Essays about: "NDVI Time series"

Showing result 11 - 15 of 33 essays containing the words NDVI Time series.

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

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

    Abstract : 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. READ MORE

  3. 12. Tracing mangrove forest dynamics of Bangladesh using historical Landsat data

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

    Abstract : 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. READ MORE

  4. 13. Automated temporal NDVI analysis over the Middle East for the period 1982 - 2010

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Hristo Tomov; [2016]
    Keywords : trend analysis; NDVI Time series; satellite imagery; change detection; Physical Geography and Ecosystem analysis; GIS; PolyTrend; DBEST; R language; Middle East; Earth and Environmental Sciences;

    Abstract : The NDVI time-series consist of trend, season and noise. Changes in the season component are related to climate factors and they happen gradually over long period of time. The changes in the trend component are often due to human activities, fires and etc. READ MORE

  5. 14. Developing a web-based system to visualize vegetation trends by a nonlinear regression algorithm

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Yufei Wei; [2016]
    Keywords : PolyTrend; nonlinear regression algorithm; vegetation trends; Physical Geography and Ecosystem Analysis; NDVI; Web Development; Django; MATLAB; Python; Earth and Environmental Sciences;

    Abstract : Comparing with traditional linear regression methods that used to monitor vegetation trends, a nonlinear regression algorithm (PolyTrend) developed by Jamali et al. (2014) can provide more accurate information of vegetation trends by fitting a polynomial line with a degree of up to three for ASCII-formed time-series NDVI (Normalized Difference Vegetation Index) dataset of a single pixel. READ MORE

  6. 15. Detecting clear-cut deforestation using Landsat data : a time series analysis of remote sensing data in Covasna County, Romania between 2005 and 2015

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Tudor Buhalau; [2016]
    Keywords : Landsat; BFAST; Covasna; Physical Geography and Ecosystem Analysis; deforestation; time series; NDVI; NDMI; Earth and Environmental Sciences;

    Abstract : Forested areas represent a fundamental component of the environment. Deforestation and forest fragmentation represent a global issue mostly caused by human influence and Romania is not an exception. Nowadays forests cover approximately a third of Romania’s surface, meaning that the deforestation is a national issue. READ MORE