[Send to a friend] [Print] Altika A high accurate oceanography altimeter Satellite radar altimetry is a technique used in oceanography to measure sea level on a large scale. The data obtained is vital to understanding ocean circulation and its variations. The AltiKa project, which was develope ...Read more
[Send to a friend] [Print] A leap forward for oceanography 3 June 2008 Over the last 15 years, altimetry satellites have been poring over the oceans in every detail, collecting more data in 10 days than could be gathered over ...Read more
[Send to a friend] [Print] Jason 1 and 2 The ocean observatory The oceans are a vital element of our planet's equilibrium, occupying 70 % of the surface of the globe. Ever-changing, they are subject to influences from solar radiation, wind and atmospheric pressure at the surface, exchanges of ...Read more
[Send to a friend] [Print] From altimetry to operational oceanography Variations of sea surface-level Surface topography varies on several scales of time and space. Satellite altimetry is capable of measuring these variations globally and almost instantaneously with centimetre accuracy, all ...Read more
[Send to a friend] [Print] Jason-2 all set for the off 18 juin 2008 The Jason-2 oceanography satellite is now in the home straight and set for launch Friday 20 June. Before reaching final orbit, the satellite will go through a sequence of steps just after launch and during the beginning-of-lif ...Read more
[Send to a friend] [Print] Charting and forecasting ocean conditions 12 June 2008 Satellite altimetry is the only space-based technology capable of penetrating below the ocean surface. This capability will benefit a broad rang ...Read more
[Send to a friend] [Print] In the tracks of Topex/Poseidon From experimentation to applications The key research topics and objectives of the Jason programme were established on the basis of the lessons learned from the experimental Topex/Poseidon mission. The Jason-1 satellite, 5 times lig ...Read more
PRESS RELEASE [Send to a friend] [Print] CNES PRESS RELEASE April 29, 2004 JASON-2 PROGRAMME ENTERS DEVELOPMENT PHASE 29 April 2004, the CNES Board of Administration gave the go-ahead for the Jason-2 programme t ...Read more
[Send to a friend] [Print] Jason-2: a family affair 27 May 2008 Jason-2's main mission is to take over from its predecessor Jason-1 and assure data continuity. But the latest in the series of oceanography satellites is also c ...Read more
PR079-2006 - CNES and IFREMER join forces to develop operational oceanographyRead more
How altimetry works [Send to a friend] [Print] Observation of the oceans most certainly began when the first mariners set out to sea. To begin with, observations would have been concerned with finding the best trade routes. Subsequently, as each new discovery by explorers raised new questions, ...Read more
[Send to a friend] [Print] From experimentation to operational oceanography Origins of the project US scientists proposed the first satellite altimetry observation projects in 1965 at a seminar in Athens, Greece. The programmes were inaugurated in 1975 with the US GEOS 3 satellite, followed ...Read more
[Send to a friend] [Print] Topex/Poseidon The beginnings of satellite oceanography Life on Earth would be impossible without the oceans. They are a vital element in maintaining the Earth's balance, and cover 70% of the planet's surface. The turbulent oceans undergo constant variations due to ...Read more
[Send to a friend] [Print] Jason at a glance Jason 1 key figures Mass 500 kg Dimensions 3 metres in height Altitude 1,336 km Design lifetime ...Read more
PR001-2005 - NASA's TOPEX-POSEIDON oceanography mission endsRead more
CNES and China National Space Administration (CNSA) strengthen cooperative ties CNES President Jean-Yves Le Gall and Xu Dazhe, Administrator of the China National Space Administration (CNSA), signed an agreement Wednesday 26 March aimed at achieving closer cooperation between France and China in ...Read more
[Send to a friend] [Print] Technical characteristics How altimetry works [JASON-1 - © CNES/ill.D.Ducros, 2001] [/img/2008/imageZoom.gif] JASON-1 - © CNES/ill.D.Ducros, 2001 The radar altimeter on Jason-1 sends waves, which are reflected off the surface of the ocean. The round-trip time of t ...Read more
El Niño reveals the inner workings of the ocean [Send to a friend] [Print] Contrary to what we might think, El Niño is not just a local phenomenon but rather a pattern that highlights the complexities of global climate mechanisms. By climate, we mean the basic weather parameters that determine ...Read more
From ship to satellite [Send to a friend] [Print] Until 30 years ago, voluntary observing ships were the only way to gather data about the oceans. While it is easy to see that satellites give us a bird's eye view for global observations, it is harder to imagine how they can help to refine analy ...Read more
Observe, understand, predict [Send to a friend] [Print] The significant advances made in the last 30 years have been made possible largely by new means of satellite- and ground-based observation, and by new processing techniques. Since the 1990s, an in-situ observation system has been set up i ...Read more
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