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Tue, Sep 18, 2018

Aeolus Wows With First Wind Data

Results Come Just A Week After Operations Commenced

Just one week after ESA’s Aeolus satellite shone a light on our atmosphere and returned a taster of what’s in store, this ground-breaking mission has again exceeded all expectations by delivering its first data on wind – a truly remarkable feat so early in its life in space.

"We always knew that Aeolus would be an exceptional mission, but these first results have really impressed us," said Florence Rabier, Director General of the European Center for Medium-Range Weather Forecasts (ECMWF). “The satellite hasn’t even been in orbit a month yet, but the results so far look extremely promising, far better than anyone expected at this early stage. We are very proud to be part of the mission. Aeolus looks set to provide some of the most substantial improvements to our weather forecasts that we’ve seen over the past decade.”

"These first wind data shown in the plot made by ECMWF are from one orbit. In the profile we can see large-scale easterly and westerly winds between Earth’s surface and the lower stratosphere, including jet streams," said ESA’s Aeolus mission scientist, Anne Grete Straume. “In particular, you can see strong winds, called the Stratospheric Polar Vortex, around the South Pole. These winds play an important role in the depletion of the ozone layer over the South Pole at this time of the year.”

Named after Aeolus, who in Greek mythology was appointed ‘keeper of the winds’ by the Gods, this novel mission is the fifth in the family of ESA’s Earth Explorers, which address the most urgent Earth-science questions of our time. It carries the first instrument of its kind and uses a completely new approach to measuring the wind from space.

"Aeolus carries revolutionary laser technology to address one of the major deficits in the Global Observing System: the lack of direct global wind measurements," said ESA’s Earth Explorer Program manager. “The essence of an Earth Explorer mission is to deliver data that advances our understanding of our home planet and that demonstrates cutting-edge space technology. With the first light measurements and now these amazing wind data, Aeolus has wowed us on both fronts.”

"These first results are truly amazing. It took years to develop this remarkable mission and everyone’s hard work is really paying off," said ESA’s Aeolus instrument manager, Denny Wernham. “Aeolus’ Aladin instrument is extremely sensitive. When we switched it on we increased its energy levels step by step, checking it after every move. t is indeed wonderful to see that it is behaving superbly so soon after launch.”

"These initial results look wonderful. Thanks to the meticulous preparatory work and testing, the mission is in really good shape. Our Aladin system engineer, Olivier Lecrenier, tells me that it has exceeded his best expectations," said Nicola Chamussy, Head of Airbus Space Systems. “Huge congratulations to everyone involved in this world first.”

(Image provided with ESA news release)

FMI: www.esa.int

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