Shailen Desai (Jet Propulsion Laboratory, California Insitute of Technology, USA); Robert Leben (University of Colorado, Boulder, USA)

We provide highlights from the Harvest Experiment over the last few years. The principal objective of the experiment is to rigorously validate the long-term altimetric record of global sea level, and its constituent measurements, using in situ data collected at the Harvest offshore platform and vcinity. Located off the coast of central California, Harvest was established as the NASA primary verification site for TOPEX/POSEIDON (T/P) prior to its launch in 1992. The experiment has provided accurate and continuous in-situ data for nearly 30 years, enabling unprecedented monitoring of the emerging climate record from T/P through Jason-3.