Tide gauges have been used to measure sea level for hundreds of years. These tide gauge data are useful in many different ways. Scientists use tide gauge data to validate the measurements from altimetry satellites that are used to estimate global sea level. Local fishing communities and other boat users need to be able to predict tides to safely use harbors. Most tide gauges consist of a float isolated from high-frequency wave motion by a stilling well, but acoustic, pressure, or microwave-based systems are also now in use. Recently the GPS community has started using reflected GPS signals to measure sea level. Here we describe how to measure sea level using a GPS receiver.
Last modified: 2019-12-26 16:24:59 America/Denver
The site was originally developed by the GPS Reflections Research Group at the University of Colorado (CU) using funding from NSF EAR1144221. It was built by Evan Pugh and Kristine Larson at CU and by the UNAVCO Education and Community Engagement Program.
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