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 72 for “"Sentinel-2"”.
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Mezőgazdasági táblák talajheterogenitás vizsgálata Sentinel 2 NDVI adatok felhasználásával
… mentes, 10×10 méteres térbeli felbontású Sentinel 2 műholdfelvételből készítettem növényi vegetációs index (NDVI) képeket. A térinformatikai adatbázis adataiból „Attribute based clustering” modulját felhasználva 40x futtatott k-közép (k-mean) eljárással három csoportot (klasztert) …
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Remote sensing and GIS approaches for elaborating Sentinel-2 images: application on volcanic areas [Metodi di telerilevamento e GIS per l’elaborazione delle immagini Sentinel-2: applicazioni in aree vulcaniche]
… utilizzando le immagini multispettrali di Sentinel-2. L’approccio integra il toolbox PolyGrid per l’estrazione automatica degli affioramenti di roccia nuda con un insieme di rapporti di bande spettrali mirati a rilevare le variazioni negli stati di ossidazione del ferro, supportati da …
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Mapping Smallholder Forest Plantations in Andhra Pradesh, India using Multitemporal Harmonized Landsat Sentinel-2 S10 Data
… visible and near-infrared (VNIR) bands from the Sentinel-2 MultiSpectral Instruments (MSIs). Dependency on and scarcity of wood products have driven the deforestation and degradation of natural forests in Southeast Asia. At the same time, forest plantations have been established both within and …
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Comparison of spatial and spectral properties of Landsat-8 and Sentinel-2 data for mapping plant chlorophyll-a
… 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 in August 2017, …
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Resposta espectral da vegetação desidratada e valoresde NBR (Normalized Burn Ratio) obtidos via dados MSI Sentinel – 2 em regiões tropicais
… trabalho foi analisar através dos dados do MSI/Sentinel-2 a resposta espectral de alvos vegetados susceptíveis ao fogo é valores de NBR para regiões tropicais. Foram selecionadas cinco regiões em todo território nacional as quais contemplam - cana de açúcar, cerrado, campo cerrado/rupestre, …
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Study of spatiotemporal changes within the abandoned flotation plant site of Kirki (NE Greece) via clustering on Sentinel-2 data
… between 2015 and 2022. Thirty-one cloud-free Sentinel-2 acquisitions were processed to extract per-pixel reflectance time series from 458 active pixels distributed across seven tailings ponds and three near-pond zones. Each pixel's spectral signature was compared against a library of 13 …
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Developing a Satellite-Based Methodology to Estimate Built-up Biocapacity for Use in the National Ecological Footprint and Biocapacity Accounts: A Comparative Study of Pléiades Neo and Sentinel-2 Imagery, Classification Algorithms, and Segmentation Approaches
… from Pléiades Neo (1.2-meter resolution) and Sentinel-2 (10-meter resolution) provided the basis for classification into land cover categories. Identified land cover categories within the built-up fabric were transformed to biocapacity in gha by linking them to the NFBA land types and adapting …
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Optical remote sensing for agriculture monitoring: a quantitative assessment under local conditions
… leveraging the complementary strengths of the Sentinel-2 (high revisit frequency) and Landsat (extensive historical archive) satellite data. The methodology is supported by four scientific papers. Their thematic scope covers a) the development of models for estimating three crop biophysical …
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Mapping the maize growth period using multi-temporal sentinel 1 and 2 imagery: a case study in Kasisi area of Chongwe district.
… aimed to use Synthetic Aperture Radar (SAR) from Sentinel 1 and Optical imagery from Sentinel 2 multi spectral instrument (MSI) for mapping and monitoring Maize fields in the Kasisi area of Chongwe District, Zambia, from November, 2019 to April 2020. This was done by capturing the temporal …
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Mapping the maize growth period using multi-temporal sentinel 1 and 2 imagery: a case study in Kasisi area of Chongwe district.
… aimed to use Synthetic Aperture Radar (SAR) from Sentinel 1 and Optical imagery from Sentinel 2 multi spectral instrument (MSI) for mapping and monitoring Maize fields in the Kasisi area of Chongwe District, Zambia, from November, 2019 to April 2020. This was done by capturing the temporal …
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Marine macrophyte monitoringenabling scalability through remote sensing data and cloud computing
… la computación masiva en la nube de imágenes de Sentinel-2 para monitorizar praderas densas de fanerógamas marinas en aguas claras y el papel de la batimetría; y, por último, iii) el desarrollo de nuevas herramientas para monitorizar la calidad del agua y pequeñas praderas de fanerógamas marinas …
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Evaluation of New Zealand estuarine water properties using remote sensing
… flora and fauna. This thesis explores the use of Sentinel-2 remote sensing imagery to monitor water properties of shallow intertidal tidal estuaries, for the purposes of managing the estuaries of New Zealand. The first goal (Chapter 2) was to develop a method to remove the influence of water …
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Evaluación de la productividad de plantaciones en rodales de distintas edades de Pinus radiata D. Don mediante la obtención de índices de vegetación y clorofila en predios pertenecientes a Forestal Mininco SpA, Región del Maule, Chile
… derivados de sensores satelitales como Sentinel-2, emergen como una alternativa prometedora para el monitoreo no destructivo del crecimiento forestal, aunque su capacidad predictiva en rodales de distintas edades y bajo distintos manejos silvícolas no ha sido suficientemente evaluada en …
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Sentinel palydovinių duomenų analizės taikymas karo poveikiui aplinkai tirti /
… located in different war-affected areas. Using Sentinel 2 data, it examines the impact of direct hostilities on fields located in Zaporizhzhya, Luhansk and Kharkiv oblasts, where clashes and shelling are still ongoing. It also uses Sentinel 2, Sentinel 1 and historical weather data to …
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Algorithm development for characterizing coastal and inland aquatic environments using satellite remote sensing
… workflows. Conducted under the SIMBAD (Sentinel Imagery Multiband Analysis and Dissemination) R&D initiative at Quasar Science Resources, the research presented in this dissertation focuses on enhancing the application and operational capacity of Sentinel-2 imagery for monitoring …
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Improving the spatio-temporal characterisation of South Africa's dynamic coastal zone using hyper-temporal satellite imagery
… applied to medium resolution Landsat and Sentinel-2 time-series, this research produced three output datasets. The first is a 13-class coastal land cover map from Landsat 8 median composites. The second is a dataset tracking long-term, persistent changes over 30 years created from Landsat …
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Remote sensing of dynamics and aboveground biomass of seagrass in Tauranga Harbor (Bay of Plenty), New Zealand
… multi-spectral imagery from Landsat and Sentinel-2, and synthetic aperture radar (SAR) products from Sentinel-1, coupled with a range of machine learning (ML) and meta-heuristic optimization algorithms, to develop novel and advanced techniques for remote sensing of seagrass. The work used …
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Εκτίμηση της μετατόπισης του δασοορίου σε ορεινούς όγκους της Ελλάδας με χρονοσειρές πολυφασματικών δορυφορικών δεδομένων
… NDWI από τους δορυφόρους Landsat (2000–2024) και Sentinel-2 (2018–2024).Η μεθοδολογική προσέγγιση περιέλαβε (α) φωτοερμηνεία πυκνότητας κόμης, (β) χαρτογράφηση του δασοορίου σε τρεις χρονικές τομές και (γ) αυτόματο εντοπισμό του δασοορίου με τον αλγόριθμο Random Forest, ο οποίος εκπαιδεύτηκε σε …
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