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| GlobalXplorer | |
|---|---|
| Name | GlobalXplorer |
| Founded | 2015 |
| Founders | Sarah Parcak |
| Headquarters | Boston, Massachusetts |
| Type | Nonprofit |
| Focus | Remote sensing, Cultural Heritage, Archaeology |
GlobalXplorer
GlobalXplorer is a crowdsourced satellite imagery platform for archaeological site detection and cultural heritage preservation. Launched to harness volunteer contributions to analyze high-resolution imagery from space agencies and commercial providers, it combines methods from remote sensing, citizen science, and heritage preservation. The project operates at the intersection of archaeological practice associated with institutions like University of Alabama at Birmingham, technological initiatives from organizations like Planet Labs and Maxar Technologies, and policy frameworks influenced by agencies such as UNESCO and ICOMOS.
GlobalXplorer recruits volunteers to inspect satellite imagery to identify potential archaeological features and looting. The platform uses imagery from providers including Landsat, Sentinel-2, WorldView-3, and archives like NASA Earth Observing System. Its approach parallels other citizen science projects such as Zooniverse and builds on precedents in remote archaeological surveys by researchers affiliated with University of Alabama and field projects led by scholars like Sarah Parcak. The initiative has sought to inform national authorities including Peru's Ministry of Culture, Egyptian Ministry of Antiquities, and multinational preservation efforts involving UNESCO World Heritage Centre.
The project was publicly unveiled following research and outreach by archaeologists and remote sensing specialists associated with University of Alabama at Birmingham and presentations at venues like TED conferences. Early pilot campaigns focused on regions with known looting pressures such as Peru, Egypt, and Syria. GlobalXplorer emerged amid broader trends in archaeological remote sensing exemplified by work published in journals associated with American Antiquity and presented at conferences like those of the Society for American Archaeology and the Archaeological Institute of America. Funding and institutional support involved collaborations with philanthropic entities and media partners, including production relationships with outlets such as BBC and PBS for outreach.
The platform's stated mission emphasizes detection, protection, and documentation of archaeological sites endangered by looting, development, and conflict. Objectives include generating geospatial datasets to assist heritage agencies such as Peruvian Ministry of Culture, Syrian Directorate-General of Antiquities and Museums, and national park systems; informing legal frameworks like heritage protection statutes enacted through bodies such as UNESCO; and supporting academic research by institutions including Boston University and University College London. It aims to mobilize public participation similar to civic science initiatives by organizations like Smithsonian Institution and National Geographic.
GlobalXplorer employs a pipeline combining satellite imagery analysis, machine-learning models, and human pattern recognition. Imagery sources have included sensors from Landsat, Sentinel-2, SPOT, and commercial arrays from Maxar Technologies and Planet Labs. Volunteers use web interfaces inspired by platforms like OpenStreetMap and contribute labels that train algorithms akin to convolutional neural networks developed in research centers such as MIT Computer Science and Artificial Intelligence Laboratory and Stanford University. Geospatial outputs integrate with Geographic Information System tools from vendors like Esri and open-source packages used by scholars at University of Cambridge and Princeton University. The methodology reflects interdisciplinary practices bridging archaeology associated with fieldwork sites like Çatalhöyük and remote sensing programs at University of Arizona.
Volunteer analyses have flagged hundreds of potential sites and looting events in regions including Peru, Egypt, and Bolivia. Some flagged locations prompted follow-up by national authorities and scholars from institutions such as Yale University, Columbia University, and University of Oxford. Media coverage by outlets like The New York Times, The Guardian, and Reuters raised public awareness about antiquities trafficking networks connected to markets in cities such as London and New York City. The project influenced scholarly debates documented at conferences like European Association of Archaeologists and contributed datasets used in publications in periodicals like Antiquity and Journal of Archaeological Science.
GlobalXplorer has collaborated with academic partners including University of Alabama at Birmingham, Boston University, University College London, and Yale University. Technical and data partnerships involved Planet Labs, Maxar Technologies, and research laboratories at MIT and Stanford University. Policy and heritage collaborations included engagements with UNESCO, ICOMOS, national ministries such as Peru's Ministry of Culture and Egyptian Ministry of Antiquities, and nonprofit organizations like Global Heritage Fund and World Monuments Fund. Media and outreach alliances involved broadcasters and publishers including TED, PBS, and National Geographic.
Critiques of the initiative have addressed concerns over site disclosure, data sovereignty, and the potential for aiding looters by publicizing site locations—issues debated in forums such as the Society for American Archaeology annual meeting and critiques published by scholars affiliated with University College London and Oxford University. Cultural property advocates from organizations like International Council of Museums and legal scholars citing conventions such as the 1954 Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict have argued for stricter controls on data sharing. Methodological critiques note biases discussed in literature from Stanford and MIT on machine learning generalizability, and debates persist over volunteer training fidelity compared with professional survey techniques used in projects at Çatalhöyük and Pompeii.