FOGs_s

ASIT FOG horn (visibility) summary data

The foghorn is installed on a tower on the air-sea interaction tower platform approximately 14 meters above sea level. The term Visibility is a function of the true visibility - but the unit has not been calibrated to provide meaningful units

Here is the list of field names:

Field name	Description	Units
Year	The year the data were collected	n/a
Yday	Decimal year day	UTC, January 1 at 00:00 is 1.0
MO	The month the data was collected	UTC
DA	The day the data were collected	UTC
HH	The hour the data were collected	UTC
MM	The minute the data were collected	UTC
SS	The second the data were collected	UTC
nrecs	Total number of records collected during averaging period (based on FogLevels)	n/a
Vis_mean	The mean value of the fog sensor	counts
Vis_std	The standard deviation of the fog sensor	counts
Alarm_on	Mean Alarm (on=1/off=1)	n/a
AlarmThreshold	The threshold for alarm mode (counts)	counts
Temperuature	The temperature (degC) of the fog sensor	Degrees Celcius
Vbattery	The input battery voltage (V)	Volts