Record Display for the EPA National Library Catalog


Main Title Vertical fluxes and exchange coefficients in the air over St. Louis : field program 1975 /
Author Ackerman, Bernice.
Other Authors
Author Title of a Work
McElroy, James L.
CORP Author Illinois State Water Survey, Urbana.;Environmental Sciences Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory,
Year Published 1977
Report Number EPA-600/4-77-045; EPA-R-803682
Stock Number PB-276 628
OCLC Number 52757923
Subjects Atmospheric circulation ; Turbulent boundary layer ; Atmospheric circulation ; Turbulent boundary layer
Additional Subjects Air pollution ; Meteorological data ; Forecasting ; Thermodynamics ; Wind ; Boundary layer ; Aerial surveys ; Metropolitan areas ; Atmospheric diffusion ; Concentration(Composition) ; Flux density ; Exchanging ; Missouri ; Saint Louis(Missouri) ; Planetary boundary layer ; Land use ; RAPS program
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-4-77-045 Headquarters Library/Washington,DC 05/23/2014
EKBD  EPA-600/4-77-045 Research Triangle Park Library/RTP, NC 08/01/2003
ELBD ARCHIVE EPA 600-4-77-045 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-4-77-045 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-276 628 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 62 p. : ill. ; 28 cm.
A field program was carried out in the greater metropolitan area of St. Louis, MO during February and July of 1975 as part of the Regional Air Pollution Study (RAPS). The purpose of the program was to collect atmospheric measurements needed for future studies of the planetary boundary layer (PBL) over urban and industrial areas and surrounding rural areas. The overall goals of the PBL study are to (1) describe the thermodynamic, wind and turbulence fields over the region; (2) determine the magnitude and vertical variation of the vertical fluxes of heat, moisture and momentum as a function of land use; (3) obtain estimates of the exchange coefficients of these variables; and (4) determine the dependence of turbulence intensity on land use. Pilot-balloon stations provided simultaneous measurements of the wind profile with vertical resolution. Tethered-balloon sounding systems yielded thermodynamic and wind profiles. An airplane equipped with meteorological instruments provided measurements of the three components of wind velocity and of high frequency fluctuations in velocity, temperature and humidity. Observational periods, or missions, were scheduled for 3- or 4-hour durations during field experiments. The objectives included (a) mapping missions to delineate the thermodynamic, wind and turbulent fields over the region, (b) flux missions to provide estimates of the true vertical fluxes of momentum, heat and moisture simultaneously with vertical profiles of these variables, and (c) nocturnal missions to provide information on the strength of the nocturnal heat island circulation.
Project Officer: James L. McElroy. Illinois State Water Survey "November 1977"--Cover. "EPA-600/4-77-045"--Cover.