Goodwin Creek Watershed (Mississippi) Flux Data

CONTACT:

Tilden Meyers
NOAA/ATDD   
P.O. Box 2456
Oak Ridge, TN 37830
PH:865-576-1245
meyers@atdd.noaa.gov

SITE INFORMATION:

site: Goodwin Creek Watershed 
vegetation: grassland
Latitude:34.25
Longitude:89.97
leaf Area Index: about 2.0
canopy height: estimated from 20 - 40 cm
flux system measurement height: 4 m

DATA FILE INFORMATION:

Following is a list and units of data contained in the GCYY_XXX.DAT files 
where YY is the two digit year (e.g. 02 = 2002) and 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 (Rg_in-Rg_out+Lw_in-Lw_out)
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 		u_bar (sonic)		m/s
27		momentum flux (u'w') 	m2/s2
28		u'2			m2/s2
29		v'2			m2/s2
30		w'2			m2/s2
31		sensible heat flux 	W/m2
32		latent heat flux	W/m2  
33		CO2 flux 		mg CO2/m2/s
34		soil moisture (10 cm)   volumetric water content
35		soil moisture (20 cm)	volumetric water content
36		soil moisture (30 cm)   volumetric water content
37		soil moisture (40 cm)	volumetric water content
38		soil moisture (60 cm)   volumetric water content
39		soil moisture (100 cm)	volumetric water content

FIELD NOTES:

2002 June 26, grass around the tower was mowed.  Danny used a weed eater 
to make grass immediately around the tower the same.