NASA aims to measure vital snow data from satellites

NASA says the information is important because one-sixth of the world's population gets most of its water from melted snow.

Update: 2017-02-21 07:38 GMT

In this Friday, Oct. 14, 2016 photo, an Orbital ATK Antares rocket carrying the Cygnus spacecraft is raised into the vertical position on launch Pad-0A at NASA's Wallops Flight Facility in Virginia. The Sunday, Oct. 16, 2016 scheduled cargo resupply mission to the International Space Station would be the company's first Antares launch since an explosion seconds after liftoff in 2014, which destroyed the rocket and space station supply ship, and damaged the launch complex. (Bill Ingalls/NASA via AP)

Airplanes are scanning the Colorado high country with an array of sensors as scientists search for better ways to measure how much water is locked up in the world's mountain snows.

A NASA-led experiment called SnowEx is testing 10 instruments that might one day be used to monitor snow from satellites. The goal is to find the ideal combination of sensors that can overcome multiple obstacles, including how to analyze snow hidden beneath forest canopies.

NASA says the information is important because one-sixth of the world's population gets most of its water from melted snow.

But estimating how much water the snow contains is difficult because of tree cover, variations in snow layers and liquid water inside snowbanks that can confuse sensors.

SnowEx aims to find a combination of sensors that works best.

NASA aims to measure vital snow data from satellites

NASA says the information is important because one-sixth of the world's population gets most of its water from melted snow.

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