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.
Results
Showing 1 to 20 of 423 for “"Landsat"”.
-
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 …
-
Landsat Trophic State Assessment of Fellows Lake
The use of LANDSAT remote sensing techniques for monitoring trophic state at Fellows Lake is examined. Data is obtained for ten individual scene days (thrity sample sites) covering a two year period. Models are derived for trophic state prediction based on trophic state indexes computed for …
-
Landsat : water quality surveillance of Roodeplaat Dam
… prompted a study into the relationship between Landsat reflectance data and chlorophyll ~ and turbidity in Roodeplaat Dam. Surface and integrated chlorophyll a as well as surface and integrated turbidity were collected simultaneously with the satellite's overpass, from 32 sampling sites on the …
-
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 …
-
Land Cover of Virginia From Landsat Thematic Mapper Imagery
… Virginia, produced through interpretation of 14 Landsat Thematic Mapper (TM) scenes, circa 1991-1993. The land cover map, which has a 30m pixel size, was produced entirely with personal computers. Hypercluster aggregation, an unsupervised classification method, was used when hazy and mountainous …
-
Reflectance-based Calibration and Validation of the Landsat Satellite Archive
… project was to consistently calibrate the entire Landsat series to a common reflectance scale by performing cross-calibration corrections from Landsat-8 OLI to Landsat- 1 MSS. A consistent radiance-based calibration was already performed from Landsat-8 OLI through Landsat-1 MSS using bright …
-
Deep learning convolutional neural networks for Landsat-derived land cover mapping
… majority of studies using imagery finer than 2m. Landsat imagery which is freely available globally enables long-term studies of changes in land cover. Such studies have been undertaken for over 40 years at continental and, more recently, global scales using a variety of machine learning methods. …
-
Deep learning convolutional neural networks for Landsat-derived land cover mapping
… majority of studies using imagery finer than 2m. Landsat imagery which is freely available globally enables long-term studies of changes in land cover. Such studies have been undertaken for over 40 years at continental and, more recently, global scales using a variety of machine learning methods. …
-
Fourier Series Applications in Multitemporal Remote Sensing Analysis using Landsat Data
Researchers now have unprecedented access to free Landsat data, enabling detailed monitoring of the Earth's land surface and vegetation. There are gaps in the data, due in part to cloud cover. The gaps are aperiodic and localized, forcing any detailed multitemporal analysis based on Landsat data to …
-
The application of an illumination model to a mountainous LANDSAT scene
The multispectral scanners (MSS) of the LANDSAT satellites collect solar radiation of different wavelengths reflected from the earth's surface. While the different greytone values of a given band of a LANDSAT image of simple terrain are due almost entirely to the various reflectivity values of the …
-
Geographic information system strategies for improving Landsat land use classification accuracy
… use classification and mapping accuracies of Landsat multi spectral scanner (MSS) data. The specific strategies are additional-band, class reduction, exclusion, and conditional. Three classified images served as the basis upon which all accuracy improvements were determined. Generated from 4 …
-
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 …
-
Multisensor Multitemporal Fusion for Remote Sensing using Landsat and MODIS Data
The growing Landsat data archive represents more than four decades of continuous Earth observation. Landsat's role in scientific analysis has increased dramatically in recent years as a result of the open-access policy of the U.S. Geological Survey (USGS). However, this rich data record suffers …
-
The Use of Landsat Data to Monitor Forest Destruction in Eastern Honduras
… 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 …
-
Landsat Evaluation Of Trumpeter Swan Historical Nesting Sites In Yellowstone National Park
… in Yellowstone National Park (YNP) and evaluate Landsat images for changes to habitat. Historical nesting sites were evaluated through image classification and Normalized Difference Vegetation Index (NDVI) and compared to field conditions. Swan nesting records were analyzed in comparison to …
-
Relationships between tree rings and Landsat EVI in the Northeast United States
… networks of TRW chronologies and time series of Landsat EVI and Landsat-based phenological metrics in the Northeast United States. We hypothesized that mean TRW is positively correlated with mean monthly EVI during the growing season, EVI integrated over the growing season, and growing season …
-
Use of ancillary data in a Landsat classification of a forested wetland
Digital Landsat cover-type classifications have often proved less accurate than hoped for, or have been less detailed than needed. Recent research efforts have used additional data to supplement the four bands of Landsat MSS data in an attempt to increase the accuracies of computer classifications. …
Page 1 of 22