By Topic

Evaluation of seawater permittivity models at 150 GHz using satellite observations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
T. J. Greenwald ; Cooperative Inst. for Res. in the Atmos., Colorado State Univ., Fort Collins, CO, USA ; A. S. Jones

Multisensor satellite measurements from the special sensor microwave water vapor sounder (SSM/T-2), special sensor microwave imager (SSM/I), and operational linescan system (OLS) are used to retrieve sea surface emissivity at 150 GHz with the goal of assessing selected permittivity models. Retrievals were limited to clear-sky SSM/T-2 field-of-views under arctic winter conditions to minimize atmospheric attenuation. Results show there is sometimes wide disagreement between the models and the observations even when considering measurement and model errors with differences as high as 2.4% (or equivalently ≈5 K). Models consisting of two relaxation time constants rather than one are found to be in closer agreement with the observations. The largest permittivity model errors have substantial effects on physically based atmospheric parameter retrievals with systematic errors of -65% and -20% for a column water vapor amount of 2 kg m-2 and cloud liquid water path of 0.1 kg m-2 respectively

Published in:

IEEE Transactions on Geoscience and Remote Sensing  (Volume:37 ,  Issue: 5 )