Mobile version

Information about mono and multi-mission processing

Transforming raw data into an easily usable form involves a great deal of data processing.

From raw measurement to final user friendly product, several steps performed by expert teams are needed.

Specific processing (dedicated algorithms or adapted corrections) improves the conventional satellite radar altimetry products leading to more accurate data near the coasts and inland waters.

Processing steps and data levels
From raw telemetry to multisatellite gridded products, see the corresponding data levels.
Ssalto : mono-mission processing
Ssalto encompasses the resources to control onboard Doris and Poseidon instruments, to obtain precision orbits (POD), to process altimeter and radiometer data (CMA).
Ssalto/Duacs multimission altimeter products
Duacs is the Ssalto multimission altimeter data processing system. It provides a consistent and homogeneous catalogue of high-resolution products for varied applications, both for near real time applications and offline studies.
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.
EnglishFrançaisEspañol
Rss feedsContactSitemapPartnersFAQGlossaryLexiconMobile
You must enable cookies in your browser preferences to save the modifications
You are using an older version of Internet Explorer, please update to take full advantage of Aviso+ features

Customize the home page

View all widgets
Reduce display
Public profile
User profile

Select/Deselect widgets

Discover AVISO+

Customizable home, reading tools, products search guide, etc.. Discover step by step the features of the new site AVISO+.

Customizable homepage

The new home page is composed of blocks called "widgets".

Rearrange the blocks with a "Click & Drop".

Hide a widget with the cross at the top right. Reset or add a widget with the "wrench" icon. The "User" and "Public" profiles offer a predefined organization.

All the modifications are automatically saved as cookies on your machine so as to enable you to have your own specific AVISO+.

Reading tools

Ease your reading by choosing the page background colour (black/white) and/or by modifying the font size.

Browsing menu and breadcrum trail

To ease your browsing through AVISO+, you can use at any time the main banner items with the interactive submenus or use the browsing menu on the left side of the screen (it is open by default). For more readiness of the page contents, you can fold and unfold the browsing menu by clicking on the tab. At any time you can know where you are thanks to the browsing menu or the breadcrum at the top of the page.

Products search guide

The first submenu of the "Data" banner item leads you to a new search form enabling you to find quickier the product that suits your needs. The list of results is updated according to your selection criteria.

AVISO+ Multimedia

The first submenu of the "Multimedia" banner item leads you to AVISO+ collections of images and videos linked to altimetry and its applications. Have a nice visit!