"An Analysis of the Operation and Interpretation of Weather Radar by Flight Crews,"
by Dr. Khatwa, presented at the 2007 conference, can be found at this
website:
wwwDOTatecDOTorDOTjpFORWARDSLASHfsfSPACE2007SPACEselDOTpdf
It's in Japanese, however; perhaps someone has time to translate it.