Louise Rayne

Understanding what led to desertification in the long-term is crucial for adaptation to climate change and pressures on resources in North Africa, but existing maps do not accurately show the extent of degraded land or the traditional water systems which underpinned cultivation. These products rely on recent vegetation trends and hindcasted statistical data. Desertification which occurred prior to the later twentieth century is poorly represented, if at all. However, large areas of abandoned fields are distinctive in satellite imagery as brightly reflectant and smooth surfaces. We present a new and open-source machine-learning workflow for detecting desertification using satellite data. We used Google Earth Engine and the random forest algorithm to classify five landcover categories including a class representing desertified fields. The input datasets comprised training polygons, a 12-band Sentinel-2 composite and derived tasselled cap components, and a Sentinel-1 VV-polarisation composite. We test our approach for a case study of Skoura oasis in southern Morocco with a resulting accuracy of 74–76% for the desertification class. We used image interpretation and archaeological survey to map the traditional irrigation systems which supply the oasis.

This article describes the research questions and presents the initial AMS dates of the Middle Draa Project (southern Morocco), a collaborative field survey project between the University of Leicester and the Institut National des Sciences de l' Archéologie et du Patrimoine (INSAP) of Morocco. Starting from a very low baseline of past archaeological research in this pre-desert valley, the overall objective of the project is to establish the extent, character and chronology of the rich archaeology of the Wadi Draa. The results presented here detail a hitherto unknown phase of major occupation in the Draa in the 4th-6th centuries AD evidenced by complex hilltop settlements and extensive cairn cemeteries (an initial typology is presented). A second medieval phase comprised major urban centres that are contemporary with the Almoravid and Almohad periods of Moroccan history. Alongside these urban centres, there are the remains of substantial mudbrick oasis settlements and irrigation and field-systems of a contemporary date. A key contribution of this paper concerns the construction of an outline chronology based upon initial analysis of the ceramics collected , but crucially supplemented and supported by a major program of AMS dating. The remote sensing and field survey data collected by the project enable us to develop some hypotheses concerning the long-term history of this important oasis valley. Keywords Protohistory – Islamic archaeology – landscape archaeology – radiocarbon dating – irrigation

The EAMENA (Endangered Archaeology of the Middle East and North Africa) project is a collaboration between the Universities of Leicester, Oxford and Durham; it is funded by the Arcadia Fund and the Cultural Protection Fund. This paper explores the development of the EAMENA methodology, and discusses some of the problems of working across such a broad region. We discuss two main case studies: the World Heritage site of Cyrene illustrates how the project can use satellite imagery (dating from the 1960s to 2017), in conjunction with published data to create a detailed set of database records for a single site and, in particular, highlights the impact of modern urban expansion across the region. Conversely, the Homs Cairns case study demonstrates how the EAMENA methodology also works at an extensive scale, and integrates image interpretation (using imagery dating from the 1960s to 2016), landuse mapping and field survey (2007–2010) to record and analyse the condition of hundreds of features across a small study region. This study emphasises the impact of modern agricultural and land clearing activities. Ultimately, this paper assesses the effectiveness of the EAMENA approach, evaluating its potential success against projects using crowd-sourcing and automation for recording archaeological sites, and seeks to determine the most appropriate methods to use to document sites and assess disturbances and threats across such a vast and diverse area.

Abstract: This project uses satellite imagery and historic aerial photographs to discover and interpret archaeological sites. It has created an open access database of archaeological records that provides basic information so that the sites can be better under- stood and preserved in the future. The threats to sites in the Middle East and North Africa are increasing and creating a record of previously unrecorded sites using this methodology may be our the last chance before they are destroyed.
Keywords: Endangered archaeology, Satellite imagery, Middle East, North Africa

This project uses satellite imagery and historic air photographs to discover and interpret archaeological sites. It has created an open access database of archaeological records that provides basic information so that the sites can be better understood and preserved in the future. The threats to sites in the Middle East and North Africa are increasing and creating a record of previously unrecorded sites using this methodology may be our last chance before they are destroyed.

Bewley, R., Wilson, A. I., Kennedy, D., Mattingly, D., Banks, R., Bishop, M., Bradbury, J., Cunliffe, E., Fradley, M., Jennings, R., Mason, R., Rayne, L., Sterry, M., Sheldrick, N., and Zerbini, A. (2016). 'Endangered Archaeology in the Middle East and North Africa: Introducing the EAMENA Project', in S. Campana, R. Scopigno, G. Carpentiero, and M. Cirillo (eds), CAA2015. Keep the Revolution Going: Proceedings of the 43rd Annual Conference on Computer Applications and Quantitative Methods in Archaeology (Archaeopress Archaeology). Oxford, 919–32.

Human niche construction emphasizes the capacity of organisms to modify their
environment and thereby influence their own and other species’ evolution. For the hydraulic
landscapes of southern Mesopotamia we employ geoarchaeological data, remote sensing and
ancient texts to suggest that major irrigation systems in the central Mesopotamian plains were
a form of herringbone system and that they developed through human niche construction as a
result of the elaboration of crevasse splays along raised levees. The remarkable duration of
these systems (some 4000 plus years) suggest that (a) they were sustainable over many
millennia and (b) the short component canals could be managed by small lineages. However,
equally they could be brought under the administration of the state.

We present a novel approach that uses remote sensing to record and reconstruct traces of ancient water management throughout the whole region of Northern Mesopotamia, an area where modern agriculture and warfare has had a severe impact on the survival of archaeological remains and their visibility in modern satellite imagery. However, analysis and interpretation of declassified stereoscopic spy satellite data from the 1960s and early 1970s revealed traces of ancient water management systems. We processed satellite imagery to facilitate image interpretation and used photogrammetry to reconstruct hydraulic pathways. Our results represent the first comprehensive map of water management features across the entirety of Northern Mesopotamia for the period ca. 1200 BC to AD 1500. In particular, this shows that irrigation was widespread throughout the region in the Early Islamic period, including within the zone traditionally regarded as "rain-fed". However, we found that a high proportion of the ancient canal systems had been damaged or destroyed by 20th century changes to agricultural practices and land use. Given this, there is an urgent need to record these rapidly vanishing water management systems that were an integral part of the ancient agricultural landscape and that underpinned powerful states.

This article describes the research questions and presents the initial AMS dates of the Middle Draa Project (southern Morocco), a collaborative field survey project between the University of Leicester and the Institut National des Sciences de l' Archéologie et du Patrimoine (INSAP) of Morocco. Starting from a very low baseline of past archaeological research in this pre-desert valley, the overall objective of the project is to establish the extent, character and chronology of the rich archaeology of the Wadi Draa. The results presented here detail a hitherto unknown phase of major occupation in the Draa in the 4th-6th centuries AD evidenced by complex hilltop settlements and extensive cairn cemeteries (an initial typology is presented). A second medieval phase comprised major urban centres that are contemporary with the Almoravid and Almohad periods of Moroccan history. Alongside these urban centres, there are the remains of substantial mudbrick oasis settlements and irrigation and field-systems of a contemporary date. A key contribution of this paper concerns the construction of an outline chronology based upon initial analysis of the ceramics collected , but crucially supplemented and supported by a major program of AMS dating. The remote sensing and field survey data collected by the project enable us to develop some hypotheses concerning the long-term history of this important oasis valley. Keywords Protohistory – Islamic archaeology – landscape archaeology – radiocarbon dating – irrigation Résumé Cet article présente le cadre du projet de reconnaissance inti-tulé " Middle Draa Project " (dans le sud du Maroc) et en donne les premières datations radiocarbones. Ce projet fait l'objet d'une collaboration entre l'

Libya's archaeological heritage is under serious threat, not only because of recent conflict, but also due to other factors such as urban expansion, agricultural development, natural resource prospection, vandalism, looting and natural deterioration. The Endangered Archaeology in the Middle East and North Africa Project (EAMENA) has developed a database and methodology using remote sensing and other techniques to rapidly document archaeological sites and any disturbances and threats to them in Libya and across the MENA region. This paper will demonstrate this methodology and highlight the various types of disturbances and threats affecting the archaeology of Libya, concentrating on four case studies in different areas of the country, including the coastal plain around Zliten, a section of the Wadi Sofeggin in the pre-desert, and the desert oases of Jufra and Murzuq.