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The gravity recovery and climate experiment: Mission overview and early results
[1] The GRACE mission is designed to track changes in the Earth's gravity field for a period of five years. Launched in March 2002, the two GRACE satellites have collected nearly two years of data. AExpand
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GRACE Measurements of Mass Variability in the Earth System
Monthly gravity field estimates made by the twin Gravity Recovery and Climate Experiment (GRACE) satellites have a geoid height accuracy of 2 to 3 millimeters at a spatial resolution as small as 400Expand
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Statistical Orbit Determination
1 Orbit Determination Concepts 2 The Orbit Problem 3 Observations 4 Fundamentals of Orbit Determination 5 Square-root Solution Methods 6 Consider Covariance Analysis A Probability and Statistics BExpand
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GGM02 – An improved Earth gravity field model from GRACE
A new generation of Earth gravity field models called GGM02 are derived using approximately 14 months of data spanning from April 2002 to December 2003 from the Gravity Recovery And ClimateExpand
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Variations in the Earth's oblateness during the past 28 years
[1] Analysis of satellite laser ranging (SLR) data indicates that the Earth's dynamic oblateness (J2) has undergone significant variations during the past 28 years. The dominant signatures in theExpand
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Adaptive sequential estimation with unknown noise statistics
Sequential estimators are derived for suboptimal adaptive estimation of the unknown a priori state and observation noise statistics simultaneously with the system state. First- and second-orderExpand
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High‐resolution CSR GRACE RL05 mascons
TLDR
The determination of the gravity model for the Gravity Recovery and Climate Experiment (GRACE) is susceptible to modeling errors, measurement noise, and observability issues. Expand
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Accelerated Antarctic ice loss from satellite gravity measurements
Accurate quantification of Antarctic ice-sheet mass balance and its contribution to global sea-level rise remains challenging. Gravity Recovery and Climate Experiment data spanning the period AprilExpand
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Deceleration in the Earth's oblateness
[1] For over three decades, satellite laser ranging (SLR) has recorded the global nature of the long-wavelength mass change within the Earth system. Analysis of the most recent time series of 30 dayExpand
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Satellite Gravity Measurements Confirm Accelerated Melting of Greenland Ice Sheet
Using time-variable gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) satellite mission, we estimate ice mass changes over Greenland during the period April 2002 toExpand
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