Journal ArticleDOI
Stability studies with the help of acoustic sounding
Reads0
Chats0
TLDR
A Monostatic acoustic sounder has been operating at the National Physical Laboratory, New Delhi (India) for several years as discussed by the authors for the period from May 1977 to April 1982, and a systematic classification of the observed structure has also been proposed to give information on the prevailing Pasquill stability category which determines pollution dispersion.About:
This article is published in Atmospheric Environment.The article was published on 1985-01-01. It has received 34 citations till now. The article focuses on the topics: Wind direction.read more
Citations
More filters
Journal ArticleDOI
Air pollution modeling for an industrial complex and model performance evaluation.
TL;DR: The impact of NOx emissions resulting from various air pollution sources, viz. industries, vehicles and domestic, was estimated using Industrial Source Complex Short-Term gaussian dispersion model and the model performance was good with an accuracy of about 68%.
Journal ArticleDOI
Assessment of contribution of SO2 and NO2 from different sources in Jamshedpur region, India
TL;DR: In this article, a comprehensive emission inventory and estimation of spatial distribution of pollution loads in terms of SO 2 and NO 2 from different types of industrial, domestic and vehicular sources in Jamshedpur, the steel city of India, has been estimated in winter 1993 using two approaches in order to delineate and prioritize air quality management strategies for the development of region in an environmental friendly manner.
Journal ArticleDOI
Variation in aerosol black carbon concentration and its emission estimates at the mega-city Delhi
Tarannum Bano,Sachchidanand Singh,N. C. Gupta,Kirti Soni,R. S. Tanwar,S. Nath,B. C. Arya,B. S. Gera +7 more
TL;DR: In this article, simultaneous measurements of aerosol black carbon (BC) mass concentration using an Aethalometer Model AE-42 and mixing layer height (MLH) using a monostatic sonic detection and ranging (SODAR) system were carried out from January 2006 to January 2007 at the mega-city Delhi.
Journal ArticleDOI
Effects Of Changing Surface Heat Flux On Atmospheric Boundary-Layer Flow Over Flat Terrain
Antony Z. Owinoh,Antony Z. Owinoh,Julian C. R. Hunt,Julian C. R. Hunt,Andrew Orr,Peter Clark,Rupert Klein,H. J. S. Fernando,H. J. S. Fernando,Frans T. M. Nieuwstadt +9 more
TL;DR: In this article, the authors examined the unsteady response of a neutral atmospheric boundary layer (ABL) of depth h and friction velocity u * when a uniform surface heat flux is applied abruptly or decreased rapidly over a time scale t thetas less than about h /(10u *).
Journal ArticleDOI
Application of sodar to air pollution meteorology
TL;DR: In this article, a remote sensing acoustic sounding system has been used to determine Pasquill stability classification, mixing height and diffusion coefficients from monostatic sodar echograms.
References
More filters
Journal ArticleDOI
Estimates of mean maximum mixing depths in the contiguous united states
TL;DR: In this paper, the assumption of a dry adiabatic lapse rate was used to estimate monthly mean maximum mixing depths (MMD) for 45 radiosonde stations in the contiguous United States.
Journal ArticleDOI
Book Review: Meteorology and atomic energy. Editor David H. Slade. Published by U.S. Atomic Energy Commission/Division of Technical Information. Available as TID—24190 from Clearing House for Scientific and Technical Information, National Bureau of Standards, U.S. Dept. of Commerce, Springfield, Virginia 22151,1968. 445 pp. Price, paper bound, $3.00
Journal ArticleDOI
The Combined Effect of Temperature and Humidity Fluctuations on Refractive Index
TL;DR: In this paper, the local Bowen ratio was used to determine when variations in both temperature T and water vapor pressure e are important sources of refractive index fluctuations, provided T and e are highly correlated.
Journal ArticleDOI
Acoustic methods for the remote probing of the lower atmosphere
TL;DR: In this paper, the potential usefulness of acoustic methods for the remote probing of the lower atmosphere is reviewed, starting with a comparison of the effects of temperature, wind, and humidity fluctuations upon the refractive index of air to electromagnetic and acoustic waves.
Journal ArticleDOI
Advances in atmospheric acoustics
Edmund H. Brown,Freeman F. Hall +1 more
TL;DR: A detailed review of developments in atmospheric acoustics of the last decade is given in this paper, which includes new ways to use refractive effects, studies of phase and amplitude fluctuations during propagation of sound along a path, nonlinear effects near high-powered acoustic antennas, problems related to noise, insights into large-scale atmospheric processes gained from infrasound, applications dependent on the Doppler frequency shift, and hybrid devices using both acoustic and electromagnetic waves.