New network of virtual altimetry stations for measuring sea level along the world coastlines ...

• Main Authors: Cazenave, Anny, Gouzenes, Yvan, Lancelot, Leclercq, Birol, Florence, Legér, Fabien, Passaro, Marcello, Calafat, Francisco M, Shaw, Andrew, Niño, Fernando, Legeais, Jean François, Oelsmann, Julius, Benveniste, Jérôme
• Format: Dataset
• Language: unknown
• Published: SEANOE 2024
• Subjects: Satellite altimetry; coastal sea level; coastal sea level trends; Northeast Atlantic
• Online Access: https://dx.doi.org/10.17882/74354; https://www.seanoe.org/data/00631/74354/

Until recently, classical radar altimetry could not provide reliable sea level data within 10 km to the coast. However dedicated reprocessing of radar waveform together with geophysical corrections adapted for the coastal regions now allows to fill this gap at a large number of coastal sites. In the context of the Climate Change Initiative Sea Level project of the European Space Agency, we have recently performed a complete reprocessing of high resolution (20 Hz, i.e., 350m) along-track altimetry data of the Jason-1, Jason-2 and Jason-3 missions over January 2002 to June 2021 along the coastal zones of Northeast Atlantic, Mediterranean Sea, whole African continent, North Indian Ocean, Southeast Asia, Australia and North and South America. This reprocessing has provided valid sea level data in the 0-20 km band from the coast. A total of 1189 altimetry-based virtual coastal stations have been selected and sea level anomalies time series together with associated coastal sea level trends have been computed over ...