About: John P. Snyder

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John Parr Snyder (12 April 1926 – 28 April 1997) was an American cartographer most known for his work on map projections for the United States Geological Survey (USGS). Educated at Purdue and MIT as a chemical engineer, he had a lifetime interest in map projections as a hobby, but found the calculations tedious without the benefit of expensive calculators or computers. At a cartography conference in 1976, he learned of the need for a map projection that would suit the special needs of Landsat satellite imagery. He had recently been able to purchase a pocket calculator (TI-59) of his own and set to work creating what became known as the space-oblique mercator projection, which he provided to the USGS at no charge.

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rdfs:label	جون بي سنايدر (ar) John Parr Snyder (fr) John P. Snyder (en)
rdfs:comment	جون بي سنايدر (بالإنجليزية: John P. Snyder)‏ هو عالم رسم الخرائط وجيولوجي أمريكي، ولد في 12 أبريل 1926، وتوفي في 28 أبريل 1997. (ar) John Parr Snyder (12 avril 1926 - 28 avril 1997) est un cartographe américain connu pour ses travaux sur les projections cartographiques à l'United States Geological Survey (USGS). On lui doit, entre autres, la projection qui permet de générer des cartes à partir d'images prises par les satellites artificiels, la (en) en:Space-oblique Mercator projection utilisée pour générer des cartes à partir des images de Landsat-4 en 1978. (fr) John Parr Snyder (12 April 1926 – 28 April 1997) was an American cartographer most known for his work on map projections for the United States Geological Survey (USGS). Educated at Purdue and MIT as a chemical engineer, he had a lifetime interest in map projections as a hobby, but found the calculations tedious without the benefit of expensive calculators or computers. At a cartography conference in 1976, he learned of the need for a map projection that would suit the special needs of Landsat satellite imagery. He had recently been able to purchase a pocket calculator (TI-59) of his own and set to work creating what became known as the space-oblique mercator projection, which he provided to the USGS at no charge. (en)
dct:subject	1997 deaths Massachusetts Institute of Technology alumni 1926 births 20th-century cartographers American cartographers Purdue University alumni United States Geological Survey personnel American civil servants 20th-century American geologists
Wikipage page ID	7654598 (xsd:integer)
Wikipage revision ID	1123002610 (xsd:integer)
Link from a Wikipage to another Wikipage	Cartography United States Geological Survey 1997 deaths Massachusetts Institute of Technology alumni George Mason University Library of Congress MIT 1926 births 20th-century cartographers American cartographers Purdue University alumni United States Geological Survey personnel Snyder equal-area projection American civil servants 20th-century American geologists Map projection Space-oblique mercator projection Washington, D. C. American Cartographic Association GS50 Landsat CaGIS TI-59 dbr:CANSPACE dbr:Washington_Map_Society
Link from a Wikipage to an external page	http://onlinepubs.er.usgs.gov/djvu/PP/PP_1395.pdf http://www.manifold.net/doc/gs50_projection.htm https://listserv.unb.ca/cgi-bin/wa%3FA2=ind9705&L=canspace&T=0&H=1&P=1145 http://pubs.usgs.gov/bul/1856/report.pdf https://pubs.er.usgs.gov/publication/b1518 https://pubs.er.usgs.gov/publication/cir982 http://www.geo.hunter.cuny.edu/mp/snyder.html https://www.loc.gov/loc/lcib/0305/cartography.html http://pubs.usgs.gov/pp/1453/report.pdf https://pubs.er.usgs.gov/publication/pp1395
sameAs	John P. Snyder John P. Snyder John P. Snyder John P. Snyder John P. Snyder John P. Snyder John P. Snyder John P. Snyder John P. Snyder
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bot	InternetArchiveBot (en)
date	February 2020 (en)
fix-attempted	yes (en)
has abstract	جون بي سنايدر (بالإنجليزية: John P. Snyder)‏ هو عالم رسم الخرائط وجيولوجي أمريكي، ولد في 12 أبريل 1926، وتوفي في 28 أبريل 1997. (ar) John Parr Snyder (12 April 1926 – 28 April 1997) was an American cartographer most known for his work on map projections for the United States Geological Survey (USGS). Educated at Purdue and MIT as a chemical engineer, he had a lifetime interest in map projections as a hobby, but found the calculations tedious without the benefit of expensive calculators or computers. At a cartography conference in 1976, he learned of the need for a map projection that would suit the special needs of Landsat satellite imagery. He had recently been able to purchase a pocket calculator (TI-59) of his own and set to work creating what became known as the space-oblique mercator projection, which he provided to the USGS at no charge. He was subsequently offered a job within the USGS within two years, where his work apparently led him to the eventual publication of the definitive technical guide to map projections entitled Map Projections: A Working Manual among other works. He also authored Flattening the Earth: Two Thousand Years of Map Projections which details the historical development of hundreds of map projections. Snyder developed at least one other projection, called GS50, which uses a complex polynomial to project the 50 U.S. states with minimal distortion. He taught courses on map projection at George Mason University. He was president of the American Cartographic Association (now CaGIS) from 1990–1991 and also served as a secretary to the . John Snyder died April 28, 1997. (en) John Parr Snyder (12 avril 1926 - 28 avril 1997) est un cartographe américain connu pour ses travaux sur les projections cartographiques à l'United States Geological Survey (USGS). On lui doit, entre autres, la projection qui permet de générer des cartes à partir d'images prises par les satellites artificiels, la (en) en:Space-oblique Mercator projection utilisée pour générer des cartes à partir des images de Landsat-4 en 1978. (fr)
gold:hypernym	Cartographer
schema:sameAs	John P. Snyder
prov:wasDerivedFrom	wikipedia-en:John_P._Snyder?oldid=1123002610&ns=0
page length (characters) of wiki page	5074 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:John_P._Snyder
is Link from a Wikipage to another Wikipage of	List of cartographers Delaware Township, Hunterdon County, New Jersey John T. Cunningham Deaths in April 1997 List of map projections

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