V.G. Smirnov

Yu. A. Scherbakov

V.S. Loschilov

Sea Ice mapping in AARI based

on various space borne data

Arctic and Antarctic Research Institute St. Petersburg

www.aari.nw.ru

Information used forice charts construction

Satellites

Visual IR microwave spectral ranges

Data from manned/unmannedpolar stations and buoys

Data from aircraft (including ship based helicopters)

Ship based meteorological

and ice observationsData base

on previous ice charts,ice forecasting

Analytic center

Transformation and geolocation of satellite images using: a) orbital data b) coastal line

a) b)

NOAA, March 31, 2003

Composition of Okean SLR images, 01-07.01.2000

Ice information derived from Okean SLR images, 01-07.01.2000

Joint use of data received from different satellites

Scaled images RADARSAT & NOAA

Ice chart (c) constructed with the use of RADARSAT(a) and NOAA data, April 30, 1998

a) b)

c)

Use of NOAA IR data for of ice thickness determination(original technique developed at AARI is applied)

Barents Sea, April 1, 2001

Use of satellite data from modern satellites (different spectral ranges)

MODIS (TERRA) SAR (RADARSAT) May 11, 2001 January 29, 2001 Barents Sea

Ice charting using international egg codes

108 27 55 3 -

106 3 11*7 54 5 3

104 5 11*7 54 5 3

9953

103 77 53 3 -

102 6 11*7 54 5 3

107 27 54 3 -

107 37 55 3 -

81 6 11*7 54 4 3

102 7 11*7 44 5 3

108 27 55 3 -

73 47 55 3 -

107 27 54 3 -

94 57 53 3 -

104 5 11*7 54 5 3

103 5 11*7 54 5 3

108 27 55 3 -10

2X

10

43

10

2X

104 5 11*7 54 4 3

10

43

107 1 14 1*55 3 3

10

53

10

2X

10

2X

881X

103 5 11*7 54 5 3

94 57 53 3 -

104 5 11*7 54 5 3

10

2X

108 1 14 1*55 3 3

50 0 50 Kilometers

Ì 1:5000000

Ãðàí èöû ÷àñòåé ì î ðÿ

Ãðàí èöû ì î ðÿ

Âî çðàñò ëüäà ï ðåî áëàäàþ ù åé÷àñòí î é ñï ëî ÷åí í î ñòè

÷èñòîí à÷àëüí û å âèäûí èë àñ,ñêëÿí êàï ðèï àéñåðû éï ðèï àéñåðî -áåëû éï ðèï àéòî í êèéï ðèï àéñðåäí èéï ðèï àéòî ë ñòû éï ðèï àéñòàðû éï ðèï àéäâóõëåòí èéï ðèï àéì í î ãî ë åòí èéï ðèï àé

68° 68°

70° 70°

72° 72°

40°

40°

45°

45°

50°

50°

55°

55°

60°

60°

Barents Sea, April 26-30, 2002

Ice drift (May 11-29, 2002)

Ice drift determination using satellite imagery

Ice charting with the use of Arc view software

Conclusion

•Satellite imagery is the main source of data on ice conditions in the Arctic, Antarctic and ice covered seas. To increase the reliability of ice information derived from satellite imagery joint processing of the data from different spectral ranges and other data sources has to be applied.