Zobrazeno 1 - 10 of 19 pro vyhledávání: '"F. L. Ludwig"'
1
MULTIRESOLUTION FEATURE ANALYSIS AND OTHER TECHNIQUES FOR UNDERSTANDING AND MODELING TURBULENCE IN STABLE ATMOSPHERES Final Report
Autor: Y. Chen, R. L. Street, F. L. Ludwig
Our DOE project is one of the efforts comprising the Vertical Transport and Mixing Program of the Environmental Sciences Division of the Office of Biological and Environmental Research in Department of Energy. We used ARPS to simulate flow in the Sal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92244144d04aa7bc07ed093b16dd028b
https://doi.org/10.2172/838515
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2
Objective Meteorological Analysis for Use on Personal Computers to Provide Air Quality Model Inputs
Autor: F. L. Ludwig, Peter F. Lester
Publikováno v: Air Pollution Modeling and Its Application VIII ISBN: 9781461366553
Typically, meteorological data are available from only a few sites in an area where air quality model applications are to be made. The most sophisticated air quality models require three-dimensional, gridded values of winds and turbulence. Even simpl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a76b69db10313639c4d60c25f3ee0d8c
https://doi.org/10.1007/978-1-4615-3720-5_68
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3
Lidar Observations of the Diurnal Behavior of the Cumberland Power Plant Plume
Autor: F. L. Ludwig, Francis Pooler, E. E. Uthe
Publikováno v: Journal of the Air Pollution Control Association. 30:889-893
Mobile lidar observations were made downwind of TVA's Cumberland (Tennessee) Power Plant as part of the state (sulfur transport and transformation in the environment) program. Vertical profiles of aerosol backscatter have been processed and displayed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6430df36ff1416bb82ac56151b9b1792
https://doi.org/10.1080/00022470.1980.10465125
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4
Transport and Diffusion Calculations during Time- and Space-Varying Meteorological Conditions Using a Microcomputer
Autor: F. L. Ludwig
Publikováno v: Journal of the Air Pollution Control Association. 34:227-232
Small computers can now solve complex transport and diffusion problems. Making such calculations rapidly and on the spot would be very useful for decision makers during emergencies. This paper describes a microcomputer model that can simulate nonstea
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d23e0535da9f5f6b7d1cce9b4da0734
https://doi.org/10.1080/00022470.1984.10465744
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6
Empirical Relationships between Observed Ozone Concentrations and Geographical Areas with Concentrations Likely to Be above 120 ppb
Autor: F. L. Ludwig, E. Shelar
Publikováno v: Journal of the Air Pollution Control Association. 30:894-897
The extent to which existing ozone monitoring data can be used to represent concentrations outside the area immediately surrounding a monitoring station is investigated. The results should be of Interest to those who wish to define areas within which
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06ff3b9bf1d020a1e5def790937c0339
https://doi.org/10.1080/00022470.1980.10465126
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7
How Many Stations Are Required to Estimate the Design alue and the Expected Number of Exceedances of the zone Standard in an Urban Area?
Autor: H. S. Javitz, F. L. Ludwig, A. Valdés
Publikováno v: Journal of the Air Pollution Control Association. 33:963-967
A methodology for determining regional ozone design values and the expected number of exceedances is described. The methodology was applied to data bases for one year or less from four U.S. urban areas: Houston, Los Angeles, Philadelphia, and St. Lou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be2e7788eea6b8d98d3b00179e7b22d2
https://doi.org/10.1080/00022470.1983.10465678
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8
Effects of urbanization on turbulent diffusion and mixing depth
Autor: F. L. Ludwig, W. F. Dabberdt
Publikováno v: International Journal of Biometeorology. 17:1-11
Analysis of wind direction fluctuation-data indicates that turbulent diffusion in urban areas is significantly larger than in the country; urban diffusion occurs at a rate characteristic of less stable rural conditions. Differences between urban and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::849bd51f00b936f957e9a4ce8f33b95c
https://doi.org/10.1007/bf01553640
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10
A High-precision Vectorial Integration System for Anemometers1
Autor: L. P. Reiche, F. L. Ludwig
Publikováno v: Bulletin of the American Meteorological Society. 42:314-316
An electronic instrumentation scheme for AC-type anemometers is described which permits the ten-minute-average wind vector to be determined with higher precision and reliability than by other means known to the authors. The average vector is convenie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bf49f177040c6195c4682d79ed8c137c
https://doi.org/10.1175/1520-0477-42.5.314
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