[SGD01-P04] The International Gravity Field Service (IGFS) and its contributions to the GGOS infrastructure
Keywords:gravity field, geoid, global geodtic observing system
The IGFS Central Bureau is hosted at the Aristotle University of Thessaloniki (Greece) and, besides other activities, provides a link to the Global Geodetic Observing System (GGOS) Bureaus in order to communicate their requirements and recommendations to the IGFS-Centers. Moreover, IGFS provides a coordination host for the utilization of gravity-field related products and services towards their inclusion within a GGOS consistent frame.
In this work, an outline is given on the recent activities of IGFS, namely those related to the contributions to the implementation of the International Height Reference System/Frame; the Global Geodetic Reference System/Frame; the new Global Absolute Gravity Reference System/Frame and the combination of temporal monthly global gravity field models. Particularly, the impact that these activities have and will have in improving the estimation of the Earth’s gravity field, either at global and local scale, is highlighted also in the framework of GGOS.