Imagine a space tool so revolutionary it can determine the impact of climate change, monitor the melting of glaciers, discover invisible waves, predict the strength of hurricanes, conserve fish stocks ...

See what Hidden Alpha includes, from alerts and portfolios to research access and any community or member features.

For over a decade ESA has used satellites to bounce radar pulses off the Earth and precisely measure the height of ocean and land surfaces. But inland lakes and rivers have been effective blind spots ...

Satellites provide effective and efficient observations of the Earth, especially in hard-to-reach locations, like rivers and lakes in remote areas — but could they offer more comprehensive information ...

Climate researchers say global sea level is rising at an accelerating rate, contrary to previous research suggesting a stable rate. Sea level rise is a combination of water expanding as sea water ...

Altimetry measurement refers to quantitative methods for determining elevation or height relative to a reference surface, typically using active or passive remote sensing techniques. In geophysical ...