DQRID : D050222.1
Start DateStart TimeEnd DateEnd Time
06/14/2004000006/14/20040030
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Subject:
SGP/ECOR/E6  - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data
DataStreams:sgp30ecorE6.b1
Description:
Due to system clock instability on ECOR computers their system time is adjusted 
approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, 
into the previous day. In this case all the data based on CO2/H2O measurements might be 
erroneously marked as bad. Below is a list of times when that might have happen.

SITE    YEAR    MONTH   DAY     HOUR    MINUTE
06      2004    06      14      00      00
Suggestions: 
null
Measurements:sgp30ecorE6.b1:
  • Rotated covariance wc(cvar_rot_wc)
  • mean co2 concentration (c)(mean_c)
  • rotated covariance uc(cvar_rot_uc)
  • skewness of variable q(skew_q)
  • Covariance qc(cvar_qc)
  • mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
  • number of valid q samples(n_good_q)
  • covariance uq(cvar_uq)
  • covariance wq(cvar_wq)
  • Rotated covariance uq(cvar_rot_uq)
  • variance of q(var_q)
  • rotated covariance wq(cvar_rot_wq)
  • covariance vc(cvar_vc)
  • mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
  • kurtosis of variable q(kurt_q)
  • 0=real or 1=dummy value of cp(real_cp)
  • Water vapor mixing ratio observed by the Raman lidar(mr)
  • latent heat flux(lv_e)
  • variance of c(var_c)
  • Number of c samples removed due to spikes(n_spk_c)
  • Latent heat of vaporization(lv)
  • Status of source for mixing ratio(real_mr)
  • Rotated covariance vc(cvar_rot_vc)
  • Covariance tc(cvar_tc)
  • covariance of tq(cvar_tq)
  • Covariance vq(cvar_vq)
  • kurtosis of variable c(kurt_c)
  • Number of q samples removed due to spikes(n_spk_q)
  • Number of bad or out of range q samples(n_bad_q)
  • rotated covariance vq(cvar_rot_vq)
  • mean water vapor concentration (q)(mean_q)
  • CO2 flux(fc)
  • moist air density(rho)
  • Covariance uc(cvar_uc)
  • Covariance wc(cvar_wc)
  • Number of bad or out of range c samples(n_bad_c)
  • number of valid c samples(n_good_c)
  • skewness of variable c(skew_c)
  • 0=real or 1=dummy value of rho(real_rho)
  • Status of source for latent heat of vaporization(real_lv)
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