GEOS/GOCART Model contact Huisheng Bian, Huisheng.Bian@nasa.gov Peter Colarco, Peter.Colarco@nasa.gov Mian Chin, mian.chin@nasa.gov Model contributors Huisheng Bian Mian Chin Dongchul Kim Xiaohua Pan Hongbin Yu Institution NASA Goddard Space Flight Center Phase 2 3