Universal Time Prediction using Both Geodetic and Atmospheric Angular Momentum Data
In the present paper, we have investigated the possibility of using both geodetic Universal Time solution and short-term variations of Atmospheric Angular Momentum (AAM) estimates, including forecasts, now available on a real-time basis from various meteorological centers to derive routinely a Universal Time prediction. A series of simulation has been performed; results show that there is a significant improvement for short-term predictions (i.e. 5 or 10 days in advance) when compared to the prediction solely based on geodetic data. For longer-term prediction similar precisions are obtained.
KeywordsEarth Rotation Universal Time Geodetic Data Atmospheric Angular Momentum International Earth Rotation
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