In this section, we highlight main events related to products evolution, or new publications on product performances.
Since the beginning of operations of the Sentinel-1 mission, Wave Mode OCN products contain the significant wave height of the swell for each wave partition observed by the SAR instrument.
Since 2022-06-07, the Wave Mode OCN products contain as well the "Total" significant wave height (not only from the swell component) as extracted using the Neural Network algorithm described in [Quach et al 2020] and trained on altimeter measurements.
Two new variables are provided: oswTotalHs (significant wave height) and oswTotalHsStdev (standard deviation of significant wave height). These variables are qualified as "total" to avoid any confusion with the oswHs variable that is already used for the significant wave height of the swell for each wave partition in the products.
The first operational validation of this new measurement illustrates good match with reference mean Hs from CMEMS, as can be seen by the scatter plot and metrics provided in the figure below.
[Quach et al 2020] Quach, B., Glaser, Y., Stopa, J. E., Mouche, A. A., & Sadowski, P. (2020). Deep learning for predicting significant wave height from synthetic aperture radar. IEEE Transactions on Geoscience and Remote Sensing, 59(3), 1859-1867.
The status of the Sentinel-1 mission and the product evolutions will be presented during a dedicated session of the Living Planet 2022 symposium.
The Sentinel-1 product users will be able to meet representatives of the SAR Mission Performance Cluster during the
An evolution of the Sentinel-1 processing baseline will be introduced on 23 March for all newly generated products. This evolution features two main items:
This evolution will be activated with the deployment of the new instrument processor version 3.5.1.
Products generated after the deployment of this version will tag version 3.5.1 of the operational processor in the corresponding product metadata and will be aligned with the new product format specifications 3.11.
The annual performance report for the Sentinel-1 mission was published on 2022-03-04