OLI/ECOR/M1 - CO2 Flux and Latent Heat Flux Missing

CO2 flux and latent heat flux, and CO2 and water vapor density were missing,  probably 
because the LI-7500 was obscured by frost or fog.

• Covariance tc(cvar_tc)
• Covariance uc(cvar_uc)
• covariance vc(cvar_vc)
• Covariance wc(cvar_wc)
• mean water vapor concentration (q)(mean_q)
• variance of q(var_q)
• covariance of tq(cvar_tq)
• covariance uq(cvar_uq)
• mean co2 concentration (c)(mean_c)
• Covariance vq(cvar_vq)
• covariance wq(cvar_wq)
• CO2 flux(fc)
• variance of c(var_c)
• latent heat flux(lv_e)
• Covariance qc(cvar_qc)