Altimetric measurements

Altimetric measurements involve determining the height or elevation of a point on Earth's surface or the sea surface relative to a fixed reference, typically sea level. Using techniques such as satellite radar or laser altimeters, these measurements send signals that bounce back from the surface, and the time it takes for the signal to return helps calculate the distance. This data is crucial for mapping topography, monitoring sea level changes, and understanding land elevation for scientific, navigational, and environmental purposes. Altimetry provides precise, large-scale elevation information essential for studying Earth's dynamic systems.