Antarctic sea ice mapping using the AVHRR

A sea ice mapping scheme based on Advanced Very High Resolution Radiometer (AVHRR) data from the National Oceanic and Atmospheric Administration (NOAA) polar orbiting satellites has been developed and applied to daylight images taken between November 1989 to January 1990 and November 1990 to January...

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Bibliographic Details
Published in:Remote sensing of environment 1993-08, Vol.45 (2), p.155-163
Main Authors: Zibordi, Giuseppe, Van Woert, Michael L
Format: Article
Language:English
Subjects:
540310 - Environment, Aquatic- Basic Studies- (1990-)
ANTARCTIC REGIONS
ANTARCTICA
ATLANTIC OCEAN
CRYOSPHERE
Earth, ocean, space
ENVIRONMENTAL SCIENCES
Exact sciences and technology
External geophysics
ICE
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
Physics of the oceans
POLAR REGIONS
RADIATION DETECTORS
RADIOMETERS
REMOTE SENSING
SATELLITES
Sea ice
SEAS
SEASONAL VARIATIONS
SURFACE WATERS
US NOAA
US ORGANIZATIONS
VARIATIONS
WEDDELL SEA
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Summary:A sea ice mapping scheme based on Advanced Very High Resolution Radiometer (AVHRR) data from the National Oceanic and Atmospheric Administration (NOAA) polar orbiting satellites has been developed and applied to daylight images taken between November 1989 to January 1990 and November 1990 to January 1991 over the Weddell and the Ross Seas. After masking the continent and ice shelves, sea ice is discriminated from clouds and open sea using thresholds applied to the multidimensional space formed by AVHRR Channel 2, 3, and 4 radiances. Sea ice concentrations in cloud-free regions are then computed using the tie-point method. Results based on the analysis of more than 70 images show that the proposed scheme is capable of properly discriminating between sea ice, open sea, and clouds, under most conditions, thus allowing high resolution sea ice maps to be produced during the austral summer season.
ISSN:0034-4257
1879-0704
DOI:10.1016/0034-4257(93)90039-Z