Figure 8
From: Detecting desertification in the ancient oases of southern Morocco
(a) Line of khettara shafts on the ground. (b) Line of shaft revitalised with concrete. (c) Water flowing from outlet lined with concrete. (d) Imagery showing stages of revitalisation of khettera. Photographs taken by Makovics and Rayne November–December 2022. Google Earth Pro map data: 2016 CNES/Maxar Technologies, 2017 MAXAR Technologies, 2018 MAXAR Technologies https://www.google.com/intl/en_uk/earth/versions/#earth-pro. Image prepared using GIMP 2.10.34 https://www.gimp.org/.
