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Showing items 1 through 9 of 3.
  1. Library Resource
    Reports & Research
    December, 1998
    Burkina Faso

    Chapter 2 situates the scene by presenting the historical background to the research area. First, a brief outline of the research village's history is provided. The main part of the chapter is devoted to the elaboration of case material relating to a number of conflicts over land, along the border between the kingdom of Ratenga and the kombere of Piugtenga and in which the village of Ziinoogo has been involved.

  2. Library Resource
    Journal Articles & Books
    December, 2012
    Algeria, Burkina Faso, Nigeria, Mauritania, Mali, Ethiopia, Eritrea, Cameroon, South Sudan, Central African Republic, Senegal, Chad, Niger, Sudan

    Time series of vegetation indices (VI) derived from satellite imagery provide a consistent monitoring system for terrestrial plant productivity. They enable detection and quantification of gradual changes within the time frame covered, which are of crucial importance in global change studies, for example. However, VI time series typically contain a strong seasonal signal which complicates change detection. Commonly, trends are quantified using linear regression methods, while the effect of serial autocorrelation is remediated by temporal aggregation over bins having a fixed width.

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