File: Okfill.dat Start Date: - 96/7/18/0:15 hrs End Date: - 99/01/01/00:15 hrs "Rows * Columns" - 43057 x 37 (plus 2 header rows) Col - Variable - Description 1 - YYY - Year 2 - MM - Month 3 - DD - Day 4 - HH - Hour (local=GMT-6) 5 - MN - Minute 6 - JJJ - Day number 7 - HH.h - Hour.decimal 8 - JJJ.j - Day.decimal 9 - DRVRTIME - Continuous time (GMT) from 95/1/1 - 10 - T-SWDOWN - Tall-grass - Swave (W/m2) 11 - T-PARIN - Tall-grass - PAR (W/m2) 12 - T-ZLWD - Tall-grass - Lwave (W/m2) 13 - T-RNETM - Tall-grass - Rnet (W/m2) 14 - T-EM - Tall-grass - Vapor pressure (mb) @ 4.5 meters 15 - T-TM - Tall-grass - Air temperature (C) @ 4.5 meters 16 - T-UM - Tall-grass - Wind speed (m/s) @ 4.5 meters 17 - T-TPREC - Tall-grass - Total precip (mm) 18 - T-PCO2M - Tall-grass - [CO2] (Pa) 19 - T-Patm - Tall-grass - Air pressure (mb) 20 - T-Ts_soil - Tall-grass - Soil T (shallow) (C) 21 - T-Td_soil - Tall-grass - Soil T (deep) (C) 22 - T-Rh - Tall-grass - Relative humidity (%) @ 4.5 meters 23 - T-Tdew - Tall-grass - Dew point temperature (K) @ 4.5 meters 24 - W-SWDOWN - Wheat - Swave (W/m2) 25 - W-PARIN - Wheat - PAR (W/m2) 26 - W-ZLWD - Wheat - Lwave (W/m2) 27 - W-RNETM - Wheat - Rnet (W/m2) 28 - W-EM - Wheat - Vapor pressure (mb) @ 4.5 meters 29 - W-TM - Wheat - Air temperature (C) @ 4.5 meters 30 - W-UM - Wheat - Wind speed (m/s) @ 4.5 meters 31 - W-TPREC - Wheat - Total precip (mm) 32 - W-PCO2M - Wheat - [CO2] (Pa) 33 - W-Patm - Wheat - Air pressure (mb) 34 - W-Ts_soil - Wheat - Soil T (shallow) (C) 35 - W-Td_soil - Wheat - Soil T (deep) C 36 - W-Rh - Wheat - Relative humidity (%) @ 4.5 meters 37 - W-Tdew - Wheat - Dew point temperature (K) @ 4.5 meters Oklahoma Hole-Filling Routines Program steps through rows of data, looking for missing data (null flag=-9999). Missing data filled using one of 7 options, in order of preference: 1. Linear temporal interpolation (data gap < INTERPMAX data points) 2. Using Source 1 with linear adjustment 3. Using Source 2 with linear adjustment 4. Using Source 3 with linear adjustment 5. Using Source 4 with linear adjustment 6. Average during previous/following days, same year 7. Average during previous/following days, same and other years Other flags: -1. No fill routine implemented for this data column -9. Insufficient data available for options 1-7 For options 2-5, the Source data are picked based on the correlation between target and source in all available coincident measurements and uses linear adjustment to correct for systematic differences. Root mean square errors for these estimates are in rmse.out. These are summarized for each filled column and Source in RMSstats.out. Other regression statistics are in slope.out, intercept.out etc. For options 6-7, deviations and averages are computed at same time of day over +/- AVDAYS (+/- SPREAD hours). Sufficient (MINCOUNT) data must be available to estimate average (av deviation), and variability of average must be less than a threshold (sd/mean