image source: esa

Aeolus is the fifth planned Earth Explorer mission of European Space Agency (ESA).

Europe on Wednesday launched a rocket from French Guyana, which placed satellites in orbit as a part of the world's first space mission to map the Earth wind at the global level. Launch take place at 9.20pm GMT after the delay of 24 hours due to adverse weather conditions. Flight was set at less than 55 minutes for the separation of the satellite from liftoff.

A satellite named Aeolus will be placed at a height of 200miles (320km) from the Earth. It is part of the Copernican project, a joint initiative of the European Union and European Space Agency (ESA) to track environmental damage and aid disaster relief operation. This satellite is equipped with a single device: a Doppler Wind Lider, An advanced laser system designed to accurately measure global air pattern from space

Ariane Space said that, "The mission will provide much needed data to contribute to long-term climate research as well as improving the quality of weather forecasts".

Due to the almost complete absence of direct observations, specially tropical winds are mapped very poorly. Doppler leader transmits small, powerful pulses of laser light toward the Earth in ultraviolet spectrum. Particles in the air - moisture, dust, gases - a small fraction of that light energy transmits back to the transceiver, where it is collected and recorded.

The delay between the outgoing pulse and the "backscapped" signal leads to the direction, speed, and distance of the wind. Per Orbit, data is downloaded at a ground station in Svalbard, Norway.

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