This resource provides an abstract: To better measure hurricane-force winds, the authors studied various types of synthetic aperture radar (SAR) wind retrieval schemes applied to the high winds observed in 2004 during Hurricane Ivan. They found that the newly-developed Cmod5 empirical geophysical model function (GMF) outperforms the commonly used Cmod4 GMF in analyzing these high winds. They suggest that continued analysis of SAR wind mapping under extreme wind conditions can be a useful tool for hurricane tracking and prediction.