The Physical Oceanography Distributed Active Archive Center (PO.DAAC) is NASA’s data center responsible for data management and distribution of satellite oceanographic data, as well as providing support for its scientific user base. PO.DAAC’s data holdings relevant to Ocean Surface Topography include sea surface height and significant wave height from TOPEX/Poseidon, Jason-1, OSTM/Jason-2, SARAL/AltiKa and gravity measurements from GRACE. Our data holdings are constantly being updated to accommodate improved algorithms that evolve through time. New datasets include Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 4, a gridded Sea Surface Height Anomaly dataset and altimetric assimilated hydrology output.

To assist in serving out the numerous datasets at PO.DAAC, various tools and services are available with improvements from last year. The State of the Ocean (SOTO) visualizer has been undated with an extended time series and face lift. PO.DAAC 101 tutorial YouTube videos are available on how to use the web portal and OPeNDAP.