format980512
WLEF tower data file format:  980505-999999
N=86

 1  mode yymmddhhmmss
 3  T0 RH0 MR0 U0 V0 TB0 WS0max W0bar T0sonic             { 396 m }
12  T1 RH1 MR1 U1 V1 TB1 WS1max W1bar T1sonic             { 122 m }
21  T2 RH2 MR2 U2 V2 TB2 WS2max W2bar T2sonic             {  30 m }
30  V1 L1CO2 L1Box MFC1 V2 L2CO2 L2Box MFC2
38  L3CO2 L3H2O L3Box L3T L4CO2 L4H2O L4Box L4T L5CO2 L5H2O L5Box L5T
50  L1P L2P L3P L4P L5P Vt Vb Vn Vc Vh Vl Tank9 Tank10 Tank11 Tank12 TankR XXX
67  top_H2O top_CO2 top_airT top_airP top_Flow top_cellT  { tower LiCor 396 m }
    mid_H2O mid_CO2 mid_airT mid_airP mid_Flow mid_cellT  { tower LiCor 122 m }
79  Pamb PAR Troom MFM Rain Rnet cooler? nsamples