Accession Number : AD0696094

Title :   WORLD FREQUENCY OF HIGH TEMPERATURE.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Tattelman,Paul I. ; Sissenwine,Norman ; Lenhard,Robert W. , Jr

Report Date : AUG 1969

Pagination or Media Count : 38

Abstract : In order to determine the highest surface air temperature at which standardized military materiel should be able to operate, world maps showing frequency of exceedance of various high temperatures are needed. Ideally these should be prepared by plotting probabilities of exceedance from frequency distributions of hourly temperatures, but such frequency distributions are not available on a world wide basis. An index was devised that could be related to temperatures exceeded 1, 5, and 10% of the time. The index is the sum of the mean and the mean daily range of temperature for the warmest month. The three relationships obtained were applied to estimate and map temperatures exceeded with the stated frequencies for 450 of the warmest locations of the world. Conclusions are drawn as to the interpretation of various temperature limits. (Author)

Descriptors :   (*AIRCRAFT EQUIPMENT, THERMAL STABILITY), (*ATMOSPHERIC TEMPERATURE, METEOROLOGICAL CHARTS), SURFACE TEMPERATURE, MILITARY REQUIREMENTS, STANDARDIZATION, PROBABILITY, DIURNAL VARIATIONS, INDEXES, TROPICAL REGIONS, DESIGN

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE