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1. China County Boundaries with 1964 Population Census Data

Polygon Columbia University Restricted content
1964. University of Michigan. China Data Center. and Beijing Hua tong ren shi chang xin xi you xian ze ren gong si. REMOTE DOWNLOAD NOT AVAILABLE - please contact data@library.columbia.edu for access. China County Boundaries with 1964 Population Census Data is a ... All China Marketing Research Co.

2. China Province Boundaries, 1964

Polygon Columbia University Restricted content
1964. University of Michigan. China Data Center. and Beijing Hua tong ren shi chang xin xi you xian ze ren gong si. REMOTE DOWNLOAD NOT AVAILABLE - please contact data@library.columbia.edu for access. China Province Boundaries, 1964 is a polygon theme representin... All China Marketing Research Co.

3. Tibet County Boundary, 1964

Polygon Columbia University Restricted content
1964. University of Michigan. China Data Center. REMOTE DOWNLOAD NOT AVAILABLE - please contact data@library.columbia.edu for access. Tibet County Boundary, 1964 is a polygon theme representing Ti... All China Marketing Research Co.

4. Tibet Province Boundary, 1964

Polygon Columbia University Restricted content
1964. University of Michigan. China Data Center. REMOTE DOWNLOAD NOT AVAILABLE - please contact data@library.columbia.edu for access. Tibet Province Boundary, 1964 is a polygon theme representing ... All China Marketing Research Co.

5. China historical 1964 county population census data

Polygon Harvard University Restricted content
1964. Beijing Hua tong ren shi chang xin xi you xian ze ren gong si and University of Michigan. China Data Center. This polygon datalayer includes China county boundaries with 1964 population census data. The 1964 administrative maps (county and province) were p... All China Marketing Research Co. ; distributed by University of Michigan China Data Center, Ann Arbor, Mich.

6. China historical 1964 province boundaries

Polygon Harvard University Restricted content
1964. Beijing Hua tong ren shi chang xin xi you xian ze ren gong si and University of Michigan. China Data Center. This polygon datalayer shows China province boundaries for 1964. The 1964 administrative maps (county and province) were primarily based on 'The Hi... All China Marketing Research Co. ; distributed by University of Michigan China Data Center, Ann Arbor, Mich.

7. Global GIS : Earthquake epicenters (1973-2003)

Point Harvard University Public content
1973. American Geological Institute, Geological Survey (U.S.), Environmental Systems Research Institute (Redlands, Calif.), National Earthquake Information Center, and National Geophysical Data Center. This datalayer is a point coverage representing earthquake epicenters (1973 through March, 2003). Historical data for this layer were derived from:... American Geological Institute.
1974. Schruben, Paul G., Arndt, Raymond E., Bawiec, W. J., Ambroziak, Russell A., King, Philip Burke, 1903-, Beikman, Helen M., Edmonston, Gertrude J., Geological Survey (U.S.), and American Geological Institute. This datalayer is a polyline coverage representing geologic faults of the conterminous United States. It is a digital version of the fault features... American Geological Institute.
1974. Schruben, Paul G., Arndt, Raymond E., Bawiec, W. J., Ambroziak, Russell A., King, Philip Burke, 1903-, Beikman, Helen M., Edmonston, Gertrude J., Geological Survey (U.S.), and American Geological Institute. This datalayer is a polygon coverage representing geologic regions of the conterminous United States. It is a digital version of the geology featur... American Geological Institute.

11. Rutgers University, New Brunswick, New Jersey campuses 1973

Rutgers University Public content
1973. Verso of maps of Rutgers University, College Avenue and Douglass Campuses in New Brunswick, New Jersey. Front page features Rutgers University seal... American Publishers, a division of Konor Enterprises, Incorporated.

12. Rutgers University, New Brunswick, New Jersey campuses 1973

Rutgers University Public content
1973. Maps of Rutgers University, College Avenue and Douglass Campuses in New Brunswick, New Jersey. Building directory, shading and numbering designate ... American Publishers, a division of Konor Enterprises, Incorporated.

13. Paleorelief Contour Lines, Paris, France, 1967

Line Stanford University Public content
1967. Costa, Laurent. This line shapefile represents contour lines in Paris, France as defined in the Geological Atlas of 1967 by Vincent Krier. The ALPAGE programme aim... Analyse Diachronique de l'espace Urbain Parisien: Approche Geomatique.

14. Arctic Ice Chart, April 1, 1966

Line Stanford University Public content
1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for April 1, 1966. This layer is part of the Arctic Climate System (ACSYS) Histo... Arctic Climate System (ACSYS).

15. Arctic Ice Chart, April 1, 1967

Polygon Stanford University Public content
1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1967. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

16. Arctic Ice Chart, April 1, 1968

Polygon Stanford University Public content
1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1968. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

17. Arctic Ice Chart, April 1, 1970

Polygon Stanford University Public content
1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1970. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

18. Arctic Ice Chart, April 1, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1971. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

19. Arctic Ice Chart, April 1, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1974. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

20. Arctic Ice Chart, April 1, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1977. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

21. Arctic Ice Chart, April 10, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 10, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

22. Arctic Ice Chart, April 11, 1969

Polygon Stanford University Public content
1969. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 11, 1969. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

23. Arctic Ice Chart, April 12, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 12, 1973. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

24. Arctic Ice Chart, April 12, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 12, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

25. Arctic Ice Chart, April 12, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 12, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

26. Arctic Ice Chart, April 13, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

27. Arctic Ice Chart, April 13, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

28. Arctic Ice Chart, April 13, 1976

Polygon Stanford University Public content
1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1976. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

29. Arctic Ice Chart, April 14, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

30. Arctic Ice Chart, April 15, 1966

Line Stanford University Public content
1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for April 15, 1966. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).

31. Arctic Ice Chart, April 15, 1967

Polygon Stanford University Public content
1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1967. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

32. Arctic Ice Chart, April 15, 1968

Polygon Stanford University Public content
1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1968. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

33. Arctic Ice Chart, April 15, 1970

Polygon Stanford University Public content
1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1970. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

34. Arctic Ice Chart, April 15, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

35. Arctic Ice Chart, April 15, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

36. Arctic Ice Chart, April 16, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1973. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

37. Arctic Ice Chart, April 16, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1974. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

38. Arctic Ice Chart, April 17, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

39. Arctic Ice Chart, April 17, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

40. Arctic Ice Chart, April 17, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1979. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

41. Arctic Ice Chart, April 18, 1969

Polygon Stanford University Public content
1969. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1969. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

42. Arctic Ice Chart, April 18, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1974. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

43. Arctic Ice Chart, April 18, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

44. Arctic Ice Chart, April 19, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

45. Arctic Ice Chart, April 19, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

46. Arctic Ice Chart, April 19, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1979. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

47. Arctic Ice Chart, April 2, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1973. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

48. Arctic Ice Chart, April 2, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1979. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

49. Arctic Ice Chart, April 20, 1970

Polygon Stanford University Public content
1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 20, 1970. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

50. Arctic Ice Chart, April 20, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 20, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

51. Arctic Ice Chart, April 21, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

52. Arctic Ice Chart, April 21, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

53. Arctic Ice Chart, April 22, 1966

Line Stanford University Public content
1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for April 22, 1966. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).

54. Arctic Ice Chart, April 22, 1967

Polygon Stanford University Public content
1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1967. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

55. Arctic Ice Chart, April 22, 1968

Polygon Stanford University Public content
1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1968. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

56. Arctic Ice Chart, April 22, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

57. Arctic Ice Chart, April 22, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1974. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

58. Arctic Ice Chart, April 22, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 22, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

59. Arctic Ice Chart, April 23, 1976

Polygon Stanford University Public content
1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 23, 1976. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

60. Arctic Ice Chart, April 23, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 23, 1979. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

61. Arctic Ice Chart, April 24, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 24, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

62. Arctic Ice Chart, April 24, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 24, 1973. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

63. Arctic Ice Chart, April 24, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 24, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

64. Arctic Ice Chart, April 25, 1969

Polygon Stanford University Public content
1969. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 25, 1969. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

65. Arctic Ice Chart, April 25, 1970

Polygon Stanford University Public content
1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 25, 1970. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

66. Arctic Ice Chart, April 25, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 25, 1974. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

67. Arctic Ice Chart, April 25, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 25, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

68. Arctic Ice Chart, April 26, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 26, 1973. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

69. Arctic Ice Chart, April 26, 1976

Polygon Stanford University Public content
1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 26, 1976. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

70. Arctic Ice Chart, April 26, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 26, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

71. Arctic Ice Chart, April 26, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 26, 1979. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

72. Arctic Ice Chart, April 27, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 27, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

73. Arctic Ice Chart, April 27, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 27, 1972. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

74. Arctic Ice Chart, April 27, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 27, 1978. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

75. Arctic Ice Chart, April 28, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 28, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

76. Arctic Ice Chart, April 29, 1966

Line Stanford University Public content
1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for April 29, 1966. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).

77. Arctic Ice Chart, April 29, 1967

Polygon Stanford University Public content
1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1967. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

78. Arctic Ice Chart, April 29, 1968

Polygon Stanford University Public content
1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1968. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

79. Arctic Ice Chart, April 29, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1971. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

80. Arctic Ice Chart, April 29, 1974

Polygon Stanford University Public content
1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1974. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

81. Arctic Ice Chart, April 29, 1976

Polygon Stanford University Public content
1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 29, 1976. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

82. Arctic Ice Chart, April 3, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 3, 1975. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

83. Arctic Ice Chart, April 3, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 3, 1978. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

84. Arctic Ice Chart, April 30, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 30, 1973. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

85. Arctic Ice Chart, April 30, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 30, 1975. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

86. Arctic Ice Chart, April 30, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 30, 1979. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

87. Arctic Ice Chart, April 4, 1969

Polygon Stanford University Public content
1969. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 4,, 1969. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

88. Arctic Ice Chart, April 4, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 4, 1972. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

89. Arctic Ice Chart, April 4, 1977

Polygon Stanford University Public content
1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 4, 1977. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

90. Arctic Ice Chart, April 5, 1971

Polygon Stanford University Public content
1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 5, 1971. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

91. Arctic Ice Chart, April 5, 1973

Polygon Stanford University Public content
1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 5, 1973. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

92. Arctic Ice Chart, April 5, 1976

Polygon Stanford University Public content
1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 5, 1976. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

93. Arctic Ice Chart, April 5, 1978

Polygon Stanford University Public content
1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 5, 1978. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

94. Arctic Ice Chart, April 5, 1979

Polygon Stanford University Public content
1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 5, 1979. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

95. Arctic Ice Chart, April 6, 1972

Polygon Stanford University Public content
1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 6, 1972. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

96. Arctic Ice Chart, April 7, 1975

Polygon Stanford University Public content
1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 7, 1975. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

97. Arctic Ice Chart, April 8, 1966

Line Stanford University Public content
1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for April 8, 1966. This layer is part of the Arctic Climate System (ACSYS) Histo... Arctic Climate System (ACSYS).

98. Arctic Ice Chart, April 8, 1967

Polygon Stanford University Public content
1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 8, 1967. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

99. Arctic Ice Chart, April 8, 1968

Polygon Stanford University Public content
1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 8, 1968. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).

100. Arctic Ice Chart, April 8, 1970

Polygon Stanford University Public content
1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 8, 1970. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).