ANALYSIS OF DATA FROM THE 1994 INTERNATIONAL COMPARISON OF ABSOLUTE GRAVIMETERS WITH A SINGLE COMPUTATIONAL PROTOCOL

Data from the 1994 international Comparison of Absolute Gravimeters we re processed with the National Oceanic and Atmospheric Administration (NOAA) Geosciences Lab protocols and processing algorithms. The root-m ean-square discrepancy between results obtained from individual groups and the NOAA processing is 2,3 mu Gal; the average discrepancy is 1,5 mu Gal. The sources of the discrepancies are probably (i) differences in the vertical gradients used for datum level transfers, (ii) incons istencies between processing algorithms, and (iii) differences in data editing criteria.