Abstract's details
Global Jason-2 Data Quality Assessment on the new Long Repeat Orbit
CoAuthors
Event: 2017 Ocean Surface Topography Science Team Meeting
Session: Regional and Global CAL/VAL for Assembling a Climate Data Record
Presentation type: Type Poster
Contribution: PDF file
Abstract:
After almost 9 years in orbit as a precise altimeter mission on two different repeat ground tracks, Jason-2 had early this year an interuption of its science mission from 17th May to early July 2017. In the following, it was moved to a long-repeat ground track. Though this orbit is less interesting for the tandem mission with Jason-3 to solve mesoscale oceanography, the mission can still provide valuable and usefull data for several applications.
Therefore, the objective of this study is to provide an overview of the global data quality of Jason-2 data on the new orbit. Firstly, the stability of the altimeter and radiometer parameters is carefully monitored and the system performances assessed. This consists in long-term monitoring of the parameters, as well as comparison to Jason-3 data, in order to assess the possible impact of the lower altitude (~-27km) on the altimeter data. Furthermore the impact of the new orbit on the sea-level perfomances is accurately analysed.
Therefore, the objective of this study is to provide an overview of the global data quality of Jason-2 data on the new orbit. Firstly, the stability of the altimeter and radiometer parameters is carefully monitored and the system performances assessed. This consists in long-term monitoring of the parameters, as well as comparison to Jason-3 data, in order to assess the possible impact of the lower altitude (~-27km) on the altimeter data. Furthermore the impact of the new orbit on the sea-level perfomances is accurately analysed.