Contributing Organization: NOAA-OOES-N/OES 13
11400 Rockville Pike
Room 423 Rockville, MD 20852

Summary: The NGS Absolute Gravity data (78 stations) was received in July 1993. Principal gravity parameters include Gravity Value, Uncertainty, and Vertical Gradient. The data are randomly spaced worldwide. Positional data are variable in their precision. Some locations provided positions recorded to the nearest 1-minute (i.e. Hsinchu, Lung Tan, and Ta Hsi), while others recorded to 0.1- seconds. The original absolute gravity data was contributed by Daniel Winester of NOAA's National Ocean Service in a text format (see Absolute.ASC). For certain applications, this data structure would prove difficult; therefore, the data were transcribed (by Scott L. Hittelman) into a tabular, flat-file format (see Absolute.BIN). In transcribing the data, mean values and their associated errors were omitted. Several program files to read the September, 1992 version of the data base are also included.