Accession Number : AD0617774

Title :   FURTHER STUDIES OF SPACE AND TIME VARIATIONS IN ATMOSPHERIC TRANSMISSION ALONG AIRPORT RUNWAYS.

Descriptive Note : Technical rept.,

Corporate Author : TRAVELERS RESEARCH CENTER INC HARTFORD CONN

Personal Author(s) : Hage,Keith D. ; Entrekin,Herbert D.

Report Date : MAR 1965

Pagination or Media Count : 37

Abstract : Space and time variations of transmission of visible light in the atmosphere during fog and precipitation are examined in detail as a preliminary step in the development of suitable short-period prediction techniques to be used at aviation terminals. This study is based primarily on data from three transmissometers along runways at John F. Kennedy International Airport, New York. The relative space scales of various classes of obstructions-to-vision are estimated and compared with similar estimates based on data from the National Aviation Facilities Experimental Center at Atlantic City, N. J. The apparent movement of the transmission field is derived and is related, insofar as possible, to advective and warm frontal movements. The potential predictability of linear translation of the transmission field is evaluated for periods of 5 to 25 minutes. Conditional frequencies of runway visual range for selected space and time lags are presented and compared with those found for Atlantic City Airport. (Author)

Descriptors :   (*RUNWAYS, VISIBILITY), (*LIGHT TRANSMISSION, ATMOSPHERES), (*AIR TRAFFIC CONTROL TERMINAL AREAS, VISIBILITY), (*ATMOSPHERES, LIGHT TRANSMISSION), TIME, ATMOSPHERIC PRECIPITATION, FOG, CORRELATION TECHNIQUES, VISUAL PERCEPTION

Distribution Statement : APPROVED FOR PUBLIC RELEASE