New grid of terrestrial gravity anomalies in Antarctica released
---------------------------------------------------------------------

Announcing the release of a gridded dataset of terrestrial
(free-air and Bouguer) gravity anomalies in Antarctica. It is for the
first time that a gravity anomaly dataset comprises almost the entire
Antarctic continent. It is based on 13 million data points and covers an
area of 10 million km**2 corresponding to 73% of the Antarctic continent.

The new dataset is given as grid with a resolution of 10 km and
comprises free-air gravity anomaly, Bouguer anomaly as well as an
accuracy measure. The data are available at:
https://doi.org/10.1594/PANGAEA.848168.

The derivation of the data grid is described by an article entitled "New
Antarctic Gravity Anomaly Grid for Enhanced Geodetic and Geophysical
Studies in Antarctica" by M. Scheinert et al., published in "Geophysical
Research Letters" (accepted article online at
https://doi.org/10.1002/2015GL067439 since 8 January 2016, proofreading
still in progress).
Please cite this paper whenever you publish results of your work using
these data.

I would also like to acknowledge the huge efforts by numerous colleagues
at many different institutions worldwide, who managed to accomplish
gravity measurements in Antarctica and contributed data. This fruitful
international cooperation is coordinated in the framework of IAG
(International Association of Geodesy) Subcommission 2.4f ?Gravity and
Geoid in Antarctica? (AntGG) and SCAR (Scientific Committee on Antarctic
Research) ?Expert Group on Geodetic Infrastructure in Antarctica?
(GIANT), which I?m delighted to chair. With more data to be compiled,
updates of the Antarctic gravity grid are planned to be released in the
near future.

Mirko Scheinert