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1991
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1. Arctic Ice Chart, April 2, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2. Arctic Ice Chart, April 22, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
3. Arctic Ice Chart, April 29, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
4. Arctic Ice Chart, April 8, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 8, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
5. Arctic Ice Chart, August 12, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for August 12, 1991. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
6. Arctic Ice Chart, August 19, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for August 19, 1991. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
7. Arctic Ice Chart, August 26, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for August 26, 1991. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
8. Arctic Ice Chart, August 5, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for August 5, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
9. Arctic Ice Chart, December 16, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for December 16, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
10. Arctic Ice Chart, December 2, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for December 2, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
11. Arctic Ice Chart, December 23, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for December 23, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
12. Arctic Ice Chart, December 30, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for December 30, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
13. Arctic Ice Chart, December 9, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for December 9, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
14. Arctic Ice Chart, February 11, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for February 11, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
15. Arctic Ice Chart, February 25, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for February 25, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
16. Arctic Ice Chart, February 4, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for February 4, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
17. Arctic Ice Chart, January 14, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for January 14, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
18. Arctic Ice Chart, January 21, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for January 21, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
19. Arctic Ice Chart, January 28, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for January 28, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
20. Arctic Ice Chart, January 7, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for January 7, 1991. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
21. Arctic Ice Chart, July 15, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for July 15, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
22. Arctic Ice Chart, July 22, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for July 22, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
23. Arctic Ice Chart, July 29, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for July 29, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
24. Arctic Ice Chart, July 8, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for July 8, 1991. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
25. Arctic Ice Chart, June 10, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for June 10, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
26. Arctic Ice Chart, June 17, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for June 17, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
27. Arctic Ice Chart, June 24, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for June 24, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
28. Arctic Ice Chart, June 3, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for June 3, 1991. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
29. Arctic Ice Chart, March 11, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for March 11, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
30. Arctic Ice Chart, March 18, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for March 18, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
31. Arctic Ice Chart, March 25, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for March 25, 1991. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
32. Arctic Ice Chart, March 4, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for March 4, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
33. Arctic Ice Chart, May 13, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for May 13, 1991. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
34. Arctic Ice Chart, May 21, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for May 21, 1991. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
35. Arctic Ice Chart, May 27, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for May 27, 1991. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
36. Arctic Ice Chart, November 11, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for November 11, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
37. Arctic Ice Chart, November 18, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for November 18, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
38. Arctic Ice Chart, November 25, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for November 25, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
39. Arctic Ice Chart, November 4, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for November 4, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
40. Arctic Ice Chart, October 14, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for October 14, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
41. Arctic Ice Chart, October 21, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for October 21, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
42. Arctic Ice Chart, October 28, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for October 28, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
43. Arctic Ice Chart, September 17, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 17, 1991. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
44. Arctic Ice Chart, September 2, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
45. Arctic Ice Chart, September 23, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1991. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
46. Arctic Ice Chart, September 30, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1991. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
47. Arctic Ice Chart, September 9, 1991
1991. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
48. Landcover Change: Russian River Basin, California, 2002
1991. Circuit Rider Productions. This polygon shapefile depicts increases and decreases in vegetative cover over 5 year periods in the Russian River Watershed region of California.... Circuit Rider Productions.
49. North American Countries, 2014
1991. Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile contains the boundaries for Canada, Mexico, Greenland, the Dominican Republic, Cuba, Haiti, the Bahamas and Jamaica. This la... Environmental Systems Research Institute (Redlands, Calif.).
50. United States Airports, 1991-2014
1991. TomTom International (Firm) and Environmental Systems Research Institute (Redlands, Calif.). Thisw polygon shapefile represents airport grounds and airport runways within the United States. All airports have a boundary, and most have at lea... Environmental Systems Research Institute (Redlands, Calif.).
51. World Time Zones, 1991-2011
1991. Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the time zones of the world. The time zones are best displayed with World Countries or World Administrative Divis... Environmental Systems Research Institute (Redlands, Calif.).
52. Disputed Boundaries: Brasil, 1991
1991. Instituto Brasileiro de Geografia e Estatística. This polygon shapefile represents disputed boundaries of Brazil in 1991. These data were created using a custom World Polyconic projection. This la... Instituto Brasileiro de Geografia e Estatística.
53. Municipal Boundaries: Brasil, 1991
1991. Instituto Brasileiro de Geografia e Estatística. This polygon shapefile represents the municipal boundaries of Brazil in 1991. These data were created using a custom World Polyconic projection. Th... Instituto Brasileiro de Geografia e Estatística.
54. State Boundaries: Brasil, 1991
1991. Instituto Brasileiro de Geografia e Estatística. This polygon shapefile contains the state boundaries of Brazil in 1991. These data were created using a custom World Polyconic projection. This lay... Instituto Brasileiro de Geografia e Estatística.
55. 1991 Block Boundaries of India
1991. This layer is a polygon theme representing block boundaries of India for 1991 and includes socio-demographic Census attribute data such as total po... ML InfoMap (Firm).
56. 1991 District Boundaries of India
1991. This layer is a polygon theme representing district boundaries of India for 1991. Includes district socio-demographic Census attribute data such as... ML InfoMap (Firm).
57. 1991 State Boundaries of India
1991. This layer is a polygon theme representing state boundaries of India for 1991 and includes socio-demographic Census attribute data such as total po... ML InfoMap (Firm).
58. 1991 Sub District Boundaries of India
1991. This layer is a polygon theme representing sub district boundaries of India for 1991. Includes district socio-demographic Census attribute data suc... ML InfoMap (Firm).
59. District Boundaries of India, 1991
1991. ML InfoMap (Firm). This layer is a polygon theme representing district boundaries of India for 1991. Includes district socio-demographic Census attribute data such as... ML InfoMap (Firm).
60. State Boundaries of India, 1991
1991. ML InfoMap (Firm). This layer is a polygon theme representing state boundaries of India for 1991 and includes socio-demographic Census attribute data such as total po... ML InfoMap (Firm).
61. District boundary of India, 1991
1991. ML InfoMap Pvt. Ltd. District boundary data of India, 1991. Includes socio-demographic data. ML InfoMap Pvt. Ltd.
62. India : District Boundaries, 1991
1991. ML InfoMap (Firm). India : District Boundaries, 1991 is a polygon theme representing district boundaries of India for 1991. Includes district socio-demographic Census... ML InfoMap Pvt. Ltd.
63. Ward and Constituency Boundaries: Zambia, 1991-2006
1991. Provincial Centre for Geographic Information Services (Zambia). This polygon dataset depicts the Ward and Constituancy boundaries in Zambia from 1991 to 2006. These data were digitized from source data acquired ... Provincial Centre for Geographic Information Services (Zambia).
64. China county map, 1991
1991. All China Marketing Research Co., Ltd. Map of administrative divisions in China, at the county level and above, for the year 1991.
65. Watersheds, Tompkins County NY, 1991
1991. Tompkins County Planimetric Project. The Tompkins County Planning Department utilized inter-departmental mapping expertise of the Tompkins County Information Technology Services GIS Di...
66. Woodfordian Moraines of Illinois, 2004
1991. Illinois State Geological Survey. This is an SDE polygon feature class containing named Woodfordian moraines, or Wisconsinan end moraines, of Illinois. Scale is 1:500,000. The prima...