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- Title
Cloud Cover and Satellite Images of Deforestation.
- Authors
Butler, J. S.; Moser, Christine
- Abstract
Most studies of deforestation rely on land-cover data interpreted from satellite images. However, it is often difficult, particularly in moist forest areas, to obtain cloud-free images. Dropping or imputing missing values from satellite data relies on the assumption of independence of irrelevant alternatives (IIA), which implies that clouds are independent of the occurrence of forests. We test whether IIA holds for the case of Madagascar. We reject IIA for the amount of forest lost, demonstrating that estimates of deforestation and studies that use deforestation data from satellite images could potentially be biased without the proper corrections for cloud cover.
- Subjects
MADAGASCAR; DEFORESTATION; SPACE surveillance; ENVIRONMENTAL degradation; LAND clearing; REMOTE-sensing images; AERIAL photographs; CLEARCUTTING; FOREST degradation
- Publication
Land Economics, 2007, Vol 83, Issue 2, p166
- ISSN
0023-7639
- Publication type
Article
- DOI
10.3368/le.83.2.166