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Specific processing

For open ocean, the treatment of the signal and the corrections to be applied are well known and the height measurements of the surface are very precise. Near coasts and for inland waters, the precision decreases, mainly due to models and corrections not well adapted and also due to echo signals which are modified by the presence of land. However measurements are present and contain useful information. To get closer to the coasts or over continental water bodies with a better coverage and  data with good  quality, waveform perturbations have to be analysed, retrackers have to be specialized, threshold have to be modified, correction have to be adapted.

Processing for Coastal and Hydrology products (PISTACH)
Pistach products encompass Coastal and Hydrology products : Jason-2 along-track Level-2 (global areas) and Level-3 (few areas). The input consists of Jason-2 Level 2 S-IGDR altimeter products. The products include new retracking solutions, several state-of-the-art geophysical corrections as well as higher resolution global/local models.
Processing X-TRACK
The CTOH computes regional along-track sea level anomaly (SLA) products for several altimeter missions. Processing includes parameters from the GDR products plus additional state-of-the-art corrections distributed by the CTOH. See details on the data processing.
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