| タイトル | Faraday Rotation for SMOS Retrievals of Ocean Salinity and Soil Moisture |
| 本文（外部サイト） | http://hdl.handle.net/2060/20170003147 |
| 著者（英） | Le Vine, David M.; El-Nimri, Salem |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2016-05-09 |
| 言語 | eng |
| 内容記述 | Faraday rotation is a change in polarization as radiation propagates from the surface through the ionosphere to the sensor. At L-band (1.4 GHz) this change can be significant and can be important for the remote sensing of soil moisture and ocean salinity from space. Consequently, modern L-band radiometers (SMOS, Aquarius and SMOS) are polarimetric to measure Faraday rotation in situ so that a correction can be made. This is done using the ratio of the third and second Stokes parameters. In the case of SMOS this procedure has produced very noisy estimates. An alternate procedure is reported here in which the total electron content is estimated and averaged to reduce noise. |
| NASA分類 | Earth Resources and Remote Sensing |
| レポートNO | GSFC-E-DAA-TN40627 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
