Proxy methods allow us to estimate ancient ocean temperatures but only if the method is calibrated using modern samples for which we measure the temperature. This is a proxy method using a sediment trap to collect planktonic foraminifera.
We put seismic monitoring instruments into 20 VA hospital buildings, connected with computers that analyze their data to determine rapidly the structural health of the buildings in the event of earthquakes.
Explains the long history of this series of satellites, from which we have obtained a wealth of information. Includes a summary of the scientific capabilities of the sensors each satellite carried, and describes what we can do with this information.