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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
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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