| Description: | Data quality for this site is excellent this month. Daytime data are 100 %
present. Of the present daytime data, 98% are at or below the 5% quality
assurance threshold. Severe flags early in the morning on the 4th through
the 21st, and on the 30th indicate that the DS, DD and NIP are above
twilight empirical limits. Low-level flags later in the morning and around
mid-day during the second week of the month indicate that the DS is too low
by the three-component test, or that the DD or NIP is too high. Low-level
flags late in the afternoon on clear or partly cloudy days indicate the
opposite. Heavily overcast skies pushed the DS and DD below daytime or
twilight empirical limits on a number of occasions. On the afternoon of the
22nd the NIP, along with the DD and DS signals, fell below daytime limits
for a few minutes. Moderate flags later the same day indicate that the DS
is too high by the three-component test. No problems are notes in the UIR,
DIR or US signals. |