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2501. Arctic Ice Chart, September 25, 1980

1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1980. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2502. Arctic Ice Chart, September 25, 1983

1983. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1983. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2503. Arctic Ice Chart, September 25, 1989

1989. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1989. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2504. Arctic Ice Chart, September 25, 1995

1995. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1995. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2505. Arctic Ice Chart, September 25, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2506. Arctic Ice Chart, September 25, 2000

2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 2000. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2507. Arctic Ice Chart, September 26, 1972

1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1972. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2508. Arctic Ice Chart, September 26, 1974

1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1974. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2509. Arctic Ice Chart, September 26, 1982

1982. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1982. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2510. Arctic Ice Chart, September 26, 1988

1988. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1988. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2511. Arctic Ice Chart, September 26, 1994

1994. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1994. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2512. Arctic Ice Chart, September 26, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2513. Arctic Ice Chart, September 26, 2000

2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 26, 2000. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2514. Arctic Ice Chart, September 27, 1973

1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1973. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2515. Arctic Ice Chart, September 27, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2516. Arctic Ice Chart, September 27, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).

2517. Arctic Ice Chart, September 27, 1979

1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1979. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2518. Arctic Ice Chart, September 27, 1993

1993. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1993. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2519. Arctic Ice Chart, September 27, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 27, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2520. Arctic Ice Chart, September 28, 1971

1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1971. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2521. Arctic Ice Chart, September 28, 1981

1981. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1981. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2522. Arctic Ice Chart, September 28, 1987

1987. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1987. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2523. Arctic Ice Chart, September 28, 1992

1992. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1992. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2524. Arctic Ice Chart, September 28, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2525. Arctic Ice Chart, September 28, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2526. Arctic Ice Chart, September 28, 2000

2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 28, 2000. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2527. Arctic Ice Chart, September 29, 1975

1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1975. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2528. Arctic Ice Chart, September 29, 1977

1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1977. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2529. Arctic Ice Chart, September 29, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).

2530. Arctic Ice Chart, September 29, 1980

1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1980. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2531. Arctic Ice Chart, September 29, 1984

1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1984. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2532. Arctic Ice Chart, September 29, 1986

1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1986. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2533. Arctic Ice Chart, September 29, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2534. Arctic Ice Chart, September 29, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2535. Arctic Ice Chart, September 29, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2536. Arctic Ice Chart, September 29, 2000

2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 29, 2000. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2537. Arctic Ice Chart, September 3, 1970

1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1970. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2538. Arctic Ice Chart, September 3, 1973

1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1973. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2539. Arctic Ice Chart, September 3, 1974

1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1974. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2540. Arctic Ice Chart, September 3, 1977

1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1977. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2541. Arctic Ice Chart, September 3, 1979

1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1979. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2542. Arctic Ice Chart, September 3, 1983

1983. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1983. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2543. Arctic Ice Chart, September 3, 1990

1990. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1990. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2544. Arctic Ice Chart, September 3, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2545. Arctic Ice Chart, September 3, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2546. Arctic Ice Chart, September 3, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 3, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2547. Arctic Ice Chart, September 30, 1967

1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1967. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2548. Arctic Ice Chart, September 30, 1968

1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1968. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2549. Arctic Ice Chart, September 30, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2550. 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).

2551. Arctic Ice Chart, September 30, 1996

1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1996. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2552. Arctic Ice Chart, September 30, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2553. Arctic Ice Chart, September 30, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 30, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2554. Arctic Ice Chart, September 4, 1972

1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2555. Arctic Ice Chart, September 4, 1975

1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1975. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2556. Arctic Ice Chart, September 4, 1980

1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1980. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2557. Arctic Ice Chart, September 4, 1989

1989. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1989. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2558. Arctic Ice Chart, September 4, 1995

1995. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1995. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2559. Arctic Ice Chart, September 4, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2560. Arctic Ice Chart, September 4, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 4, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2561. Arctic Ice Chart, September 5, 1988

1988. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 5, 1988. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2562. Arctic Ice Chart, September 5, 1994

1994. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 5, 1994. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2563. Arctic Ice Chart, September 5, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 5, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2564. Arctic Ice Chart, September 6, 1973

1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1973. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2565. Arctic Ice Chart, September 6, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1976. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2566. Arctic Ice Chart, September 6, 1977

1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1977. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2567. Arctic Ice Chart, September 6, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1978. This polygon shapefile contains ice observations in th... Arctic Climate System (ACSYS).

2568. Arctic Ice Chart, September 6, 1979

1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1979. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2569. Arctic Ice Chart, September 6, 1982

1982. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1982. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2570. Arctic Ice Chart, September 6, 1993

1993. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1993. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2571. Arctic Ice Chart, September 6, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 6, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2572. Arctic Ice Chart, September 7, 1971

1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 1971. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2573. Arctic Ice Chart, September 7, 1987

1987. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 1987. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2574. Arctic Ice Chart, September 7, 1992

1992. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 1992. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2575. Arctic Ice Chart, September 7, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2576. Arctic Ice Chart, September 7, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2577. Arctic Ice Chart, September 7, 2000

2000. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 7, 2000. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2578. Arctic Ice Chart, September 8, 1972

1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2579. Arctic Ice Chart, September 8, 1975

1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1975. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2580. Arctic Ice Chart, September 8, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1978. This polygon shapefile contains ice observations in th... Arctic Climate System (ACSYS).

2581. Arctic Ice Chart, September 8, 1980

1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1980. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2582. Arctic Ice Chart, September 8, 1986

1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2583. Arctic Ice Chart, September 8, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2584. Arctic Ice Chart, September 8, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2585. Arctic Ice Chart, September 8, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 8, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2586. Arctic Ice Chart, September 9, 1967

1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1967. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2587. Arctic Ice Chart, September 9, 1968

1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1968. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2588. Arctic Ice Chart, September 9, 1974

1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1974. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2589. Arctic Ice Chart, September 9, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1976. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2590. Arctic Ice Chart, September 9, 1981

1981. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1981. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2591. Arctic Ice Chart, September 9, 1984

1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1984. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2592. Arctic Ice Chart, September 9, 1985

1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1985. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2593. 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).

2594. Arctic Ice Chart, September 9, 1996

1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1996. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2595. Arctic Ice Chart, September 9, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2596. Arctic Ice Chart, September 9, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2597. Arctic Ice Chart, September 9, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 9, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).