Curtice Walter Berger Cropland, Ohio, USA

Name value
Principal investigator Jiquan Chen
Site name Curtice Walter Berger Cropland, Ohio, USA
IGBP vegetation type Croplands
Latitude 41.6285
Longitude -83.3471
Elevation 180
crdate 02OCT2015


 
Curtice Walter Berger Cropland, Ohio, USA
input files and their date ranges

Obs OrigFile mindate maxdate nrec
1 AMF_USCRT_2011_L1_WG_V003.csv 01/01/2011 12/31/2011 17520
2 AMF_USCRT_2012_L1_WG_V003.csv 01/01/2012 12/31/2012 17568
3 AMF_USCRT_2013_L1_WG_V003.csv 01/01/2013 12/31/2013 17520


 
Curtice Walter Berger Cropland, Ohio, USA
variable names and original descriptions

VarSource=AMF_USCRT_2011_L1_WG_V003.csv - 2013, BADM-Instrument_Ops-US-CRT-20150505_revCMP_2.xlsx

Obs col Variable Origdesc
1 5 CO2 CO2 (umol mol-1), CO2 concentration at 2 m
2 6 H2O H2O (mmol mol-1), Water vapor concentration at 2 m
3 7 FC FC (umol/m2/s), CO2 flux at 2 m
4 8 NEE NEE (umol/m2/s), Net ecosystem exchange
5 9 CH4 CH4 (nmol mol-1), CH4 (Methane) concentration at 2 m
6 10 FCH4 FCH4 (nmol/m2/s), CH4 (Methane) flux at 2 m
7 11 H H (W/m2), Sensible heat flux at 2 m
8 12 LE LE (W/m2), Latent heat flux at 2m
9 13 FG G_1_1_A (W/m2), Soil heat flux, 0.1 m below ground
10 14 WD WD (deg), Wind direction at 2 m
11 15 WS WS (m/s), Wind speed at 2 m
12 16 UST USTAR (m/s), Friction velocity at 2 m
13 17 ZL ZL (unitless), Atmospheric stability parameter at 2 m
14 18 L MO_LENGTH (m), Monin-Obukhov length at 2 m
15 19 Wstd W_SIGMA (m/s), Standard deviation of W-velocity at 2 m
16 20 Vstd V_SIGMA (m/s), Standard deviation of V-velocity at 2 m
17 21 PRESS PA (kPa), Atmospheric pressure at 0.5 m
18 22 RH RH_1_1_1 (%), Relative humidity at 2 m
19 23 TA TA_1_1_1 (deg C), Air temperature at 2 m
20 24 TS TS_1_1_1 (deg C), Soil temperature at 0.1 m below ground
21 25 TS__2 TS_1_1_2 (deg C), Soil temperature at 0.1 m below ground
22 26 WATERtable WATER_TABLE_DEPTH (cm)
23 27 SWC SWC (%), Soil water content at 0-0.3 m below ground
24 28 Rn NETRAD (W/m2), Net radiation at 2 m
25 29 PAR PPFD_IN (umol/m2/s), Incoming photosynthetically active radiation at 2.5 m
26 30 Rg SW_IN (W/m2), Incoming Shortwave radiation at 2 m
27 31 RgOut SW_OUT (W/m2), Outgoing Shortwave radiation at 2 m
28 32 Rgl LW_IN (W/m2), Incoming longwave radiation at 2 m
29 33 RglOut LW_OUT (W/m2), Outgoing longwave radiation at 2 m
30 34 PREC P (mm), Precipitation at 2.5 m


 
Curtice Walter Berger Cropland, Ohio, USA
variable edits

Obs Reset
1 * CURTICE_WALTER reset l to missing if l < -10000 or l > 10000 m;
2 * CURTICE_WALTER reset par to missing if abs(par) > 10 umol/m2/s when solar_elevation < -5 degree;
3 * CURTICE_WALTER reset par to missing if par < -10 umol/m2/s;
4 * CURTICE_WALTER reset par to missing if par < 10 umol/m2/s when solar_elevation > 20 degree;
5 * CURTICE_WALTER reset rg to missing if abs(rg) > 5 W/m2 when solar_elevation < -5 degree;
6 * CURTICE_WALTER reset rg to missing if rg < -5 or rg > 1200 W/m2;
7 * CURTICE_WALTER reset rg to missing if rg < 5 W/m2 when solar_elevation > 20 degree;
8 * CURTICE_WALTER reset rgout to missing if abs(rgout) > 5 W/m2 when solar_elevation < -5 degree;
9 * CURTICE_WALTER reset rgout to missing if rgout < -5 or rgout > 800 W/m2;
10 * CURTICE_WALTER reset rgout to missing if rgout < 5 W/m2 when solar_elevation > 20 degree;


 
Curtice Walter Berger Cropland, Ohio, USA
number of records reset to missing or other values

Obs variable nreset
1 l 52
2 par 6
3 rg 16
4 rgout 369


 
Curtice Walter Berger Cropland, Ohio, USA
variable or unit conversions

Obs cline
1 * CURTICE_WALTER convert ch4 from nmol/mol to umol/mol;
2 ch4= ch4/1000;
3 * CURTICE_WALTER convert watertable to -watertable, sign convention compliance;
4 if (watertable ne .) then do; watertable=0-watertable; end;


 
Curtice Walter Berger Cropland, Ohio, USA
calculated or derived variables

Obs cline
1 * CURTICE_WALTER calculate fh2o from le and ta;
2 fh2o = le/18/(1.91846*((ta+273.15)/(ta+273.15-33.91))*((ta+273.15)/(ta+273.15-33.91)));
3 * CURTICE_WALTER calculate vpd from ta and rh;
4 vpd = 0.61121*exp(17.502*ta/(240.97+ta))*(1.-rh/100.);
5 * CURTICE_WALTER calculate preccum;
6 preccum = ifn(first.year, prec, sum(preccum, prec));


 
Curtice Walter Berger Cropland, Ohio, USA
variable statistics for L2 data

Site=Curtice Walter Berger Cropland

Obs Variable MIN MEAN MAX N NMISS TOTAL
1 CH4 1.85 2.099 2.49 7955 44653 52608
2 CO2 298.34 388.469 515.75 28322 24286 52608
3 FC -74.27 -1.477 45.11 30300 22308 52608
4 FCH4 -37.03 7.956 407.75 7929 44679 52608
5 FG -83.42 1.838 255.97 52224 384 52608
6 FH2O -5.15 1.745 18.51 30480 22128 52608
7 H -122.78 24.809 446.52 36682 15926 52608
8 H2O 0.90 12.168 35.87 28844 23764 52608
9 L -9950.00 32.382 9950.00 36950 15658 52608
10 LE -225.84 77.078 807.88 30480 22128 52608
11 NEE -74.27 -1.477 45.11 30300 22308 52608
12 PAR 0.00 344.881 2416.86 52597 11 52608
13 PREC 0.00 0.046 28.96 52603 5 52608
14 PRECcum 0.00 386.369 1041.39 52608 0 52608
15 PRESS 96.41 99.832 102.28 37001 15607 52608
16 RH 20.02 73.493 100.00 51680 928 52608
17 Rg 0.00 158.191 1022.32 52575 33 52608
18 RgOut 0.00 31.706 521.77 52080 528 52608
19 Rgl 195.27 348.813 507.77 52220 388 52608
20 RglOut 222.23 373.803 580.76 52220 388 52608
21 Rn -72.51 100.527 816.58 52232 376 52608
22 SWC 25.82 50.150 66.32 52232 376 52608
23 TA -21.27 10.849 38.01 52603 5 52608
24 TS -2.50 11.234 32.56 52223 385 52608
25 TS__2 -0.85 11.872 32.07 50245 2363 52608
26 UST 0.01 0.272 0.97 37002 15606 52608
27 VPD 0.00 0.478 4.33 51680 928 52608
28 Vstd 0.07 0.771 4.53 37002 15606 52608
29 WATERtable 17.10 115.345 272.84 52214 394 52608
30 WD 0.01 208.172 360.00 37002 15606 52608
31 WS 0.10 3.182 13.95 37002 15606 52608
32 Wstd 0.01 0.335 1.17 37002 15606 52608
33 ZL -62.68 -0.066 11.79 37002 15606 52608


 
Curtice Walter Berger Cropland, Ohio, USA
AmeriFlux L2 variable names and descriptions

Obs name label
1 BIOME BIOME class
2 CH4 CH4 (Methane) concentration at 2m (umol/mol)
3 CO2 CO2 concentration at 2m (umol/mol)
4 Dataname Dataset name
5 Day Day
6 DirName Directory Name
7 Ebalance Energy balance [[LE+H+FG]/Rn]
8 Elevation Elevation (masl)
9 FC CO2 flux at 2m (umol/m2/s)
10 FCH4 CH4 (Methane) flux at 2m (nmol/m2/s)
11 FG Soil heat flux at 10cm (W/m2)
12 FH2O Water vapor flux at 2m (mmol/m2/s)
13 FluxnetID Fluxnet name
14 GMT Greenwich mean time
15 GMT_date GMT date
16 GMT_day GMT day
17 GMT_hour GMT hour
18 GMT_jd GMT Day of year
19 GMT_min GMT minute
20 GMT_month GMT month
21 GMT_year GMT year
22 H Sensible heat flux at 2m (W/m2)
23 H2O Water vapor concentration at 2m (mmol/mol)
24 Hour Hour
25 IGBP IGBP vegetation type
26 JD Day of year
27 L Monin-Obukhov length (m)
28 LE Latent heat flux at 2m (W/m2)
29 Latitude Latitude (decimal degrees)
30 Longitude Longitude (decimal degrees)
31 MODIS MODIS Land Cover Type 5
32 Minute Minute
33 Month Month
34 NEE Net ecosystem exchange (umol/m2/s)
35 OrigFile Originating filename
36 PAR Incoming photosynthetically active radiation at 2.5m (umol/m2/s)
37 PI Principal investigator
38 PIemail PI email
39 PREC Precipitation at 2.5m (mm)
40 PRECcum Precipitation annual cumulative (mm)
41 PRESS Barometric pressure at 0.5m (kPa)
42 RH Relative humidity of air at 2m (%)
43 Rg Incoming global solar radiation at 2m (W/m2)
44 RgOut Outgoing global solar radiation at 2m (W/m2)
45 Rgl Incoming long wave radiation at 2m (W/m2)
46 RglOut Outgoing long wave radiation at 2m (W/m2)
47 Rn Net radiation at 2m (W/m2)
48 SASDTime DateTime
49 SASDate Date
50 SWC Soil moisture volumetric content at 0-30cm (%)
51 Site Site
52 SiteDesc Site description
53 SiteName Site name
54 TA Air temperature at 2m (deg C)
55 TS Soil temperature at 10cm (deg C)
56 TS__2 2nd Soil temperature at 10cm (deg C)
57 UST Friction velocity at 2m (m/s)
58 VPD Vapor pressure deficit at 2m (kPa)
59 Vstd Standard deviation of V-velocity at 2m (m/s)
60 WATERtable Water table (cm)
61 WD Wind direction at 2m (deg)
62 WS Wind speed at 2m (m/s)
63 Wstd Standard deviation of W-velocity at 2m (m/s)
64 Year Year
65 ZL Atmospheric stability parameter [[Z-d]/L] (unitless)


 
Curtice Walter Berger Cropland, Ohio, USA
Ameriflux L2 variables mapped into standardized files
with gaps

Obs rec
1 /* filename curtice_walter.sas */
2 /* Modis name uscrt */
3 CO2top = co2; * co2 above the canopy;
4 CO2height = 2; * co2 height = 2m;
5 CO2 = co2;
6 FC = fc; * fc above the canopy;
7 if fc ne . then GAP = 0; else GAP = -1;
8 FG = fg; * soil heat flux;
9 H = h; * sensible heat flux;
10 H2O = h2o; * h2o above the canopy;
11 LE = le; * latent heat flux;
12 NEE = nee; * nee;
13 PAR = par; * par above canopy;
14 PREC = prec; * prec;
15 PRESS = press; * press;
16 Rg = rg; * shortwave radiation;
17 RgOut = rgout; * rgout above canopy;
18 Rgl = rgl; * rgl above canopy;
19 RglOut = rglout; * rglout above canopy;
20 RH = rh; * relative humidity;
21 Rn = rn; * rn above canopy;
22 SWC1 = swc; * swc at first depth;
23 SWC2 = -6999.; * swc at second depth;
24 SWCdepth1 = 30; * 0-30 cm;
25 SWCdepth2 = -6999.;
26 TA = ta; * ta above the canopy;
27 TS1 = ts; * ts at first depth;
28 TS2 = -6999.; * ts at second depth;
29 TSdepth1 = 10; * first ts depth 10cm;
30 TSdepth2 = -6999.; * second ts depth value;
31 UST = ust; * ust;
32 VPD = vpd; * vpd;
33 WD = wd; * wd above the canopy;
34 WS = ws; * ws above the canopy;
35 ZL = zl;
36 APAR = -6999.; * apar;
37 APARpct = -6999.; * aparpct;
38 GPP = -6999.; * gpp;
39 PARdif = -6999; * pardif;
40 PARout = -6999; * parout;
41 RE = -6999.; * re;
42 Rgdif = -6999.; * diffuse radiation;
43 SFC = -6999.; * CO2 storage flux;
44 SH = -6999.; * sh;
45 SLE = -6999.; * sle;