https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 On computation of potential, gravity and gravity gradient from GRACE inter-satellite ranging data: a systematic study https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44637 1 cycle-per-revolution (CPR), >7 CPR, and 7-40 CPR, respectively. Considering the actual error of residual KBR data, it is feasible to accurately compute the gravimetric observables directly from band-pass filtered residual range-rate and range-acceleration data, and employ them for analyses concerning the regional time-variable gravity field of the Earth such as continental hydrology.]]> Tue 18 Oct 2022 14:55:33 AEDT ]]> GRACE follow-on laser ranging interferometer measurements uniquely distinguish short-wavelength gravitational perturbations https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40034 2 at 490 km altitude, improved by 1 order of magnitude from KBR. This allows LRI to uniquely detect un-/mis-modeled short-wavelength gravitational perturbations. We employed all LRI data in 2019 to validate various state-of-the-art global static gravity field models and show that LRI measurements, even over 1 month, can distinguish subtle differences among the models computed from ~15 years of GRACE KBR and ~4 years of Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) gradiometry data. Ultra-precise LRI measurements will be yet another critical data set for future gravity field model development.]]> Fri 15 Jul 2022 10:11:22 AEST ]]>