| タイトル | Observation of sea ice properties with the Nimbus-7 SMMR |
| 著者（英） | Campbell, W. J.; Gloersen, P.; Cavalieri, D. J. |
| 著者所属（英） | Geological Survey|NASA Goddard Space Flight Center|Puget Sound Univ. |
| 発行日 | 1981-01-01 |
| 言語 | eng |
| 内容記述 | Techniques for treating Nimbus-7 scanning multispectral microwave radiometer (SMMR) data to retrieve information on sea ice parameters are discussed. The SMMR produces information on ice concentration, temperature, multiyear ice fraction, thin ice fraction, difference between thin and thick ice temperatures, and atmospheric opacity. Sea ice emissivities as determined from ground truth and Nimbus-7 SMMR observations are provided, noting the necessity to further characterize the values with a larger data base. It was found that longest wavelengths displayed the largest contrast between open water and sea. Ice emissivity polarization differences are no more than 0.15 at any wavelength, while water polarizations are never less than 0.52. Ice emissivity increases directly with wavelength, and water emissivity increases inversely. Algorithmic representations of SMMR data to retrieve sea ice parameters are described. |
| NASA分類 | OCEANOGRAPHY |
| レポートNO | 83A10008 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/407132 |
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