Appendix H

CURRENT WET COLLECTOR PROBLEMS



PUSHING PLANNING FOR NADP SAMPLE COLLECTION PAST 2000

ARE IMPROVEMENTS INCOMPATIBLE WITH NETWORK UNIFORMITY


THE M.I.M. Syndrome

    MADE IN MIAMI

    (At least) 3 attributes

            1. sensor insensitive to light snow particularly associated with winds

            2. collector mainframe/driving mechanism extremely susceptible to icing

            3. bucket "aspect ratio" -wind scour
                The bucket is too wide for being so short or
                the bucket is too short for being so wide


NETWORK HISTORY

FEEDBACK FROM SITES

11 grid sensor seems to operate better in snow than the current 7 grid sensor
WY95 case


What to do?