Essays about: "Remotely Sensed Data"

Showing result 21 - 25 of 49 essays containing the words Remotely Sensed Data.

  1. 21. Mapping tree canopy cover in the semi-arid Sahel using satellite remote sensing and Google Earth imagery

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Abdalla Eltayeb Abdalla Mohamed; [2017]
    Keywords : Sahel; physical geography and ecosystem analysis; tree cover; NDVI; Google Earth; Landsat 8; geomatics; Earth and Environmental Sciences;

    Abstract : Tree vegetation is an essential element in the daily life of the people in the Sahel region of Africa. It is also considered as a robust indicator of the Sahel ecosystem status and health. In this thesis, a method to estimate tree vegetation was developed and used in mapping the tree canopy cover in semi-arid Sahel. READ MORE

  3. 22. Evaluating Multitemporal Sentinel-2 data for Forest Mapping using Random Forest

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Marc Nelson; [2017]
    Keywords : Forest classification; multitemporal; sentinel-2; sentinel 2; classification; forest; random forest; machine learning; cadasterENV; sweden; remote sensing; GIS; geomatics; land cover;

    Abstract : The mapping of land cover using remotely sensed data is most effective when a robust classification method is employed. Random forest is a modern machine learning algorithm that has recently gained interest in the field of remote sensing due to its non-parametric nature, which may be better suited to handle complex, high-dimensional data than conventional techniques. READ MORE

  4. 23. Integrating remotely sensed hydrologic parameters into an index of sediment connectivity

    University essay from KTH/Mark- och vattenteknik

    Author : Anna-Klara Almer; [2017]
    Keywords : Flooding; road infrastructure; soil moisture; remote sensing; sediment connectivity;

    Abstract : The expected increase in precipitation and temperature in Scandinavia, and especially short-time heavy precipitation, will increase the frequency of flooding. Urban areas are the most vulnerable, and specifically, the road infrastructure. READ MORE

  5. 24. Land Surface Phenology as an indicator of performance of conservation policies like Natura2000

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Gunjan Sharma; [2016]
    Keywords : MODIS NDVI; Natura2000; Land Surface Phenology LSP ; ecological indicators; TIMESAT; trend analysis; GEM; Earth and Environmental Sciences;

    Abstract : Considering the growing pressure on various ecosystems all around the world, the development of ecological indicators for assessing the health and condition of the ecosystems has become an integral part of environmental management and policy making efforts. Such indicators do not only simplify the complex ecosystem processes but can also act as a measure of performance of a conservation policy. READ MORE

  6. 25. Evaluation of pixel based and object based classification methods for land cover mapping with high spatial resolution satellite imagery, in the Amazonas, Brazil

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Linnea Jonsson; [2015]
    Keywords : support vector machine; maximum likelihood; SPOT-5; classification; geography; physical geography; RBF-kernel; OBIA; multiresolution segmentation; Earth and Environmental Sciences;

    Abstract : In the state of Acre, Brazil, there is ongoing land use change, where inhabitants of this part of the Amazonian rainforest practice shifting agriculture. Practicing this type of agriculture is, according to the SKY Rainforest Rescue organization, damaging to forest ecosystems. READ MORE