The data are from Chapman, W. L. and J. E. Walsh, Long-Range Prediction of Regional Sea Ice Anomalies in the Arctic, Weather and Forecasting, 6, pp 271-288, 1991. The data are available from the The National Snow and Ice Data Center. These daily graphics have been derived at NCEP by first finding the fourier coefficients that best match the average of the 12 times per year observations over the periods of record. They are not linearly interpolated, as the seasonal cycle is distinctly sinusoidal rather than straight lines for a month at a time. The fourier coefficients are then used to estimate the daily values.

NCEP.EMC.Seaice@noaa.gov
Last Modified 27 May 2005
Return to main ice climatology page

Date Northern Southern
January 01 01
January 02 02
January 03 03
January 04 04
January 05 05
January 06 06
January 07 07
January 08 08
January 09 09
January 10 10
January 11 11
January 12 12
January 13 13
January 14 14
January 15 15
January 16 16
January 17 17
January 18 18
January 19 19
January 20 20
January 21 21
January 22 22
January 23 23
January 24 24
January 25 25
January 26 26
January 27 27
January 28 28
January 29 29
January 30 30
January 31 31
February 01 01
February 02 02
February 03 03
February 04 04
February 05 05
February 06 06
February 07 07
February 08 08
February 09 09
February 10 10
February 11 11
February 12 12
February 13 13
February 14 14
February 15 15
February 16 16
February 17 17
February 18 18
February 19 19
February 20 20
February 21 21
February 22 22
February 23 23
February 24 24
February 25 25
February 26 26
February 27 27
February 28 28
March 01 01
March 02 02
March 03 03
March 04 04
March 05 05
March 06 06
March 07 07
March 08 08
March 09 09
March 10 10
March 11 11
March 12 12
March 13 13
March 14 14
March 15 15
March 16 16
March 17 17
March 18 18
March 19 19
March 20 20
March 21 21
March 22 22
March 23 23
March 24 24
March 25 25
March 26 26
March 27 27
March 28 28
March 29 29
March 30 30
March 31 31
April 01 01
April 02 02
April 03 03
April 04 04
April 05 05
April 06 06
April 07 07
April 08 08
April 09 09
April 10 10
April 11 11
April 12 12
April 13 13
April 14 14
April 15 15
April 16 16
April 17 17
April 18 18
April 19 19
April 20 20
April 21 21
April 22 22
April 23 23
April 24 24
April 25 25
April 26 26
April 27 27
April 28 28
April 29 29
April 30 30
May 01 01
May 02 02
May 03 03
May 04 04
May 05 05
May 06 06
May 07 07
May 08 08
May 09 09
May 10 10
May 11 11
May 12 12
May 13 13
May 14 14
May 15 15
May 16 16
May 17 17
May 18 18
May 19 19
May 20 20
May 21 21
May 22 22
May 23 23
May 24 24
May 25 25
May 26 26
May 27 27
May 28 28
May 29 29
May 30 30
May 31 31
June 01 01
June 02 02
June 03 03
June 04 04
June 05 05
June 06 06
June 07 07
June 08 08
June 09 09
June 10 10
June 11 11
June 12 12
June 13 13
June 14 14
June 15 15
June 16 16
June 17 17
June 18 18
June 19 19
June 20 20
June 21 21
June 22 22
June 23 23
June 24 24
June 25 25
June 26 26
June 27 27
June 28 28
June 29 29
June 30 30
July 01 01
July 02 02
July 03 03
July 04 04
July 05 05
July 06 06
July 07 07
July 08 08
July 09 09
July 10 10
July 11 11
July 12 12
July 13 13
July 14 14
July 15 15
July 16 16
July 17 17
July 18 18
July 19 19
July 20 20
July 21 21
July 22 22
July 23 23
July 24 24
July 25 25
July 26 26
July 27 27
July 28 28
July 29 29
July 30 30
July 31 31
August 01 01
August 02 02
August 03 03
August 04 04
August 05 05
August 06 06
August 07 07
August 08 08
August 09 09
August 10 10
August 11 11
August 12 12
August 13 13
August 14 14
August 15 15
August 16 16
August 17 17
August 18 18
August 19 19
August 20 20
August 21 21
August 22 22
August 23 23
August 24 24
August 25 25
August 26 26
August 27 27
August 28 28
August 29 29
August 30 30
August 31 31
September 01 01
September 02 02
September 03 03
September 04 04
September 05 05
September 06 06
September 07 07
September 08 08
September 09 09
September 10 10
September 11 11
September 12 12
September 13 13
September 14 14
September 15 15
September 16 16
September 17 17
September 18 18
September 19 19
September 20 20
September 21 21
September 22 22
September 23 23
September 24 24
September 25 25
September 26 26
September 27 27
September 28 28
September 29 29
September 30 30
October 01 01
October 02 02
October 03 03
October 04 04
October 05 05
October 06 06
October 07 07
October 08 08
October 09 09
October 10 10
October 11 11
October 12 12
October 13 13
October 14 14
October 15 15
October 16 16
October 17 17
October 18 18
October 19 19
October 20 20
October 21 21
October 22 22
October 23 23
October 24 24
October 25 25
October 26 26
October 27 27
October 28 28
October 29 29
October 30 30
October 31 31
November 01 01
November 02 02
November 03 03
November 04 04
November 05 05
November 06 06
November 07 07
November 08 08
November 09 09
November 10 10
November 11 11
November 12 12
November 13 13
November 14 14
November 15 15
November 16 16
November 17 17
November 18 18
November 19 19
November 20 20
November 21 21
November 22 22
November 23 23
November 24 24
November 25 25
November 26 26
November 27 27
November 28 28
November 29 29
November 30 30
December 01 01
December 02 02
December 03 03
December 04 04
December 05 05
December 06 06
December 07 07
December 08 08
December 09 09
December 10 10
December 11 11
December 12 12
December 13 13
December 14 14
December 15 15
December 16 16
December 17 17
December 18 18
December 19 19
December 20 20
December 21 21
December 22 22
December 23 23
December 24 24
December 25 25
December 26 26
December 27 27
December 28 28
December 29 29
December 30 30
December 31 31

Valid HTML 4.01!