Record Display for the EPA National Library Catalog

RECORD NUMBER: 18 OF 20

OLS Field Name OLS Field Data
Main Title Test of a Prototype Eddy Accumulator for Measuring Atmospheric Vertical Fluxes of Water Vapor and Particulate Sulfate.
Author Speer, R. E. ; Peterson, K. A. ; Ellestad, T. G. ; Durham, J. L. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1985
Report Number EPA/600/J-85/480;
Stock Number PB87-179024
Additional Subjects Eddies ; Wind velocity ; Accumulators ; Tests ; Prototypes ; Samplers ; Water vapor ; Comparison ; Anenometers ; Flow rate ; Sulfates ; Reprints ; Particulates
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB87-179024 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 6p
Abstract
An eddy accumulator offers an appealing approach to measuring fluxes of species for which fast-response sensors are not available. The device accumulates trace atmospheric species into an updraft sampler and a downdraft sampler at rates proportional to the vertical wind speed. The flux of the species is related to the difference in mass collected. The device was operated during the Dry Deposition Intercomparison Study at Champaign, Illinois in June 1982 and collected samples for water vapor and sulfate flux determination. A general description of the device and its operation at the field site are given along with a description of the analysis methods for determining fluxes.