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Showing 1 to 20 of 63 for “"Landsat TM"”.

  1. Landsat TM-Based Forest Area Estimation Using Iterative Guided Spectral Class Rejection

    Wayman, Jared PaulVirginia Tech2000

    … Phase 1 estimates of forest/non-forest with a Landsat Thematic Mapper-based forest area estimation. Corrected area estimates were obtained using a new hybrid classifier called Iterative Guided Spectral Class Rejection (IGSCR) for portions of three physiographic regions of Virginia. Corrected …

    vt Repository record

  2. The interpretation and characterisation of lineaments identified from Landsat TM imagery of SW England

    Rogers, John David1997

    Two Landsat TM scenes of SW England and a sub-scene of North Cornwall have been analysed visually in order to examine the effect of resolution on lineament interpretation. Images were viewed at several different scales as a result of varying image resolution whilst maintaining a fixed screen pixel …

    plymouth Repository record

  3. Application of Spectral Change Detection Techniques to Identify Forest Harvesting Using Landsat TM Data

    Chambers, Samuel DavidVirginia Tech2002

    … objectives were to determine the impact of atmospheric corrections applied before the change detection, and the affect post-processing methods to eliminate small groups of misclassified pixels ("salt and pepper" effect) had on accuracy. Landsat TM imagery of Louisa County, Virginia was …

    vt Repository record

  4. Landscape Level Evaluation of Northern Bobwhite Habitats in Eastern Virginia Using Landsat TM Imagery

    Schairer, Garrett L.Virginia Tech1999

    … population declines in Virginia. Virginia Department of Game and Inland Fisheries (VDGIF) personnel identified a lack of knowledge about the broad-scale, landscape level habitats in eastern Virginia. A large scale land cover map along with a detailed understanding of the spatial arrangements of …

    vt Repository record

  5. Using Landsat TM Imagery to Monitor Vegetation Change Following Flow Restoration to the Lower Owens River, California

    Bross, Lesley Crandell

    portland-state Repository record

  6. Application of Ancillary Data In Post-Classification to Improve Forest Area Estimates In A Landsat TM Scene

    Holoviak, Brent MatthewVirginia Tech2002

    … The current filter used by the Virginia Department of Forestry (VDoF) was compared to functions available in ERDAS Imagine. These filters were applied as part of the post-classification techniques. Results show there was no significant difference in map accuracies at the 95% confidence …

    vt Repository record

  7. Lineament and pegmatite mapping using landsat TM imagery and aerial photograph data: Kaseba-Katota Area, Serenje district, Central Zambia

    Nkemba, Simon2012

    … of geology, lineaments, faults (interpreted from Landsat Thematic Mapper (TM) image and aerial photographs), joints and foliation traces (mapped in the field). Remote sensing techniques. Geographic Information Systems (GIS) as well as statistical analyses applied to this digital database and the …

    zambia Repository record

  8. Assessing ice storm damage to hardwood forest canopies using the Advanced Solid-State Array Spectroradiometer (ASAS) and Landsat TM imagery

    Burnett, James Stuart

    … indices, Vegetation Index (VI), NDVI, and TM 5/4, were applied to a single post-event (August 1998) TM image and classification mapping and accuracy assessment methods were applied. The overall accuracies of the 3 indices to map 3 levels of damage were 68% for VI, 72% for NDVI, and 76% for …

    unh-thes Repository record

  9. Erfassung von neuartigen Waldschäden mit Landsat TM Satellitenbilddaten auf Basis eines bestehenden Stichprobennetzes : eine exemplarische Untersuchung an der Baumart Fichte im Schwarzwald

    Kahabka, Hanjo

    … untersucht die Möglichkeit des Einsatzes von Landsat TM Satellitendaten für die Erfassung von Nadelverlust an dem bestehenden Stichprobennetz im Untersuchungsgebiet Schwarzwald (SW Deutschland). Zwei terrestrische Datensätze mit unterschiedlichem Stichprobendesign wurden verwendet: <br>- …

    freiburg-diss Repository record

  10. Comparison of Segment and Pixel Based Non-Parametric Classification of Land Cover in the Amazon Region of Brazil Using Multitemporal Landsat TM/ETM+ Imagery

    Joseph, Katherine AmandaVirginia Tech2005

    … (CART and kNN) to classify a chronosequence of Landsat TM/ETM+ imagery spanning from 1992 to 2002 within the state of Rondônia, Brazil. Pixel-based classification was also implemented for comparison. Interannual multitemporal composites were used in each classification in an attempt to increase …

    vt Repository record

  11. Development of a Predictive Habitat Evaluation Model for Gaillardia Aestivalis (Walt.) Rock. Var. Winkleri (Cory) Turner Using GPS, Remote Sensing and GIS Techniques

    Rajasekhar, Dasyam Samuel2015

    … from paper maps, aerial photographs and a Landsat TM image. Sites occupied by G. aestivalis var. Winkleri were characterized as having highly acidic soils with poor nutrient content, good drainage and rapid permeability. Along with soil types, vegetation also is an important factor in …

    sfasu Repository record

  12. Mapping and Modeling Chlorophyll-a Concentrations in the Lake Manassas Reservoir Using Landsat Thematic Mapper Satellite Imagery

    Bartholomew, Paul J.Virginia Tech2003

    … Lake Manassas Reservoir using a combination of Landsat TM satellite imagery and ground based field measurements. Images acquired on May 14, 1998 and March 8, 2000 were analyzed with chlorophyll-a measurements taken on 13, 1998 and March 7, 2000. A ratio of Landsat TM band 3: Landsat Band 4 was …

    vt Repository record

  13. Optical and radar remote sensing of land use and land cover change in the tropics: An assessment of deforestation and secondary vegetation

    Salas, William Albert

    … in Amazonia and 4 sites in Southeast Asia using Landsat TM data from mid-1980s to late-1990s. Secondary vegetation was a large, rapidly changing pool. Variability in the observed annual rates of deforestation and secondary vegetation formation was high. The transition probabilities of both the …

    unh-thes Repository record

  14. Evaluation Of Selected Spectral Vegetation Indices In Senescent Rangeland Canopy Using Landsat Imagery

    Collins, Marla

    … spectral vegetation indices collected using the Landsat TM sensor, including simple ratios SWIR-SR (&rho;2215/&rho;1650) and SR71 (&rho;2215 /&rho;485) to estimate the amount of NPV and bare ground cover, respectively.</p>

    nodak Repository record

  15. O problema do pixel mistura: um estudo comparativo

    Caimi, Daniel1993

    … espaciais, por exemplo: SPOT 20 e 10 metros, LANDSAT-TM 30 metros e NOA-AVHRR 1100 metros. Essa resolução frequentemente não é grande o suficiente para um grande número de aplicações que necessitam de uma percepção da cena mais detalhada. Muitas vezes, no interior de uma célula de resolução …

    brazil-ufrgs Repository record

  16. Temporal, spatial, spectral and polarisation characteristics of the SAR backscatter from regenerating tropical forests

    Kuplich, Tatiana MoraUniversity of Southampton2001

    … quickly and are sequestering carbon from the atmosphere. Total forest biomass (which includes above and below ground living mass of plants and litter) is a measure of terrestrial vegetation carbon content. It follows that to determine the strength of terrestrial carbon sinks we require …

    soton Repository record

  17. The Use of Landsat Data to Monitor Forest Destruction in Eastern Honduras

    Stephenson, Nathan

    … case study investigates forest destruction using Landsat TM data over a three-year period in the state of Olancho located in Eastern Honduras. The case study will determine area and extent of deforestation by comparing two Landsat images approximately three years apart. Image processing software …

    mo-state Repository record

  18. Monitoring desertification in south west Tripoli using multi-temporal remotely sensing data and GIS

    Oune, OmarUniversity of Dundee2006

    … and deterioration of water resources etc. Landsat TM imagery has been used as a source of data to monitor land cover and its change over large areas.In this study, multi-temporal Landsat TM imagery has been used in order to map land cover and their changes during five-year intervals from …

    dundee Repository record

  19. Multiple data set integration and GIS techniques used to investigate linear structural controls in the southern Powder River Basin, Wyoming

    Rasco, Heath Patrick2019

    … River Basin were mapped and categorized from Landsat TM imagery, a Digital Elevation Model (30 m), and Digital Line Graph (DLG) hydrology files. A GIS program was written using DLG information to eliminate those lineaments that were within 20&deg; of roads and railroads. The DLG and DEM …

    wvu Repository record

  20. Estimating Carbon Pool and Carbon Release due to Tropical Deforestation Using High-resolution Satellite Data

    Rahman, Md. MahmudurTechnische Universität Dresden

    … 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 …

    qucosa-diss

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