Site: Chestnut Ridge vegetation: deciduous forest, eastern hardwood Latitude:35.9311N Longitude:84.3323W Elevation:371 m Leaf Area Index: varies seasonally with a max of 4 - 5. canopy height:24 - 26 m Flux measurement height: 38 m Time Zone: EST 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