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Climatology, Meteorology and Atmosphere
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Sea ice
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1. Arctic Ice Chart, April 1, 1966
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).
2. Arctic Ice Chart, April 1, 1967
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).
3. Arctic Ice Chart, April 1, 1968
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).
4. Arctic Ice Chart, April 1, 1970
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).
5. Arctic Ice Chart, April 1, 1971
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).
6. Arctic Ice Chart, April 1, 1974
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).
7. Arctic Ice Chart, April 1, 1977
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).
8. Arctic Ice Chart, April 1, 1982
1982. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1982. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
9. Arctic Ice Chart, April 1, 1984
1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1984. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
10. Arctic Ice Chart, April 1, 1985
1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1985. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
11. Arctic Ice Chart, April 1, 1986
1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1986. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
12. Arctic Ice Chart, April 1, 1996
1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1996. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
13. Arctic Ice Chart, April 1, 1997
1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1997. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
14. Arctic Ice Chart, April 1, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 1, 1998. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
15. Arctic Ice Chart, April 10, 1972
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).
16. Arctic Ice Chart, April 10, 1980
1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 10, 1980. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
17. Arctic Ice Chart, April 10, 1985
1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 10, 1985. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
18. Arctic Ice Chart, April 10, 1989
1989. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 10, 1989. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
19. Arctic Ice Chart, April 10, 1995
1995. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 10, 1995. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
20. Arctic Ice Chart, April 11, 1969
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).
21. Arctic Ice Chart, April 11, 1988
1988. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 11, 1988. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
22. Arctic Ice Chart, April 11, 1994
1994. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 11, 1994. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
23. Arctic Ice Chart, April 11, 2000
2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 11, 2000. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
24. Arctic Ice Chart, April 12, 1973
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).
25. Arctic Ice Chart, April 12, 1977
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).
26. Arctic Ice Chart, April 12, 1978
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).
27. Arctic Ice Chart, April 12, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 12, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
28. Arctic Ice Chart, April 13, 1971
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).
29. Arctic Ice Chart, April 13, 1972
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).
30. Arctic Ice Chart, April 13, 1976
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).
31. Arctic Ice Chart, April 13, 1982
1982. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1982. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
32. Arctic Ice Chart, April 13, 1987
1987. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1987. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
33. Arctic Ice Chart, April 13, 1992
1992. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1992. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
34. Arctic Ice Chart, April 13, 1993
1993. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1993. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
35. Arctic Ice Chart, April 13, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
36. Arctic Ice Chart, April 13, 2000
2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 13, 2000. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
37. Arctic Ice Chart, April 14, 1975
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).
38. Arctic Ice Chart, April 14, 1980
1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1980. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
39. Arctic Ice Chart, April 14, 1997
1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1997. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
40. Arctic Ice Chart, April 14, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
41. Arctic Ice Chart, April 14, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 14, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
42. Arctic Ice Chart, April 15, 1966
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).
43. Arctic Ice Chart, April 15, 1967
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).
44. Arctic Ice Chart, April 15, 1968
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).
45. Arctic Ice Chart, April 15, 1970
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).
46. Arctic Ice Chart, April 15, 1971
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).
47. Arctic Ice Chart, April 15, 1978
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).
48. Arctic Ice Chart, April 15, 1984
1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1984. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
49. Arctic Ice Chart, April 15, 1986
1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1986. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
50. Arctic Ice Chart, April 15, 1996
1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1996. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
51. Arctic Ice Chart, April 15, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
52. Arctic Ice Chart, April 15, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 15, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
53. Arctic Ice Chart, April 16, 1973
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).
54. Arctic Ice Chart, April 16, 1974
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).
55. Arctic Ice Chart, April 16, 1985
1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1985. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
56. Arctic Ice Chart, April 16, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
57. Arctic Ice Chart, April 16, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 16, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
58. Arctic Ice Chart, April 17, 1972
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).
59. Arctic Ice Chart, April 17, 1975
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).
60. Arctic Ice Chart, April 17, 1979
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).
61. Arctic Ice Chart, April 17, 1980
1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1980. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
62. Arctic Ice Chart, April 17, 1989
1989. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1989. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
63. Arctic Ice Chart, April 17, 1990
1990. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1990. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
64. Arctic Ice Chart, April 17, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 17, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
65. Arctic Ice Chart, April 18, 1969
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).
66. Arctic Ice Chart, April 18, 1974
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).
67. Arctic Ice Chart, April 18, 1977
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).
68. Arctic Ice Chart, April 18, 1983
1983. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1983. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
69. Arctic Ice Chart, April 18, 1988
1988. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1988. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
70. Arctic Ice Chart, April 18, 1994
1994. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1994. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
71. Arctic Ice Chart, April 18, 1995
1995. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 18, 1995. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
72. Arctic Ice Chart, April 19, 1971
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).
73. Arctic Ice Chart, April 19, 1978
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).
74. Arctic Ice Chart, April 19, 1979
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).
75. Arctic Ice Chart, April 19, 1982
1982. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1982. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
76. Arctic Ice Chart, April 19, 1993
1993. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1993. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
77. Arctic Ice Chart, April 19, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 19, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
78. Arctic Ice Chart, April 2, 1973
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).
79. Arctic Ice Chart, April 2, 1979
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).
80. Arctic Ice Chart, April 2, 1981
1981. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1981. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
81. Arctic Ice Chart, April 2, 1990
1990. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1990. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
82. 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).
83. Arctic Ice Chart, April 2, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 2, 1998. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
84. Arctic Ice Chart, April 20, 1970
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).
85. Arctic Ice Chart, April 20, 1972
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).
86. Arctic Ice Chart, April 20, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 20, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
87. Arctic Ice Chart, April 20, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 20, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
88. Arctic Ice Chart, April 21, 1975
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).
89. Arctic Ice Chart, April 21, 1977
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).
90. Arctic Ice Chart, April 21, 1980
1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1980. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
91. Arctic Ice Chart, April 21, 1981
1981. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1981. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
92. Arctic Ice Chart, April 21, 1986
1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1986. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
93. Arctic Ice Chart, April 21, 1987
1987. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1987. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
94. Arctic Ice Chart, April 21, 1992
1992. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1992. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
95. Arctic Ice Chart, April 21, 1997
1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1997. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
96. Arctic Ice Chart, April 21, 1998
1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1998. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
97. Arctic Ice Chart, April 21, 1999
1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for April 21, 1999. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
98. Arctic Ice Chart, April 22, 1966
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).
99. Arctic Ice Chart, April 22, 1967
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).
100. Arctic Ice Chart, April 22, 1968
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).