Tapley, B. ., Chambers, D. ., Bettadpur, S. ., & Ries, J. C. (2003). Large scale ocean circulation from the GRACE GGM01 Geoid. Geophysical Research Letters, 30. http://doi.org/10.1029/2003GL018622 (Original work published November 2003)
S. Bettadpur
First name
S.
Last name
Bettadpur
Tapley, B. ., Ries, J. C., Bettadpur, S. ., Chambers, D. ., Cheng, M. ., Condi, F. ., … Wang, F. . (2005). GGM02 An improved Earth gravity field model from GRACE. Journal of Geodesy, 79, 467–478. http://doi.org/10.1007/s00190-005-0480-z (Original work published November 2005)
Kang, Z. ., Tapley, B. ., Chen, J. ., Ries, J. C., & Bettadpur, S. . (2009). Geocenter variations derived from GPS tracking of the GRACE satellites. Journal of Geodesy, 83, 895–901. http://doi.org/10.1007/s00190-009-0307-4 (Original work published October 2009)