Using Predicted Earth Angular Momentum for Earth Orientation

Abstract

Previous investigations have shown the potential of enhancing the accuracy of estimates of the direction of the rotational pole and velocity ofrotation of the Earth by applying atmospheric and ocean angular momentum data (based on global conservation of the angular momentum in theEarth system). This poster is a continuation of previous efforts with additional and/or enhanced modeling of the atmospheric and oceanphenomena and, additionally, enhanced optimal smoothing techniques for combining these and other data to make improved and robust estimates.The atmospheric and ocean data are to be provided by the US Navy Earth System Prediction Capability (ESPC) models, and this data will becombined with past geodetic observations from other inputs using a Kalman Smoother/Filter or other optimal estimation technique.