National Aeronautics and Space Administration

This is an animation of all observations actively assimilated in the GEOS-5 Atmospheric Data Assimilation System at the NASA Goddard’s Global Modeling and Assimilation Office. The animation is valid for ±3 hours of 0000 UTC on 10 December 2014. It illustrates the progression of observations over the course of the 6 hour assimilation window. Highlighted observations are new to within five minutes of the clock in the animation below. The assimilations "burn in" to the animation to illustrate how they accumulate over the six-hour assimilation window. Read more.