VNB, LL, and IJC acknowledge support from the NSF via Grants ATM-9014600 and ATM-9410698 to CSU. Both LL and IJC were at CSU during the major period of this work. KK acknowledges support from the NSF via 9200667 to UAH, while AD acknowledges support via ATM-9022846 and ATM-9509810 and via cooperative agreements ATM-9104474 and 9401117 to SDSM&T. Mr. Ken Hartmann of SDSM&T assisted greatly with the PMS data processing from all the aircraft. Mr. M. Murphy and Dr. P. Krider graciously provided the surface field mill network analysis results. Particle charge data from the P-3 were provided by Dr. Ian Brooks. The authors acknowledge the assistance rendered by Drs. Paul Smith, Dennis Musil, and Jim Fankhauser and by Mr. Dan Breed. The Atmospheric Environment Service of Canada provided the 2D-P probe and New Mexico Tech provided some of the field mills for the T-28. The National Center for Atmospheric Research provided the reorder and cedric software used in the radar analysis.
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