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Rumsey Historical Map Collection

Rumsey Historical Map Collection

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Westmoreland County Tax Maps The Westmoreland County Department of Geographic Information Systems helps Westmoreland County to fulfill a statutory requirement that all taxable property needs to be mapped to aid in the tax assessment process. Using cutting age technology, Westmoreland GIS is able to provide a layout of properties, at and below the surface, both in the past and present. This information is made available in a variety of formats to the paying and public requestors via the GIS Tax Mapping website and a secure file transfer site. New GIS Tax Mapping Site with No Subscription FeesMonday, November 18, 2013, Westmoreland County launched a new GIS Tax Map Parcel Application. Those who pay for subscriber access will no longer be charged for added features beginning on the first of November.

Top 7 maps that ultimately explain map projections Map projections are cool but they might be a bit scary. It’s difficult to understand how can you put a very complex round-shaped surface of the Earth on a flat plane. After reading this post everything should be clear! 1. Portraying the features of a spherical surface on a flat plane Map projection is portraying the features of a spherical surface on a flat plane. The Map Room The Map Room is a blog that points to maps, map collections, map-related resources, and material about maps on the web. Anything that fits under that rubric, from medieval mappæ mundi to satellite imagery, and from topo maps to Tolkien, is fair game. Launched in March 2003, The Map Room is aimed at a broad audience. While cartographers and people in the geospatial industry seem to enjoy reading it, it’s meant to be accessible to anyone with nothing more than an interest in maps. Need more information?

Top 10 YouTube videos about maps and geography There are plenty of cool YouTube videos about maps and geography but we’ve decided to make for you the ultimate compilation of the most funny, amusing, surprising and inspiring of all them. Take a look and let us know in the comments if we’ve missed any video that should have been on our list. 1.

New York Public Library Puts 20,000 Hi-Res Maps Online & Makes Them Free to Download and Use When I was a kid, my father brought home from I know not where an enormous collection of National Geographic magazines spanning the years 1917 to 1985. I found, tucked in almost every issue, one of the magazine’s gorgeous maps—of the Moon, St. Petersburg, the Himalayas, Eastern Europe’s ever-shifting boundaries. I became a cartography enthusiast and geographical sponge, poring over them for years just for the sheer enjoyment of it, a pleasure that remains with me today. Whether you’re like me and simply love the imaginative exercise of tracing a map’s lines and contours and absorbing information, or you love to do that and you get paid for it, you’ll find innumerable ways to spend your time on the new Open Access Maps project at the New York Public Library. The NYPL announces the release with the explanation below:

Map Projections Poster || The Globe || Mercator || Transverse Mercator || Oblique Mercator || Space Oblique Mercator || || Miller Cylindrical || Robinson || Sinusoidal Equal Area || Orthographic || Stereographic || || Gnomonic || Azimuthal Equidistant || Lambert Azimuthal Equal Area || Albers Equal Area Conic || || Lambert Conformal Conic || Equidistant Conic (Simple Conic) || Polyconic || || Bipolar Oblique Conic Conformal || Summary Table || General Notes || PDF Version A map projection is used to portray all or part of the round Earth on a flat surface.

Visualizing World Birth and Death Rates Close This is a simulation. The d3 javascript library by Michael Bostock Interface design based on that used in my collaboration with Bill Snebold on the US Birth/Death Visualization World geometry data from this 50m data file used in this example by Michael Bostock Population data primarily from the CIA Factbook population data, with some data from wikipedia's list of populations Birth rate data primarily from the CIA Factbook birth rates with some data from wikipedia's list of birth rates. This birth rate is the annual average number of births per year per 1,000 persons in the population at midyear (this is also called the crude birth rate). Death rate data primarily from the CIA Factbook death rates with some data from wikipedia's list of death rates This death rate is the annual average number of deaths per year per 1,000 persons in the population at midyear (this is also called the crude death rate). There is no central database (that I know of) with the events modeled here.

Map Projections To run this applet, you need the version 1.4 or higher of the Java Runtime Environment installed in your computer. A version for Microsoft Windows may be downloaded here (file j2re1.4.exe with 10 Mb). The applet takes some time to be loaded in the first time.

Un site très surprenant qui offre non seulement des reproductions de cartes anciennes de très bonnes qualitées, mais aussi la possibilité de les utiliser à travers Google Map afin de les mettre en 3D ou bien de comparer avec les cartes actuelles. by jeanfrancoisleblanc Jan 23