Report of the Superintendent ... Showing the Progress of the WorkU.S. Government Printing Office, 1913 |
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Alaska area covered August base line beacons bench marks buoy Burias Island Canadian party Cape channel charts Coast and Geodetic coast line surveyed Coast Pilot Commanding Steamer connection Davids Island distance east engaged entrance extended fathoms feet field fiscal Geodetic Survey geographic positions determined Harbor horizontal measures hydrography Inlet July Key West Lake latitude Lighthouse located longitude magnetic declination magnetic observations magnetic observatory main scheme Manila Masbate Island Mattaponi River meridian meters miles of area miles of shore miles run monument occupied for horizontal offshore Pamlico Sound Panay Philippine Islands Point primary triangulation reconnoissance repairs reported revision River rock Romblon Island run while sounding season Seattle sheets completed shoals shore line Sibuyan Islands signal poles erected signals erected square miles stations occupied SUMMARY OF RESULTS.-Reconnoissance SUMMARY OF RESULTS.-Triangulation tidal stations established tion topographic sheets finished topography triangulation stations United States Engineers vicinity Willapa Bay
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57 ページ - During the entire fiscal year the five steamers available for surveying duty have been continuously engaged in the field, except during the interval when repairs were necessary. In addition to the force attached to the steamers, one shore party was engaged in triangulation in Mindanao for nine months and another in making observations for the determination of the magnetic elements in various parts of the islands during a period of three months. Special reference is made to the extensive and important...
65 ページ - The hydrography of the west coast of Panay was completed to a junction with the work done in the years 1907 and 1908. Three uncharted shoals were discovered, and five reported shoals were found not to exist. This work was carried to a distance of 15 to 25 miles from the shore. At approximately this distance from the shore there exists a narrow submarine valley, 500 to 800 fathoms in depth, beyond which to the westward there is a great bank with less than 100 fathoms, which extend the entire distance...
27 ページ - Topography: 20.43 square miles of area covered, 34.31 miles of coast line surveyed, 4. 80 miles of snore line of rivers, 13.96 miles of shore line or creeks, 9.75 miles of roads, 2 topographic sheets completed. Hydrography: 25.3 square miles of area sounded, 439.3 miles run while sounding, 4,202 angles measured, 20,710 soundings made, 2 tidal stations established, 5 current stations occupied, 3 hydrographic sheets finished Magnetic work: 1 station occupied for observations of magnetic declination....
57 ページ - ... in Mindanao and another during a period of three months in making observations for the determination of the magnetic elements in various parts of the islands. Triangulation. — The triangulation over the large water area bounded by Luzon, Burias, Masbate, Panay, and Tablas Islands, involving lines as much as 83 statute miles in length, has practically been completed, only a few additional observations for the purpose of increasing strength being necessary. . The triangulation across Mindanao...
19 ページ - County, Md., description of boundaries and landmarks and report of work of survey In cooperation with Bureau of Fisheries and Maryland Shell Fish Commission: bv CC Yates.
6 ページ - The amount appropriated for the Coast and Geodetic Survey for the fiscal year ended June 30...
83 ページ - ... 243 stations occupied for horizontal measures, 70 stations occupied for vertical measures, 275 geographic positions determined, 121 elevations determined trigonometric-ally. 2 azimuth stations occupied. Topography: 16.5 square miles of area covered, 118J miles of shore line surveyed, 4 topographic sheets completed. The survey of the portion of the United States and Canada boundary between the mouth of Pigeon River and Lake of the Woods was resumed early in June, 1911, the first work undertaken...
15 ページ - A second investigation of the effect of topography and isostatac compensation has been made by this Survey, using all of the 124 stations now available in the United States. The results obtained from this investigation are in close agreement with those of the first investigation, where only 89 stations were used. The most important result given in the latest publication is the derived value of the flattening of the earth when the new method is used. The value agrees remarkably well with the generally...
13 ページ - An officer of the Survey detailed to duty as director of surveys, with headquarters at Manila, has direction of all field work in the Philippine Islands. The details of this work will be given elsewhere in this report. The steamers Pathfinder, Fathomer, Marinduque, Research, and Romblon have been engaged in that work. Of these vessels all except the Pathfinder are the property of the insular government, whicn provides the crews and keeps the vessels in repair.
18 ページ - ... at sea during the year by the vessels of the Survey was, as in past years, incidental to the regular work upon which they were engaged, and the magnetic observations were made when the vessels were cruising to and from their working grounds, or, where opportunity offered, on their working grounds. All of the vessels in the service which are suitable for it are instructed during each season's work to make such magnetic observations, especially of the magnetic declination, as there is opportunity...