monitoring, and Forecasting with Remote Sensing: Quantifying Future Climate and Wildlife Habitat Change
… values ranged from 4.90% to 10.16% for 2.4-m QuickBird, 6.01% to 15.54% for 30-m Landsat, and 6.97% to 16.14% for 56-m AWiFS. The change over time of five of these continuous field components (bare ground, herbaceous, litter, sagebrush, and shrub) was measured on the ground and by satellite …
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Time Series Analysis of Vegetation Change using Hyperspectral and Multispectral Data
… multispectral datasets (IKONOS from 2007 and QuickBird from 2006 and 2009) to create vegetation classification maps using both library spectra and regions of interest. Two sets of classification maps were produced using Mixture-Tuned Matched Filtering. The results were assessed visually and …
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Satellite-based assessment of invasive vegetation in Lake Chad Basin, West Africa
… MODIS satellite imagery and high resolution QUICKBIRD satellite imagery. The satellite imagery was augmented with ground truth data obtained during field work in the LCB by a UMKC team of scientists and students in 2009. Land Use Land Change (LULC) classification was carried out using Landsat …
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Impervious Surfaces Mapping Using High Resolution Satellite Imagery
… surfaces from multispectral IKONOS and QuickBird imagery acquired in both leaf-on and leaf-off conditions. Accuracy assessments were performed, using truth data generated by manual classification, with Kappa statistics and Zonal statistics to select the most appropriate image processing …
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Automatic road network extraction from high resolution satellite imagery using spectral classification methods
… system, capable of extracting roads from QuickBird satellite imagery. The second objective is to integrate a variety of algorithms within the road network extraction system. The benefits of using each of these algorithms within the proposed road extraction system, is illustrated. Finally, …
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Sub-Pixel Classification of Historical and Current Marsh Habitat For the Eastern Mississippi Gulf Coast Using Remotely Sensed Images
… time series. Landsat (medium resolution) and Quickbird (high resolution) imagery will be utilized to complete a regression tree based on the digital numbers and predictions will be completed by comparing multiple methods including pruning, bootstrapping and random forest. Then an image …
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Aerosol optical depth retrievals from high-resolution commercial satellite imagery over areas of high surface reflectance
… aerosol optical depth. Initial results based on QuickBird imagery and AERONET data collected during the UAE2 campaign, as well as archive imagery and AERONET data for four other cities, indicate that aerosol optical depth retrievals are possible in the visible and near-infrared region with an …
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The Use of Remote Sensing to Map and Monitor Coastal Dune Vegetation Change at Southampton, Ontario, Canada
… vegetation index (NDVI) images produced from QuickBird and GeoEye-1 imagery acquired in 2005 and 2012, respectively. Next, a post-classification comparison change-detection technique was applied to determine the patterns of change in vegetation cover. Finally, the maximum-likelihood classifier …
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Fernerkundung und GIS zur Erfassung, Modellierung und Visualisierung orientalischer Stadtstrukturen : das Beispiel Sanaa (Jemen)
… operationellen Fernerkundungssystemen (wie z.B. QuickBird, Ikonos u. a.) erlauben die Erkennung und Kartierung urbaner Objekte, wie Gebäude, Straßen und sogar Autos. Die mit ihnen erstellten Karten und den daraus gewonnenen Informationen können zur Erfassung von Urbanisierungsprozessen (Stadt- …
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Detection of potential arable land with remote sensing and GIS. A Case Study for Kjósarhreppur
… image analysis was carried out using SPOT-5 and Quickbird images to classify land into arable and potential arable land using both supervised and unsupervised classification. Subsequently it was examined whether it would be possible to use vegetation indices for this analysis. The resulting …
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Mapping vegetation with remote sensing and GIS data using object-based analysis and machine learning algorithms
… individual tree species. These datasets include Quickbird, LiDAR, and GIS derived terrain data. Improvements in tree species classification were obtained and the best data combination was terrain context (based on slope, elevation, and wetness), tree height, canopy shape, and branch density …
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Using high resolution satellite imagery to map aquatic macropyhtes on multiple lakes in northern Indiana
… for mapping aquatic plants using high resolution Quickbird satellite imagery obtained in 2007 and 2008. The study area included nine lakes in northern Indiana chosen because they are used for recreation, have residential development along their shorelines, support a diverse wildlife population, …
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Mapping mixed and fragmented forest associations with high spatial resolution satellite imagery : capabilities and caveats
… be well distinguished from younger forests using QuickBird spectral and textural data. However, discrimination among late seral forest associations is challenging, especially in the absence of landscape positional variables. Classification accuracies were particularly low for rare forest …
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Intra- and Inter-Seasonal Variability of Supra-Glacial 1 Streams and Lakes over the West Greenland Ice Sheet 2 from High-Resolution Satellite Optical Data
… high-resolution imagery from World View - 2 and Quickbird - 2 satellites applied to ArcGIS® software, surface streams were identified through band math algorithms, threshold classifications, and morphological operations. I also provide depth estimations and corresponding volume estimations for …
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The Use of Remote Sensing for Coral Reef Mapping in Support of Integrated Coastal Zone Management: A Case Study in the NW Red Sea - Volume I
… an effective ICZM. Based on Landsat 7 ETM+ and QuickBird data, accurate information has been collected on the bathymetric structure of the coral reef seabed, its geomorphological zonation, and the distribution of the main marine coastal habitats. The possibility to monitor changes in these …
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Conserving Moving Species under Changing Landscapes and Climates
… in commercial high resolution satellites such as QuickBird may hinder land cover change monitoring efforts.</p><p>Chapter 2 uses Global Climate Models and museum specimens to projects the impact of climate change on the flora of California, a global biodiversity hotspot. With anticipated climate …
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Geo-Visualization Tools for Participatory Urban Planning - The Case of Tripoli, Lebanon
… Master Plan, both geo-referenced to a mosaic of QuickBird satellite imagery used to assist the participant’s orientation. The second technique was the Lenticular Foil Display (LFD) using the so-called flip effect, also based on the geo-coding of the same three “layers”. By tilting this product …
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