DQRID : D050421.2
Start DateStart TimeEnd DateEnd Time
02/23/2004000003/13/20050030
more
Subject:
SGP/ECOR/E16  - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data
DataStreams:sgp30ecorE16.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
16      2004    02      23      00      00
16      2004    02      28      00      00
16      2004    03      01      00      00
16      2004    03      09      00      00
16      2004    03      15      00      00
16      2004    03      17      00      00
16      2004    03      22      00      00
16      2004    03      30      00      00
16      2004    04      02      00      00
16      2004    07      22      00      00
16      2004    08      06      00      00
16      2004    09      05      00      00
16      2004    09      20      00      00
16      2005    03      13      00      00
Suggestions: 
null
Measurements:sgp30ecorE16.b1:
  • Latent heat of vaporization(lv)
  • Number of bad or out of range q samples(n_bad_q)
  • covariance of tq(cvar_tq)
  • number of valid c samples(n_good_c)
  • 0=real or 1=dummy value of rho(real_rho)
  • variance of q(var_q)
  • Rotated covariance vc(cvar_rot_vc)
  • rotated covariance vq(cvar_rot_vq)
  • number of valid q samples(n_good_q)
  • Number of q samples removed due to spikes(n_spk_q)
  • Covariance vq(cvar_vq)
  • mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
  • Covariance uc(cvar_uc)
  • Covariance wc(cvar_wc)
  • skewness of variable c(skew_c)
  • CO2 flux(fc)
  • Covariance qc(cvar_qc)
  • latent heat flux(lv_e)
  • mean water vapor concentration (q)(mean_q)
  • mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
  • Status of source for latent heat of vaporization(real_lv)
  • Number of bad or out of range c samples(n_bad_c)
  • covariance uq(cvar_uq)
  • mean co2 concentration (c)(mean_c)
  • rotated covariance uc(cvar_rot_uc)
  • specific heat of moist air(cp)
  • skewness of variable q(skew_q)
  • Rotated covariance wc(cvar_rot_wc)
  • rotated covariance wq(cvar_rot_wq)
  • covariance wq(cvar_wq)
  • Water vapor mixing ratio observed by the Raman lidar(mr)
  • variance of c(var_c)
  • Covariance tc(cvar_tc)
  • covariance vc(cvar_vc)
  • Status of source for mixing ratio(real_mr)
  • 0=real or 1=dummy value of cp(real_cp)
  • Number of c samples removed due to spikes(n_spk_c)
  • moist air density(rho)
more

Close this window