Surveys

Surveys
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Historical Bathymetry Surveys Description - To show the tracklines of historical bathymetry surveys, decimated for ease of viewing. Source - National Geophysical Data Center (NGDC) Related Information Additional NGDC Source Note: We show you a map to give an idea with the trackline points for bathymetry Data Bathymetry data (Zipped shape files of the original data points decimated by 1000)
Historical Gravity Surveys Description - To show the tracklines of historical gravity surveys, decimated for ease of viewing. Source - National Geophysical Data Center (NGDC) Additional NGDC Source Note: We show you a map to give an idea with the trackline points for gravity. Data Gravity data (Zipped shape files of the original data points decimated by 200)
Historical Magnetic Surveys Description - To show the tracklines of historical magnetic surveys, decimated for ease of viewing. Source - National Geophysical Data Center (NGDC) Additional NGDC Source Note: We show you a map to give an idea with the trackline points for magnetics. Data Magnetic data (Zipped shape files of the original data points decimated by 200)