A measurement of water temperature, air temperature, wind spped, or salinity at the discharge measurement transect, in the units of the Specified parameter code. The date and time that the measurement was performed. This can be a partial date and time. The Parameter definition. The USGS parameter code indicating the parameter and units being sensed. The method code indicating a the specific method used to measure the data. The value measured. The units are the units of the parameter code. The Code indicating a remark about the value of the measurement. Organization code.