| Description: | Since installation in September, the RH probe at the 60 meter level of the tower at the
Central Facility has indicated more than 1% high for saturated conditions. Therefore, the
1% offset in the datalogger program was removed. The offset was included to make up for
typical line voltage losses. Those losses may be present, but the offset of the RH probe
itself more than makes up for them (the probe specifications would allow it to have a
potential +/- 3% offset). The offset was removed on November 14, 1995 between 1440 and
1445 GMT, with no loss or corruption of data. The corrected offset should bring the RH at
saturated conditions to within 1% of 100% and will result in more accurate measurements
throughout the measurement range.
Vapor pressure is correspondingly reduced slightly. |