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Components of an automated magnetic observatory
Components of an automated magnetic observatory
Components of an automated magnetic observatory
Components of an automated magnetic observatory
Components of an automated magnetic observatory
Components of an automated magnetic observatory
Components of an automated magnetic observatory
Coil assembly for automatic standard magnetic observatory
Coil assembly for automatic standard magnetic observatory
Coil assembly for automatic standard magnetic observatory
Coil assembly for automatic standard magnetic observatory
Coil assembly and sensor for automatic standard magnetic observatory
Coil assembly and sensor for automatic standard magnetic observatory
College, Alaska, magnetic observatory
College, Alaska, seismic and magnetic observatory
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
Compass rose for use by mariners in comparing magnetic direction with true direction.
Coast and Geodetic Survey seismologists at work
Coast and Geodetic Survey seismologist obtaining data to plot earthquake epicenter
Coast and Geodetic Survey seismologist plotting earthquake epicenter
Coast and Geodetic Survey seismologist plotting earthquake epicenter with spacing dividers
Coast and Geodetic Survey seismologist communicating with colleague
Coast and Geodetic Survey seismologist communicating with colleague
Chief Survey Technician Jim Jacobson installing a tide staff
Coast and Geodetic Survey officers and their wives at a New Year's Eve party, ca
Copper plate engraving doodlings by James Whistler who learned copper plate engraving at the Coast Survey offices during a three-month period in 1854-
Coast Guardsman checking sunken vessel prior to recovering as marine debris.
Coast Guard boats working out of Eastport, Maine, assisting navigation response surveys and monitoring marine debris
Channel indicating tight turn to starboard past second red buoy as next buoy in sight, a green buoy, must be kept to port when proceeding inbound.
Carrying coal for heat - seems a little strange - wonder how they got the coal? The nets on their heads are to protect them from biting hordes of "whi
Completed highline for river crossing.
Charlie Nordstrom, Larry Nelson, Joe Cartini, and Oscar Hagen preparing radio acoustic ranging sonobuoy.
C&GS SURVEYOR Launch -4 away from ship for inshore survey work.
Coast and Geodetic Survey Ship SURVEYOR stopped by Canadian patrol in Canadian Inside Passage as Canada the British Commonwealth of Nations was at war
Coast and Geodetic Survey Ship SURVEYOR stopped by Canadian patrol in Canadian Inside Passage as Canada the British Commonwealth of Nations was at war
Chief cook Mauno at the OK Bay camp.
Coast and Geodetic Survey ShipPATHFINDER tied up at low tide at a Cook Inlet pier
Coast and Geodetic Survey Ship PATHFINDER in rough weather in North Pacific
Coal being hoisted aboard Steamer EXPLORER from coal barge at Goodnews Bay
Cotton in kayak at Mumtrakamut
Crewmembers from EXPLORER trying out native kayaks.
Coal sacks deposited at Goodnews Bay by the Steamer YUKON for the Steamer EXPLORER
Chief writer (yeoman) Ohlsen at the store-house at Goodnews Bay.
Crew of the USC&GS TULIP working in the Philippine Islands just prior to turning over all functions to the Philippine Coast and Geodetic Survey.
Center mounted level instrument on velocipede with rodman velocipede and stowed level rods to the right.
Crossing a trestle during leveling operations
Configuration of speeder used in leveling operations along railroad.
Cartoon showing pigs running from the tidal bore in an arm of the Bay of Fundy
Chart of the Gulf Stream produced in 1854 from systematic Coast Survey observations beginning in 1845.
Current observation from deck of U.S.S
Coast Survey employee Susan Tully using new automated tabulating machine for recording tides predicted on Tide Prediction Machine No
Changing constituent elements for computing tides for a different location on USC&GS tide prediction machine No
Constructing the tide indicator at Alcatraz Island.
Clock and tide indicator in public viewing area of a Coast and Geodetic Survey tide house.
Captain Crosby, Chief of the Tides and Currents Division of the USC&GS, looks on as Roberts Radio Current Meter is deployed
Card enclosed in drift bottle directing finder to break the bottle.
Current pole measurements by seaman using stop watch to determine velocity of current as pole carries out line.
Current buoy maintenance on the USC&GS Ship MARMER
Current buoy maintenance on the USC&GS Ship MARMER
Current buoy in Charleston Harbor
Current float with drogue being readied for deployment.
Curves of observation of the tides at Rincon Point, San Diego, and Astoria.
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Clarence E
Closeup of the small brass bolt with + in witness post South
Closeup of the small brass bolt with + in witness post North
CPS-98
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
CPS-98.
Charles Wagner Offset proving press.
Cabra Lighthouse
Catbalogan Lighthouse at the mouth of the Catbalogan River.
CPS-98 barracks at Kirtland Field, Albuquerque.
Charlie Bowman using a collimator to locate the center of the tripod which will support the theodolite on a 20-foot observing stand.
Crew group photo - Messamer, Riggs, Huoy, Wolfe, Wiggins, Lovett, Wildman, Luloff, Newton, Shaw, Blanche, Marshall, Sternberg, N
Crew mascots D.G
Campground at Safford
Cotton, Shaw, and Hadley
Cover of Sesquicentennial Dinner Program of the Coast and Geodetic Survey.
Chart 5101A - San Diego to Santa Rosa Island
Comaprison of scale variation between Lambert Conformal Conic Projection and Mercator projections for identical conditions.
Coast and Geodetic Survey sign post asking folks to not disturb a survey marker.
Coxswain operating Jensen survey launch
Coxswain operating Jensen survey launch
Crew with motor velocipedes and inclined level
Crew of the Coast and Geodetic Survey Ship WESTDAHL
Coast and Geodetic Survey headquarters on New Jersey Avenue with Capitol Building on right.
Clayton and party horse packing on the California coast.
Caspar Durgin's party somewhere in eastern Colorado or New Mexico
Conceptual diagram of side scan sonar operation.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Computer displays associated with survey data acquisition and processing on the NOAA Ship THOMAS JEFFERSON.
Chief Survey Tech Buck Gardner.
Coast Survey wrangler
Coast and Geodetic Survey triangulation crew at the Chandelier Tree in Underwood Park.
Coast and Geodetic Survey triangulation crew at the Chandelier Tree in Underwood Park.
Coast and Geodetic Survey triangulation crew at the Chandelier Tree in Underwood Park.
Cold War era instructions giving employees instructions as to what to do in the event of a nuclear attack.
Cold War era instructions telling employees where to assemble in the event the main work place was destroyed in an attack.
Classic paper on earthquake mechanisms and nature of faulting on the Mid- Atlantic Ridge which established beyond a doubt the nature of motion of tran
Coast and Geodetic Survey office building.
Coxswain of launch off NOAA Ship RAINIER keeping the boat on line while operating in SE Alaska.
Comparison of older Side Scan and multi-beam systems on ship wreck
Canadian Hydrographic Service tide staff graduated in meters.
Coast Guard Cutter TANEY.
Coast Guard Cutter TANEY in Dutch Harbor after search and rescue operation.
Carl Risvold while on level crew.
Cartoon showing use of Submarine Signal Fathometer with components and concept.
Cover page to advertising brochure for Submarine Signal Fathometer - Visual Echo Sounding.
Card to obtain seating at the 100th Anniversary Coast and Geodetic Survey banquet.
Coast and Geodetic Survey flag and Director's flag on April 15, 1925 banquet menu and program celebrating 10th year of E
Cover for menu and program of tenth anniversary celebration of E
Camp No
Coast and Geodetic Survey tide prediction machine in use in WWII with woman operator.
Coast and Geodetic Survey tide house.
Checking a tide gauge.
Checking a water level gauge.
Checking 808 Fathometer recorder.
Checking for index error of sextant prior to beginning hydrographic survey operations.
Components of an early electronic navigation system
Current meter.
C&GS Atlantic Marine Center ship base prior to renovation.
Chief Survey Technician removing seawater from Nansen bottle for analsyis.
Cross-section of United States near 39th Parallel showing elevation, gravity observation stations, gravity reduced for Bouguer anomalies, and gravity
Current survey party at work.
Chief Survey Technician securing Nansen bottle for temperature- water characteristic studies on line
C&GS Atlantic Marine Center ship base.
Compensating a magnetic compass
Chief Radio Technician, Ricardo Vendura, operating a depth recorder and monitoring a gyro repeater in the radio room of the U
Commander Marvin Paulson hanging a Nanson bottle for collecting water specimen and measuring temperature at depth.
Commander Marvin Paulson hanging a Nansen bottle for collecting water specimen and measuring temperature at depth.
Collecting bottom sample material to determine anchoring characteristics of bottom
Camp at the Teagarden Homestead.
Crossing the Talkeetna River.
Chunilna Creek.
Contact platforms were under water because of heavy rains during traverse survey using invar tapes
Canadian and U.S
Compilation work for a nautical chart.
Compiling a nautical chart from field survey sheets and other data.
Canyon crossing showing v-shaped canyon in the Aleutian Islands.
Chartlet showing track of PATHFINDER from Aleutians to West Coast at end of 1947 field season
Chart 5101A, first published in 1939, showing contours to be used for contour- following navigation
Cut-away view of plane table with alidade.
Crossing over one of the many rivers in central Alaska on a suspension bridge
Crossing over one of the many rivers in central Alaska on a suspension bridge
Clearing out downfallen timber on the trail to Mount Lolo in the Bitterroot Mountains
Cabin the observing party stayed in at Station Nevada.
Clarence "Ole" Olsen, Floyd Risvold, Roy (somehow for Louisiana)?, Marvin ?, and W
Collimating a 100-foot tower over the station mark
Camp near Wintersburg in December 1934
Clarence Olson, Bill Husemeyer, and Floyd Risvold breaking camp at Graingerville, Idaho.
Country on the Mexican border as seen from Station Atacosa.
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