Mobile version

Where currents meet

Image of the Month - July 2000

The Agulhas system is a key region for understanding how the ocean affects global climate on two counts: first, because it transports warm waters from the Indian Ocean towards the Atlantic, thus maintaining the global thermohaline circulation; and second, because it plays an active role in the carbon cycle by absorbing carbon dioxide. The frontal system formed by the Agulhas Return Current and the subtropical convergence zone is an area of intense mesoscale activity that is teeming with life and chlorophyll a.

Only by combining complementary information about dynamic topography, sea surface temperature and ocean color derived from simultaneously acquired satellite data will we obtain dynamic scenarios better able to describe the spatial and temporal variability of phytoplankton distribution.

Altimetry and ocean color. The most turbulent zones (hills in red and valleys in mauve on the map of residual sea surface heights derived from altimetry, on the left, in centimeters) are where biological activity is most intense (in red on the ocean color map: quantity, in milligrams, of chlorophyll a per cubic meter of water). (Credits Legos).


Rss feedsContactPartnersFAQLexiconLegal noticePersonal Data Protection PolicyMobile
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

This 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!