The International Terrestrial Reference System (ITRS) describes procedures for creating reference frames suitable for use with measurements on or near the Earth's surface.
frame | E.T. the Extra-Terrestrial | terrestrial | Digital terrestrial television | Terrestrial animal | Terrestrial television | Common European Framework of Reference for Languages | terrestrial animal | terrestrial television | Janet Frame | Reference | Frame Relay | space frame | digital terrestrial television | A-frame | Space frame | Self-reference | reference | Pete Frame | frame story | Frame of reference | Frame | Fatal Frame | Digital terrestrial television in the United Kingdom | Digital terrestrial television in Australia | A Broken Frame | Wire-frame model | William Frame | Vouch by Reference | ''The Virgin and Child with Canon van der Paele'', Oil on wood, 141 x 176.5 cm (including frame), 1434-36. Groeningemuseum |