NASA, GEOS 5 Aerosols

Satellites, balloonborne instruments and groundbased devices make 30 million observations of the atmosphere each day. Yet these measurements still give an incomplete picture of the complex interactions within Earth s atmosphere. Enter climate models. Through mathematical experiments, modelers can move Earth forward or backward in time to create a dynamic portrait of the planet. NASA Goddard s Global Modeling and Assimilation Office recently ran a simulation of the atmosphere that captured how winds whip a