NIM/ECOR/M1 - Data Suspect for NW and East Wind Directions

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.

• 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)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• corrected sensible heat flux(h)
• latent heat flux(lv_e)
• rotated covariance vw(cvar_rot_vw)
• rotated mean w(mean_rot_w)
• mean water vapor concentration (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)
• mean w (vertical) wind component(mean_w)
• friction velocity(ustar)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)

NIM/ECOR/M1 - CO2/H20 Fluxes Incorrect

The analog output of the CO2/H2O sensor was not being properly acquired by the sonic or 
the data acquisition system. 

CO2 and latent heat fluxes were therefore incorrect.  All other measurements
were correct.

• CO2 flux(fc)
• latent heat flux(lv_e)