FILLED_MET: Micromet data (30 min intervals) for component flux modeling at the 
ChEAS observation stations in northern WI.

Prepared by Bruce Cook, Univ of Minnesota (18 Oct 2002); (612)624-9796/bcook@essc.psu.edu

Gap filling: 	Numerical flags indicate filling heirarchy.

		Missing micromet data was filled by linear functions with observations 
		from nearby towers and micromet stations (see flags below).

File names:  	LOCYEAR_filled (e.g., LCRK1999)

    		LOC = site location:	

                  asp  = young aspen near wcreek; 
                  ald  = alder wetland near wlef; 
                  lc   = Lost Creek flux tower; 
                  mix  = mixed upland forest near wlef; 
                  red  = red pine upland near wlef; 
                  wc   = Willow Creek flux tower; 
                  wlef = WLEF flux tower; 
                  ws   = Willow Springs micromet station)

   	        YEAR = 4 digit year

COLUMN	DESCRIPTION

  0     Year

  1	Julian day

  2	Fractional hour (indicates start of measurement interval), Local Standard Time

  3     Incoming PAR, umol/(m^2,s)

  4     Incoming PAR flag (filled in the following order; no functional fits):

	0=WC
  	1=LC
	2=WLEF 
	3=WS (clearcut treatment) 
	4=WC monthly diurnal average (1998-2001)

  5     Soil temperature, 5cm depth, deg C (small towers, WS only)
        (Note. These data have been used to fill nighttime NEE/ecosystem respiration)

  6     Soil temperature, 5cm depth, data filling flag

	0=observation
	1=MIX, 10cm

  7     Soil temperature, 10cm depth, deg C
        (Note. These data have been used to model belowgound carbon efflux)

  8     Soil temperature, 10cm depth, data filling flag

	0=observation
	1=MIX, 10cm

  9     Soil moisture content, 10cm depth, m^3 H2O/m^3 soil (upland sites only, excluding WLEF)

 10     Soil moisture content, 10cm depth, flags

	Northern sites (MIX, RED)	Southern sites (ASP, WC, WS)
	0=observation			0=observation
	1=MIX, 0 to 15cm		1=WS, 0 to 30cm

 11	Surface water depth, cm below surface (wetland sites only)

 12	Surface water depth, flags

	0=observation
	1=spline function (only after installation)

 13	Stem temperature, north, deg C 
        (provided for tower sites only; data for other sites available by request)

 14	Stem temperature, north, flags

	LC		WC
	0=observation	0=observation
	1=ALD		1=MIX
	2=ASP		2=RED
	3=MIX		3=ASP
	4=RED		4=ALD
	5=diurnal avg	5=diurnal avg

 15	Stem temperature, south, deg C
        (provided for small towers only; data for other sites available by request)

 16	Stem temperature, south, flags

	LC		WC
	0=observation	0=observation
	1=ALD		1=MIX
	2=ASP		2=RED
	3=MIX		3=ASP
	4=RED		4=ALD
	5=diurnal avg	5=diurnal avg

 17	Air temperature, mid-canopy, deg C 
        (alder and tower sites only; other air temps available by request)

 18	Air temperature, mid-canopy, flags

	LC (1.2m)	WC (18.3m)	WLEF (30m)	
	0=observation	0=observation 	0=observation	
	1=LC, 5.5m	1=WC, 24m	1=WC, 30m
	2=ALD, 1.5m	1=WLEF, 30m	2=WC, 24m
	3=ASP, 1.5m	2=LC, 10m	3=LC, 10m
	4=RED, 1.5m	3=LC, 5.5m	4=LC, 5.5m
	5=MIX, 1.5m	4=MIX, 1.5m	5=MIX, 1.5m
 	6=WLEF, 30m	5=ASP, 1.5m	6=ASP, 1.5m
	7=WC, 30m	6=RED, 1.5m	7=RED, 1.5m
	8=WC, 18.3m	8=ALD, 1.5m	8=ALD, 1.5m
	9=diurnal avg	9=diurnal avg	9=diurnal avg

 19	Vapor pressure deficit, above-canopy, kPa 
	(tower sites only; VPD and humidity data for other sites available by request)

 20	Vapor pressure deficit, above-canopy, flags
	LC (10m)	WC (30m)	WLEF (30m)
	0=observation	0=observation	0=observation
	1=ALD, 1.5m	1=WLEF, 30m	1=WC, 30m
	2=ASP, 1.5m	2=LC, 10m	2=LC, 10m
	3=RED, 1.5m	3=MIX, 1.5m	3=MIX, 1.5m
	4=MIX, 1.5m	4=ASP, 1.5m	4=ASP, 1.5m
	5=WLEF, 30m	5=RED, 1.5m	5=RED, 1.5m
	6=WC, 30m	6=ALD, 1.5m	6=ALD, 1.5m
	7=diurnal avg	7=diurnal avg	7=diurnal avg