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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

2100 thumbnail picture
Equipment at Coast and Geodetic Survey geophysical observatory
1965 ca.
2101 thumbnail picture
Equipment at Coast and Geodetic Survey geophysical observatory
2102 thumbnail picture
Siesmograph equipment at Coast and Geodetic Survey geophysical observatory
2103 thumbnail picture
Equipment at Coast and Geodetic Survey geophysical observatory
2104 thumbnail picture
Portable seismological equipment
2105 thumbnail picture
Coast and Geodetic Survey seismologist communicating with colleague
1957
2106 thumbnail picture
Coast and Geodetic Survey seismologist communicating with colleague
2107 thumbnail picture
Coast and Geodetic Survey seismologist plotting earthquake epicenter with spacing dividers
2108 thumbnail picture
Coast and Geodetic Survey seismologist plotting earthquake epicenter
2109 thumbnail picture
Coast and Geodetic Survey seismologist obtaining data to plot earthquake epicenter
2110 thumbnail picture
Coast and Geodetic Survey seismologists at work
2111 thumbnail picture
Lieutenant Philip Taetz at desk. Possibly Honolulu Observatory.
2112 thumbnail picture
Benioff horizontal seismometer
2113 thumbnail picture
Benioff horizontal seismometer
2114 thumbnail picture
Seismograph - spgr.
2115 thumbnail picture
Seismograph - spgr.
2116 thumbnail picture
Diagram of a type of seismometer
2117 thumbnail picture
World Wide Standardized Seismological Network Galvos
2118 thumbnail picture
World Wide Standardized Seismological Network Galvos
2119 thumbnail picture
World Wide Standardized Seismological Network Galvos
2120 thumbnail picture
Structure of Coast and Geodetic Survey Office of Seismology and Geomagnetism
2121 thumbnail picture
What the Geomagnetism Branch of the Coast and Geodetic Survey did
1969 ca.
2122 thumbnail picture
Products of the Coast and Geodetic Survey Geomagnetism Program
1969 ca.
2123 thumbnail picture
An artist's conception of the Earth's structure and geomagnetic field
1969 ca.
2124 thumbnail picture
Geomagnetic observatories that were currently putting hourly values in machine- readable form as of 1969.
1969
2125 thumbnail picture
Geomagnetic observatories that were putting hourly values in machine-readable form prior to the International Geophysical Year.
1969
2126 thumbnail picture
Geomagnetic observatories with digital magnetometers as of 1969.
1969
2127 thumbnail picture
Geogmagnetic observatories that have facilities for semi-automatic scaling of magnetogram records as of 1969.
1969
2128 thumbnail picture
Compass rose for use by mariners in comparing magnetic direction with true direction.
1969
2129 thumbnail picture
Magnetogram plots.
1969
2130 thumbnail picture
Magnetogram plots.
1969
2131 thumbnail picture
United States repeating stations as of 1969
1969
2132 thumbnail picture
Edmund Halley's isogonic chart of 1701 showing lines of equal magnetic declination. This was the earliest chart of this nature and one of the earliest geophysical thematic maps.
1701
2133 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2134 thumbnail picture
Surveying operations associated with determination of magnetic declination.
1957 Ca.
2135 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2136 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2137 thumbnail picture
Surveyor taking sun azimuth for true direction to determine magnetic declination from magnetic observations.
1957 Ca.
2138 thumbnail picture
Observer operating field-type Ruska magnetometer.
1957 Ca.
2139 thumbnail picture
Observer operating field-type Ruska magnetometer.
1957 Ca.
2140 thumbnail picture
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
1963 September
2141 thumbnail picture
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
1963 September
2142 thumbnail picture
Administrative Building at Fredericksburg Geomagnetic Observatory
Virginia, Corbin 1957 ca.
2143 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960 ca.
2144 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960 ca.
2145 thumbnail picture
Honolulu Geophysical Observatory. The vault?
Hawaii, Oahu, Ewa Beach 1960 ca.
2146 thumbnail picture
Honolulu Geophysical Observatory
Hawaii, Oahu, Ewa Beach 1960
2147 thumbnail picture
College, Alaska, seismic and magnetic observatory
Alaska, College 1964
2148 thumbnail picture
College, Alaska, magnetic observatory
Alaska, College 1964
2149 thumbnail picture
Quartz horizontal magnetometer
1957 Ca.

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Last Updated:
July 7, 2015