Not listed THE GRACE MISSION AIMS TO MEASURE THE STATIC AND TIME DEPENDENT COMPONENTS OF THE GRAVITY FIELD. DURING THE THIRTEEN YEARS OF ITS MISSION GRACE MISSION HAS SUCCESSFULLY ACHIEVED ITS DESIGN IN FACTOR OF 100 IMPROVEMENT OF THE EARTHS MEAN GRAVITY FIELD AND MEASURING THE MASS FLUX AND WATER TRANSPORT BETWEEN ATMOSPHERE OCEAN AND LAND AND THE MASS BALANCE OF ICE SHEETS. THE MISSION OPERATION FOR GRACE HAS BEEN APPROVED THROUGH 2017. GRACE FOLLOW ON IS PLANED TO PROVIDE THE CONTINUOUS MEASUREMENTS OF THE GLOBAL MASS FLUX DATA AS REQUIRED FOR EARTH SYSTEM SCIENCE. HOWEVER THERE MAY BE A GAP BETWEEN THE TWO GRACE MISSIONS.THE GEODETIC SATELLITE LASER RANGING (SLR) DATA TRACKING SPANNING OVER 40 YEARS HAVE RECORDED THE GLOBAL NATURE OF THE LARGE SCALE LONG WAVE LENGTH CHANGE OF THE EARTH GRAVITY FIELD WHICH HELPS TO PUT THE MASS VARIATIONS OBSERVED BY GRACE INTO THE CONTEXT OF THE LONG TERM CHANGES. IN ADDITION SLR DETERMINED J2 HAS BEEN ESSENTIAL COMPONENT FOR THE GRACE SCIENCE APPLICATION BECAUSE OF THE SIGNIFICANT ALIASING EFFECTS APPARENT IN THE GRACE DERIVED J2 COEFFICIENT. THE SLR DATA HAVE ALSO OVER THE PAST THREE DECADES PROVIDED LONG TERM STABLE DETERMINATION OF THE MOTION OF THE GEOCENTER (EQUIVALENT TO DEGREE 1 MASS REDISTRIBUTION) WHICH GRACE IS UNABLE TO ACCURATELY CAPTURE DUE TO A LOW SENSITIVITY.THE OBJECTIVE OF THIS PROPOSAL IS TO ANALYZE THE LONG TERM SLR DATA FOR DETERMINING THE LOWER DEGREE PORTION OF THE TIME VARYING GRAVITY FIELD IN PARTICULAR (1) CONTINUE TO PROVIDE A CONSISTENT TIME SERIES OF J2 AND DEGREE 1 (GEOCENTER) TO SUPPORT THE GRACE SCIENCE APPLICATION (2) PROVIDE A 7X7 FIELD TO FILL THE POSSIBLE GAP BETWEEN TWO GRACE MISSIONS FOR MONITORING THE GLOBAL LARGE SCALE MASS FLUX ASSOCIATED WITH THE BALANCE OF ICE SHEETS AND GLOBAL HYDROLOGICAL MASS TRANSPORT (3) DETERMINE AN IMPROVED LONG TERM TIME SERIES OF THE DEGREE 2 GEOPOTENTIONAL COEFFICIENTS TO STUDY THE DECELERATION OF THE VARIATIONS IN THE EARTH DYNAMIC OBLATENESS AND EQUATORIAL ELLIPTICITY AND THE LONG TERM VARIATIONS OF THE EARTHS FIGURE AXIS FOR IMPROVING UNDERSTANDING OF THE LARGE SCALE LONG WAVELENGTH MASS EXCHANGE WITHIN THE EARTH SYSTEM AS PART OF GLOBAL WATER AND ENERGY CYCLES AND TO PROVIDE BETTER CONSTRAINTS FOR MANTLE RHEOLOGY AND CORE MANTLE COUPLING. ($2k) 10/26/21 5 THE GRACE MISSION AIMS TO MEASURE THE STATIC AND TIME DEPENDENT COMPONENTS OF THE GRAVITY FIELD. DURING THE THIRTEEN YEARS OF ITS MISSION, GRACE MISSION HAS SUCCESSFULLY ACHIEVED ITS DESIGN IN FACTOR OF 100 IMPROVEMENT OF THE EARTHS MEAN GRAVITY FIELD AND MEASURING THE MASS FLUX AND WATER TRANSPORT BETWEEN ATMOSPHERE, OCEAN AND LAND AND THE MASS BALANCE OF ICE SHEETS. THE MISSION OPERATION FOR GRACE HAS BEEN APPROVED THROUGH 2017. GRACE FOLLOW ON IS PLANED TO PROVIDE THE CONTINUOUS MEASUREMENTS OF THE GLOBAL MASS FLUX DATA AS REQUIRED FOR EARTH SYSTEM SCIENCE. HOWEVER, THERE MAY BE A GAP BETWEEN THE TWO GRACE MISSIONS. THE GEODETIC SATELLITE LASER RANGING (SLR) DATA TRACKING SPANNING OVER 40 YEARS HAVE RECORDED THE GLOBAL NATURE OF THE LARGE SCALE LONG WAVE LENGTH CHANGE OF THE EARTH GRAVITY FIELD, WHICH HELPS TO PUT THE MASS VARIATIONS OBSERVED BY GRACE INTO THE CONTEXT OF THE LONG TERM CHANGES. IN ADDITION, SLR DETERMINED J2 HAS BEEN ESSENTIAL COMPONENT FOR THE GRACE SCIENCE APPLICATION BECAUSE OF THE SIGNIFICANT ALIASING EFFECTS APPARENT IN THE GRACE DERIVED J2 COEFFICIENT. THE SLR DATA HAVE ALSO, OVER THE PAST THREE DECADES, PROVIDED LONG TERM, STABLE DETERMINATION OF THE MOTION OF THE GEOCENTER (EQUIVALENT TO DEGREE 1 MASS REDISTRIBUTION), WHICH GRACE IS UNABLE TO ACCURATELY CAPTURE DUE TO A LOW SENSITIVITY. THE OBJECTIVE OF THIS PROPOSAL IS TO ANALYZE THE LONG TERM SLR DATA FOR DETERMINING THE LOWER DEGREE PORTION OF THE TIME VARYING GRAVITY FIELD, IN PARTICULAR, (1) CONTINUE TO PROVIDE A CONSISTENT TIME SERIES OF J2 AND DEGREE 1 (GEOCENTER) TO SUPPORT THE GRACE SCIENCE APPLICATION, (2) PROVIDE A 7X7 FIELD TO FILL THE POSSIBLE GAP BETWEEN TWO GRACE MISSIONS FOR MONITORING THE GLOBAL LARGE SCALE MASS FLUX ASSOCIATED WITH THE BALANCE OF ICE SHEETS AND GLOBAL HYDROLOGICAL MASS TRANSPORT, (3) DETERMINE AN IMPROVED LONG TERM TIME SERIES OF THE DEGREE 2 GEOPOTENTIONAL COEFFICIENTS TO STUDY THE DECELERATION OF THE VARIATIONS IN THE EARTH DYNAMIC OBLATENESS AND EQUATORIAL ELLIPTICITY, AND THE LONG TERM VARIATIONS OF THE EARTHS FIGURE AXIS FOR IMPROVING UNDERSTANDING OF THE LARGE SCALE LONG WAVELENGTH MASS EXCHANGE WITHIN THE EARTH SYSTEM AS PART OF GLOBAL WATER AND ENERGY CYCLES, AND TO PROVIDE BETTER CONSTRAINTS FOR MANTLE RHEOLOGY AND CORE MANTLE COUPLING. Funding Only Action ($2k) 10/26/21 4 THE GRACE MISSION AIMS TO MEASURE THE STATIC AND TIME DEPENDENT COMPONENTS OF THE GRAVITY FIELD. DURING THE THIRTEEN YEARS OF ITS MISSION, GRACE MISSION HAS SUCCESSFULLY ACHIEVED ITS DESIGN IN FACTOR OF 100 IMPROVEMENT OF THE EARTHS MEAN GRAVITY FIELD AND MEASURING THE MASS FLUX AND WATER TRANSPORT BETWEEN ATMOSPHERE, OCEAN AND LAND AND THE MASS BALANCE OF ICE SHEETS. THE MISSION OPERATION FOR GRACE HAS BEEN APPROVED THROUGH 2017. GRACE FOLLOW ON IS PLANED TO PROVIDE THE CONTINUOUS MEASUREMENTS OF THE GLOBAL MASS FLUX DATA AS REQUIRED FOR EARTH SYSTEM SCIENCE. HOWEVER, THERE MAY BE A GAP BETWEEN THE TWO GRACE MISSIONS. THE GEODETIC SATELLITE LASER RANGING (SLR) DATA TRACKING SPANNING OVER 40 YEARS HAVE RECORDED THE GLOBAL NATURE OF THE LARGE SCALE LONG WAVE LENGTH CHANGE OF THE EARTH GRAVITY FIELD, WHICH HELPS TO PUT THE MASS VARIATIONS OBSERVED BY GRACE INTO THE CONTEXT OF THE LONG TERM CHANGES. IN ADDITION, SLR DETERMINED J2 HAS BEEN ESSENTIAL COMPONENT FOR THE GRACE SCIENCE APPLICATION BECAUSE OF THE SIGNIFICANT ALIASING EFFECTS APPARENT IN THE GRACE DERIVED J2 COEFFICIENT. THE SLR DATA HAVE ALSO, OVER THE PAST THREE DECADES, PROVIDED LONG TERM, STABLE DETERMINATION OF THE MOTION OF THE GEOCENTER (EQUIVALENT TO DEGREE 1 MASS REDISTRIBUTION), WHICH GRACE IS UNABLE TO ACCURATELY CAPTURE DUE TO A LOW SENSITIVITY. THE OBJECTIVE OF THIS PROPOSAL IS TO ANALYZE THE LONG TERM SLR DATA FOR DETERMINING THE LOWER DEGREE PORTION OF THE TIME VARYING GRAVITY FIELD, IN PARTICULAR, (1) CONTINUE TO PROVIDE A CONSISTENT TIME SERIES OF J2 AND DEGREE 1 (GEOCENTER) TO SUPPORT THE GRACE SCIENCE APPLICATION, (2) PROVIDE A 7X7 FIELD TO FILL THE POSSIBLE GAP BETWEEN TWO GRACE MISSIONS FOR MONITORING THE GLOBAL LARGE SCALE MASS FLUX ASSOCIATED WITH THE BALANCE OF ICE SHEETS AND GLOBAL HYDROLOGICAL MASS TRANSPORT, (3) DETERMINE AN IMPROVED LONG TERM TIME SERIES OF THE DEGREE 2 GEOPOTENTIONAL COEFFICIENTS TO STUDY THE DECELERATION OF THE VARIATIONS IN THE EARTH DYNAMIC OBLATENESS AND EQUATORIAL ELLIPTICITY, AND THE LONG TERM VARIATIONS OF THE EARTHS FIGURE AXIS FOR IMPROVING UNDERSTANDING OF THE LARGE SCALE LONG WAVELENGTH MASS EXCHANGE WITHIN THE EARTH SYSTEM AS PART OF GLOBAL WATER AND ENERGY CYCLES, AND TO PROVIDE BETTER CONSTRAINTS FOR MANTLE RHEOLOGY AND CORE MANTLE COUPLING. Other Administrative Action $0 1/27/20 Not listed THE GRACE MISSION AIMS TO MEASURE THE STATIC AND TIME DEPENDENT COMPONENTS OF THE GRAVITY FIELD. DURING THE THIRTEEN YEARS OF ITS MISSION GRACE MISSION HAS SUCCESSFULLY ACHIEVED ITS DESIGN IN FACTOR OF 100 IMPROVEMENT OF THE EARTHS MEAN GRAVITY FIELD AND MEASURING THE MASS FLUX AND WATER TRANSPORT BETWEEN ATMOSPHERE OCEAN AND LAND AND THE MASS BALANCE OF ICE SHEETS. THE MISSION OPERATION FOR GRACE HAS BEEN APPROVED THROUGH 2017. GRACE FOLLOW ON IS PLANED TO PROVIDE THE CONTINUOUS MEASUREMENTS OF THE GLOBAL MASS FLUX DATA AS REQUIRED FOR EARTH SYSTEM SCIENCE. HOWEVER THERE MAY BE A GAP BETWEEN THE TWO GRACE MISSIONS.THE GEODETIC SATELLITE LASER RANGING (SLR) DATA TRACKING SPANNING OVER 40 YEARS HAVE RECORDED THE GLOBAL NATURE OF THE LARGE SCALE LONG WAVE LENGTH CHANGE OF THE EARTH GRAVITY FIELD WHICH HELPS TO PUT THE MASS VARIATIONS OBSERVED BY GRACE INTO THE CONTEXT OF THE LONG TERM CHANGES. IN ADDITION SLR DETERMINED J2 HAS BEEN ESSENTIAL COMPONENT FOR THE GRACE SCIENCE APPLICATION BECAUSE OF THE SIGNIFICANT ALIASING EFFECTS APPARENT IN THE GRACE DERIVED J2 COEFFICIENT. THE SLR DATA HAVE ALSO OVER THE PAST THREE DECADES PROVIDED LONG TERM STABLE DETERMINATION OF THE MOTION OF THE GEOCENTER (EQUIVALENT TO DEGREE 1 MASS REDISTRIBUTION) WHICH GRACE IS UNABLE TO ACCURATELY CAPTURE DUE TO A LOW SENSITIVITY.THE OBJECTIVE OF THIS PROPOSAL IS TO ANALYZE THE LONG TERM SLR DATA FOR DETERMINING THE LOWER DEGREE PORTION OF THE TIME VARYING GRAVITY FIELD IN PARTICULAR (1) CONTINUE TO PROVIDE A CONSISTENT TIME SERIES OF J2 AND DEGREE 1 (GEOCENTER) TO SUPPORT THE GRACE SCIENCE APPLICATION (2) PROVIDE A 7X7 FIELD TO FILL THE POSSIBLE GAP BETWEEN TWO GRACE MISSIONS FOR MONITORING THE GLOBAL LARGE SCALE MASS FLUX ASSOCIATED WITH THE BALANCE OF ICE SHEETS AND GLOBAL HYDROLOGICAL MASS TRANSPORT (3) DETERMINE AN IMPROVED LONG TERM TIME SERIES OF THE DEGREE 2 GEOPOTENTIONAL COEFFICIENTS TO STUDY THE DECELERATION OF THE VARIATIONS IN THE EARTH DYNAMIC OBLATENESS AND EQUATORIAL ELLIPTICITY AND THE LONG TERM VARIATIONS OF THE EARTHS FIGURE AXIS FOR IMPROVING UNDERSTANDING OF THE LARGE SCALE LONG WAVELENGTH MASS EXCHANGE WITHIN THE EARTH SYSTEM AS PART OF GLOBAL WATER AND ENERGY CYCLES AND TO PROVIDE BETTER CONSTRAINTS FOR MANTLE RHEOLOGY AND CORE MANTLE COUPLING. $0 1/27/20 3 THE GRACE MISSION AIMS TO MEASURE THE STATIC AND TIME DEPENDENT COMPONENTS OF THE GRAVITY FIELD. DURING THE THIRTEEN YEARS OF ITS MISSION, GRACE MISSION HAS SUCCESSFULLY ACHIEVED ITS DESIGN IN FACTOR OF 100 IMPROVEMENT OF THE EARTHS MEAN GRAVITY FIELD AND MEASURING THE MASS FLUX AND WATER TRANSPORT BETWEEN ATMOSPHERE, OCEAN AND LAND AND THE MASS BALANCE OF ICE SHEETS. THE MISSION OPERATION FOR GRACE HAS BEEN APPROVED THROUGH 2017. GRACE FOLLOW ON IS PLANED TO PROVIDE THE CONTINUOUS MEASUREMENTS OF THE GLOBAL MASS FLUX DATA AS REQUIRED FOR EARTH SYSTEM SCIENCE. HOWEVER, THERE MAY BE A GAP BETWEEN THE TWO GRACE MISSIONS. THE GEODETIC SATELLITE LASER RANGING (SLR) DATA TRACKING SPANNING OVER 40 YEARS HAVE RECORDED THE GLOBAL NATURE OF THE LARGE SCALE LONG WAVE LENGTH CHANGE OF THE EARTH GRAVITY FIELD, WHICH HELPS TO PUT THE MASS VARIATIONS OBSERVED BY GRACE INTO THE CONTEXT OF THE LONG TERM CHANGES. IN ADDITION, SLR DETERMINED J2 HAS BEEN ESSENTIAL COMPONENT FOR THE GRACE SCIENCE APPLICATION BECAUSE OF THE SIGNIFICANT ALIASING EFFECTS APPARENT IN THE GRACE DERIVED J2 COEFFICIENT. THE SLR DATA HAVE ALSO, OVER THE PAST THREE DECADES, PROVIDED LONG TERM, STABLE DETERMINATION OF THE MOTION OF THE GEOCENTER (EQUIVALENT TO DEGREE 1 MASS REDISTRIBUTION), WHICH GRACE IS UNABLE TO ACCURATELY CAPTURE DUE TO A LOW SENSITIVITY. THE OBJECTIVE OF THIS PROPOSAL IS TO ANALYZE THE LONG TERM SLR DATA FOR DETERMINING THE LOWER DEGREE PORTION OF THE TIME VARYING GRAVITY FIELD, IN PARTICULAR, (1) CONTINUE TO PROVIDE A CONSISTENT TIME SERIES OF J2 AND DEGREE 1 (GEOCENTER) TO SUPPORT THE GRACE SCIENCE APPLICATION, (2) PROVIDE A 7X7 FIELD TO FILL THE POSSIBLE GAP BETWEEN TWO GRACE MISSIONS FOR MONITORING THE GLOBAL LARGE SCALE MASS FLUX ASSOCIATED WITH THE BALANCE OF ICE SHEETS AND GLOBAL HYDROLOGICAL MASS TRANSPORT, (3) DETERMINE AN IMPROVED LONG TERM TIME SERIES OF THE DEGREE 2 GEOPOTENTIONAL COEFFICIENTS TO STUDY THE DECELERATION OF THE VARIATIONS IN THE EARTH DYNAMIC OBLATENESS AND EQUATORIAL ELLIPTICITY, AND THE LONG TERM VARIATIONS OF THE EARTHS FIGURE AXIS FOR IMPROVING UNDERSTANDING OF THE LARGE SCALE LONG WAVELENGTH MASS EXCHANGE WITHIN THE EARTH SYSTEM AS PART OF GLOBAL WATER AND ENERGY CYCLES, AND TO PROVIDE BETTER CONSTRAINTS FOR MANTLE RHEOLOGY AND CORE MANTLE COUPLING. Funding Only Action $109.7k 3/8/19