Starting today , CryoSat ocean measurements are being processed by CNES and distributed to the oceanography community. These products will be assimilated using models from the MyOcean project in near-real time to enhance sea surface products and to improve the quality of the model forecasts.
During major crises such as the Deepwater Horizon and Fukushima disasters, MyOcean models exploited remote sensing data – in particular, altimetry data – to help monitor these crises.Altimetry data is of highest importance to predict the evolution of local marine currents in near-real time.
The complete 2010–11 winter season data have been processed to produce a seasonal variation map of sea-ice thickness. This is the first map of its kind generated using data from a radar altimeter at such a high resolution compared to previous satellite measurements. CryoSat’s altimeter makes precise measurements of its height above the ice by measuring the time interval between the transmission and reception of very short radar pulses. Readings over the Arctic from October 2010 to March 2011 were processed to map the seasonal formation of floating ice. ESA and NASA have been collaborating to perform carefully coordinated flights directly under CryoSat’s orbit over the Arctic, gathering data to ensure the accuracy of the satellite measurements.
Antarctica is now losing about 160 billion tonnes of ice a year to the ocean - twice as much as when the continent was last surveyed.The new assessment comes from Europe's Cryosat spacecraft, which has a radar instrument specifically designed to measure the shape of the ice sheet.The melt loss from the White Continent is sufficient to push up global sea levels by around 0.43mm per year.Scientists report the data in the journal Geophysical Research Letters.The new study incorporates three years of measurements from 2010 to 2013, and updates a synthesis of observations made by other satellites over the period 2005 to 2010.Cryosat has been using its altimeter to trace changes in the height of the ice sheet - as it gains mass through snowfall, and loses mass through melting.
The researchers discovered the Indian Ocean microplate, called Mammerickx Microplate and measuring roughly the size of West Virginia, using seafloor maps that combine data drawn from radar altimeters onboard the Jason-1 ocean surveying spacecraft launched in 2001 by NASA and the French space agency, CNES, and CryoSat-2, a European Space Agency environmental research satellite launched in 2010.
Today marks 10 years since a Dnepr rocket blasted off from an underground silo in the remote desert steppe of Kazakhstan, launching one of ESA’s most remarkable Earth-observing satellites into orbit. Tucked safely within the rocket fairing, CryoSat had a tough job ahead: to measure variations in the height of Earth’s ice and reveal how climate change is affecting the polar regions. Carrying novel technology, this extraordinary mission has led to a wealth of scientific discoveries that go far beyond its primary objectives to measure polar ice. And, even at 10 years old, this incredible mission continues to surpass expectations.
Collision avoided! 💥 @esaoperations confirm that a collision avoidance manoeuvre executed at 16.44 yesterday afternoon was successful. #CryoSat moved to avoid space debris, a 2m chunk of a rocket 🚀 weighing 202kg. We're back on track with instruments working as normal.
Collision avoided! 💥 At 2045 yesterday evening @esaoperations were called into action to avoid a 3cm shard of space debris predicted to pass within <300 metres of #CryoSat 🛰️ The debris dates back to the space race - part of an Agena-D rocket upper stage 🚀 We're safe and sound!
🤩 CryoSat lives! 🤩⛽️ A fuel leak threatened to bring @esa's ice mission to a premature end🕹️ At @esaoperations yesterday, we swapped to its back-up propulsion system🥵 The back-up thrusters had never been used before, in over 13 years in space...🥳 ...and it was a success! CryoSat flies on, to continue its unparalleled record of global ice for a good while yet👉