ITU_GRACE16 The global gravity field model including GRACE data up to degree and order 180 of ITU and other collaborating institutions Akyilmaz, O. Istanbul Technical University (ITU), Turkey Ustun, A. 11641407700 Kocaeli University (KOU), Turkey Aydin, C. Yildiz Technical University, Dept. of Geomatics Engineering, Geodesy Division, Istanbul, Turkey Arslan, N. Cukurova University, Dept. of Geomatics Engineering, Geodesy Division, Ceyhan, Adana, Turkey Doganalp, S. Necmettin Erbakan University, Dept. of Geomatics Engineering, Konya, Turkey Guney, C. Istanbul Technical University (ITU), Turkey Mercan, H. Istanbul Technical University (ITU), Turkey Uygur, S.O. Yildiz Technical University, Dept. of Geomatics Engineering, Geodesy Division, Istanbul, Turkey Uz, M. Abant Izzet Baysal University, Dept. of Geomatics Engineering, Bolu, Turkey Yagci, O. Istanbul Technical University (ITU), Turkey