REAL-TIME PREDICTION OF POINT-SOURCE DISTRIBUTIONS USING AN ANEMOMETER-BIVANE AND A MICROPROCESSOR

被引：1

作者：

BURGER, LW ^{[1
]}

MULHOLLAND, M ^{[1
]}

机构：

[1] UNIV NATAL,DEPT CHEM ENGN,KING GEORGE V AVE,DURBAN 4001,SOUTH AFRICA

来源：

ATMOSPHERIC ENVIRONMENT | 1988年 / 22卷 / 07期

关键词：

ANEMOMETERS; -; COMPUTERS; MICROCOMPUTER - DATA PROCESSING - Data Reduction and Analysis - MATHEMATICAL MODELS;

D O I：

10.1016/0004-6981(88)90156-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An on-line air pollution prediction system has been developed. A single anemometer-bivane transmits wind data to a 64K RAM microprocessor. Turbulent components are filtered off and interpreted as horizontal and vertical diffusivities, while mean components are assumed to represent the entire local wind-field. A variable emission of pollutant is allowed in a defined area of up to 10 km multiplied by 10 km, and its distribution is simulated using a segmented Gaussian plume model. A continuous display shows ground-level concentration contours superimposed on a color map of the area. The picture is updated once per minute. A control box allows 'dumping' of the graphics picture to paper, 'zooming' to a smaller area for better definition, or examination of wind and model data on a text screen. Comparisons with short-range tracer experiments, and SO//2 measurements 5 km from a large source, showed that the system gave satisfactory predictions.

引用

页码：1309 / 1317

页数：9

共 31 条

[21] NUMERICAL EXPERIEMNT IN SIMULATING TRANSPORT OF SULFUR DIOXIDE THROUGH ATMOSPHERE [J].

RANDERSON, D .

ATMOSPHERIC ENVIRONMENT, 1970, 4 (06) :615-+

[22] The theoretical scattering of smoke in a turbulent atmosphere. [J].

Roberts, OFT .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1923, 104 (728) :640-654

[23] THE EFFECT OF WIND SHEAR ON HORIZONTAL SPREAD FROM AN INSTANTANEOUS GROUND SOURCE [J].

SAFFMAN, PG .

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 1962, 88 (378) :382-393

[24]

SHIOZOWA K, 1975, 68TH ANN M AIR POLL

[25] GENERALIZED URBAN AIR-POLLUTION MODEL AND ITS APPLICATION TO STUDY OF SO2 DISTRIBUTIONS IN ST-LOUIS METROPOLITAN AREA [J].

SHIR, CC ;

SHIEH, LJ .

JOURNAL OF APPLIED METEOROLOGY, 1974, 13 (02) :185-204

[26]

Singer I A, 1966, J Air Pollut Control Assoc, V16, P594

[27] THE DIFFUSION OF SMOKE FROM A CONTINUOUS ELEVATED POINT-SOURCE INTO A TURBULENT ATMOSPHERE [J].

SMITH, FB .

JOURNAL OF FLUID MECHANICS, 1957, 2 (01) :49-76

[28]

Sutton OG, 1953, MICROMETEOROLOGY

[29]

Taylor G., 1920, P LOND MATH SOC, V20, P196, DOI [10.1112/plms/s2-20.1.196, DOI 10.1112/PLMS/S2-20.1.196, DOI 10.1063/1.1691776]

[30]

TURNER DB, 1970, PUBL US EPA A, V26

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