Ice age effects on the satellite-derived J˙2 datum: Mapping the sensitivity to 3D variations in mantle viscosity ...

• Main Authors: Kim, AJ, Crawford, O, Al-Attar, D, Lau, HCP, Mitrovica, JX, Latychev, K
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier BV 2022
• Subjects: satellite geodesy; glacial isostatic adjustment; 3D mantle viscosity; long wavelength geopotential; adjoint method; sensitivity kernels; Canada; Peltier; Ice Sheet
• Online Access: https://dx.doi.org/10.17863/cam.80177; https://www.repository.cam.ac.uk/handle/1810/332736

Studies of glacial isostatic adjustment (GIA) based on spherically symmetric viscoelastic Earth models have argued that the rate of change of the degree 2 zonal harmonic of the Earth’s geopotential, or J˙2, provides an important constraint on mean viscosity in the deep mantle (Mitrovica and Peltier,...