NASA launched SMAP, worlds first satellite for soil moisture measurements

After two postponements, the US space agency NASA launched successfully on Saturday, the first satellite in the world that is able to measure soil moisture on the entire surface of the Earth, therefore researchers can make better predictions over droughts and floods.

Delta 2 rocket which conveyed the satellite SMAP (“Soil Moisture Active Passive”) in its cargo bay, took off from Vandenberg military base in California at 14.22 GMT. Delta 2 is manufactured by United Launch Alliance.
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SMAP observatory and Delta 2 rocked on launch pad at Vandenberg Air Force Base (Image credit: NASA/Bill Ingalls)

SMAP observatory and Delta 2 rocked on launch pad at Vandenberg Air Force Base (Image credit: NASA/Bill Ingalls)

SMAP satellite, which is equipped with two scientific instruments – a radiometer and radar – is set to perform very precise measurements aiming the water and ice quantities contained in the Earth’s soil.

This mission will allow scientists to compile a map of an unprecedented resolution featuring the surface soil moisture levels on Earth. The mapping process is expected to be updated every two to three days and in this way, scientists get a better idea about the risks and mechanisms triggering droughts and floods.

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