These sea ice concentrations have been generated by applying the NASA Team algorithm to DMSP F8 SSM/I brightness temperature observations from 19 GHz (vertical and horizontal), 37- and 22 GHz vertical frequencies, calculating two gradients for use as weather filters. Global coverage is provided, but sea ice concentrations are only derived for ocean, ice, and possible ice surfaces poleward of 35 degrees latitude, from 1 August 1987 through 30 November 1988. In the Northern Hemisphere, where data are not filtered due to weather effects, first-year and multi-year concentrations (in percent) are calculated; total ice concentration is taken as the sum of these two. Only total ice is calculated for the Southern Hemisphere. 25 km swath data are in HDF, available via FTP.
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Province or State:
Cavalieri, D.J., J. Crawford, M. Drinkwater, W. J. Emery, D. T. Eppler, L.D. Farmer, M. Goodberlet, R. Jentz, A. Milman, C. Morris, R. Onstott, A. Schweiger, R. Shuchman, K. Steffen, C. T. Swift, C. Wackerman and R. L. Weaver. 1992, NASA Sea Ice Validation Program for the Defense Meteorological Satellite Program Special Sensor Microwave Imager: Final Report. NASA Technical Memorandum 104559. National Aeronautics and Space Administration, Washington, D.C. 126 pages.
Wentz, Frank J. 1992. Final Report Production of SSM/I Data Sets. RSS Technical Report 090192. Remote Sensing Systems, Santa Rosa, CA.