Vertical Gravity Gradient Measurements in the Yellowstone National Park in August 2014

This report contains the results of relative gravity measurements carried out in the Yellowstone National Park (YNP) in August 2014. These data are used to determine the vertical gravity gradient at the sites where absolute gravity measurements have been performed for a decade between 2009 and 2021. The absolute gravity stations are spatially well spread in the center of YNP (Figure 1). The sites (Grant Village, Lake, Norris, and Old Faithful) were chosen within walking distance of permanent GNSS stations.