Arrangement of tower sensors. 
The names (sonic 1,2,3 and Tg,1,2,3) refer to the raw data files which 
correspond to the data available in the data base. 
Location at tower indicates in which direction the sensors were mounted 
as seen from the tower, the uncertainty here is about 10-20deg. 
Time when measurement commenced are the times from which on all sensors 
were active.
CSAT-3 measurements resulting in v>50m/s should be discarded.  
(S.Els 0704.2008)

T2-Armazones 28m tower
Altitude    CSAT-3     Location  CSAT3         Temperature    Location    Time of commence    
                       at tower  structure       probe         at tower    of measurements 
 2m         AWS          --       --             Tg            --          2006-09-15 18UT
11m         Sonic 3    N(NW)       N             T3            NE          2006-09-15 18UT
20m         Sonic 2    N(NW)       N             T2            NE             "
28m         Sonic 1    N(NW)       N             T1            NE             "              

Comments:  - Malfunction of temperature probe T1(28m) between 20060929-20061022. Temperature 
             readings during this periods are T1=20C and should be discarded. 


T3-Tolonchar 30m tower
Altitude    CSAT-3     Location    CSAT-3       Temperature    Location    Time of commence   
                       at tower    structure       probe         at tower    of measurements
 2m         AWS          --         --             Tg            --          2007-03-09 18UT
11m         Sonic 1    N(NW)        N              T1            NE          2007-03-09 18UT
20m         Sonic 2    N(NW)        N              T2            NE             "
30m         Sonic 3    N(NW)        N              T3            NE             "

Comments: - The 2m temperature probe (Tg) reads sporadically, but often, Tg=10C. 
            Therefore, Tg=10C  should be discarded.