<#3>
Comment line: generated by vg on {now_str} with {info}
{ts} # met data input time step (seconds)
INCIDENT_LW #longwave radiation type (NETT LW, INCIDENT LW,CLOUD COVER)
FLOATING 10 # sensor type (FLOATING; FIXED HT), height in m (above water surface; above lake bottom)
Julian	Qsw	ILWR	theta	{moist_varname}	U	R
