Accelerometerdata transplantgravity fieldGRACEGRACE-FOIn Gravity Recovery and Climate Experiment (GRACE) Follow-on (GRACE-FO) mission, similar to its predecessor GRACE, the twin satellites are equipped with three-axis accelerometers, measuring the non-gravitational forces. After 1 month in orbit, ...
For more than 14 years, the Gravity Recovery and Climate Experiment (GRACE) mission has provided information about Earth’s gravity field with unprecedented accuracy. The twin satellites GRACE-A and GRACE-B are both equipped with a three-axis electrostatic accelerometer, measuring the non-gravitationa...
the time series shows a slight mass gain until November 2016, followed by a drop of approximately20cm. This drop is likely an artifact due to the poorer quality of GRACE data caused by the lack of accelerometer data from GRACE B for this period39(in November 2016 the GRACE B accelerometer...
The accelerometer on-board the satellite analyses the external forces that influence the satellite. The measurement allows scientists to compensate the drag or solar pressure in addition to the gravity. The combination of advanced technologies in measurements of location, force and orbital change will ...
The role of accelerometer data calibra- tion within GRACE gravity field recovery: results from ITSG-Grace2016, Adv. Space Res., 58(9), 1597-1609.Klinger, B., Mayer-Gu¨rr, T.: The role of accelerometer data calibration within GRACE gravity field recovery: Results from ITSG-Grace2016. ...
requires the satellites' orbits to be measured with high precision. Each of the two GRACE satellites is therefore equipped with a GPS receiver for positioning, an accelerometer to correct for disturbing forces due to the residual atmosphere and solar radiation, and two star trackers to determ...
Time-variable gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) missions have opened up a new avenue of opportunities for studying large-scale mass redistribution and transport in the Earth system. Over the past 19 years, GRACE/GRACE-FO...
The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission carries magnetometers that are dedicated to enhance the satellite’s navigation. After appropriate calibration and characterisation of artificial magnetic disturbances, these observations are valuable assets to characterise the natural ...
August 2016) and into the GFO era, differences between GRACE/GFO and Altimeter-Argo GMOM estimates become substantially larger and systematic, which may be related to the single accelerometer mode of operation during late-stage GRACE and GFO missions and/or errors of Argo and altimeter data.doi...
Since June, 2018, the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) is extending the 15-year monthly mass change record of the GRACE mission, which ended in June 2017. The GRACE-FO instrument and flight system performance has improved over GRACE. Better attitude solutions and ...