Consolidating sea level acceleration estimates from satellite altimetry

More than 27 years of high precision satellite altimetry enables analysis recent changes in global mean sea level (GMSL). Several previous studies present estimates the trend and acceleration GMSL; however, all are exclusively performed with data from TOPEX/Poseidon, Jason-1, Jason-2 Jason-3 missions (TPJ data). In this study we extend record both time space by including independent ERS-1, ERS-2, Envisat CryoSat-2 (ESA This increases time-series to span more (1991.7–2019.0) spatial coverage is extended ± 66° 82° latitude. Another advantage ESA that it issues associated TOPEX altimeter which introduce a significant uncertainty first part record. GMSL based on 1991–2019 period within latitude exhibit an 0.095 0.009 mm/yr2. The corresponding value for TPJ 0.080 0.008 mm/yr2 1993–2019 ERS-1 was launched shortly after large Pinatubo eruption 1991. observes decrease 6 mm during 1.7 until launch TOPEX/Poseidon. distribution across ocean highly similar between dataset. Pacific Ocean regional patterns seem related El-Niño Southern Oscillation (ENSO) whereas around Greenland clear negative seen.