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

4250 thumbnail picture
Making magnetic observations for declination.
Washington, D.C. area 1931
4251 thumbnail picture
Chart showing isogonic lines for year 1900. Isogonic lines are lines of equal declination
4252 thumbnail picture
Magnetic station near El Misti Volcano, Peru. Party of James Baden
Peru, Arequipo 1947
4253 thumbnail picture
Transit magnetometer station.
Alaska, Southeast Alaska Ca. 1980
4254 thumbnail picture
Transit magnetometer station. Party off of PATHFINDER
Hawaii, Hawaii 1970
4255 thumbnail picture
Using compass declinometer for magnetic observations. Lt. Benjamin H. Rigg observing. Accompanied MacMillan Arctic Expedition.
Greenland 1926
4256 thumbnail picture
Lt. B. H. Rigg making magnetic observations in Canadian Arctic. Accompanied MacMillan Arctic Expedition
Canada, Eastern Canadian Arctic 1926
4257 thumbnail picture
Lt. B. H. Rigg preparing to make magnetic observations in Canadian Arctic. Accompanied MacMillan Arctic Expedition
Canada, Eastern Canadian Arctic 1926
4258 thumbnail picture
A Z-Variometer. Instrument measures relative changes in vertical component of Earth's magnetism
1954
4259 thumbnail picture
Magnetic station at Hobhouse Inlet. Party of Joel Campbell
Canada, Devon Island, Canadian Arctic 1946
4260 thumbnail picture
Lt. Charles A. Schoene observing magnetics at Little America IV. Schoene accompanied Operation High Jump
Antarctica February 1947
4261 thumbnail picture
Magnetic observatory at Little America IV. Tent used for absolute observations while center building used for variation
Antarctica February 1947
4262 thumbnail picture
Chart showing isogonic lines for year 1900. Isogonic lines are lines of equal declination
4263 thumbnail picture
Brown Gravity Meter - a pendulum apparatus.
Ca. 1935
4264 thumbnail picture
Brown Gravity Meter pendulum apparatus.
Ca. 1935
4265 thumbnail picture
Observing gravity inside the cave at Station Jaggar. Party of E. J. Brown
Hawaii, Summit of Mauna Loa 1927
4266 thumbnail picture
Gravity and radio apparatus on Necker Island. Observations as part of World Longitude Network. Party of E. J. Brown
Hawaii, Necker Island 1928
4267 thumbnail picture
Lt. Joseph Lushene observing gravity in Bahamas. Cooperative project with the Navy and F. A. Vening Meinesz
Bahamas Islands, White Point 1932
4268 thumbnail picture
Lt. Carl Aslakson observing gravity during South American expedition.
South America, somewhere 1941
4269 thumbnail picture
Measurements in strain in rock at Dugway Proving Ground.
Utah, Dugway Proving Ground 1952
4270 thumbnail picture
Why the rock was being strained. 1/2 scale explosion at Dugway Proving Ground
Utah, Dugway Proving Ground 1952
4271 thumbnail picture
Triangulation observations following major earthquake.
Nevada, Dixie Valley 1955
4272 thumbnail picture
Triangulation observations following major earthquake.
Nevada, Dixie Valley 1955
4273 thumbnail picture
Lieutenant Harley Nygren conducting gravity observations for Sandia Corporation.
New Mexico 1955
4274 thumbnail picture
Reproduction of first map showing magnetic declination in the United States. First published by the Coast Survey in 1856
1856
4275 thumbnail picture
Underground magnetic observatory built at the University of Wisconsin in 1870's. Built under direction of Coast Survey. Observations made to Coast Survey specifications. One of many academic geophysical observatories built under guidance of C&GS
Wisconsin, Madison 1879
4276 thumbnail picture
Magnetic observations along the Yukon River.
Alaska, Yukon River Ca. 1924
4277 thumbnail picture
Coast Guard Cutter Bear at Demarcation Point. Provided transportation for magnetic field work by C&GS officer J. T. Watkins
Alaska, Demarcation Point July 1921
4278 thumbnail picture
Magnetic observations at sea on the C&GS Ship BACHE.
Atlantic Ocean Ca. 1915
4279 thumbnail picture
Early use of proton precession marine magnetometer. Deployment of towed magnetometer on C&GS Ship PIONEER
4280 thumbnail picture
Brown pendulum apparatus gravity meter. Named for its inventor, Lt. E. J. Brown, C&GS. Lt. Brown died in an automobile accident in 1935.
1937
4281 thumbnail picture
Mendenhall half-second pendulums. Figure 2 of William Bowie's "Investigations of Gravity and Isostasy"
Ca. 1895
4282 thumbnail picture
Gravity observing apparatus. Figure 3 of William Bowie's "Investigations of Gravity and Isostasy"
Ca. 1917
4283 thumbnail picture
Original form of Mendenhall half-second pendulum gravity measuring apparatus. Figure 3 of William Bowie's "Investigations of Gravity and Isostasy"
Ca. 1895
4284 thumbnail picture
Ground shaker at Position "B". Used to determine earthquake engineering characteristics of buildings. C&GS was the first organization to undertake engineering seismology studies. Party of William D. Patterson
California 1937
4285 thumbnail picture
Building shaker in the doorway of a building. Used to determine earthquake engineering characteristics of buildings. C&GS was the first organization to undertake engineering seismology studies. Party of William D. Patterson
California 1937
4286 thumbnail picture
Ground shaker at Position "A". Used to determine earthquake engineering characteristics of buildings. C&GS was the first organization to undertake engineering seismology studies. Party of William D. Patterson
California 1937
4287 thumbnail picture
Deployment of towed magnetometer on C&GS Ship PIONEER.
Pacific Ocean 1964
4288 thumbnail picture
Bank of recording instruments at Honolulu geophysical observatory. Recording tidal levels at remote sites throughout Pacific Basin. Used for tsunami warning system.
Hawaii, Honolulu Ca. 1967
4289 thumbnail picture
Bank of recording instruments at Honolulu geophysical observatory. Recording tidal levels at remote sites throughout Pacific Basin. Used for tsunami warning system.
Alaska, Valdez 1964
4290 thumbnail picture
Radical changes in sea level following 1964 Alaska Good Friday Earthquake.
Alaska, Valdez 1964
4291 thumbnail picture
Earthquake damage in Alaska following 1964 Good Friday Earthquake
Alaska, Southern 1964
4292 thumbnail picture
Tsunami damage at Kodiak following 1964 Good Friday Earthquake
Alaska, Kodiak 1964
4293 thumbnail picture
Tsunami damage at Seward following 1964 Good Friday Earthquake
Alaska, Seward 1964
4294 thumbnail picture
Tsunami damage at Kodiak following 1964 Good Friday Earthquake
Alaska, Kodiak 1964
4295 thumbnail picture
Tsunami damage at Seward following 1964 Good Friday Earthquake
Alaska, Seward 1964
4296 thumbnail picture
Reproduction of first map showing magnetic declination in the United States. First published by the Coast Survey in 1856
1856
4297 thumbnail picture
Proton vector magnetometer used to measure the absolute value of magnetic field
Virginia, Fredericksburg Ca. 1967
4298 thumbnail picture
Proton vector magnetometer used to measure the absolute value of magnetic field
Virginia, Fredericksburg Ca. 1967
4299 thumbnail picture
Using a magnetometer to measure the declination. Declination is the angle between true north and magnetic north
Virginia, Fredericksburg Ca. 1967

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Last Updated:
April 30, 2013