File naming convention:

  ha3<approximate depth>.dat

  (ex.  ha390.dat is the thermister located ~90m)

  There are 7 thermisters at approximately 60, 80, 90, 100, 120, 130 & 150m.


File format:

  Column	Item
  
     1		Year
     2		Month
     3		Day
     4		Hour
     5		Temperature (Deg C)