= International Latitude Service
{wiki=International_Latitude_Service}
The International Latitude Service (ILS) is an international collaborative effort aimed at precise measurement and monitoring of the Earth's latitude changes. Established in the early 20th century, the ILS primarily focuses on tracking variations in latitude caused by factors such as tectonic activity, glacial rebound, and other geophysical processes. The service involves a network of observatories equipped with highly accurate astronomical instruments.
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