NASA mission to study ice clouds, help observe our dynamic atmosphere -

NASA has selected a new mission to help humanity better understand Earth's dynamic atmosphere—specifically, ice clouds that form at high altitudes throughout tropical and sub-tropical regions. The PolSIR instrument—short for Polarized Submillimeter Ice-cloud Radiometer—will study such ice clouds to determine how and why they change throughout the day. This will provide crucial information about how to accurately simulate these high-altitude clouds in global climate models.

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