A New Tool Helps Archaeologists Deal with an Old Question
GIS (Geographic Information Systems) technology is quickly changing the way archaeologists record where excavated artifacts are found on their digs. These spatial databases combine information collected from maps, GPS (Global Positioning Systems), site plans, photos and notes into a single geographic search engine that can easily retrieve anything that has been recorded about a particular artifact or feature from a site.
But GIS has also proven extremely useful in the field of archaeological survey, where scholars record and analyze ancient remains that are still visible on the surface. Whether a survey is collecting pottery sherds strewn across a field or mapping an entire Bronze Age mound, GIS allows archaeologists to combine everything they know about a survey area—site locations, topography, water sources, ancient roads and annual rainfall—into a single searchable database. From this GIS database, an archaeologist can then look for patterns in how certain types of sites are positioned in the landscape. Some village sites, for example, may cluster around rivers or roads to take advantage of trade networks, while other types of sites, such as forts, may consistently be positioned on hilltops for defensive purposes. Identifying such patterns of human behavior is one of the primary goals of archaeology.
Interested in the latest archaeological technology? Researchers at UCSD’s Calit2 laboratory recently released the free BAS eBook Cyber-Archaeology in the Holy Land — The Future of the Past, featuring the latest research on GPS, Light Detection and Ranging Laser Scanning, unmanned aerial drones, 3D artifact scans, CAVE visualization environments and much more.
Beyond the level of archaeological analysis, knowing the precise location of an archaeological site is becoming increasingly relevant in the rapidly developing world of the Middle East. From the Israel Antiquities Authority to the Iraqi Antiquities Department, governments are using GPS and GIS technologies to map and record every single site that is recorded through survey or excavation. With this information, authorities can then make decisions about where a new road should be placed without disturbing ancient remains, or how many sites might be threatened by constructing a new dam. Likewise, as the market for illicit antiquities increases globally, GIS is becoming a valuable tool for monitoring sites that are threatened by looting and destruction.
Originally published July 2012, updated May 2014.
Visit the BAS Archaeological Technology page for articles on the 21st-century archaeological toolkit.
Glenn J. Corbett is associate editor with the Biblical Archaeology Society. He received his Ph.D. in Near Eastern archaeology from the University of Chicago, where his research focused on the epigraphic and archaeological remains of pre-Islamic Arabia. Since 2005 he has directed the Wadi Hafir Petroglyph Survey in southern Jordan.
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