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 17 of 17 for “"Landsat ETM+"”.
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An Alternate Approach to Ecosystem Mapping: Fusing Orthophotography with LANDSAT ETM+ Data for a Object-Based Classification, South Eastern Arkansas.
… different resolution imagery (orthoimages and LANDSAT ETM+) could be combined to produce a hybrid dataset with enhanced spectral, spectral and temporal properties, and processed to obtain a object-based classification of land cover of bottomland and pine hardwood forest in south eastern …
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Mapping the forest cover of Uganda with Spot (XS) and Landsat (ETM+) images : (a case study of Bwindi Impenetrable National Park, Uganda)
… processing techniques were applied to SPOT and Landsat Imagery using Erdas Imagine (8.4) and Arc View GIS software. A combination of original and derived bands (Principal Components, Tasseled Cap and Texture Analysis) was used for the image analysis. Both supervised and unsupervised …
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Estimating Carbon Pool and Carbon Release due to Tropical Deforestation Using High-resolution Satellite Data
… to a test site of Bangladesh. The research used Landsat ETM+, Landsat TM and IRS pan images of 2001, 1992 and 1999 respectively. Geometrically corrected Landsat ETM+ imagery was obtained from USGS and adjusted to the field using GPS. Historical images were corrected using image-to-image …
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Spatial modelling of small mammal distributions in relation to parasite transmission in western China
… landscape characteristics derived from multiple Landsat TM,Landsat ETM+ and MODIS satellite-derived datasets. Statistical models are used to identifythe landscape variables influencing the small mammal spatial distributions, and to describethe nature of these relationships. They are then used …
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Remote sensing for developing an operational monitoring scheme for the Sundarban Reserved Forest, Bangladesh <engl.>
… Sundarban. This research used medium resolution Landsat ETM data of November 2000 and Landsat TM data of January 1989 to assess and monitor the forest for 1. Identification of the operational tools for mapping and monitoring the forest as well as on the examination of the reliability of the …
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Detection and prediction of biodiversity patterns as a rapid assessment tool in the tropical forest of East Usambara, Eastern Arc Mountains, Tanzania
… spectral reflectance values from pixels in the Landsat Enhanced Thematic Mapper (Landsat ETM) image covering the study area that corresponded to the ground sample points. The spectral information from different bands formed the satellite image-based variables in the dataset. The best satellite …
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Glacial Geomorphology of southern Alberta, Canada
… Shuttle Radar Topography Mission (SRTM) and Landsat 7 Enhanced Thematic Mapper (Landsat ETM+) data sets were used to map the regional picture. Then, Aerial Photo Investigation (API), ground truthing and sedimentary analyses were employed to provide a detailed, localised focus into the …
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Desarrollo de un modelo de geoprocesamiento para la valoración productiva y tributaria de tierras agrícolas en Venezuela
… derivado de las imágenes radar SRTM, de imágenes Landsat ETM+ y de información climatológica del área. En definitiva se seleccionaron 19 variables como predictoras del modelo y se obtuvo un ajuste a nivel regional con un pseudo R2 de 0.48, estadísticamente significativo (p≈0), y un Índice Kappa …
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Refinement of Automated Forest Area Estimation via Iterative Guided Spectral Class Rejection
… of this project was to develop an operational Landsat TM image classification protocol for FIA forest area estimation. A hybrid classifier known as Iterative Guided Spectral Class Rejection (IGSCR) was automated using the ERDAS C Toolkit and ERDAS Macro Language. The resulting program was …
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A multi-scaled approach to vegetation and landscape assessment in the Barents region: Reindeer habitat in a climate of change
… of a thirty-metre resolution map, based on Landsat ETM+ satellite sensor imagery. The study region is unusually heterogeneous, complicating classification development. The third and coarsest scale comprises existing regional and global land-cover assessments, with resolutions of one to five …
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Broad-scale Assessment of Crop Residue Management Using Multi-temporal Remote Sensing Imagery
… crop management practices and policies. Because Landsat has been and will continue to image the Earth globally, it provides opportunities for systematic mapping of crop residue cover (CRC) /tillage practices. Thus, the overall objective of this study is to develop methodologies to improve our …
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Increasing the Precision of Forest Area Estimates through Improved Sampling for Nearest Neighbor Satellite Image Classification
… classifications of three mosaicked Landsat ETM+ images with the nearest neighbor decision rule were explored. Large training data pools of single pixels were used in simulations to create samples with three sampling methods (random, stratified random, and systematic) and eight sample …
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Recent Changes to Langjökull Icecap, Iceland: An investigation integrating airborne LiDAR and satellite imagery
… which employs visible light imagery (here, Landsat ETM+ band 4) to interpolate unmeasured sections of this fragmented data set. A complete digital elevation model (DEM) of Langjökull was produced, and photoclinometry was determined to be a satisfactory and robust technique for topographic …
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Remote sensing-based analysis of land cover detrimental for ecosystem services in fragile lands of Ethiopia
… of the Awash basin of Ethiopia were mapped using Landsat ETM + and ASTER images for the years 2000, 2005, 2010 and 2013, and potential impacts on ecosystem services were assessed. Results showed that over the past decade P. juliflora spread rapidly and has had negative impacts on the supplies of …
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Multispectral classification and reflectance of glaciers: in situ data collection, satellite data algorithm development, and application in Iceland & Svalbard
… results from current sensors such as ASTER and Landsat ETM+ as well as ESA’s upcoming Sentinel-2 and NASA’s recently launched LDCM. In addition, images from the Landsat data archive are used to classify glacier facies and calculate the albedo of glaciers on the Brøgger Peninsula, Svalbard. The …
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Mapping and monitoring forest cover changes in Lao PDR using remote sensing
… a period of ten years between 2003 and 2012. Landsat ETM+ imagery from 2003 and 2012 was used in principal component analysis (PCA). This technique detected areas of vegetation cover change (both vegetation increase and loss) with high overall accuracy (87%). The results of these four studies …
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Land use change and natural Araucaria forest degradation : northeastern misiones - Argentina
Originally, araucaria forest was characteristic of the northeast Misiones landscape, covering around 210.000 hectares. The broad variety of possible uses for araucarian timber, as well as a growing need for agricultural land, however, leads to the circumstance that since the middle of the past …