Author: Krzysztof Markowicz, e-mail kmark@igf.fuw.edu.pl Date: Last modified, Dec 2025 Device: ASC1000 Instrument to control relative humidity All data saved in UTC time Structure of files: Lev 1.0 raw data includes ASCII files: Daily files without header. The data includes following columns: year, month,day,hour,minute,sec, --, relative humidity-dry,relative humidity-wet, relative humidity-neutral,--, temperature-dry,tempeprature-wet, temperature-neutral,--,'--',temperature humidograph, '--',flow speed-wet, flow speed-dry, flow speed purge, flow spedd purge Aux,--,relative himidity inlet, temperature inlet. Lev 1.5 matlab file. Data from this level includes corrected optical properties. (see processlev15aeth.m file for mode details) Data includes data structure with following fields: year: year month: month day: day time: time [UTC] doy: day of year timeMATLAB: matlab format (number of days since Jan 1 of 0) RHdry=met(:,8); RHwet=met(:,9); RHneutral=met(:,10); Tdry=met(:,12); Twet=met(:,13); Tneutral=met(:,14); Thumid=met(:,17); FlowLeft=met(:,19); FlowRight=met(:,20); FlowLeftPurge=met(:,21); FlowRightPurgeAux=met(:,22); Tflow=met(:,23); RHinlet=met(:,24); Tinlet=met(:,25); Lev 2.0 the same structure as the Lev 1.5 data.