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I am looking for a data set on forest cover in The Gambia that meets the following conditions:

  • a high enough resolution (e.g. 30x30m)
  • a data set (i.e. classified satellite imagery data) on forest cover in The Gambia post-2010 and pre-2008.

I am looking to analyse the effect of a development project implemented between 2008 and 2010 in The Gambia. In order to control for differences in initial forest cover, I would like to find two data sets (from the indicated time periods) that follow the same classification scheme.

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Have a look at the global Forest Change cover From Hansen et al. They used Landsat 7 images from 2000 to 2013 to assess forest cover changes. Tiles can be downloaded from their website under creative common license.

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The FAO Global Forest Resources Assessment does not have map data, but does have a lot of aggregated data and trends on forests for each country in the world. The assessment and report is updated every 5 years: 2015, 2010, 2005, 2000, 1995, 1990, ...

http://www.fao.org/forestry/fra/en/

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