Accession Number : AD0700974

Title :   DISPERSION OF AIR TRACERS INTO AND WITHIN A FORESTED AREA. VOLUME I.

Descriptive Note : Technical rept.,

Corporate Author : WASHINGTON UNIV SEATTLE COLL OF FOREST RESOURCES

Personal Author(s) : Fritschen,Leo J. ; Driver,Charles H. ; Avery,Charles ; Buffo,John ; Edmonds,Robert

Report Date : SEP 1969

Pagination or Media Count : 40

Abstract : Dispersion of fluorescent powders, dyes and spores from a clearcut area into and within a 45-year old Douglas-fir forest was studied under various meteorological conditions. A total of 111 rotorods samplers were used to trap the tracers within a canopy volume of 20 m height, 210 m width and 270 m length. Wind speed, direction and air temperature were monitored on five towers on a line perpendicular to the forest wall. Twenty-four multiple location releases were made during 1968 and 1969. Part 1 describes the experimental site, procedures and methods, Part 11 contains data collected and Part 111 results, discussion and conclusions. (Author)

Descriptors :   (*AIR POLLUTION, TRACER STUDIES), (*AEROSOLS, DIFFUSION), ATMOSPHERIC TEMPERATURE, POLLEN, GASES, FLUORESCENCE, DYES, INSECTS, MICROORGANISMS, WIND, FORESTRY

Subject Categories : Meteorology
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE