The Struve Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through 10 countries and over 2,820 km. These are points of a survey, carried out between 1816 ...

Recurring interplate megathrust earthquakes have occurred along the Nankai Trough subduction zone between the Philippine Sea plate and the Amur plate, and the next earthquake in this region is ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In 1912 the director of the Royal ...

On April 13, the National Geodetic Survey (NGS) held a webinar that described the classifications, accuracy standards and general specifications for GNSS geodetic control surveys using OPUS Projects.

On Sept. 16, the National Geodetic Survey (NGS) released the latest beta version of OPUS, called Beta OPUS Projects 5.0. This version of OPUS now accepts real-time kinematic data and post-processed ...