Sample LBA Reference Site data for CEOP This metadata file describes the sample LBA data for Brasilia site (type of surface "Cerrado" (Savanna)) CONTACT: Jose Marengo CPTEC/INPE Rodovia Presidente Dutra, km 39 12630-000 Cachoeira Paulista Sao Paulo, Brazil Telephone: +55 12 560 8464 Facsimile: +55 12 560 8542 E-mail: marengo@cptec.inpe.br Brasilia site - "Cerrado" - Excel file: Brasilia_AWS_flux.XLS Data from eddy covariance system (worksheet "flux") Data columns: Date Local time (hours) H - sensible heat flux, W/m2 LE - latent heat flux, W/m2 E - Water flux, mmol/m2/s C - CO2 flux, (mol/m2/s U* - friction velocity, m/s tau - momentum flux Var u - variance of u component Var v - variance of v component Var w - variance of w component Var t - variance of air temperature Var c - variance of CO2 concentration Var h - variance of H2O concentration av u - average of u component, m/s av v - average of v component, m/s av w - average of w component, m/s av t - average of air temperature, (degC) av c - average of CO2 concentration, ppm av h - average of H2O concentration, g/m3 v hor - mean horizontal wind velocity, m/s WD - mean wind direction, degrees alpha - First rotation beta - second rotation gamma - third rotation c lag - lag for CO2 h lag - lag for H2O L - Monin-Obukhov lenght zeta - Monin-Obukhov stability parameter corr LE - latent heat flux, corrected for system frequency response corr E - water flux, corrected for system frequency response corr C - CO2 flux, corrected for system frequency response foot-peak - horizontal distance of peak of footprint function, m 50 %-fetch - horizontal distance of 50 % fetch 90 %-fetch - horizontal distance of 90 % fetch H/LE - Bowen ratio sttest1, sttest2, itchu, itchw, itcht - stationary and quality tests var u (rot) - variance of u component after rotations var v (rot) - variance of v component after rotations var vhor - variance of horizontal wind var wd - variance of wind direction recs - number of records Data from meteorological sensors installed in tower (worksheet "AWS") NET - net radiation, W/m2 Sin - incident solar radiation, W/m2 Sout - reflected solar radiation, W/m2 PAR in - incident PAR, (mol/m2/s PAR out - reflected PAR, (mol/m2/s G - soil heat flux, W/m2 T1 - air temperature, oC T2 - air temperature, oC For additional information please contact: Jair Maia University of Brasilia (UnB) e-mail: jair_maia@yahoo.com