NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.


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

5300 thumbnail picture
Small boat hydro - Cook Inlet area. Boat off of PATHFINDER
Lower Cook Inlet, Alaska 1970
5301 thumbnail picture
Low tide - rock shows where vessel struck and then sank. Vessel captain claimed to be in mid-channel far from any hazards. Paint, metal fragments, and rivets proved differently
Alaska
5302 thumbnail picture
Egyptian tomb painting from 1450 B.C. showing officer with sounding pole. Officer is telling crew to come ahead slow. Engineers with cat-o'-nine-tails assuring proper response from engines
Egypt 1450 B.C.
5303 thumbnail picture
St. Brendan striking out into the Atlantic - about 6th Century A.D. St. Brendan checking depths with his sounding pole
Ireland 500 A.D.
5304 thumbnail picture
Frontispiece from the Hastings Rutter - 1450 A.D. early English pilot guide. Possibly first picture of leadline sounding
Thames River, England 1450 A.D.
5305 thumbnail picture
Sailor sounding from merchantman - Nineteenth Century. Sketch by Gordon Grant
5306 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5307 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5308 thumbnail picture
Double sounding chair arrangement. Effort to double density of soundings. Working off of HYDROGRAPHER in 20 to 25 fathoms
Gulf of Mexico 1917
5309 thumbnail picture
Taking the reading when the line is vertical
5310 thumbnail picture
Boatswain Jahnke casting the lead. Launch off the SURVEYOR
5311 thumbnail picture
Casting the lead - Hydro Manual 1931
5312 thumbnail picture
Casting the lead - Hydro Manual 1931
5313 thumbnail picture
Leadline is vertical for reading. Working off the WESTDAHL
Southeast Alaska 1936
5314 thumbnail picture
Tossing the leadline. Working off the WESTDAHL. Note splash of lead out ahead of ship
Southeast Alaska 1936
5315 thumbnail picture
Sounding in Salton Sea for seaplane landing site. Part of war project to establish seaplane landing sites. Sites used for ferrying seaplanes across United States
Salton Sea, California 1942
5316 thumbnail picture
Trolley sounding arrangement. Off of ISIS
Virginia, Chesapeake Bay area 1915
5317 thumbnail picture
Trolley and line ready for next sounding. Off of ISIS
United States East Coast 1916
5318 thumbnail picture
Trolley rig - Hauling slack from sounding line prior to sounding. Off of ISIS
United States East Coast 1916
5319 thumbnail picture
Trolley rig - paying out leadline by hand as trolley carriage runs down cable. Off of ISIS
United States East Coast 1916
5320 thumbnail picture
Getting upright cast as sounding stand passes position of lead. Off of ISIS
United States East Coast 1916
5321 thumbnail picture
Hauling in sounding line of trolley rig using hand crank on boat deck. Off of ISIS
United States East Coast 1916
5322 thumbnail picture
Arrangement of sounding machines on PATHFINDER. Off of PATHFINDER
Philippines 1921
5323 thumbnail picture
Arrangement of sounding machines on PATHFINDER. Off of PATHFINDER
Philippines 1921
5324 thumbnail picture
Arrangement of sounding machine on PIONEER. Off of PIONEER
Southwestern Alaska Peninsula 1924
5325 thumbnail picture
Coast and Geodetic Survey sounding tube equipment. Hydrographic Manual 1931, Figure 17, p. 53
1931
5326 thumbnail picture
Shelter and equipment used in reading sounding tubes. Off of PIONEER
Southwestern Alaska Peninsula 1924
5327 thumbnail picture
Robert Williams with first Fessenden oscillator on the tug Susie D. First successful test of sonic system. Looking for icebergs but also found bottom
North Atlantic 1914
5328 thumbnail picture
Sonic sounding apparatus on the GUIDE. On the ship GUIDE
5329 thumbnail picture
Title page to manual - "The Submarine Fathometer". Fathometer invented by Herbert Grove Dorsey of the Sub Signal Corporation.
5330 thumbnail picture
Fathometer Filter. From the manual - "The Submarine Fathometer"
5331 thumbnail picture
Fathometer Oscillator. From the manual - "The Submarine Fathometer"
5332 thumbnail picture
Internal View of Fathometer. From the manual - "The Submarine Fathometer"
5333 thumbnail picture
Herbert Grove Dorsey - chief physicist of the Coast and Geodetic Survey. With Dorsey Fathometer - Dorsey came to work with C&GS in 1926
1930?
5334 thumbnail picture
Operator using Dorsey Fathometer with flashing light method. Merchant Marine Bulletin No. 9, May 1931
5335 thumbnail picture
Leo Otis Colbert with Dorsey Fathometer No. 3. The first effective shallow and deep water echosounder. Operator watched flashing light. On the ship OCEANOGRAPHER
United States East Coast
5336 thumbnail picture
808 fathometer transducer. Hydrographic Manual 1942. Called first portable sonic sounding device. First acoustic sounding device used on C&GS sounding boats for shallow water. First use of shallow water fathometer continuous records by C&GS
5337 thumbnail picture
Prototype "portable" depth recorder used as part of 808 fathometer system. Bulletin 13 of the Association of Field Engineers, 1939, p. 102
5338 thumbnail picture
"Echometre" record from S. S. De Grasse. Crossing over canyon near Georges Bank. Bulletin 4 of the Association of Field Engineers, Dec. 1931, p. 83
5339 thumbnail picture
Early graphic record from Sub Signal system. Off S.S. Yarmouth between Boston and Yarmouth. Bulletin 6 of the Association of Field Engineers, Dec. 1932, p. 60.
5340 thumbnail picture
Various bottom configurations plus bar check record. Hydrographic Manual 1942
5341 thumbnail picture
Various bottom configurations. Hydrographic Manual 1942
5342 thumbnail picture
Ship on Nantucket Shoals that was subsequently blown up. Fathometer record of remains of ship
5343 thumbnail picture
Expanded view of fathometer record of remains of ship
5344 thumbnail picture
Outer Nushagak Bay sand waves. Observed on PATHFINDER
5345 thumbnail picture
Hydrothermal spring discharging fluid off Pagan Island. Observed on NOAA Ship TOWNSEND CROMWELL
Pagan Island, Marianas Islands 1980?
5346 thumbnail picture
Running up to bank and loosing trace - then heading back out into bay. Record from PEIRCE launch in Delaware Bay 1985
Delaware Bay 1985
5347 thumbnail picture
Ragged appearing fathogram trace caused by coral heads. Record from PEIRCE launch off Eleuthera Island
Bahamas Islands, east side of Eleuthera Island 1984
5348 thumbnail picture
Near vertical dropoff at edge of reef on Eleuthera Island. Record from Ship PEIRCE off Eleuthera Island, Bahamas, 1984
5349 thumbnail picture
Ancient text demonstrating use of cross-staff

PAGES - 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 |


Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA),
NOAA Central Library
NOAA Privacy Policy | NOAA Disclaimer
Last Updated:
June 10, 2016