Data Quality Reports for Session: 107911 User: cbain Completed: 09/24/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060106.15NIM/ECOR/M1 - Missing datanim30ecorM1.b1
D060530.1NIM/ECOR/M1 - Data Suspect for NW and East Wind Directionsnim30ecorM1.b1
D070215.5NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraftnim30ecorM1.b1


DQRID : D060106.15
Start DateStart TimeEnd DateEnd Time
12/11/2005083012/13/20051230
01/28/2006033001/30/20060800
08/25/2006193008/29/20060730
Subject:
NIM/ECOR/M1 - Missing data
DataStreams:nim30ecorM1.b1
Description:
Data are missing and unrecoverable.
Measurements:nim30ecorM1.b1:
  • lon(lon)
  • rotated covariance vt(cvar_rot_vt)
  • 0=real or 1=dummy value of lv(real_lv)
  • 0=real or 1=dummy value of rho(real_rho)
  • variance of v(var_rot_v)
  • h(h)
  • momentum flux (dynamic)(k)
  • rotated covariance vq(cvar_rot_vq)
  • variance of w(var_rot_w)
  • skewness of variable u(skew_u)
  • number of q samples removed due to spikes(n_spk_q)
  • variance of t(var_t)
  • wT covariance(cvar_wt)
  • covariance ut(cvar_ut)
  • kurtosis of variable q(kurt_q)
  • number of valid c samples(n_good_c)
  • variance of variable w(var_w)
  • skewness of variable t(skew_t)
  • rotated covariance wq(cvar_rot_wq)
  • kurtosis of variable v(kurt_v)
  • number of w samples removed due to spikes(n_spk_w)
  • latent heat of vaporization(lv)
  • rotated covariance uq(cvar_rot_uq)
  • kurtosis of variable u(kurt_u)
  • kurtosis of variable t(kurt_t)
  • skewness of variable v(skew_v)
  • number of t samples removed due to spikes(n_spk_t)
  • variance of variable u(var_u)
  • rotated covariance uw(cvar_rot_uw)
  • covariance of tq(cvar_tq)
  • skewness of variable w(skew_w)
  • Down-boom wind velocity (u)(mean_u)
  • average atmospheric pressure (IGRA internal sensor)(atm_pres)
  • number of bad or out of range c samples(n_bad_c)
  • rotated covariance ut(cvar_rot_ut)
  • kurtosis of variable w(kurt_w)
  • number of v samples removed due to spikes(n_spk_v)
  • rotated mean w(mean_rot_w)
  • skewness of variable q(skew_q)
  • Dummy altitude for Zeb(alt)
  • rotated mean v(mean_rot_v)
  • number of valid q samples(n_good_q)
  • number of c samples removed due to spikes(n_spk_c)
  • skewness of variable c(skew_c)
  • number of u samples removed due to spikes(n_spk_u)
  • 0=real or 1=dummy value of cp(real_cp)
  • number of valid t samples(n_good_t)
  • covariance vq(cvar_vq)
  • CO2 flux(fc)
  • number of samples with \IRGA hardware problem\ flag(n_bad_irga)
  • latent heat flux(lv_e)
  • condensation pressure(cp)
  • rotated covariance vw(cvar_rot_vw)
  • covariance wq(cvar_wq)
  • uw covariance(cvar_uw)
  • mean horizontal wind speed(mean_rot_u)
  • Friction velocity(ustar)
  • number of samples with IRGA optical path blocked flag(n_bad_irga_light)
  • mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
  • standard deviation of wind direction(std_wind_dir)
  • variance of u(var_rot_u)
  • vw covariance(cvar_vw)
  • number of samples with bad sonic status flag(n_bad_son_ic)
  • covariance of tc(cvar_tc)
  • mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
  • number of bad or out of range w samples(n_bad_w)
  • rotated covariance wt(cvar_rot_wt)
  • mean value of \spike\ u samples(mean_spk_u)
  • mean value of \spike\ v samples(mean_spk_v)
  • covariance uc(cvar_uc)
  • vector averaged wind direction(wind_dir)
  • variance of q(var_q)
  • standard deviation of wind elevation angle(std_elev)
  • mean value of \spike\ w samples(mean_spk_w)
  • vertical (elevation) wind angle(elev)
  • Time offset of tweaks from base_time(time_offset)
  • number of bad or out of range v samples(n_bad_v)
  • rotated covariance wc(cvar_rot_wc)
  • Virtual temperature (T)(mean_t)
  • number of valid v samples(n_good_v)
  • mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
  • Cross-boom wind velocity (v)(mean_v)
  • number of valid u samples(n_good_u)
  • Vertical angle of wind(phi)
  • time(time)
  • Vertical wind velocity (w)(mean_w)
  • number of bad or out of range u samples(n_bad_u)
  • covariance uq(cvar_uq)
  • variance of c(var_c)
  • covariance uv(cvar_uv)
  • average voltage of IRGA cooler(mean_cooler)
  • rotated covariance uv(cvar_rot_uv)
  • Retrieved water vapor density profile(rho)
  • covariance wc(cvar_wc)
  • number of bad or out of range q samples(n_bad_q)
  • vector averaged wind speed(wind_spd)
  • lat(lat)
  • covariance vt(cvar_vt)
  • rotated covariance vc(cvar_rot_vc)
  • 0=real or 1=dummy value of mr(real_mr)
  • variance of variable v(var_v)
  • covariance of qc(cvar_qc)
  • kurtosis of variable c(kurt_c)
  • number of bad or out of range t samples(n_bad_t)
  • Water vapor density (q)(mean_q)
  • covariance vc(cvar_vc)
  • base time(base_time)
  • mean co2 concentration (c)(mean_c)
  • mixing ratio(mr)
  • number of valid w samples(n_good_w)
  • rotated covariance uc(cvar_rot_uc)
  • average temperature (IGRA internal sensor)(temp_irga)

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DQRID : D060530.1
Start DateStart TimeEnd DateEnd Time
11/26/2005153001/07/20072359
Subject:
NIM/ECOR/M1 - Data Suspect for NW and East Wind Directions
DataStreams:nim30ecorM1.b1
Description:
Data for these wind directions must be closely evaluated to determine if it is correct or 
incorrect.  Problem will remain for the entire extend of the NIM deployment.
Measurements:nim30ecorM1.b1:
  • rotated covariance uw(cvar_rot_uw)
  • vw covariance(cvar_vw)
  • rotated covariance wc(cvar_rot_wc)
  • mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
  • CO2 flux(fc)
  • Virtual temperature (T)(mean_t)
  • h(h)
  • latent heat flux(lv_e)
  • rotated covariance vw(cvar_rot_vw)
  • rotated mean w(mean_rot_w)
  • Water vapor density (q)(mean_q)
  • covariance wq(cvar_wq)
  • rotated covariance wt(cvar_rot_wt)
  • rotated covariance wq(cvar_rot_wq)
  • mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
  • momentum flux (dynamic)(k)
  • mean co2 concentration (c)(mean_c)
  • uw covariance(cvar_uw)
  • covariance wc(cvar_wc)
  • mean value of \spike\ w samples(mean_spk_w)
  • wT covariance(cvar_wt)
  • Vertical wind velocity (w)(mean_w)
  • Friction velocity(ustar)
  • mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)

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DQRID : D070215.5
Start DateStart TimeEnd DateEnd Time
11/26/2005153001/07/20072330
Subject:
NIM/ECOR/M1 - Effects on ECOR CO2 Flux and Concentration By Aircraft
DataStreams:nim30ecorM1.b1
Description:
Aircraft landings, departures, and running aircraft on the airport pad
were found to produce large spikes in the half hourly CO2 flux and small spikes in CO2 
concentration on many days during the entire deployment of the AMF at NIM.  This influence 
was found on 40% of the days in March and April 2006 and sometimes for multiple periods in 
a day; this was typical of  the year of data.  The spikes range from only several 
micromoles s-1 m-2 to one hundred or more for flux (a typical spike was in the twenties) and 
near zero to 1.0 mmoles m-3 for CO2 concentration (typically around 0.15).

The aircraft influence was caused by persistent easterly winds; the airport
terminal pad and the nearest part of the runway were almost directly to the
east of the ECOR location.

Occasionally an influence on water vapor density was detected, but this was fairly rare 
and usually of very small magnitude.
Measurements:nim30ecorM1.b1:
  • rotated covariance vc(cvar_rot_vc)
  • covariance wc(cvar_wc)
  • rotated covariance wc(cvar_rot_wc)
  • covariance of tc(cvar_tc)
  • CO2 flux(fc)
  • rotated covariance uc(cvar_rot_uc)
  • variance of c(var_c)
  • covariance vc(cvar_vc)
  • covariance uc(cvar_uc)
  • mean co2 concentration (c)(mean_c)

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END OF DATA