Data from APO Weather Mast

Second Channel >= 1.0 micron

Time series of particle counts.

Note that in this plot the 1.0 micron channel has been multiplied by 123.4 before plotting. If the particle counts are given by a power law such that N = k / (d^4), the average distribution given by Giordano and Sarazin, the count in the 1.0 micron channel, multiplied by 123.4, should equal the count in the 0.3 micron channel. If this law were always true, the two plots would lie on top of each other.

Note that one sand event was reported by the APO observers. This event corresponds to the peak in the 1.0 micron dust count observed on the night of May 13-14.


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Last updated May 21, 1996.