Surface surveys include land surveys and some older aeromagnetic and older marine data (e.g. from Galileo, Carnegie, and Zarya). The original datasets obtained from NGDC and BGS were processed to remove duplicate records and flag outliers.
World-wide Survey data from NGDC and BGS
CD: SURVEYMISC1
Files: /land/su1000/su1000.001 - 18
/land/su1002/su1002.001 - 34
Format: NOAA
Survey data processed with EQBIN
Data distribution is shown in Figures 7.9 - 7.13
CD: SURVEYPROC1
Files: /survey/su1500.f01 - 18
Format: ASC
Vector Survey data prepared for the main field model GSFC(S95-xx)
Anonymous points were discarded based on agreement with an earlier spline model.
Data distribution is shown in Figure 7.25
CD: SURVEYPROJ1
Files: surl.iee
Format: BIN
Non-vector and scalar Survey data prepared for the main field model GSFC(S95-xx)
Anonymous points were discarded based on agreement with an earlier spline model.
Data distribution is shown in Figure 7.25
CD: SURVEYPROJ1
Files: surn.iee
Format: BIN