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27.06.2022 12:02 Age: 162 days

CFOSAT SWIM data in version 6

Category: News of the CFOsat mission, Website updates

We are pleased to announce the upgrade in version 6 of SWIM data. All data from today June 27th 10:36:06 UTC are now available in the OP06 version. All the SWIM products are concerned.

We are pleased to announce the upgrade in version 6 of SWIM data. All data from today June 27th 10:36:06 UTC are now available in the OP06 version. All the SWIM products are concerned.

 

 

 

The improvements are: 

Level modified Main changes since the previous version Impact on the products
L1A Swath Scale Variability forced to fill_value for nadir beam
Evolution of the micro cuts detection algorithm
Improvement of micro cuts detection, and impacted signals identification.
L1B Propagation of the echo_l1a_swath_scale_variability parameter to L1B product
evolution of the processing for macrocycles rejection : specific processing depending on surface : Ocean and sea-ice
evolution of the flag sigma0_slope
New parameter available in L1B
Improvement of macrocycle rejection before processing
Improvement of sigma0_slope flag significance
L2 Filtering of sigma0 profiles before mini profiles generation
Normalization of the sigma0_fit_quality parameter
Improvement of sigma0 mini profiles quality
Simplification of quality index exploitation
Nadir part of L2 Evolution of the nadir_sigma0_native parameter : atmospheric correction taken into account
New parameter nadir_atmo_cor_native added in the product
All nadir sigma0 parameters consistent, taking into account the atmospheric correction, given as a parameter

 

The detailed information about the AWWAIS version changes are available here.

ACCESS TO THE DATA: These data sets are fully open for download. They are available on the two following services (please note that the credentials are different for the two services):

1/ On the ftp server :

The SWIM L1B, L2 and L2P SWH 1Hz Nadir are available on the FTP service for quick access and automatic chains:

Registration: please fill the form on the registration form and select the product "Wave / wind CFOSAT product"; the access will be opened after validation by the Service Desk,

Access: with dedicated credentials (login=email address) directly via the FTP (not supported by all browsers) or via your personal space MY AVISO+  (where you have the access to all your products).

To avoid confusion with the previous processing versions:

-the files are now named "CFO_OP06_SWI_....." instead of “CFO_OP05_SWI_...”,

-the folders are named “swim_XX_op06” instead of “swim_XX_op05

The FTP service is: ftp-access.aviso.altimetry.fr/cfosat

in the folders:

-for SWIM L1B products => swim_l1b_op06 (all files are accessible online)

-for SWIM L2 products => swim_l2_op06 (all files are accessible online)

-for SWIM L2P SWH 1Hz Nadir products => swim_l2p_nadir_nrt (same directory)

-for SWIM L2P BOX products => swim_l2p_box_nrt (same directory)

2/ On the Aviso+ CNES data Center (https://aviso-data-center.cnes.fr/):

All SWIM products (except L2P SWH 1Hz Nadir) and all SCAT products are available via this archive catalogue

Registration: Dedicated credentials used for this service are given via the registration on top/right of https://aviso-data-center.cnes.fr/ ; the access will be opened after validation by the Service Desk,

Access: with dedicated credentials on https://aviso-data-center.cnes.fr/; Note that the archiving of the new version is still on-going and this new version can be identified in the parameter FILE_CLASS where you can choose “op06”.

The validation reports can be downloaded here.

Please, contact the help desk at aviso(at)altimetry.fr for any question.

Jean-Michel Lachiver, Cedric Tourain, Lotfi Aouf and Daniele Hauser

Link to CFOSAT mission

 


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