EVALUATION OF SEVERAL MULTI-TRANSMISSOMETER SYSTEMS,

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Abstract:

A test program was developed and implemented to evaluate multi-transmissometer systems. These consist primarily of instruments at touchdown, mid-point, and rollout locations at five airfields distributed across the continent in differing climatic regimes. The airfields are located at Atlantic City, N. J., New York City, N. Y., Chicago, Ill., Denver, Colo., and Los Angeles, Calif. The data acquisition technique and program are described. Further data processing is scheduled. Partial analysis of available data indicates that no single transmissometer will always be most representative of lowest visibility conditions at any airport and even with three systems along the runway unreported variations in RVR will still occur. Analysis of 55-, 45-, and 15-second sampling intervals for RVR computation shows little difference between 55- and 45-second sampling. The number and magnitude of differences increase when RVR from a 15-second sampling is compared to RVR from a 55-second sampling especially during rapid changes in transmittance. Author

Author(s):
Schlatter, Ernest E.
Author Organization(s):
WEATHER BUREAU ATLANTIC CITY N J TEST AND EVALUATION LAB
Pagination:
0111

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FAA-RD-67-72
Project Number(s):
450-402-05E
Monitor Series:
67-72
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*RUNWAYS, *VISIBILITY), (*OPTICAL INSTRUMENTS, *ATMOSPHERES), PERFORMANCE(ENGINEERING), MARKER LIGHTS, METEOROLOGICAL INSTRUMENTS, AIRPORTS, ALL WEATHER AVIATION, NIGHT LANDINGS, LANDING FIELDS, SAMPLING
Field(s)/Group(s):
Terminal Flight Facilities, Meteorology
Keyword(s):
RUNWAY VISUAL RANGE, RVR(RUNWAY VISUAL RANGE), *TRANSMISSOMETERS
Report Date:
1967 Dec 01