Surname: Heinselman First Name: Craig Status= other Institution: SRI International E-mail: craig.heinselman@sri.com ---------------------------------------- Title: ISR neutral winds and collision frequencies: new insights ---------------------------------------- Authors: Craig Heinselman Jeffrey Thayer ---------------------------------------- Abstract: ISR measurements of E-region neutral winds have a natural coordinate system based on the direction of the perpendicular current vector. We exploit this coordinate system to gain insight into the relationship between collision frequency and wind estimates. ---------------------------------------- Discipline Category: Analysis Techniques