Ceilometer
	Header	Units	Description
1	date	[yyyy-mm-dd]	yyyy' is the year, mm is the month, dd is the day
2	time	[hh:mm]	hh:mm' is the middle of the 10 or 30 minute averaging period, e.g. 00:00-00:30 -> 00:15
3	 decimal_day	 [#]	decimal day of year
4	 BL_Height1	 [m]	First boundary layer height (-999 if no candidate)
5	 BL_Index1	 [#]	Quality index of the First boundary layer height
6	 BL_Height2	 [m]	Second boundary layer height (-999 if no candidate)
7	 BL_Index2	 [#]	Quality index of the second boundary layer height
8	 BL_Height3	 [m]	Third boundary layer height (-999 if no candidate)
9	 BL_Index3	 [#]	Quality index of the third boundary layer height
10	 Cloud_Status	 [#]	Cloud detection status
11	 Cloud_1	 [m]	First cloud base
12	 Cloud_2	 [m]	Second cloud base
13	 Cloud_3	 [m]	Third cloud base

