Comparisons of observed ice properties and Envisat Advanced Synthetic Aperture Radar (ASAR) data during Nathanial B. Palmer cruise NBP09-01 and Oden cruise OSO08/09 ...

• Main Authors: Tekeli, Ahmet E, Kern, Stefan, Ackley, Stephen F, Ozsoy-Cicek, Burcu, Xie, Hongjie
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: International Polar Year 2007-2008 IPY; Antarctic; Asar; The Antarctic; West Antarctica; Antarc*; Antarctica; ice core; International Polar Year; IPY; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.839043; https://doi.pangaea.de/10.1594/PANGAEA.839043

Envisat Advanced Synthetic Aperture Radar (ASAR) Wide Swath Mode (WSM) images are used to derive C-band HH-polarization normalized radar cross sections (NRCS). These are compared with ice-core analysis and visual ship-based observations of snow and ice properties observed according to the Antarctic Sea Ice Processes and Climate (ASPeCt) protocol during two International Polar Year summer cruises (Oden 2008 and Palmer 2009) in West Antarctica. Thick first-year (TFY) and multi-year (MY) ice were the dominant ice types. The NRCS value ranges between -16.3 ± 1.1 and -7.6 ± 1.0 dB for TFY ice, and is -12.6 ± 1.3 dB for MY ice; for TFY ice, NRCS values increase from ~-15 dB to -9 dB from December/January to mid-February. In situ and ASPeCt observations are not, however, detailed enough to interpret the observed NRCS change over time. Co-located Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) vertically polarized 37 GHz brightness temperatures (TB37V), 7 day and 1 day averages as well as the ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...