Essays about: "Normalised Difference Vegetation Index NDVI"

Showing result 1 - 5 of 9 essays containing the words Normalised Difference Vegetation Index NDVI.

  1. 1. Impact from Tourism on Vegetation Greenness in Yellowstone National Park

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Fenja Runfors; [2023]
    Keywords : Yellowstone National Park; NDVI; Remote Sensing; Tourism; Earth and Environmental Sciences;

    Abstract : Tourism has increased drastically during the last decades in Yellowstone National Park, from nearly 20 000 visitors in 1910 to almost five million visitors in 2021. Yellowstone is an important ecosystem with unique wildlife, and geological and cultural history. READ MORE

  3. 2. Spatial downscaling of gridded soil moisture products using optical and thermal satellite data: the effects of using different vegetation indices

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Tómas Halldórsson Alexander; [2023]
    Keywords : Physical Geography and Ecosystem Analysis; Remote Sensing; Soil moisture; Downscaling; Vegetation index; Earth and Environmental Sciences;

    Abstract : Soil moisture (SM) plays an important role in the exchange of heat and water between the surface and atmosphere, impacting water and energy cycles and the climate. Satellite remote sensing offers a global-scale estimation of SM; however, the coarse resolutions of satellite SM products, typically ranging from 25-50 km, are unsuitable for regional analysis. READ MORE

  4. 3. Evaluating forest wildfire effect on tree increment patterns for boreonemoral forests in Sweden: A pilot study using remote sensing

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Joanna Eaton; [2022]
    Keywords : Physical Geography and Ecosystem analysis; Remote sensing; Sentinel-2A; Forest wildfires; dNBR; NDVI; dNDVI; Dendrochronology; Atmospheric science and biogeochemical cycles; Earth and Environmental Sciences;

    Abstract : The release of anthropogenic greenhouse gases (GHGs) has substantially increased the global mean surface air temperature. Increases in global mean surface air temperature will lead to warmer and drier conditions, promoting more frequent, long-lasting, intense forest wildfires. READ MORE

  5. 4. A global analysis on impact of conflicts on long-term greening trends

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Mathias Welp; [2020]
    Keywords : NDVI; Conflicts; UCDP; GIMMS; Google Earth Engine; Physical Geography; Ecosystem Science; Earth and Environmental Sciences;

    Abstract : Armed conflicts were and are still shaping the global terrestrial land surface and can have severe direct and indirect impacts on societies, economies and the environment. This study attempts to assess the impact of armed conflicts on vegetation on global and regional scale. READ MORE

  6. 5. Analysing the vegetation condition during the 2017 and 2018 growing seasons using indices derived from Sentinel-2 data : a case study over southern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Camilla Persson; [2019]
    Keywords : Physical Geography and Ecosystem analysis; remote sensing; vegetation indices; drought; Geomatics; Earth and Environmental Sciences;

    Abstract : The summer of 2017 was climatically close to normal in southern Sweden, whereas the following summer was unusually warm and dry. These two years therefore make an interesting case study for investigating the impact of severe drought on vegetation, particularly when considering that climate change is predicted to lead to an increased frequency of drought events in the study area. READ MORE