The triangulation, upon which the whole work depends, was done in coöperation with the United States Coast and Geodetic Survey.
As a means of accomplishing these ends, an accurate geodetic triangulation of the district, supplemented by the necessary precise traverse work and precise leveling, all fully checked and compensated for errors.
A careful geodetic and hydrographic survey of the Great Northern Lakes, including every harbor upon them and the rivers connecting them, was carried on for many years and was finally completed some ten years ago.
Geodetic and hydrographic survey of the great lakes.
The Text-Book of Geodetic Astronomy[17] was prepared by Mr. John F.
Footnote 11: United States Coast and Geodetic Survey, General Chart of the Coast, No.
If the objection be raised that not the geodetic azimuths but the astronomical azimuths are observed, it is necessary to consider that the observed vertical sections do not correspond to points on the sea-level but to elevated points.
Experiments at the Geodetic Institute and Central Bureau at Potsdam in 1891 gave the following personal equations in the case of four observers:-- Older Procedure.
If we imagine the geodetic AB, it will generally trisect the angles between the vertical sections at A and B, so that the geodetic at A is near the vertical section AB, and at B near the section BA.
An idea of the course of a longer geodetic line may be gathered from the following example.
This correction is therefore of greater importance in the case of observed azimuths and horizontal angles than in the previously considered case of the astronomical and the geodetic azimuths.
Generally speaking, the geodetic lies between the two plane section curves joining A and B which are formed by the two vertical planes, supposing these points not far apart.
The azimuth of the geodetic at Cadiz differs 20" from that of the vertical plane, which is the astronomical azimuth.
The azimuth of a geodetic line cannot be observed, so that the line does not enter of necessity into practical geodesy, although many formulae connected with its use are of great simplicity and elegance.
That is to say, the osculating plane at any point of a geodetic line contains the normal to the surface at that point.
A rediscussion has been given by Sir David Gill in his Report on the Geodetic Survey of South Africa, &c.
In a mathematical point of view the most natural definition is that the sides be geodetic or shortest lines.
Further geodetic connexion with the European systems remains to be accomplished.
But beyond the eastern shores of the Caspian no system of direct geodetic measurements by first-class triangulation has been possible, and the surveys of Asiatic Russia are separated from those of Europe by the width of that inland sea.
The close of the 19th century witnessed the forging of the final links in the great geodetic triangulation of India, so far as the peninsula is concerned.
In India geodetic triangulation furnishes the basis for exact surveys as far east as the eastern boundaries of Burma in longitude about 100 deg.
On my way across the park I stopped in front of that fool Geodetic stone, wondering what it might be.
More than once since I have gone to that windy park, with its quivering flagstaff and Geodetic monument, and, sitting on a bench opposite the house, asked myself again and again the bootless questions.
You will know the place by reason of a granite stone set up there by the Geodetic surveyors, for some longitudinal purposes of their own, and by an enormous flagstaff erected in the center.
But it was not until 1878 that Congress designated the Bureau as the "Coast and Geodetic Survey," the official title it bears at this time.
For this plane table movement there was soon substituted another form in use in the Coast and Geodetic Survey, which is very much lighter.
But if the tree can be judged by its fruit, there will be no lack of testimony to the economic value of the Geodetic Survey in the near future; aside from its scientific and practical usefulness in perfecting the Survey of the Coasts.
The topographic work of the Coast and Geodetic Survey will be utilized as far as it extends.
This was done in part by the Coast and Geodetic Survey and in part by the Geological Survey.
The Borden triangulation and the Coast and Geodetic Survey triangulation will be utilized as far as possible, and additional triangulation will be made to such extent as may be necessary.
It was commenced with the large heavy movement designed I believe by the Coast and Geodetic Survey.
An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.
The person at a geodetic station who has charge of the heliotrope.
That is not all: the International Geodetic Association has recognized the necessity of a new measurement of the arc of Quito, determined in days of yore by La Condamine.
There are also various geological and geodeticproblems to whose solution magnetic surveys may afford valuable guidance.
In some instances regional magnetic disturbances have been found to be associated with geodetic anomalies.
Secular changes of declination have been particularly interesting in the United States, an area about which information is unusually complete, thanks to the labours and publications of the United States Coast and Geodetic Survey.
For the Western States the earliest data are comparatively recent, but for some of the eastern states data earlier than any in the table appear in the Report of the Coast and Geodetic Survey for 1902.
Hence we have the discrepancy that, while the geodetic measurements deal with the points A and B, the astronomical observations belong to the points A', B'.
The United States Coast and Geodetic Survey has published an account of the transcontinental triangulation and measurement of an arc of the parallel of 39 deg.
The central bureau is affiliated with the Prussian Geodetic Institute, which, since 1892, has been situated on the Telegraphenberg near Potsdam.
Hitherto geodetic observations had been confined to the determination of the magnitude of the earth considered as a sphere, but a discovery made by Jean Richer (d.
Colonel Robert Bourgeois, assisted by eleven officers and twenty-four soldiers of the geodetic branch of the Service geographique.
We may here recall that in France geodetic studies have recovered their former expansion under the vigorous impulse of Colonel (afterwards General) Francois Perrier.
Pritchett, Superintendent of the United States Coast and Geodetic Survey, is a serious blow to the bureau and to science at Washington.
But he was also greatly needed in the Coast and Geodetic Survey, where, after the excellent administration of Dr.
In earlier geodeticsurveys Argand lamps had been employed with parabolic reflectors and with convex lenses, but apparently these did not have a sufficient range.
An electric lamp supplied from a storage battery has been designed for geodetic operations in mountainous districts where it is desired to send signals as far as one hundred miles.
She was the first to conceive and execute the great geodetic operations which had for their object the construction of civil and military maps and the measurement of arcs of the meridian in Europe, America, and Africa.
They serve also as bases for geodetic and topographical operations carried on around them.
To strengthen my assertion, gentlemen, I fall back upon the arguments brought forward by Mr. Hirsch in his remarkable report to the Geodetic Conference at Rome, arguments that evidently carried the vote of that assembly.
In attempting to deduce the difference of longitude from geodetic measures, you must assume that the true figure and dimensions of the earth are known, which is far from being the case.
Hildgard, Superintendent of the United States Coast and Geodetic Surveys; Professor A.
The difference of longitude between two places could not be determined by geodetic observations, because to do this you must take hypothesis as to the figure of the earth, and the figure of the earth is not a simple figure.
In the coast line the American maps follow the charts of the United States Coast and Geodetic Survey; the third map conforms to the British Ordnance Survey.
Duffield, the Superintendent of the Coast and Geodetic Survey, supplied the artist with the coast charts from which the maps in this volume were drawn.
The harmonic constants for these places will be given in a paper on Arctic Tides about to be issued by the Coast and Geodetic Survey.
A brief discussion of this question, together with a tidal map of the Arctic Regions, will be found in a paper about to be issued by the Coast and Geodetic Survey and which has been already referred to.
The Superintendent of the Coast and Geodetic Survey.
Defn: The person at a geodeticstation who has charge of the heliotrope.
Defn: An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.
Polyconic projection is that in use in the United States coast andgeodetic survey.
Mendenhall, Superintendent of the United States Coast and Geodetic Survey, in Washington, and to that of his assistant, Professor Charles A.
The name is also applied sometimes to a heliostat, invented by Drummond, for rendering visible a distant point, as in geodetic surveying, by reflecting upon it a beam of light from the sun.
Public Printer to print the Annual Report of the United States Coast and Geodetic Survey in quarto form and to bind it in one volume.
Cadet in the revenue-cutter service and aid in the Coast and the Geodetic Survey.
The latter were subsequently published by the United States Coast and Geodetic Survey in the form of an Atlas of the Philippines.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "geodetic" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: geodetic; geographic; geographical; navigational; regional; topographic
