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Showing 1 to 20 of 44 for “"Landsat 8"”.

  1. Comparison of spatial and spectral properties of Landsat-8 and Sentinel-2 data for mapping plant chlorophyll-a

    Bongwe, Vhuhwaho2023

    … to compare the spatial and spectral properties Landsat-8 and Sentinel-2 in estimating and mapping chlorophyll-a (chl-a) concentrations in the Vhembe District Municipality (VDM), South Africa. Methods Landsat-8 and Sentinel-2 multispectral data were used in conjunction with field data collected …

    venda Repository record

  2. Thermal remote sensing of volcanic activity by using Sentinel-2 and Landsat-8: an improvement of the MIROVA system

    Coppola, Diego, Massimetti, FrancescoUniversità degli Studi di Torino2022

    unito Repository record

  3. Reflectance-based Calibration and Validation of the Landsat Satellite Archive

    Chittimalli, Sandeep Kumar2016

    … 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 …

    sdstate Repository record

  4. Development of a Remote Sensing-Based Agriculture Monitoring Drought Index and Its Application Over Semi-Arid Region

    Hazaymeh, KhaledGraduate Studies2016

    … model (STI-FM) to generate synthetic Landsat-8 like data with 30 m spatial and 8 day temporal resolutions upon combining regular Landsat-8 (having 30 m spatial with 16 day temporal resolutions) with moderate-resolution imaging spectroradiometer (MODIS)-based 8-day composite data having …

    calgary Repository record

  5. Investigating the surface hydrology of Antarctic ice shelves using remote sensing and machine learning

    Dell, RebeccaUniversity of Cambridge2021

    … Ice Shelf for the 2016/2017 melt season in both Landsat 8 and Sentinel-2 imagery. Results presented for the Nivlisen Ice Shelf show the importance of two linear meltwater systems, which hold 63% of the total meltwater volume at the peak of the melt season. The second method uses machine learning …

    cambridge Repository record

  6. Análise espaço-temporal dos fluxos de carbono no domínio da floresta tropical sazonalmente seca, caatinga

    SILVA, Joélia Natália Bezerra daUniversidade Federal de Pernambuco2022

    … e a refletância de superfície obtida com o OLI - Landsat-8. Foram adquiridas 9 cenas do produto MOD09GA e 6 cenas do OLI - Landsat-8. Foi realizada a seleção de amostras espectrais na imagem (espectros de referência), considerando o ponto espectral do local de coleta. Os modelos de GPP foram …

    brazil-ufpe Repository record

  7. Band to Band Calibration and Relative Gain Analysis of Satellite Sensors Using Deep Convective Clouds

    Bhatta, Suman2017

    … band from well calibrated reflective bands of Landsat 8 using SCIAMACHY Deep Convective Cloud (DCC) spectra. Second, a novel method to derive relative gains using DCCs and improve the image quality of cirrus band scenes was developed. DCCs are very cold, bright clouds located in the tropopause …

    sdstate Repository record

  8. Remote sensing of penguin populations: Development and application of a satellite-based method

    Brown, Jennifer AnneUniversity of Cambridge2018

    … from WorldView-3 (~40 cm resolution) and Landsat 8 (~15 m resolution), are used to trial the index derived from the field spectra. Analysis of the field data and satellite images includes examination of guano colour for different species and comparison of methods of guano detection, aiming …

    cambridge Repository record

  9. Extreme weather disaster resilient port and waterway infrastructure for sustainable global supply chain

    Nguyen, Quang Van2020

    … demand and level of service, (2) developing Landsat-8 satellite imagery based methodology for mapping surface types and landuse, and (3) assessing the impact of coastal disasters and climate related sea level rise. The Autoregressive Integrated Moving Average (ARIMA) model equations, the …

    mississippi Repository record

  10. The Impact of Radiometric Calibration Error on Earth Observation-supported Decision Making

    Baber, SheilaMassachusetts Institute of Technology2021

    … response. For well-calibrated satellites such as Landsat 8, these drifts are well characterized and can be corrected for during processing—however, for satellites lacking on-board calibration (such as CubeSats), these trends can be difficult to detect and require novel methods combining cross …

    mit Repository record

  11. The application of Earth Observation for mapping soil saturation and the extent and distribution of artificial drainage on Irish farms

    O'Hara, RobertNational University of Ireland Maynooth2019

    … image classifications were implemented using Landsat 8 multispectral imagery and topographical data. The RF classifier achieved overall accuracy of 91% in a binary segmentation of artifically-drained and poorly-drained classes. Compared with an existing soil drainage map, the RF model …

    maynooth Repository record

  12. Mapping urban growth and investigating its potential impact on surface water quality in Chattanooga, Tennessee using GIS and remote sensing

    Hall, Jonah2020

    … GIS and remote sensing technologies based on Landsat 5 Thematic Mapper (TM) and Landsat 8 Operational Land Imager (OLI) acquired in 1986 and 2016, respectively. A model was developed utilizing the Normalized Difference Vegetation Index (NDVI) and a supervised image classification algorithm to …

    utc Repository record

  13. Identifying Data Centers from Satellite Imagery

    Buskirk, Adam2016

    … selection for these procedures using 79 Landsat 8 imagery scenes was constructed. A cellular evolutionary algorithm was then utilized for parameter selection by training and testing support vector machine classifiers using LIBSVM from this dataset utilizing classification accuracy as a …

    sdstate Repository record

  14. Estimating Impervious Surface Cover in Flathead County, Montana

    Skeen, James AndrewVirginia Tech2017

    … product (2011) in Flathead County, Montana. Four Landsat 8 images from 2015 and 2016 were used to characterize imperviousness. This multi-temporal analytical method was designed to reduce the spectral confusion between impervious surface and soil/agricultural lands. We compared the neural …

    vt Repository record

  15. Remote sensing of rapidly draining supraglacial lakes on the Greenland Ice Sheet

    Williamson, Andrew GrahamUniversity of Cambridge2018

    … “the FASTER algorithm”) to use with a combined Landsat 8 and Sentinel-2 satellite dataset. The FASTER algorithm is applied to a large, predominantly land-terminating region of west Greenland in summers 2016 and 2017 to track changes to lakes, identify rapidly draining lakes, and ascertain the …

    cambridge Repository record

  16. Remote sensing to characterise vegetation fuel moisture content in the UK uplands

    Badi, AH2026

    … Sentinel-2A MultiSpectral Instrument (MSI) and Landsat-8 Operational Land Imager (OLI) data to estimate and map FMC in upland areas of the UK. The work employs laboratory and field-scale measurements, and radiative transfer modelling, to test the relationships between reflectance and FMC. …

    salford Repository record

  17. Assessing the spatiotemporal variation of phytoplankton biomass in Nandoni reservoir in the Vhembe District (South Africa) using LANDSAT satellite imagery

    Muthivhi, Fulufhelo Faith2022

    … and chl–a concentration using readily available Landsat multispectral images. Multispectral resolution of (30 m) Landsat 7 ETM+ and Landsat 8 OLI images for June to December 2008 to 2020 were used to derive the distribution of chl–a concentration. The spatial distribution of chl–a concentration …

    venda Repository record

  18. Evaluación del estrés hídrico en caña de azúcar (Saccharum officinarum L.) durante la sequía de los años 2014 y 2015 en el corredor seco de los departamentos de Usulután y San Miguel, El Salvador

    Ayala Girón, Josué Omar2022

    … 2014 y 2015; a partir de imágenes satelitales LANDSAT 8, procesándolas mediante QGIS 3.10 y ArcGis 10.7.1. A través de la teledetección espacial con lo cual se determinó el Índice de Vegetación de Diferencia Normalizada (NDVI) y la Temperatura a la Superficie de la Tierra (LST) obteniendo con …

    u-elsalvador Repository record

  19. Remote Sensing of Hydrocarbon-induced Rock Alterations at Cement Field, Oklahoma

    Sun, Lei 1989-University of Houston2014

    … outcrops with surficial rock alterations from Landsat 8 and ASTER multispectral data, as well as Hyperion and Specim hyperspectral imagery. Published geologic maps and geochemical data were combined to show the geologic extent and various degrees of rock alterations. Petrographic analysis …

    houston Repository record

  20. Mapping Elaeagnus Umbellata on Coal Surface Mines using Multitemporal Landsat Imagery

    Oliphant, Adam J.Virginia Tech2015

    … 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 …

    vt Repository record

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