How often are the global mean sea level estimates updated?
We update the sea level data approximately bimonthly (every two months). The altimeter data are released by NASA/CNES as a 10-day group of files corresponding to the satellite track repeat cycle (10 days). There is also a two-month delay between the time the data are collected on the satellite to their final product generation (known as a final geophysical data record (GDR)). We use these final GDR products in the global mean sea level estimates. We are planning to shorten the time between our global mean sea level updates.