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Showing result 11 - 15 of 20 essays matching the above criteria.

  1. 11. Inter-annual memory effects between soil moisture and NDVI in the Sahel

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Yang Zhou; [2013]
    Keywords : Physical Geography and Ecosystem Science; GEM; memory effect; soil moisture; Sahel; rainfall; land cover; soil type; remote sensing; Earth and Environmental Sciences;

    Abstract : The Sahel lies in the semi-arid zone of North Africa between the Sahara Desert to the north and the savannas and rainforest to the south. In the Sahel, the variability of vegetation growth is predominately controlled by moisture reception in the concurrent rainy season. READ MORE

  3. 12. Variations and correlations among climatic and environmental variables in Australia using GIS and remote sensing

    University essay from Institutionen för naturgeografi och kvartärgeologi (INK)

    Author : Robert Hellmark; [2013]
    Keywords : ;

    Abstract : This study was performed because of the potential vulnerability to climate change of the Australian continent. For example, global warming may increase the frequency and severity of drought [McAlpine, C.A., Syktus, J. READ MORE

  4. 13. Assessment of spatio-temporal patterns of NDVI in response to precipitation using NOAA-AVHRR rainfall estimate and NDVI data from 1996-2008, Ethiopia

    University essay from Institutionen för naturgeografi och kvartärgeologi (INK)

    Author : Getahun Tadesse Kabthimer; [2012]
    Keywords : NOAA AVHRR; NDVI; rainfall estimates; land cover classes.;

    Abstract : The role of remote sensing data for monitoring different parameters in the study of ecosystems has been increasing. Particularly the development of different indices has played a great role to study the properties of vegetation and vegetation dynamics in large countries. READ MORE

  5. 14. MODIS NDVI satellite data for assessing drought in Somalia during the period 2000-2011

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Mohammed Alwesabi; [2012]
    Keywords : remote sensing; vegetation index; drought; Somalia; geography; physical geography; Earth and Environmental Sciences;

    Abstract : This thesis studied the drought monitoring and assessing in Somalia environment during the period 2000-2011 with more details about the drought in 2010- 2011. Time series analysis of remote sensing data as well as rainfall data were used to achieve the aim of the study. READ MORE

  6. 15. Mauritania and Senegal coastal area urbanization, ground water flood risk in Nouakchott and Land use/land cover change in Mbour area

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Adama Ouattara; [2011]
    Keywords : geography; physical geography; urban area expansion; coastal area; population; ground water flood; land cover land use; normalized difference vegetation index; geographical information system; remote sensing.; Earth and Environmental Sciences;

    Abstract : Urbanization has increased significantly in Mauritania and Senegal during the last decades since the countries gained independence. In both countries most of the important cities are located in their coastal area. Cities inherited from the colonial period expand both in size and inhabitants. READ MORE