Mobile version

Variable winds in North Atlantic

Lively Data - February 15, 2008

By being the place of deep water formation flowing southwards, the northern part of the North Atlantic is an important area in ocean circulation at a large scale (thermohaline circulation). At the surface, the Gulf Stream balances this movement by allowing a redistribution of heat from the equator to the poles. So it is a high variability area that we have already seen in this section, in terms of sea level anomalies (September 22, 2006 : Atlantic Ocean with steric effects, February 18, 2004 : North Atlantic sea level heights over time).

This area should be also the place of radical changes with the global warming. And paradoxically, it should be rather cool (Applications : Long-term climate prediction). The Gulf Stream flows could be changed, letting Europe to the mercy of winds and winter storms (Applications : Atlantic storm wave heights at hurricane's level).

Seasonal averages of Wind Speed Modulus (left) and Significant Wave Height (right) during winter 2007 (top) and summer 2007 (bottom). Select NRT > Global > Gridded Wind Speed Modulus merged. Choose "define variable" in the left menu. This option allows you to compute some statistics with data sets. Choose "average", click on "T" and define your temporal period and finally your area.

Further information :

Use the LAS

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!