Journal of Atmospheric Pollution
ISSN (Print): 2381-2982 ISSN (Online): 2381-2990 Website: http://www.sciepub.com/journal/jap Editor-in-chief: Ki-Hyun Kim
Open Access
Journal Browser
Go
Journal of Atmospheric Pollution. 2015, 3(1), 31-38
DOI: 10.12691/jap-3-1-6
Open AccessArticle

The Analysis of Influence of Weather Conditions on Atmospheric Extinction Coefficient over Bauchi, North Eastern Nigeria

D. Buba1, F.O. Anjorin2, and A. Jacob3

1Department of PRE-ND, Federal Polytechnic, Bauchi State-Nigeria

2Department of Physics, University of Jos. Plateau State-Nigeria

3Department of Pure and Applied Physics, Federal University Wukari, Taraba State-Nigeria

Pub. Date: December 25, 2015

Cite this paper:
D. Buba, F.O. Anjorin and A. Jacob. The Analysis of Influence of Weather Conditions on Atmospheric Extinction Coefficient over Bauchi, North Eastern Nigeria. Journal of Atmospheric Pollution. 2015; 3(1):31-38. doi: 10.12691/jap-3-1-6

Abstract

Weather conditions are natural causes of visibility deterioration and increase in atmospheric extinction coefficient at a place. A 10- year dataset (1998-2007) of visibility and meteorological parameters such as Relative Humidity, Temperature and Atmospheric Pressure measured every 3-hour daily were analysed to examine the dependence of Atmospheric Extinction Coefficient, βext on seasonal meteorological conditions and synoptic weather patterns in Bauchi, a City in the North-eastern-Nigeria. From the visibility data obtained, the corresponding atmospheric extinction coefficient (βext) for the period under review was computed by using the Koschmieder relationship. In year 2000, when the Relative Humidity and atmospheric extinction coefficient, βext are highest, the temperature and visibility values are lowest. In 2003, when temperature (29.82°C) is highest, the Relative Humidity (42.52%) is lowest, although, the atmospheric coefficient was not at its lowest neither was the visibility (18.49km) at its highest. Of the years considered, year 2000 has the highest estimated atmospheric extinction coefficient, βext for both raining season and harmattan season. The raining season (June-September) has βext of 0.267 while the harmattan season has βext of 0.689. Their respective decadal mean for both raining season and harmattan season for the period under review are 0.205 ± 0.036 and 0.689±0.133.

Keywords:
atmospheric extinction coefficient weather visibility Bauchi

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]  American Meteorological Society. (2000). Glossary of Meteorology (edited by Glickman TS). 850 pp.
 
[2]  Blackwell, H., 1946. Contrast thresholds of the human eye.
 
[3]  Chatfield, C., The analysis of time series: an introduction, 4 ed1996, Weinheim. New York. Tokyo: Chapman & Hall London.
 
[4]  Cocker, D. C., N. E. Whitlock, R. C. Flagan, et al., 2001: Hygroscopic properties of Pasadena, California aerosol, Aerosol Sci. Technol., 35, 637-647.
 
[5]  El-Shazely SM, Abdelmaged AM, Hassan GY, Nobi B. Atmospheric extinction related to aerosol mass concentration and meteorological condition in the atmosphere of Qena (Egypt). Mausam 1991;42:367±74.
 
[6]  Hursar R.B and Hursar J.D., (1996): Air Pollution Emissions, Atmospheric Processes and Effects on Visibility. Center for Air Pollution Impact and Trend Analysis (CAPITA). Washington University.
 
[7]  Isikwue, B., M. Akiishi and E. Utah, 2014. Investigation of Radiation Energy Balance in some selected cities in Nigeria. IOSR Journal of Applied Physics, 6(2): 21-27.
 
[8]  Koschmieder, H., 1930. Measurements of visibility at Danzig. Monthly Weather Review, 58: 439.
 
[9]  Liu, X. G., Y. H. Zhang, Y. F. Cheng, et al., 2012: Aerosol hygroscopicity and its impact on atmospheric visibility and radiative forcing in Guangzhou during the 2006 PRIDE-PRD campaign, Atmos. Environ., 60, 59-67.
 
[10]  Malm, K. C., and D. E. Day, 2001: Estimates of aerosol species scattering characteristics as a function of relative humidity. Atmos. Environ., 35, 2845-2860.
 
[11]  Shendrikar, A. D., and W. K. Steinmetz, 2003: Integrating nephelometer measurements for the airborne fine particulate matter (PM2.5) mass concentrations. Atmos. Environ., 37, 1383-1392.
 
[12]  Swietlicki, E., J. Zhou, O. H. Berg, et al., 1999: A closure study of sub-micrometer aerosol particle hygroscopic behavior, J. Atmos. Res., 50, 205-240.
 
[13]  SWOV Fact sheet, (2012). The influence of weather on road safety. Institute of Road Safety Research, Netherlands. Pg.1.
 
[14]  United Kingdom Meteorological Office. (1994). Handbook of Aviation Meteorology. 412pp.
 
[15]  Goyal,P, Sumer Budhiraja, Anikender Kumar (2014): Impact of Air Pollutants on Atmospheric Visibility in Delhi. International Journal of Geology, Agriculture and Environmental Sciences Volume – 2 Issue – 2 April 2014.
 
[16]  Shaltout Mosalam M.A., Tadros M.T.Y., El-Metwally M. (2000): Studying the extinction coefficient due to aerosol particles at di€erent spectral bands in some regions at great Cairo. Renewable Energy 19 (2000) 597-615.