-- Niwot Ridge Ameriflux 5-minute Data -- MST Time Period: 2008 10/01 00:02:30 - 2008 10/31 23:57:30, JD 275.002-305.998 (MST) UTC Time Period: 2008 10/01 07:02:30 - 2008 11/01 06:57:30, JD 275.293-306.290 (UTC) File Name: cu_5min_2008_10.dat File Created by: Sean Burns (sean.burns@colorado.edu) File Created for: CU Ameriflux Web Site (http://urquell.colorado.edu/data_ameriflux/) Date: 05-Jun-2009 -------- Data Version: 1.0 notes: * for more info go to: http://urquell.colorado.edu/data_ameriflux/ * missing data are filled with "NaN" * No tilt correction to any sonic data * No gap-filling of missing data * sonic boom angles: 21.5m csat : 193 Mag N = 203 deg from True North 12.5m atik : 10 Mag N = 20 deg from True North 9.3m ati2Y : -10 Mag N approx 0 deg from True North 5.7m csat : 180 Mag N = 190 deg from True North 2.56m csat : 186 Mag N = 196 deg from True North * An empirical correction has been applied to the new TRH sensor data. (s_Ta_0460cm, s_RH_0460cm, s_Ta_1040cm, s_RH_1040cm) * WDs of prop-vanes and 2-d ati sonic need to be double-checked * some spikes and high-freq noise have been observed in the 2.56m and 21.5m csats. In Jan/Feb 2008 these units were sent back to campbell for re-calibration. (the effect of the spikes on the 5-min statistics is not known at this time). * An empirical correction has been applied to the Ta_8m data. The correction is of the form: Ta = Ta_raw + T_corr, where T_corr=0.25 degC - The correction was determined based on (1) temperature comparisons with the oregon state prt in Sept 2005, (2) comparisons with unaspirated thermocouples, (3) comparisons with other temperature measurements at high WS. * An empirical correction has been applied to the P_bar_1200cm data. The correction is of the form: P_bar_1200cm = P_bar_1200cm_raw + P_corr, where P_corr= -0.763 kPa - The correction was determined based on (1) pressure comparisons with the oregon state roving system in July 2006, (2) comparisons with other barometric pressure sensors during CME04. * Handar wind directions are limited in accuracy (need to be computed from 1-hz data) * Unless specified otherwise, Rppfd (ie, PAR) data are measured with a LI-COR LI-190sa sensor. -------- Data Summary (missing or problematic data set to NaN): Parameter Name | No Samples No Bad Sample Percentage Min Max Mean Std Dev. 008. P_0200cm | 8928 110 1.23 % 68.64 71.73 70.72 0.55 009. P_0460cm | 8928 110 1.23 % 68.62 71.71 70.70 0.55 010. P_0800cm | 8928 110 1.23 % 68.59 71.68 70.67 0.55 011. P_1040cm | 8928 110 1.23 % 68.56 71.66 70.65 0.55 012. P_2150cm | 8928 110 1.23 % 68.46 71.56 70.54 0.55 013. P_bar_1200cm | 8928 110 1.23 % 68.55 71.64 70.63 0.55 014. P_bar_1200cm_raw | 8928 110 1.23 % 69.31 72.41 71.39 0.55 015. RH_0200cm | 8928 110 1.23 % 11.70 97.90 57.84 22.86 016. RH_0460cm | 8928 111 1.24 % 9.66 100.00 56.21 24.41 017. RH_0460cm_raw | 8928 111 1.24 % 12.01 97.98 54.67 22.66 018. RH_0800cm | 8928 111 1.24 % 8.73 97.90 50.94 24.71 019. RH_1040cm | 8928 110 1.23 % 8.66 100.00 51.58 24.45 020. RH_1040cm_raw | 8928 110 1.23 % 9.06 100.72 51.98 24.45 021. RH_2150cm | 8928 110 1.23 % 8.28 100.00 47.95 23.91 022. Rlw_in_2550cm_KZ_cnr1 | 8928 18 0.20 % 147.46 347.90 236.30 38.77 023. Rlw_out_2550cm_KZ_cnr1 | 8928 18 0.20 % 266.78 390.67 327.52 24.22 024. Rnet_0200cm_REBS | 8928 20 0.22 % -23.45 434.26 1.90 28.22 025. Rnet_0200cm_REBS_mV | 8928 20 0.22 % -2.06 44.32 0.29 2.84 026. Rnet_2550cm_KZ_cnr1 | 8928 18 0.20 % -151.39 796.00 55.03 216.84 027. Rnet_2550cm_REBS | 8928 18 0.20 % -118.61 805.68 71.52 207.12 028. Rpile_in_2550cm_KZ_cnr1 | 8928 18 0.20 % -164.76 5.54 -96.25 42.88 029. Rpile_out_2550cm_KZ_cnr1 | 8928 18 0.20 % -29.09 8.89 -5.03 5.49 030. Rppfd2_in_2550cm_mV | 8928 18 0.20 % 5.28 8.83 7.69 0.58 031. Rppfd_in_0200cm | 8928 30 0.34 % -7.92 809.15 10.30 32.00 032. Rppfd_in_2550cm | 8928 18 0.20 % -0.58 1813.29 307.18 454.85 033. Rppfd_in_2550cm_KZ | 8928 8928 100.00 % NaN NaN NaN NaN 034. Rppfd_out_0200cm | 8928 20 0.22 % -3.81 45.73 2.97 6.48 035. Rppfd_out_2550cm | 8928 18 0.20 % -0.59 205.41 17.91 27.72 036. Rsw_in_2550cm_KZ_cnr1 | 8928 21 0.24 % -7.98 979.04 167.05 252.51 037. Rsw_out_2550cm_KZ_cnr1 | 8928 18 0.20 % -3.83 133.53 20.74 26.51 038. Ta_0200cm | 8928 114 1.28 % -10.22 15.08 2.48 5.06 039. Ta_0460cm | 8928 114 1.28 % -17.46 15.06 2.82 5.24 040. Ta_0460cm_raw | 8928 114 1.28 % -17.67 14.88 2.59 5.27 041. Ta_0800cm | 8928 114 1.28 % -10.78 14.99 3.02 5.30 042. Ta_0800cm_raw | 8928 114 1.28 % -11.03 14.74 2.77 5.30 043. Ta_1040cm | 8928 114 1.28 % -10.73 23.40 3.33 5.30 044. Ta_1040cm_raw | 8928 114 1.28 % -10.75 23.42 3.34 5.35 045. Ta_2150cm | 8928 114 1.28 % -10.31 13.75 3.61 5.00 046. Tcase_2550cm_KZ_cnr1 | 8928 18 0.20 % 261.69 289.18 276.60 5.34 047. Tsoil_5cm_cs107 | 8928 20 0.22 % 0.71 7.56 2.28 1.56 048. Ttc_0040cm | 8928 21 0.24 % -10.39 15.68 1.97 4.86 049. Ttc_0091cm | 8928 21 0.24 % -10.46 16.10 2.12 4.96 050. Ttc_0138cm | 8928 21 0.24 % -10.34 15.41 2.25 5.00 051. Ttc_0200cm | 8928 21 0.24 % -10.53 15.44 2.36 5.09 052. Ttc_0396cm | 8928 21 0.24 % -10.56 15.39 2.64 5.23 053. Ttc_0592cm | 8928 21 0.24 % -10.84 15.92 2.80 5.36 054. Ttc_0806cm | 8928 21 0.24 % -11.13 17.13 3.15 5.49 055. Ttc_0993cm | 8928 21 0.24 % -11.38 17.46 3.42 5.55 056. Ttc_1298cm | 8928 21 0.24 % -11.07 15.88 3.60 5.30 057. Ttc_1650cm | 8928 21 0.24 % -10.92 15.16 3.70 5.15 058. Ttc_1950cm | 8928 21 0.24 % -10.80 14.85 3.75 5.09 059. Ttc_20cm | 8928 8821 98.80 % 2.06 9.48 3.91 1.93 060. Ttc_2198cm | 8928 21 0.24 % -10.72 15.03 3.84 5.10 061. Ttc_ref | 8928 21 0.24 % -9.51 16.19 3.28 5.32 062. az1_L | 8928 2187 24.50 % -7531.63 2520.29 2512.96 184.42 063. az1_X | 8928 2187 24.50 % -335.59 2531.47 2517.47 64.78 064. az2_L | 8928 22 0.25 % -7260.13 2466.03 2457.09 103.23 065. az2_X | 8928 22 0.25 % 727.82 2499.85 2482.42 21.92 066. co2_li7500_1250cm_mmol | 8928 260 2.91 % 5.04 17.77 10.88 0.51 067. co2b_co2b_co2b_co2b_ec | 8928 6817 76.36 % 0.00 7272.71 13.91 167.85 068. co2b_co2b_co2b_ec | 8928 6816 76.34 % -5220.54 331.21 -2.05 113.93 069. co2b_co2b_ec | 8928 6768 75.81 % 0.00 1408.84 19.33 127.11 070. co2b_ec | 8928 6790 76.05 % -5848.47 150.25 104.40 130.46 071. h2o_krypton_mV | 8928 603 6.75 % 30.23 487.41 170.64 77.11 072. h2o_li7500_1250cm_mmol | 8928 428 4.79 % 51.34 699.55 288.43 71.22 073. h2o_soil_hori_5cm_ucb_cs616 | 8928 20 0.22 % 0.06 0.12 0.08 0.02 074. sh_0200cm | 8928 114 1.28 % 1.12 7.27 3.58 1.11 075. sh_0460cm | 8928 115 1.29 % 0.97 7.35 3.54 1.19 076. sh_0800cm | 8928 115 1.29 % 0.77 6.92 3.21 1.17 077. sh_1040cm | 8928 114 1.28 % 0.80 6.92 3.34 1.18 078. sh_2150cm | 8928 114 1.28 % 0.72 6.78 3.17 1.16 079. soil_water_pot_cs257 | 8928 20 0.22 % 21.01 238.74 83.46 46.57 080. soil_water_pot_lin_cs257 | 8928 20 0.22 % 36.84 131.11 87.01 25.06 081. tc_ati2Y_0930cm | 8928 366 4.10 % -9.96 15.44 4.17 5.00 082. tc_atik_1250cm | 8928 618 6.92 % -9.91 14.67 4.66 4.82 083. tc_csat_0256cm | 8928 593 6.64 % -10.29 15.92 3.22 5.06 084. tc_csat_0570cm | 8928 6393 71.61 % -2.30 16.59 6.25 4.10 085. tc_csat_2150cm | 8928 590 6.61 % -9.94 13.77 4.44 4.69 086. theta_0200cm | 8928 114 1.28 % 290.21 318.42 304.28 5.50 087. theta_0460cm | 8928 115 1.29 % 290.11 318.82 304.69 5.68 088. theta_0800cm | 8928 115 1.29 % 289.92 318.86 304.95 5.72 089. theta_1040cm | 8928 114 1.28 % 289.81 330.27 305.32 5.71 090. theta_2150cm | 8928 114 1.28 % 290.28 318.05 305.75 5.35 091. u_ati2Y_0930cm | 8928 362 4.05 % -7.40 4.02 0.68 0.81 092. u_atik_1250cm | 8928 618 6.92 % -2.39 8.16 1.67 1.76 093. u_csat_0256cm | 8928 593 6.64 % -1.98 1.64 0.19 0.27 094. u_csat_0570cm | 8928 6393 71.61 % -0.99 2.49 0.18 0.28 095. u_csat_2150cm | 8928 590 6.61 % -4.05 16.91 3.36 3.52 096. u_raw_ati2Y_0930cm | 8928 362 4.05 % -3.56 12.65 0.05 0.37 097. u_raw_atik_1250cm | 8928 618 6.92 % -3.69 4.01 -0.33 0.74 098. u_raw_csat_0256cm | 8928 593 6.64 % -2.42 1.26 0.01 0.27 099. u_raw_csat_0570cm | 8928 6393 71.61 % -1.90 1.70 0.08 0.21 100. u_raw_csat_2150cm | 8928 590 6.61 % -5.55 5.56 0.38 1.44 101. u_u_atik_1250cm | 8928 618 6.92 % 0.01 74.42 2.58 3.64 102. u_u_csat_0256cm | 8928 593 6.64 % 0.00 4.10 0.28 0.42 103. u_u_csat_0570cm | 8928 6393 71.61 % 0.00 5.77 0.23 0.41 104. u_u_csat_2150cm | 8928 590 6.61 % 0.00 26.19 3.28 4.02 105. u_v_atik_1250cm | 8928 618 6.92 % -3.24 2.69 0.00 0.45 106. u_v_csat_0256cm | 8928 593 6.64 % -7.14 5.22 -0.04 0.45 107. u_v_csat_0570cm | 8928 6393 71.61 % -1.78 1.79 0.01 0.13 108. u_v_csat_2150cm | 8928 590 6.61 % -7.10 8.25 0.02 0.78 109. u_w_atik_1250cm | 8928 618 6.92 % -8.00 0.86 -0.90 1.41 110. u_w_csat_0256cm | 8928 593 6.64 % -0.43 2.36 0.02 0.13 111. u_w_csat_0570cm | 8928 6393 71.61 % -1.10 0.48 -0.01 0.06 112. u_w_csat_2150cm | 8928 590 6.61 % -3.85 1.42 -0.19 0.43 113. ustar_csat_2150cm | 8928 590 6.61 % 0.01 3.52 0.80 0.63 114. v_ati2Y_0930cm | 8928 362 4.05 % -12.65 3.56 -0.05 0.37 115. v_atik_1250cm | 8928 618 6.92 % -4.14 3.83 -0.25 0.90 116. v_csat_0256cm | 8928 593 6.64 % -2.52 1.39 -0.01 0.27 117. v_csat_0570cm | 8928 6393 71.61 % -1.88 1.37 0.05 0.21 118. v_csat_2150cm | 8928 590 6.61 % -8.67 5.35 -1.01 2.02 119. v_raw_ati2Y_0930cm | 8928 360 4.03 % -7.40 9.59 0.68 0.82 120. v_raw_atik_1250cm | 8928 618 6.92 % -2.33 8.06 1.65 1.84 121. v_raw_csat_0256cm | 8928 593 6.64 % -1.57 1.83 -0.18 0.27 122. v_raw_csat_0570cm | 8928 6393 71.61 % -2.48 1.21 -0.17 0.28 123. v_raw_csat_2150cm | 8928 590 6.61 % -17.73 4.31 -3.49 3.79 124. v_v_atik_1250cm | 8928 618 6.92 % 0.00 29.99 1.63 2.00 125. v_v_csat_0256cm | 8928 593 6.64 % 0.00 13.20 0.35 0.82 126. v_v_csat_0570cm | 8928 6393 71.61 % 0.00 3.56 0.17 0.37 127. v_v_csat_2150cm | 8928 590 6.61 % 0.00 43.17 4.28 5.64 128. v_w_atik_1250cm | 8928 618 6.92 % -1.26 3.10 0.20 0.44 129. v_w_csat_0256cm | 8928 593 6.64 % -4.24 3.05 -0.03 0.26 130. v_w_csat_0570cm | 8928 6393 71.61 % -0.79 0.78 0.01 0.07 131. v_w_csat_2150cm | 8928 590 6.61 % -1.47 12.41 0.95 1.52 132. w_raw_atik_1250cm | 8928 618 6.92 % -1.28 0.76 -0.21 0.21 133. w_raw_csat_0256cm | 8928 593 6.64 % -0.53 0.70 -0.01 0.06 134. w_raw_csat_0570cm | 8928 6393 71.61 % -0.37 0.49 0.02 0.07 135. w_raw_csat_2150cm | 8928 590 6.61 % -1.78 2.03 -0.30 0.34 136. w_tc_atik_1250cm | 8928 618 6.92 % -0.75 0.87 0.03 0.18 137. w_tc_csat_0256cm | 8928 593 6.64 % -0.80 1.12 -0.00 0.04 138. w_tc_csat_0570cm | 8928 6393 71.61 % -0.14 0.53 0.01 0.04 139. w_tc_csat_2150cm | 8928 590 6.61 % -0.60 1.10 0.03 0.17 140. w_w_atik_1250cm | 8928 618 6.92 % 0.00 9.32 1.10 1.51 141. w_w_csat_0256cm | 8928 593 6.64 % 0.00 1.40 0.04 0.10 142. w_w_csat_0570cm | 8928 6393 71.61 % 0.00 0.75 0.06 0.08 143. w_w_csat_2150cm | 8928 590 6.61 % 0.00 13.96 1.57 2.14 144. wd_ati2Y_0930cm | 8928 362 4.05 % 0.02 359.35 241.22 69.15 145. wd_atik_1250cm | 8928 618 6.92 % 0.41 359.95 246.35 69.29 146. wd_csat_0256cm | 8928 593 6.64 % 0.00 359.97 223.88 87.58 147. wd_csat_0570cm | 8928 6393 71.61 % 0.31 359.47 230.24 71.66 148. wd_csat_2150cm | 8928 590 6.61 % 0.09 359.75 249.11 75.62 149. wd_handar_0161cm | 8928 20 0.22 % 53.11 336.04 210.81 46.29 150. wd_rmy_1500cm | 8928 186 2.08 % 0.03 359.81 243.09 68.18 151. wd_rmy_2550cm | 8928 143 1.60 % 0.10 359.67 248.44 74.94 152. wsV_ati2Y_0930cm | 8928 362 4.05 % 0.01 12.71 0.88 0.69 153. wsV_atik_1250cm | 8928 618 6.92 % 0.00 8.24 2.08 1.55 154. wsV_csat_0256cm | 8928 593 6.64 % 0.01 2.66 0.35 0.24 155. wsV_csat_0570cm | 8928 6393 71.61 % 0.00 2.49 0.30 0.26 156. wsV_csat_2150cm | 8928 590 6.61 % 0.01 17.79 4.32 3.18 157. ws_handar_0161cm | 8928 20 0.22 % 0.04 2.15 0.57 0.30 158. ws_rmy_1500cm | 8928 186 2.08 % 0.10 13.53 3.15 2.36 159. ws_rmy_2550cm | 8928 143 1.60 % 0.10 20.33 4.70 3.64 --------