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Showing result 21 - 25 of 425 essays matching the above criteria.

  1. 21. DEVELOPING METHODS FOR WATER QUALITY MEASUREMENT : Using machine learning and remote sensing to predict absorbance with multispectral imaging

    University essay from Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Author : Ola Bratt; [2023]
    Keywords : Remote Sensing; Multivariate Analysis; Machine Learning; GIS; Spectroscopy; Spectral imaging; Multispectral imaging; Water Quality;

    Abstract : Water resources play an important role in society and fulfill various functions such as providing drinking water, supporting industrial production and enhancing the overall landscape. Water bodies, such as rivers and lakes, are particularly important in this context. READ MORE

  3. 22. Using forest reflectance modelling to estimate albedo for narrow-view satellites

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap; Lunds universitet/Fysiska institutionen

    Author : Nick Bergmans; [2023]
    Keywords : satellite; remote sensing; albedo; surface reflectance; vegetation; forest; machine learning; albedo estimation; Earth and Environmental Sciences;

    Abstract : Surface albedo estimations from remote sensing are invaluable for energy balance descrip- tions in climate research. The aim of this work is to evaluate the possibility of using Sentinel-2 satellite data to get the total albedo of a small, vegetated area. READ MORE

  4. 23. Seasonal variation of LAI in Swedish coniferous forest

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Ilia Mastepanov; [2023]
    Keywords : leaf area index; LAI; PAR; forest; coniferous forest; Hyltemossa; Earth and Environmental Sciences;

    Abstract : Leaf Area Index (LAI) is quantity representing the amount of foliage in the canopy, which makes it an important parameter for analysing terrestrial ecosystems. Traditional methods of measuring LAI were done by analysing hemispherical photographs by hand and were very time consuming, requiring specific weather conditions (Jonckheere et al. 2004). READ MORE

  5. 24. Performance Estimation of a 1D pulsed LiDAR : A Study of SiPM-Based LiDAR in Ambient Light

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Author : Joel Rune; [2023]
    Keywords : LiDAR; SiPM; SPAD; Ambient light; LiDAR; Kisel-fotomultiplikator; SPAD; Bakgrundsljus;

    Abstract : LiDAR is a remote sensing technology that uses a laser to map the surrounding environment. With its many applications, for example in autonomous vehicles, LiDAR is a growing field within technology and research. The silicon photomultiplier (SiPM) is a solid state device commonly used in the receiving system of a LiDAR. READ MORE

  6. 25. Investigating the response of terrestrial evapotranspiration to droughts in Africa : A combined remote sensing and modeling approach

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Yang Foo; [2023]
    Keywords : earth observation; terrestrial evapotranspiration; drought; vegetation-climate interactions;

    Abstract : Climate change is posing a significant threat to terrestrial ecosystems worldwide, in part due to the more frequent occurrence of extreme climatic events such as droughts. While the importance of drought impacts on vegetation has been widely recognized, the time-dependent characteristics of drought-induced response remain insufficiently understood. READ MORE