DATA CHALLENGE OSE - 2021a_SSH_mapping_OSE
Type of dataset: Level-3 (nadir along-track) and Level-4 (gridded) altimetry products.
Contents: real along-track nadir altimeter SSH L3 products; Delayed Time merged all satellites SSH L4 products based on several mapping solutions.
DOI: 10.24400/527896/a01-2021.005 - more metadata
Use: regional studies; ocean variability (mesoscale circulation), data challenge. For example, it will allow investigating the performance of mapping algorithms with recent and future altimeters constellation.
Condition of access: The 2021A_SSH_MAPPING_OSE products are available free of charge for any project or study.
Data access service: OpenDap
Citation: Publications should include the following statement in the Acknowledgments: “The data used in this study (DOI: 10.24400/527896/a01-2021.005) were developed, validated by CLS and MEOM Team from IGE (CNRS-UGA-IRD-G-INP), France and distributed by Aviso+”.
Description: Following the Observation System Experiment (OSE) framework, the SSH observations include SARAL/Altika, Cryosat-2, Haiyang-2A, Jason-2, Jason-3 and Sentinel-3A altimeter data. These along-track data are distributed by the Copernicus Marine Service (CMEMS) [1], here only an extraction of the data over the Gulfstream region is provided. This nadir altimeters constellation was operating during the 2017-01-01 to 2017-12-31 period. Several gridded products constructed with the SARAL/Altika, Jason 1, Haiyang-2A, Jason-2, Jason-3 and Sentinel-3A altimeter data are also provided. The Cryosat-2 dataset is used for independent validation.
Geographic coverage: Gulf Stream [65°W-55°W][33°N-43°N]
Format: NetCDF-4 Classic with CF standards.
Tools:
- User Handbook
- Code delivery: the open source code is available at https://github.com/ocean-data-challenges/2021a_SSH_mapping_OSE
References:
 | to get access Aviso products |
Copyright : 2021 CLS - Cnes / ANR
Observing System Experiment data challenge OSE dataset
Data | Authenticated access service | Data period |
|---|---|---|
| Along-track SARAL/Altika |
Accessible via your personal MY AVISO+ | 2016/12/01-2018/01/31 |
| Along-track Jason-2 | 2016/12/01-2017/09/14 | |
| Along-track Jason-3 | 2016/12/01-2018/01/31 | |
| Along-track Sentinel-3A | 2016/12/01-2018/01/31 | |
| Along-track Cryosat-2 | 2016/12/01-2018/01/31 | |
| Along-track Haiyang-2A | 2016/12/01-2018/01/31 | |
| Mean dynamic topography (CNES-CLS13) | ||
| DUACS mapping gridded SSH | 2017/01/01-2017/12/31 | |
| DYMOST mapping gridded SSH | 2017/01/01-2017/12/31 | |
| MIOST mapping gridded SSH | 2017/01/01-2017/12/31 | |
| BFN SSH mapping gridded SSH | 2017/01/01-2017/12/31 | |
| BASELINE mapping gridded SSH | 2017/01/01-2017/12/31 |
Products 
