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

2500 thumbnail picture
Study in gray - a gray survey launch on-line on a gray ocean with a gray sky.
2501 thumbnail picture
A digital terrain model of Ernest Sound. The area in deep blue has yet to be surveyed with modern multi-beam systems but the ledge and deep texture of most of the rest of the sound has been revealed by modern survey methods.
2502 thumbnail picture
Don't know who this guy is but maybe he/she was recruited prior to the beginning of the survey season.
2503 thumbnail picture
The forward end of a hull-mounted sidescan sonar unit that has struck an obstruction.
2504 thumbnail picture
Gettin' it on in a work boat used for reconnaissance, beach landings, tide gage installation, transporting work crews, etc.
2505 thumbnail picture
Survey boat working in close proximity to shoreline.
2506 thumbnail picture
RHIB (rigid hull inflatable boat) picking up shore work crew.
2507 thumbnail picture
Bow hook preparing to cast line aboard ship prior to securing hook.
2508 thumbnail picture
Inspecting bottom grab sample obtained during bottom sampling operations on ship.
2509 thumbnail picture
Bottom sampling operations in the Beaufort Sea.
2510 thumbnail picture
Viewing freshly obtained bottom sample material.
2511 thumbnail picture
Waiting to unload additional equipment for horizontal control station at low tide on a steep sided rock. The white stuff isn't paint. The boat has to wait for a swell to approach rock and quickly pass additonal gear ashore.
2512 thumbnail picture
Establishing horizontal control station on Coast Guard daymarker.
2513 thumbnail picture
Coast Guard daymarker at low tide.
2514 thumbnail picture
Coast Guard daymarker at a partial low tide.
2515 thumbnail picture
Determining position of Coast Guard day marker during shoreline mapping operations.
2516 thumbnail picture
Offloading equipment for horizontal control station from RHIB (rigid hull inflatable boat).
2517 thumbnail picture
Coast Guard daymarker at half-tide.
2518 thumbnail picture
Coast Guard daymarker at a high tide. Apparently there was a small design error on this marker.
2519 thumbnail picture
Positioning National Ocean Service bench mark 9541A with GPS receiver. The center adjustable leg of GPS receiver is directly over the center of the mark.
2520 thumbnail picture
GPS satellite receiver unit set up over a bench mark. At first glance, appears to be a tripod. However, it has a fourth leg that is placed directly over the mark.
2521 thumbnail picture
Securing GPS satellite receiver unit on a windswept promontory.
2522 thumbnail picture
Leveling the center leg of a GPS satellite receiver unit to assure that it is directly over the mark.
2523 thumbnail picture
Leveling the center leg of a GPS satellite receiver unit to assure that it is directly over the mark.
2524 thumbnail picture
Grave of Karl Mueller, U.S. Coast and Geodetic Survey. He and Maurice Rudisell died on May 28, 1938, as the result of a survey boat striking a previously unknown reef during survey operations.
2525 thumbnail picture
Memorial plaque for Karl Mueller at Dutch Harbor.
2526 thumbnail picture
Officers and crew of NOAA Ship FAIRWEATHER tending to grave of Karl Mueller, who died in the line of duty surveying the shores of Alaska.
2527 thumbnail picture
Part of tide gauge installation. Notice tubing running from water onto shore. Algae covered rocks baring at low tide. Apparently a small slot in the rocks extends up to the tide staff so that it doesn't bare at low water.
2013 June 19
2528 thumbnail picture
Hydrographic Assistant Survey Technician (HAST) Curran conducting visual inspection of previously installed tide staff. Algae covered rocks baring at low tide. Apparently a small slot in the rocks extends up to the tide staff so that it doesn't bare at low water.
2013 June 19
2529 thumbnail picture
Lt. Mike Gonsalves taking tide staff observations at low water.
2013
2530 thumbnail picture
Leveling the tide staff to assure it hasn't moved vertically since installation. Teacher at Sea Rosalind Echols holding the level rod for the benchmark leveling process. In her words "It is incredibly difficult to hold 12 feet of leveling rod level."
2013
2531 thumbnail picture
Leveling the tide staff. Ensign Rosemary Abbitt pondering the next setup.
2013 June 19
2532 thumbnail picture
Ensign Rosemary Abbitt operating the level instrument during tide staff leveling operations.
2013 June 19
2533 thumbnail picture
Chisel and alphanumeric stamping set for inscribing survey marks with names , identifying alphanumeric characters, and year of installation.
2013
2534 thumbnail picture
An installed tide staff.
2013
2535 thumbnail picture
Diagram of multi-beam sounding system. As opposed to a single vertical beam, numerous beams are formed for each of which a depth is computed. by running parallel overlapping survey lines, a complete numerical model of the surveyed seafloor can be produced.
2013
2536 thumbnail picture
Measuring distance between tidal bench marks on a boulder beach.
2013 August 13
2537 thumbnail picture
Teacher at Sea Rosalind Echols using hammer and chisel to start drill hole for bench mark.
2013
2538 thumbnail picture
Tidal bench mark 9251E established in 2013. One of five bench marks that was cemented into bedrock on Bird Island.
2013 August 13
2539 thumbnail picture
Bench mark 9251A established in 2013.
2013
2540 thumbnail picture
A horizontal control station with antenna for communicating with ship established on an offshore rock. Also a GOES satellite transmitter (rectangular boxlike antenna) for communicating tide information to processing facility, and solar panels for supplying power to observational systems.
2013
2541 thumbnail picture
Brandy Geiger (L) and Bill Carrier working on horizontal control station set up at Bird Island.
2013 August 25
2542 thumbnail picture
A level rod balanced on the highest point of a "turtle", positioned carefully to be seen from multiple points.
2013 June 19
2543 thumbnail picture
Lt. Mike Gonsalves determining location of tidal benchmark while sitting on it.
2013
2544 thumbnail picture
Portable backpack mounted GPS receiver used in shoreline mapping.
2013
2545 thumbnail picture
Offshore kelp bed off SW Alaska. Kelp beds can be indicators of shallow dangerous waters.
2013
2546 thumbnail picture
The Field Operations Officer (FOO) Megan McGovern, leads a morning safety meeting prior to sending out the launches from the NOAA Ship RAINIER.
2013 August 13
2547 thumbnail picture
Deploying CTD from survey launch.
2013
2548 thumbnail picture
Recovering CTD after observations.
2013
2549 thumbnail picture
Trail map and US Coast and Geodetic Survey marker on Pine Mountain. Reference mark Roosevelt 1930, No. 1.
2013

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Last Updated:
November 10, 2017