Site: Chestnut Ridge vegetation: deciduous forest, eastern hardwood Latitude:35.95906 Longitude:84.28744 Elevation:314.3m Leaf Area Index: varies seasonally with a max of 4 - 5. canopy height:24 - 26 m Flux measurement height: 38 m Following is a list and units of data contained in the CH06_XXX.DAT files where XXX is the calender day of year. Column variable units 1 decimal day - 2 calender day - 3 hour - 4 wind speed m/s 5 wind direction degrees 6 air temperature degrees C 7 relative humidity % 8 pressure mb 9 incoming PAR uE/m2/s 10 outgoing PAR uE/m2/s 11 incoming global W/m2 12 outgoing global W/m2 13 incoming longwave W/m2 14 outgoing longwave W/m2 15 net radiation W/m2 16 ground heat flux W/m2 17 wetness - 18 precip mm 19 surface temperature degrees C 20 soil temp (2 cm) degrees C 21 soil temp (4 cm) degrees C 22 soil temp (8 cm) degrees C 23 soil temp (16 cm) degrees C 24 soil temp (32 cm) degrees C 25 soil temp (64 cm) degrees C 26 soil temp (128 cm) degrees C 27 u_bar (sonic) m/s 28 momentum flux (u'w') m2/s2 29 u'2 m2/s2 30 v'2 m2/s2 31 w'2 m2/s2 32 sensible heat flux W/m2 33 latent heat flux W/m2 34 CO2 flux mg CO2/m2/s 35 u_bar (forest floor) m/s 36 momentum flux (u'w') m2/s2 37 u'2 m2/s2 38 v'2 m2/s2 39 w'2 m2/s2 40 sensible heat flux W/m2 41 latent heat flux W/m2 42 CO2 flux mg CO2/m2/s 43 soil moisture (5 cm) volumetric water content 44 soil moisture (10 cm) volumetric water content 45 soil moisture (20 cm) volumetric water content 46 soil moisture (50 cm) volumetric water content 47 soil moisture (1 m) volumetric water content 48 soil moisture (5 cm) standard deviation 49 soil moisture (10 cm) standard deviation 50 soil moisture (20 cm) standard deviation