JASON-3The era of operational oceanography
How will it be used?
Satellite altimetry enables precise measurement globally, and almost instantaneously of the height variations of the ocean surface. Altimetry makes it possible to follow temporal variations in the surface topography of the oceans and to observe oceanic variability (eddies, etc.) as well as tides and seasonal or climate-related phenomena such as El Niño.
Since the start of altimetry satellite in 1992, increase in sea levels of about 3mm/ year has been observed, with high spatial variability (depending on the region). This increase is an indicator of global warming.
In addition to surface topography, the signal recorded by altimeters enables measurement of two other parameters used in marine meteorology: average wave height and surface wind speed. These measurements, available in near real time, are used for meteorological forecasts and for navigation.
Today, more than 10,000 people in over 120 countries use data from altimetry missions, for which the fields of application are crucial in the context of climate change,
Jason-3 key figures
Altitude 1336 km
Repeat cycle 10 days
Launch 17 January 2016
Launcher Falcon 9 (Space X)
Mission life time 3 years (goal of 5 years)
Are you interested in the environmental evolution of our planet (including rising ocean levels, melting ice, extreme climate events such as El Niño and threats to marine biodiversity)? If so CNES is inviting you to discover the role of Jason-3, the European-American oceanography satellite launched at the beginning of 2016 to study the climate and the environment, by taking part in the Jason-3 Competition.
Your task will be to use the resources made available online by the various stakeholders in this space project, to reflect on satellite-based Earth observation and climate evolution and then propose an attractive and documented mini web site. You can build your web site using functional modules that enable you to give it your own special touch (with an image slideshow, interactive videos, and chat sessions among others).
First register by creating an account and completing the online form. Once your registration has been validated you will be able to design your mini-site online via the competition site.
The competition, which begins on 7 November 2016 and closes on 28 April 2017, is reserved for schools (primary and secondary). The articles may be written in French or English.
CNES will be awarding a prize for the best production in each category (primary school, middle school and high school) after selection by a jury made up of scientists, teachers and multimedia experts. The winning sites will be highlighted on CNES web sites and social networks.