Original file (2,058 900 pixels, file size: 519 KB, MIME type: image/jpeg). What does it mean when the map projection distorts the earth? The parallels are straight lines, equally spaced between 4044'12" north and south. 2.3: Map Projections - Geosciences LibreTexts It is used primarily for world maps in a number of atlases, including Goode's Atlas (Rand McNally). Their spacing slowly decreases toward the poles beyond those latitudes. The Goode homolosine projection (or interrupted Goode homolosine projection) is a pseudocylindrical, equal-area, composite map projection used for world maps. Central Meridian, which does not alter the interruption longitudes as specified by the Option parameter. In the uninterrupted form, bulging meridians produce considerable shape distortion toward the edge of the projection. Annals of the Association of American Geographers. Map projections are interesting, complicated, and mostly handled for us. Allan Lee Collection of Map Stamps: Volume 6. +ellps, +R takes precedence. 2023 QNA Experts - All Rights Reserved Questions tagged [homolosine] - Geographic Information Systems Stack By using interruption, selected parts of the map like land formations can be kept centered, further diminishing distortion. The equal-area property and some other distortion properties are not maintained when an ellipsoid is used. What does the Goode Homolosine projection distort? Goode homolosine projection explained. I've tried using the Goode Homolosine projection (land) in ArcGIS but the resulting raster was offset to the East by around 11km. Goode Homolosine parameters are as follows: Snyder, J. P. (1993). The problem was related to a bug with that tool, and a workaround solution was proposed. The extreme latitudes of the map are also exaggerated. ArcGIS Desktop Help 9.2 - Goodes Homolosine Frequently plotted with some northern regions repeated on different interrupted sections to reduce . As I am working on a continental scale (South America) I need to reproject to WGS84. What Does The Homolosine Projection Do? - FAQS Clear The sinusoidal projection is used between those two latitude values for the equatorial part of the world. Post the Definition of homolosine projection to Facebook, Share the Definition of homolosine projection on Twitter, Palter, Dissemble, and Other Words for Lying, Skunk, Bayou, and Other Words with Native American Origins, Words For Things You Didn't Know Have Names, Vol. This projection is fully supported by both PROJ and GDAL. Is the Goode Homolosine projection accurate? - Studybuff.com Up to latitudes 404411.8N/S, the map is projected according to the sinusoidal projections transformation. What are the disadvantages of the Goode homolosine projection? The poles are presented with two, three, or four points, depending on This grafting results in a kink in the meridians along the parallel of the graft. Normally it is presented with multiple interruptions. The result is a slight, visible bend in the meridians at 4044'11.8'' N and S. Other entrances have variable hours. Its equal-area property makes it useful for presenting spatial distribution of phenomena. Its principal disadvantage is that distances are greatly distorted Greenland appears larger than South America when its actually one-ninth the size. Its equal-area property makes it useful for presenting spatial distribution of phenomena. 10.2307/2560812. The disadvantage is that the equatorial regions become stretched on the opposite direction giving a long look to Africa and South America. Flattening the Earth. Each of the six central meridians is a straight line 0.22 as long as the Equator, but not crossing the Equator. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. 15 graticule. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. Goodes HomolosineHelp | ArcGIS Desktop - Esri Chicago and London: University of Chicago +R=<value>. An advantage of this projection is that it does not exaggerate distance and area as much as the Mercator projection. Original file (SVG file, nominally 3,600 1,568 pixels, file size: 2.52 MB). Despite the slight improvement in shapes, the curved latitude lines make the map harder to construct and use. 140 in the southern hemisphere. Learn a new word every day. The subsections below describe the Goode homolosine projection properties. Goode homolosine is an equal-area (equivalent) projection. The equator and central meridian are projected as straight lines and the central meridian is 0.44 times the length of the projected equator. Washington, DC: United States Government Printing Office. Original file (2,058 900 pixels, file size: 519 KB, MIME type: image/jpeg). An advantage of this projection is that it does not exaggerate distance and area as much as the Mercator projection. For instance, the following little programme: The van der Grinten projection is a compromise map projection that is neither equal-area nor conformal. For more on this, start at this discussion (thanks Randy for the reference!). Homolosine projection with GeoTools. Projections. How Were Presidents Theodore And Franklin Roosevelt Relate? Copyright 1983-2023. In 1923 Paul Goode of the University of Chicago grafted two projections together the equatorial region of the Sinusoidal projection with the extreme latitude region of the Mollweide to utilize their virtues while eliminating their weaknesses. While useful for navigation, it is poor for showing correct areas or scale. All structured data from the file namespace is available under the. Files are available under licenses specified on their description page. Its equal-area property makes it useful for presenting spatial distribution of phenomena. Development There is no distortion along the central meridians and the equator. of Map Projections. Homolosine projection Definition & Meaning - Merriam-Webster This means that when we attempt to flatten our round planet to the two-dimensional plane of websites and journal articles, we make certain assumptions based on the intent weve set for our map. For the across the equator and the central meridian. Files are available under licenses specified on their description page. Goode's homolosine projection is a combination of the Mollweide and sinusoidal projections. Goode homolosine is an equal-area pseudocylindrical projection for world maps. From Wikimedia Commons, the free media repository, Add a one-line explanation of what this file represents. In fact, AuthaGraph World Map is so proportionally perfect, it magically folds it into a three-dimensional globe. Other Meridians: Equally spaced sinusoidal curves between the 4044'11.8'' parallels and elliptical arcs elsewhere, all concave toward the central meridian. The scale along all parallels in the sinusoidal part, between 40xb044'12" north and south, and along the central meridians of the projection is accurate. Goode's homolosine projection is a combination of the Mollweide and sinusoidal projections. Interrupted Goode Homolosine projection - Esri Community I, the copyright holder of this work, hereby publish it under the following license: Add a one-line explanation of what this file represents. The Mollweide projection compresses the extreme latitudes vertically and stretches them horizontally. Consequently, it is particularly useful for both air and marine navigation. It is in the Interrupted Goode Homolosine projection. Washington, DC 20002. I am developing a MapServer map file for a map created with Goode's Homolosine projection. Size of this preview: 1,024 448 pixels. Two Thousand Years It is a combination of Mollweide (or homolographic) and sinusoidal projections, hence the name homolosine. The sinusoidal projection is used between those two latitude values for the equatorial part of the world. Delivered to your inbox! Scale is true along every latitude between 4044' N and S and along the central meridian within the same latitude range. The graticule is symmetric across the equator and the central meridian. Flattening the Earth. Two Thousand Years Goode Homolosine Projection - bluemarblegeo.com I, the copyright holder of this work, hereby publish it under the following license: (2,058 900 pixels, file size: 519 KB, MIME type: https://creativecommons.org/licenses/by-sa/3.0, Creative Commons Attribution-Share Alike 3.0, Mathematrix: Werkzeuge/ Abstellraum/ PSA/ Geometrie des Raums G2A, Mathematrix: AT BRP/ Theorie/ Mittleres Niveau 3, Mathematrix: MA TER/ Theorie/ Geometrie des Raums, Mathematrix: AT PSA/ Theorie/ Expertenniveau 2, Mathematrix: AT BRP/ Theorie nach Thema/ Geometrie des Raums, Mathematrix: AT PSA/ Theorie nach Thema/ Geometrie des Raums, Mathematrix: AT AHS/ Theorie nach Thema/ Geometrie des Raums, Mathematrix: BY GYM/ Theorie nach Thema/ Geometrie des Raums, Wikipedia:Featured pictures/Diagrams, drawings, and maps/Maps, Wikipedia:Graphics Lab/Map workshop/Archive/Feb 2013, Wikipedia:Featured picture candidates/June-2013, Wikipedia:Featured picture candidates/Map Projections Set, Wikipedia:Picture of the day/February 2015, Wikipedia:Main Page history/2015 February 26, Anexo:Cronologa de las proyecciones cartogrficas, Reprsentations et cartes du monde/Reprsentation, https://commons.wikimedia.org/wiki/user:Strebe, Creative Commons Attribution-ShareAlike 3.0 Unported, https://commons.wikimedia.org/w/index.php?title=File:Goode_homolosine_projection_SW.jpg&oldid=685852674, Files with Assessments template missing SDC Commons quality assessment, Creative Commons Attribution-ShareAlike License. The Mollweide projection is used for north of 40 44' and south of -40 44', approximately. Other meridians are equally spaced sinusoidal curves between latitudes 4044' N and S. The poles are represented by points. The result is a slight, visible bend in the meridians at 4044'11.8'' N and S. The default convention is to interpret this value as decimal degrees. 2). The Mollweide projection is used for north of 40 44' and south of -40 44' approximately. Goode. It is most commonly used in interrupted form. The traverse aspect of an elliptical projection puts the pole in the center of the map instead of the equator. See Projection Units for more information. Specified in [square brackets]: Actual size of the projection (minus the black or white background). This remedies the pointed result of the Sinusoidal at the poles and spreads the extreme latitudes, giving better shape there. How Does The Muscular System Affect Other Body Systems. Option, used to specify the interruption forms regardless of Central Meridian parameter value, with values as follows. Goode homolosine is an equal-area (equivalent) projection. You can explore projections and find your neighborhoods favorite at http://epsg.io, which is also the database cartopy uses to lookup projections by their EPSG codes. Each of these projections has been assigned a code by the European Petroleum Survey Group (EPSG), which has established itself as a projection authority. The Goode homolosine projection (or interrupted Goode's homolosine projection) is a pseudo- cylindrical, equal-area, composite map projection used for world maps. You can explore projections and find your neighborhoods favorite at http://epsg.io. Its straight, parallel meridians allow angle measurement with a protractor. This has made using specific projections quite simple, as one can refer to them by their EPSG code. Advantages: It was made famous when the National Geographic Society adopted it as their reference map of the world from 1922 until 1988. A conformal map distorts areamost features are depicted too large or too small. 2560812. For an ellipsoid, the semimajor axis is used for the radius. Vector and raster data in the Interrupted Goode Homolosine . Developed in 1923 by J. Paul Goode (1862-1932) of the University of Chicago as a merging of the Mollweide (or Homolographic) with the sinusoidal at the parallels of identical scale, latitudes 4044N and S.; hence, the name Homolosine. The EPSG code for the Web Mercator projection (used by Google Maps and Bing Maps), for example, is EPSG:3857. Goode homolosine is an equal-area (equivalent) projection. The Goode homolosine projection (or interrupted Goode homolosine projection) is a pseudocylindrical, equal-area, composite map projection used for world maps. In the interrupted forms, each lobe has its own straight central For example, it may be constant along any given parallel. A quiz to (peak/peek/pique) your interest. And when this projection is used to map the world, complete hemispheres are commonly rendered as two circles. Forward and inverse, spherical projection. The scale along all parallels in the sinusoidal part, between 4044'12'' north and south, and along the central meridians of the projection is accurate. An Album of Map Interrupted forms can be used for focus maps on land or ocean as originally presented by the inventor. The Mollweide projection is an equal-area, pseudocylindrical map projection generally used for global maps of the world or night sky. To specify radians instead, follow the value with the "r" character. Goode homolosine is a pseudocylindric projection. Shapes, directions, angles, and distances are generally distorted. This is hands-down the most accurate map projection in existence. 2.3 Map Projections - Introduction to Oceanography Goodes Interrupted Homolosine projection provides a vast improvement in shapes while maintaining equal area. Have you signed up for ourmonthly e-newsletter? Homolosine projection definition, an equal-area projection of the world, distorting ocean areas in order to minimize the distortion of the continents. First create a file called gl-goodes-deciduous.vrt that looks like this: They each define a different version of the Earths geometry, and thats all well say about that here (its easy to get into a rabbit hole with datums/geographic reference systems, so well avoid that). See Ellipsoid size parameters for more information. Because the Mollweide is sometimes called the "homolographic projection" (meaning, equal-area map), Goode fused the two names "homolographic" and "sinusoidal" (from the sinusoidal projection) to create the name "homolosine". coordinate-system. Its equal-area property makes it useful for presenting spatial distribution of phenomena. Homolosine projection Definition & Meaning | Dictionary.com The poles are presented as points. You must there are over 200,000 words in our free online dictionary, but you are looking for one thats only in the Merriam-Webster Unabridged Dictionary. Comment * document.getElementById("comment").setAttribute( "id", "aec67ce2f296ef705f5d9dbff01ed861" );document.getElementById("c08a1a06c7").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Points 4044 north and south at the central meridian have zero distortion. Cal Coop Ocean Fish Invest Lines/Stations, Interrupted Goode Homolosine (Oceanic View), Gauss-Schreiber Transverse Mercator (aka Gauss-Laborde Reunion), Computation of coordinate operations between two CRS. [2] Common in the 1960s, the Goode homolosine projection is often called an "orange-peel map" because of its resemblance to the flattened rind of a hand-peeled orange. Normally it is presented with multiple interruptions. Homolosine projection with GeoTools - Geographic Information Systems Subscribe. NOTE: Only a spherical form of this projection is used. (Most of the time.). That cartogram is just a patch of several segments obtained from the Homolosine projection. Home | About | Contact | Copyright | Privacy | Cookie Policy | Terms & Conditions | Sitemap. The Goode homolosine projection is often used to represent the entire globe (Figure 2.3. Your email address will not be published. In fact, AuthaGraph World Map is so proportionally perfect, it A Stereographic projection is a true perspective projection that has been popular since the 16th century. The Stereographic is constructed by projecting the earth onto a plane tangent to the surface from a point directly opposite the point of contact or the antipode (parts of the earth diametrically opposite). When marked with [], sizes with and without background are approx. Goode Homolosine PROJ 9.2.1 documentation Goode homolosine projection synonyms, Goode homolosine projection pronunciation, Goode homolosine projection translation, English dictionary definition of Goode homolosine projection. The Goode homolosine projection is often used to represent the entire globe (Figure 2.3.2). Goode offered variations of the interruption scheme for emphasizing the worlds land and the worlds oceans. Goode Homolosine projection) The Earth is round (ok, ellipsoidal), paper and computer screens are flat. The Mollweide is another example of an elliptical map. It projects the entire Earth into a circle, though the polar regions are subject to extreme distortion. Goode homolosineArcGIS Pro | Documentation - Esri This page is not available in other languages. Directory of Map Projections Goode homolosine of Map Projections. Conformal Projections | National Postal Museum AuthaGraph. Each of these projections has been assigned a code by the European Petroleum Survey Group (EPSG), which has established itself as a projection authority. In its most common form, the map interrupts the North Atlantic, the South Atlantic, the South Pacific, the Indian Ocean, and the entire east/west meridian of the map. Normally it is presented with multiple interruptions. What does the Goodes projection distort? The "GoodeHomolosine" Projection has the following Parameters: Longitude of the Center of the Projection. . Goode Homolosine. What are the benefits of Goode Homolosine projection? Map Projections & What They Say About You - Brilliant Maps The EPSG code for the Web Mercator projection (used by Google Maps and Bing Maps), for example, is EPSG:3857. Goode homolosine projection - Wikipedia Subscribe to America's largest dictionary and get thousands more definitions and advanced searchad free! We call that reference point a datum, which defines the surface upon which the unprojected spherical coordinates lie. Goode homolosine is an equal-area (equivalent) projection. J.P.. 1925. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. 2023. Goode Homolosine Projection - MATLAB - MathWorks If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. Normally it is presented with multiple interruptions. Accessed 28 Jun. There is no distortion along the central meridians and the equator. The Goode homolosine projection is appropriate for small-scale mapping requiring accurate areas although its uninterrupted use is not advisable. If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it. Flattened Orange (e.g. Radius of the sphere, given in meters. An advantage of this projection is that it does not exaggerate distance and area as much as the Mercator projection. If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it. By using interruption, selected parts of the map - like land formations - can be kept centered, further diminishing distortion. However, shapes still stretch severely at the perimeter. I recently posted about a problem in ArcGIS using the Goode Homolosine (Land) projection with the Project Raster tool HERE. Click on a date/time to view the file as it appeared at that time. What is Goode's interrupted projection used for? The Goode homolosine projection is supported on spheres only. This page is not available in other languages. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. Goode's Interrupted Homolosine projection provides a vast improvement in shapes while maintaining equal area. Goode's homolosine projection is a combination of the Mollweide and sinusoidal projections. There are several important datums, like WGS84 (used by GPS systems) and NAD83, which youll see often. This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. Cookie policy. From Wikipedia, the free encyclopedia. coordinate system - Name of a custom Goode homolosine projection File:Goode homolosine projection SW.jpg - Wikipedia Start your free trial today and get unlimited access to America's largest dictionary, with: Homolosine projection. Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/homolosine%20projection.
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