Archaeologists have utilized LIDAR technology to explore Calakmul, a vast urban area located in southern Mexico. By employing Light Detection and Ranging (LIDAR), scientists have been able to remove the dense rainforest cover and uncover the remnants of an ancient Mayan city, which is nearly twice the size of the City of Vancouver.
LIDAR, short for "Light Detection and Ranging," is a technology that allows researchers to examine the Earth's surface. This technology employs pulsed laser beams to measure variable distances, generating precise three-dimensional data about the Earth's shape and surface characteristics. By combining these laser pulses with other recorded information collected by airborne systems, LIDAR offers valuable insights into the examined area's topography.
The capabilities of LIDAR are remarkable. Kathryn Reese-Taylor, a professor at the University of Calgary, states, "You can be trying to survey and map sites in the rainforest, and what would take you years to accomplish, LIDAR can do in a couple of days of flying over these large areas."
The University of Calgary reports that an international team of researchers conducted a comprehensive LIDAR survey spanning over 36 square miles of forest canopy in southeastern Mexico, specifically in the Calakmul region. Calakmul served as a Mayan capital between approximately A.D. 635 and 850.
The survey findings unveiled an expansive urban settlement featuring extensive residential compounds concentrated around temples, shrines, and potentially marketplaces. The inhabitants of Calakmul relied on an advanced agricultural system supported by canals, terraces, walls, and dams. At its peak around A.D. 700, Calakmul was one of the largest cities in the Americas.
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The hexagonal cloud pattern at Saturn's north pole as seen by the Cassini spacecraft. Each side of the hexagon is about 14,500 km (9,000 miles), larger than the Earth's diameter. Credit: NASA/JPL-Caltech/SSI/CICLOPS/Kevin M. Gill
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