Table Of Content

Historic, Archive Document Do not assume content reflects current scientific knowledge, policies, or practices. aSB763.C2F45 LIBRARY COPY ——~ United States FSCBG TECHNICAL MANUAL ) Department of Agriculture Forest Service Forest Pest Management Davis, CA FPM 92-4 March 1992 aoe FPM 92-4 C. D. I. Report No. 91-01 March 1992 FSCBG TECHNICAL MANUAL Prepared by: Milton E. Teske Continuum Dynamics, Inc. P. O. Box 3073 Princeton, NJ 08543 Contract No. 53-0343-9-00076 Prepared for: USDA Forest Service Forest Pest Management 2121C Second Street, Suite 102 Davis, CA 95616 (916) 758-4600 John W. Barry Project Officer 4.0 —_ 10-120} nogam {do (2vl dol LAUWAM JADIMEDAT D8DeF v6 bevaqart gf2T EL nnsits ori 2otmman yt] eqaa) EVOE 208 0.5 LEZRO (UA notsonta OtCen)-c-fLF0-£? of wan wit berqarl fasenaganaM 29h eed CO! siwS seated baoyed OISTS O10O@e AASD )2 Summary The version of FSCBG (Forest Service Cramer Barry Grim) described in this technical manual combines and implements mathematical models for aircraft wake effects, gaussian line source dispersion, droplet evaporation, canopy penetration, and ground and canopy deposition. FSCBG is designed to account for the atmospheric dispersion, transport, and deposition of all aerial spray material from the time of release until the spray material is either deposited or, in the case of spray drift, until the spray concentration and deposition levels become insignificant. Specific calculations made by FSCBG include spray concentrations and dosages above and within forest canopies as well as the spray deposition within and below forest canopies, resulting from aerial spray releases made along single or multiple flight paths. This document serves as the technical resource manual for FSCBG. ' ] wf 192 teow) OED Aso wont S - ve “et - M7? 2321 estat bac 4aaentmes bucreaett | it‘e la Caen oe ori elaA VS ih. er ren 9 pSrt od »auF yk Oo} DS pasi ) i |j ret iiogalt ¢ eM ia Up ’ te > « MI?4 3 ‘ eSx OU ‘ LO©T ION ¥ ig? GneTed \ ww puhtt rite Tick Pas bray me Lad / 9 \r er ete j o> wel| Bash gescrit ‘eostyze toh bet ate Pr i ‘ ey = ~ty 5 7 j3aue Jepohivgisar siarsed ioved mobtiag se 4 ’ ‘ ~ a ) swotls eee Bae |- OOCKMOSSIGD TIT d 1 askeeino wow? wolj edt\ o a» ii. w aoliyi en- s , i : | 1 Bi i] ie iryala | Giad ginictt 1 Shete> ted Gepaet si 4 s { i} i} He . Vie A ' { “ 4 U Mt), iF ius Table of Contents Section Summary Introduction Meteorology Evaporation Canopy 10 Near Wake 13 Dispersion AH References 55 staf @ 7" i o> 7 atrig } ; : ( 7 - * vE we a a as parr 4. y apcisy hein Yagakorcarsidl we o roster yey yqnas? slew wel cohmoqid . — ae