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Tuesday, May 19, 2020 | History

2 edition of transverse polyconic projection for general maps of Canada found in the catalog.

transverse polyconic projection for general maps of Canada

C. O. SenГ©cal

transverse polyconic projection for general maps of Canada

by C. O. SenГ©cal

  • 128 Want to read
  • 20 Currently reading

Published by National Museum of Canada in Ottawa .
Written in English

    Subjects:
  • Map projection.,
  • Cartography -- Canada

  • Edition Notes

    Statementby C.-O. Senécal.
    SeriesBulletin / National Museum of Canada -- no. 57, Bulletin (National Museum of Canada) -- no. 57.
    ContributionsNational Museum of Canada.
    The Physical Object
    Pagination17 p. :
    Number of Pages17
    ID Numbers
    Open LibraryOL21080267M

    Explaining Some Jargon – Projections and Maps. These are two terms which are commonly confused and the difference is simple: A projection is a system of mathematics and geometry whereby the information on the surface of a sphere (the Earth) is able to be transferred onto a flat piece of paper (a map). Describing Projections. Canada Lambert Conformal Conic > Central Meridian ° > Standard Parallel 1 50° > Standard Parallel 2 60° > Latitude of Origin 40° eg. Change the Coordinate System .

    Date: Creator: Natural Resources Canada Datum: Projection: Universal Transverse Mercator (UTM) Scale: Access: web Description: From the web page: \"The Canada Land Use Monitoring Program (CLUMP) was established in by the Lands Directorate of Environment Canada to provide researchers, planners and managers with a database on land use change. The polyconic projection's longevity reflects bureaucratic inertia as well as any map projection's potential significance as a graphic signature. As several small-scale world maps also demonstrate, a projection acquires emblematic value when an organization selects a single cartographic perspective from several plausible yet sub-optimal solutions.

    After decades of using only one map projection, the Polyconic, for its mapping program, the U.S. Geological Survey (USGS) now uses several of the more common projections for its published maps. The following maps show Canada projected in different ways: Gnomonic azimuthal projection. [click for larger image] Lambert conformal conic projection. [click for larger image] Transverse Mercator projection. [click for larger image] References: Dana, Peter H. Map .


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Transverse polyconic projection for general maps of Canada by C. O. SenГ©cal Download PDF EPUB FB2

Additional Physical Format: Online version: Senécal, C.O. (Clovis Omer). Transverse polyconic projection for general maps of Canada. Ottawa, F.A. Acland, printer to.

The American polyconic map projection is a map projection used for maps of the United States and regions of the United States beginning early in the 19th century.

It belongs to the polyconic projection class, which consists of map projections whose parallels are non-concentric circular arcs except for the equator, which is the American polyconic is simply called the polyconic. The transverse Mercator map projection is an adaptation of the standard Mercator transverse version is widely used in national and international mapping systems around the world, including the paired with a suitable geodetic datum, the transverse Mercator delivers high accuracy in zones less than a few degrees in east-west extent.

Each sheet separately titled. "Projection and meter grid: Universal Transverse Mercator." "Photoimagery rectified by optical scanning of simultaneously exposed B/W panchromatic and B/W infraredscale aerial photographs taken Octoby the Department of Energy, Mines and Resources, Ottawa, Ontario, Canada.".

conic projection, used for many of the State plane-coordinate systems; and the transverse Mercator projection, used for the remainder of the State plane-coordinate systems.

POLYCONIC PROJECTION The polyconic projection nas been generally acceptedas the best for a small, regular­ shaped area such as the standard Size: KB. Polyconic projection definition is - a map projection consisting of a composite series of concentric cones each of which before being unrolled has been placed over a sphere so as to be tangent to a different parallel of latitude.

Cut the globe into n strips, each centred at a different parallel, and project each strip using the equidistant conic projection for each standard parallel.

In the limit, this produces the Polyconic projection!. The Polyconic projection is also known as the American Polyconic. “Polyconic” can also refer to the class of projections whose parallels are non-concentric circular arcs. Topographic map of Venus.

Venus coordinates: W ⁰--E ⁰/N 78⁰--S 65⁰. Exhibited at 27th IGC International Map & Book Exhibit, Define polyconic projection. polyconic projection synonyms, polyconic projection pronunciation, polyconic projection translation, English dictionary definition of polyconic projection.

polyconic projection n. polyconic map projection: see map projection map projection, transfer of the features of the surface of the earth or another spherical body onto a flat sheet of paper. Only a globe can represent accurately the shape, orientation, and relative area of the earth's surface features; any projection produces distortion with.

A transverse polyconic projection for general maps of Canada Clovis-Omer Senécal. QH 1 B85 NO Mesozoic palaeontology of Blairmore region, Alberta.

Transverse Mercator Used by USGS for many quadrangle maps at scales fromto ,; such maps can be joined at their edges only if they are in the same zone with one central meridian. Also used for mapping large areas that are mainly north-south in extent.

96K: Part of "Rolla, Missouri-Illinois, Universal Transverse Mercator projection, 36 x 22 inches. Maps in the ,scale series are available for the entire United States. They were originated by the U.S.

Army Map Service during the 's, but are now maintained by the USGS. The projections and geographic coordinate systems (GCSs) used to define data in ArcGIS are an important part of working with GIS data.

Below is an overview of some of the most common projections and geographic coordinate systems for Canada.

The Universal Transverse Mercator (UTM) projection is a specialized application of the transverse Mercator projection. The globe is divided into 60 north and south zones, each spanning 6° of longitude. The Transverse Mercator projection illustrated above (Figure ) minimizes distortion within UTM zone Fifty-nine variations on this projection are used to minimize distortion in the other 59 UTM zones.

In every case, distortion is no greater than 1 part in 1, This means that a 1, meter distance measured anywhere within a UTM zone. -All flat maps distort the earth's surface +Affect properties of representation -Ability of map projection to show entire earth +Transverse.

Conic Projection Surfaces-Projections made onto a cone-Mid-latitude parallels as line of tangency. Types of cylindrical map projections you may know include the popular Mercator projection, Cassini, Gauss-Kruger, Miller, Behrmann, Hobo-Dyer, and Gall-Peters.

The mercator map projection is one of the most well known cylindrical map projections. Conic Map Projections. Secondly, conic map projections include the equidistant conic projection Author: Elizabeth Borneman.

Possibly the first map projection was the Plate Carrée, which represents the graticule as a uniformly rectangular grid. Every map projection distorts one or more of the four basic spatial properties: shape, area, distance, and direction.

The Mercator projection is. Plot x,y coordinates on a Polyconic Map Projection. Ask Question Asked 3 years, 10 months ago. Active 3 years, 9 months ago. Viewed times 1. I have an image The transformation from 1 to 2 is done by the formula in the book. polyconic projection[¦päli¦känik prə′jekshən] (mapping) A conic map projection in which the surface of a sphere or spheroid, such as the earth, is conceived as developed on a series of tangent cones, which are then spread out to form a plane; a separate cone is used for each small zone.

polyconic projection A map projection that is a.Since each parallel has its own cone, this is a “polyconic” projection. Scale is true along the central meridian and along each parallel. This projection is free of distortion only along the central meridian; distortion can be severe at extreme longitudes.

This projection is neither conformal nor equal-area.Map projection—A map projection is a systematic representation of a round body such as the Earth or a flat (plane) surface.

Each map projection has specific properties that make it useful for specific purposes. Rhumb line—A rhumb line is a line on the surface of the Earth cutting all meridians at the same angle. A rhumb line shows true.