Comment about Data and Quality 
Unit of each parameter in ACL2180TPM data is as follows: column E (Salinity): [ ], column F (SigmaT): [ ], column G (Density): [kg/m^3], column H (Conductivity): [mS/cm], column I (Temperature): [degree Celsius], column J (Depth): [m], column H (Fluorescent intensity of chlorophyll a): [ppb (concentration expressed in terms of uranine], column I (Turbidity): [ppm (kaolinite turbidity unit] and column J (Voltage of battery): [V]. Unit of each parameter in ASTD687 data is as follows: column A (Depth): [m], column B (Temperature): [degree Celsius], column C (Salinity): [ ], column D (Conductivity): [mS/cm], column E (Conductivity at 25 degree Celsius): [uS/cm], column F (Density): [kg/m^3], column G (SigmaT): [ ], column H (Fluorescent intensity of chlorophyll a): [ppb (concentration expressed in terms of uranine] and column I (Turbidity): [FTU (formazin turbidity unit]. Unit of each parameter in ASTD102 data is as follows: column A (Depth): [m], column B (Temperature): [degree Celsius], column C (Salinity): [ ], column D (Conductivity): [mS/cm], column E (Conductivity at 25 degree Celsius): [uS/cm], column F (Density): [kg/m^3], column G (SigmaT): [ ], column H (Fluorescent intensity of chlorophyll a): [ppb (concentration expressed in terms of uranine], column I (Concentration of Chlorophyll a): [ug/L (concentration expressed in terms of uranine], column J (Turbidity): [FTU (formazin turbidity unit], column K (Saturation degree of dissolved oxygen): [%], column L (Concentration of dissolved oxygen): [mg/L] and column M (Voltage of battery): [V]. Turbidity and Fluorescent intensity obtained by ACL2180TPM in September 2011 were outlying observation. Turbidity and Fluorescent intensity obtained by ASTD102 from May 2013 were outlying observation. 
