Title Ice-band characteristics of the Antarctic seasonal ice zone observed using MOS MESSR images
Author Ishida, K.; Ohshima, K.I.
Author Affil Ishida, K., Toba National College of Maritime Technology, Toba, Japan. Other: Hokkaido University, Japan
Source Atmosphere-Ocean, 47(3), p.169-183, . Publisher: Canadian Meteorological and Oceanographic Society, Ottawa, ON, Canada. ISSN: 0705-5900
Publication Date Sept. 2009
Notes In English with French summary. Based on Publisher-supplied data Ant. Acc. No: 90978. GeoRef Acc. No: 308247
Index Terms ice; ice floes; orientation; remote sensing; Antarctica--Queen Maud Land; Antarctica; ice bands; Marine Observation Satellite; monitoring; Multispectral Electronic Self Scanning Radiometer; Queen Maud Land; radiometers; satellite methods; seasonal variations; winds
Abstract Ice-band characteristics for the region off East Queen Maud Land in Antarctica were examined and their relationship with the wind conditions was assessed using a large number of Marine Observation Satellite (MOS) Multispectral Electronic Self Scanning Radiometer (MESSR) images received at Syowa Station during the period 1989-93. Analyses from 43 examples of bands captured from August to December suggest that ice-band formation and band scale are affected by both wind speed and direction over approximately the preceding four days (defined as the effective wind). Ice-band width and spacing are significantly correlated with the effective wind speed and the maximum wind speed during that period. The long axis of ice bands tends to be oriented at 70-90 (mean of 75) to the right of the effective wind direction. The band scales decrease from winter (August) to summer (December) with typical band spacing of 4-6 km in winter and 1-2 km in summer. This seems to be primarily due to a decrease in ice floe size and partly due to a decrease in the effective wind speed from winter to summer. Band scale decreases from the ice interior to the ice edge under conditions of off-ice winds.
URL http://hdl.handle.net/10.3137/OC300.2009
Publication Type journal article
Record ID 65005052