From: Monitoring montane-subalpine forest ecotone in the Pyrenees through sequential forest inventories and Landsat imagery
Epochal composite
Employed images
Year of acquisition
Date of acquisition
1991
1989
July 17
July 7
1993
July 28
2002
2001
July 2
August 14
2005
June 11
2015
2014
July 22
August 10
2016
August 12