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Visar resultat 21 - 25 av 91 uppsatser som matchar ovanstående sökkriterier.

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

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

   Sammanfattning : 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. LÄS MER

3. 22. Multitemporal Satellite Data for Monitoring Urbanization in Nanjing from 2001 to 2016

   Master-uppsats, KTH/Geoinformatik

   Författare :Zipan Cai; [2017]
   Nyckelord :Urbanization; Nanjing; Remote Sensing; GIS; Support Vector Machine; Post-Classification Comparison; Change Vector Analysis;

   Sammanfattning : Along with the increasing rate of urbanization takes place in the world, the population keeps shifting from rural to urban areas. China, as the country of the largest population, has the highest urban population growth in Asia, as well as the world. LÄS MER

4. 23. Fjärranalys av skogsskador efter stormen Gudrun : Skogens återhämtning efter den värsta stormen i modern tid

   M1-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper

   Författare :Jessica Nilsson; [2017]
   Nyckelord :image differencing; change detection; Gudrun; Landsat; forest; storm damage; förändringsanalys; Gudrun; Landsat; MLC; skog; stormskador;

   Sammanfattning : Den 8:e januari 2005 inträffade en av de mest förödande stormarna i Sveriges historia då hundratusentals blev strömlösa och sju personer miste livet. Stormen Gudrun drabbade centrala Götaland värst och uppemot nio årsavverkningar skog beräknas ha fällts i vissa områden. LÄS MER

5. 24. Tracing mangrove forest dynamics of Bangladesh using historical Landsat data

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Md Monirul Islam; [2017]
   Nyckelord :Bangladesh; Physical Geography and Ecosystem Analysis; Landsat; mangroves; change detection; time-series; NDVI; supervised classification; Earth and Environmental Sciences;

   Sammanfattning : Present, accurate, and reliable estimation of mangrove forests in Bangladesh is limited. Former estimation of mangroves extent and density has been more or less restricted to Sundarbans and do not represent the whole country. LÄS MER

7. 25. Paleoglaciological study of the Ahlmannryggen, Borgmassivet and Kirwanveggen nunatak ranges, Dronning Maud Land, East Antarctica, using WorldView imagery

   Master-uppsats,

   Författare :Elena Serra; [2017]
   Nyckelord :;

   Sammanfattning : Paleoglaciological reconstructions based on glacial geological and geomorphological evidence areused to constrain and test numerical models of ice sheet extent and dynamics. The MAGIC-DMLresearch project (“Mapping, Measuring and Modelling Antarctic Geomorphology and Ice Change, inDronning Maud Land”) is trying to reconstruct the timing and pattern of ice surface elevation changessince the mid-Pliocene across western Dronning Maud Land, East Antarctica. LÄS MER