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Proceedings Paper

Sea ice remote sensing using AMSR-E data: surface roughness and refractive index
Author(s): Inchul Shin; Jongseo Park; Aesook Suh; Sungwook Hong
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Paper Abstract

Sea ice is a good indicator to monitor the global climate change. Many of previous studies using the satellite observations show a steady decline in Arctic sea ice. The study investigates the characteristics of the averaged surface roughness, and refractive index from March 2003 to July 2011 using the AMSR-E daily data. The surface roughness and refractive index of the sea ice is retrieved using a unique inversion algorithm based on the characteristics of the polarized reflectivities, the Hong approximation, and the incidence angles of the many current passive microwave satellite sensors. The averaged roughness and refractive index show the downward trend and opposite signature with an acceleration, respectively. From the seasonal variations, the averaged roughness and refractive index show the minimum and maximum values in the summer period, respectively. In addition, the annual peaks of two physical parameters exhibit the phase difference of a month. In conclusion, this research provides a physical explanation that the sea ice is melting increasingly using the satellite observation.

Paper Details

Date Published: 13 October 2011
PDF: 6 pages
Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011, 81751J (13 October 2011); doi: 10.1117/12.898054
Show Author Affiliations
Inchul Shin, Korea Meteorological Administration (Korea, Republic of)
Jongseo Park, Korea Meteorological Administration (Korea, Republic of)
Aesook Suh, Korea Meteorological Administration (Korea, Republic of)
Sungwook Hong, Korea Meteorological Administration (Korea, Republic of)


Published in SPIE Proceedings Vol. 8175:
Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011
Charles R. Bostater; Stelios P. Mertikas; Xavier Neyt; Miguel Velez-Reyes, Editor(s)

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