TY - RPRT TI - A summary of low visibility conditions at the Arcata airport AU - Davis, James E AU - Simeroth, J W AU - Wilkerson, J C PY - 1968 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS report ; 9958 DO - 10.6028/NBS.RPT.9958 ER -