On the Quality of Real-Time Altimeter Gridded Fields: Comparison with In Situ Data
作者： Ananda Pascual , Christine Boone , Gilles Larnicol , Pierre-Yves Le Traon
关键词: Remote sensing 、 Shore 、 Tide gauge 、 Sea level 、 Altimeter 、 Meteorology 、 Quality (physics) 、 Physical oceanography 、 Operational oceanography 、 Environmental science 、 Ocean surface topography
摘要: Abstract The timeliness of satellite altimeter measurements has a significant effect on their value for operational oceanography. In this paper, an Observing System Experiment (OSE) approach is used to assess the quality real-time products, key issue robust monitoring and forecasting ocean state. addition, two improved geophysical corrections number missions that are combined in products also analyzed. tidal atmospheric have coastal areas (0–100 km from shore), comparison with tide gauge observations shows slightly better agreement gridded delayed-time sea level anomalies (SLAs) altimeters [Jason-1 European Remote Sensing Satellite-2 (ERS-2)/Envisat] using new (mean square differences percent variance 35.3%) than those four [Jason-1, ERS/Envisat, Ocean Topography (TOPEX)/Poseid...
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