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2501. Arctic Ice Chart, September 19, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 19, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2502. Arctic Ice Chart, September 2, 1966

1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for September 2, 1966. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).

2503. Arctic Ice Chart, September 2, 1967

1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1967. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2504. Arctic Ice Chart, September 2, 1968

1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1968. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2505. Arctic Ice Chart, September 2, 1971

1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1971. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2506. Arctic Ice Chart, September 2, 1984

1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1984. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2507. Arctic Ice Chart, September 2, 1985

1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1985. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2508. Arctic Ice Chart, September 2, 1986

1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2509. 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).

2510. Arctic Ice Chart, September 2, 1996

1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1996. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2511. Arctic Ice Chart, September 2, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2512. Arctic Ice Chart, September 2, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2513. Arctic Ice Chart, September 2, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 2, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).

2514. Arctic Ice Chart, September 20, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 20, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2515. Arctic Ice Chart, September 20, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 20, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).

2516. Arctic Ice Chart, September 20, 1979

1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 20, 1979. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2517. Arctic Ice Chart, September 20, 1993

1993. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 20, 1993. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2518. Arctic Ice Chart, September 20, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 20, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2519. Arctic Ice Chart, September 21, 1971

1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1971. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2520. Arctic Ice Chart, September 21, 1972

1972. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1972. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2521. Arctic Ice Chart, September 21, 1973

1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1973. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2522. Arctic Ice Chart, September 21, 1977

1977. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1977. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2523. Arctic Ice Chart, September 21, 1987

1987. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1987. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2524. Arctic Ice Chart, September 21, 1992

1992. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1992. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2525. Arctic Ice Chart, September 21, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2526. Arctic Ice Chart, September 21, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 21, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2527. Arctic Ice Chart, September 22, 1975

1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1975. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2528. Arctic Ice Chart, September 22, 1978

1978. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).

2529. Arctic Ice Chart, September 22, 1980

1980. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1980. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2530. Arctic Ice Chart, September 22, 1986

1986. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1986. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2531. Arctic Ice Chart, September 22, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2532. Arctic Ice Chart, September 22, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2533. Arctic Ice Chart, September 22, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 22, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2534. Arctic Ice Chart, September 23, 1966

1966. Arctic Climate System (ACSYS). This line shapefile contains ice observations in the Arctic region for September 23, 1966. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).

2535. Arctic Ice Chart, September 23, 1967

1967. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1967. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2536. Arctic Ice Chart, September 23, 1968

1968. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1968. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2537. Arctic Ice Chart, September 23, 1971

1971. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1971. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2538. Arctic Ice Chart, September 23, 1974

1974. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1974. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2539. Arctic Ice Chart, September 23, 1976

1976. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1976. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2540. Arctic Ice Chart, September 23, 1981

1981. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1981. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2541. Arctic Ice Chart, September 23, 1984

1984. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1984. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2542. Arctic Ice Chart, September 23, 1985

1985. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1985. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2543. 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).

2544. Arctic Ice Chart, September 23, 1996

1996. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1996. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2545. Arctic Ice Chart, September 23, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2546. Arctic Ice Chart, September 23, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2547. Arctic Ice Chart, September 23, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 23, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2548. Arctic Ice Chart, September 24, 1970

1970. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 24, 1970. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2549. Arctic Ice Chart, September 24, 1973

1973. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 24, 1973. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2550. Arctic Ice Chart, September 24, 1997

1997. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 24, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2551. Arctic Ice Chart, September 24, 1998

1998. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 24, 1998. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2552. Arctic Ice Chart, September 24, 1999

1999. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 24, 1999. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2553. Arctic Ice Chart, September 25, 1975

1975. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1975. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2554. Arctic Ice Chart, September 25, 1979

1979. Arctic Climate System (ACSYS). This polygon shapefile contains ice observations in the Arctic region for September 25, 1979. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).

2555. 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).

2556. 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).

2557. 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).

2558. 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).

2559. 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).

2560. 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).

2561. 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).

2562. 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).

2563. 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).

2564. 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).

2565. 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).

2566. 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).

2567. 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).

2568. 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).

2569. 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).

2570. 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).

2571. 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).

2572. 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).

2573. 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).

2574. 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).

2575. 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).

2576. 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).

2577. 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).

2578. 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).

2579. 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).

2580. 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).

2581. 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).

2582. 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).

2583. 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).

2584. 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).

2585. 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).

2586. 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).

2587. 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).

2588. 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).

2589. 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).

2590. 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).

2591. 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).

2592. 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).

2593. 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).

2594. 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).

2595. 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).

2596. 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).

2597. 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).

2598. 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).

2599. 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).

2600. 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).