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1 edition of Mixed layer modeling of aerosols in the marine boundary layer found in the catalog.

Mixed layer modeling of aerosols in the marine boundary layer

K.L. Davidson

Mixed layer modeling of aerosols in the marine boundary layer

by K.L. Davidson

  • 314 Want to read
  • 17 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in English

    Subjects:
  • Boundary layer (Meteorology),
  • Meteorology,
  • Ocean-atmosphere interaction

  • About the Edition

    A mixed layer dynamic model for the structure and evolution of aerosols in the marine regime is presented. The ambient aerosol spectrum is divided into the continental and sea salt components and transformed to a reference saturation ratio, S = 0.8 (80% relative humidity). The temporal evolution of the aerosol spectrum is predicted from rate equations which require a specification of the surface production rate, the entrainment rate, (W(e)) and the mixed layer depth (h). The model was tested against a marine data set obtained off Southern California during the CEWCOM-78 experiment. The test was with two different methods of obtaining the relevant meteorological and aerosol parameters: (1) actual measurements and (2) dynamic boundary layer model prediction and parameterization. In the first case the model reproduced the aerosol data within a factor of 1.5 while in the second case the uncertainty factor was 2.0. In either case the model only modestly outperforms the much simpler Wells-Munn-Katz (WMK) model, which uses only local specification of the wind speed and humidity. Suggested improvements of the mixed layer model are presented. (Author)

    Edition Notes

    Statementby K.L. Davidson, C.W. Fairall, and G.E. Schacher
    ContributionsNaval Postgraduate School (U.S.), Fairall, C.W. (Christopher W.), Schacher, G.E. (Gordon Everett)
    The Physical Object
    Pagination51 p. :
    Number of Pages51
    ID Numbers
    Open LibraryOL25476742M
    OCLC/WorldCa80023903

    At 20S, boundary layer depth away from the coast also differs strongly between models. Yes P. Saide Yes 47 12 Regional WRF-Chem UIOWA U. Iowa Large model biases in cloud fraction, liquid water path, and boundary layer depth are present in most models, similar to the PreVOCA study. Models show large biases in aerosol and chemical concentrations.   The chemical composition of individual particles > μm sampled duringthe MAST-experiment wereanalysed by SEM-EDX, in combination with multivariatetechniques. The objective of this experiment was toidentify the mechanisms responsible for themodification of marine stratocumulus clouds byemissions from ships and in a wider sense to provideinformation on the global processes Cited by:

    T. Luo et al.: Marine boundary layer structure as observed by A-train satellites to attempt a combination of MODIS and reanalysis data to study the MBL decoupling, though this passive remote sens-ing cannot produce direct measurements of MBL structures. New satellite-based observations allow for . Science and Applications Drivers for Boundary Layer Observations. Given the importance of the BL for a number of scientific research, applications, and modeling efforts, workshop participants explored specific aspects of BL research in detail. 1 Introduction. The ocean surface boundary layer (OSBL) is typically defined by a quasi‐homogeneous density structure which can range from a few metres to several hundred meters in depth and is created by turbulent mixing forced by the wind, surface gravity waves, and convective cooling.

    The model simulates such processes as particle production at the sea surface, mixing of particles through the boundary layer by turbulent diffusion, gravitational settling, and dry deposition. The model is initialized at the shoreline with continental and/or surf by: RADIATIVE IMPACTS OF ABSORBING AEROSOLS ON TROPICAL MARITIME BOUNDARY LAYER AND TRADE WIND CUMILI Hailong Wang1, Greg M. McFarquhar1 and Wojciech Grabowski2 1University of Illinois, Dept. of Atmospheric Sciences, Urbana, IL 2National Center for Atmospheric Research (NCAR), Boulder, CO 1. INTRODUCTION purpose of this study is to better characterize the Author: Hailong Wang, Greg M. McFarquhar, Wojciech Grabowski. The intensity and polarization of light scattered from marine aerosols affect visibility and contrast in the marine atmospheric boundary layer (MABL). The polarization properties of scattered light in the MABL vary with size, refractive index, number distributions, and environmental conditions. Laboratory measurements were used to determine the characteristics and variability of the.


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Mixed layer modeling of aerosols in the marine boundary layer by K.L. Davidson Download PDF EPUB FB2

SyntaxTextGen not activatedEstimating the pdf radiative effect of absorbing aerosols overlying marine boundary layer clouds in the southeast Atlantic using MODIS and CALIOP Kerry Meyer,1,2 Steven Platnick,2 Lazaros Oreopoulos,2 and Dongmin Lee1,2 Received 26 October ; revised 17 April ; accepted 24 April ; published 29 May File Size: 2MB.bringing aerosols to the lower marine boundary layer with a chemical signature of biomass burning.

Significant aerosol extinction again extended to 4 km (Voss et al., this issue a). Region 6: 5°S to °S, South Atlantic tropical marine air mass At 5°S, surface ozone and .Influence of Organic-Containing Aerosols.

on Ebook Boundary Layer Processes. John H. Seinfeld. California Institute of Technology. Chemical Engineering Pasadena, CA phone: () fax: () email: [email protected] Award .