Sökning: "drought index"

Visar resultat 21 - 25 av 45 uppsatser innehållade orden drought index.

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

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

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

    Sammanfattning : 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. LÄS MER

  3. 22. Insuring Kenyan Smallholder Farmers Against Drought: Does Livestock Index-Based Insurance Increase Climate Resilience?

    Master-uppsats, Lunds universitet/Ekonomisk-historiska institutionen

    Författare :Lea Kauffmann - de Vries; [2018]
    Nyckelord :index insurance; microinsurance; livestock insurance; climate risk management; NDVI; Business and Economics;

    Sammanfattning : While index insurance has received increased attention as an instrument for adaptation to climate change, evidence supporting its effectiveness remains limited. This thesis explores the potential of normalized difference vegetation index (NDVI) based livestock index insurance in Northern Kenya to help small-scale farmers to manage climate change risks in the event of livestock-reducing drought. LÄS MER

  4. 23. HYDROLOGICAL DROUGHTS IN SWEDEN: Mapping of historical droughts and identificationof primary driving climate variables andcatchment properties

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Hugo Rudebeck; [2018]
    Nyckelord :hydrological droughts; drought propagation; drought indices; SSI; threshold index; SPI; catchment properties and drought events; hydrologisk torka; propagering av torrperioder; torkindex; SSI; tröskelvärdes index; SPI; avrinningsområdesegenskaper och torrperioder;

    Sammanfattning : This study investigated the relationship between hydrological, and to some extent, meteorological droughts, and meteorological variables and catchment characteristics in 235 Swedish catchments between 1983 and 2013. This was done in order to investigate what factors affect the drought sensitivity in Swedish catchments and to map the occurrence of droughts in Sweden between 1983 and 2013. LÄS MER

  5. 24. How does drought affect child health outcomes in Zimbabwe? : an econometric analysis

    Master-uppsats, SLU/Dept. of Economics

    Författare :Lovisa Källmark; [2018]
    Nyckelord :Zimbabwe; height-for-age; drought; standardized precipitation evapotranspiration index; human capital;

    Sammanfattning : This thesis contributes to the broader economic literature on income shocks and child health outcomes. Child health outcomes are known to be an important factor in determining the overall health, school results and productivity later on in life as an adult. LÄS MER

  7. 25. Monitoring trends of greenness and LULC (land use/land cover) change in Addis Ababa and its surrounding using MODIS time-series and LANDSAT Data

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

    Författare :Tesfaye Gebeyehu Admasu; [2017]
    Nyckelord :Time-series; MODIS; Addis Ababa; Physical Geography and Ecosystem Science; NDVI; Greenness; LULC; GEM; Earth and Environmental Sciences;

    Sammanfattning : NDVI(Normalized Difference Vegetation Index) was introduced in 1974. Despite its limitations, it has been under use for monitoring bio-physical and cultural landscapes from satellite. LÄS MER