Impact of Meteorological Parameters on Atmospheric Turbidity over Lumbini, Nepal

Authors

  • Prakash M. Shrestha Patan Multiple Campus, Central Department of Physics (CDP), TU
  • Suresh P. Gupta Department of Physics, Patan Multiple Campus, TU
  • Usha Joshi Department of Physics, Patan Multiple Campus, TU
  • Krishna B. Rai Department of Physics, Patan Multiple Campus, TU
  • Narayan P. Chapagain Department of Physics , Amrit Campus, TU
  • Indra B. Karki Department of Physics, Patan Multiple Campus, TU
  • Khem N. Poudyal Department of Applied Sciences and Chemical Engineering, Pulchowk Campus,TU

DOI:

https://doi.org/10.3126/ppj.v3i2.66166

Keywords:

Angstrom exponential, Angstrom coefficient of turbidity, Linke turbidity factor, meteorological Parameter

Abstract

The main objective of this research is to study of impact of meteorological parameters on atmospheric turbidity index on Lumbini (27.49o N, 83.28o E, 110 m asl), Nepal for a period of one year (2018). The ground based data of spectral aerosol optical depth (AOD) are derived from Aerosol Robotic Network (AERONET) of NASA. Satellite based data of meteorological parameter (maximum temperature, minimum temperature, dew point, relative humidity, water contend and rainfall) are downloaded from NASA website. Daily, monthly and seasonal variation of atmospheric turbidity is analyzed. The annual average of Angstrom exponential ( α), Angstrom coefficient of turbidity ( β) and Linke turbidity factor (LT) are found 1.0 ± 0.2, 0.36 ± 0.20 and 8.3 ± 2.5 respectively. Correlation coefficient of meteorological parameters with atmospheric turbidity is analyzed. No significant effect of maximum temperature, minimum temperature, dew point and water contend on atmospheric turbidity. There is positive effect of rainfall on α, but negative effects of relative humidity and rainfall on β and LT. Atmospheric turbidity index is an important for the air pollution. Result of this research work is beneficial for the further identification, impact and analysis of atmospheric turbidity index on meteorological parameters at different places with same geographical condition.

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Author Biographies

Prakash M. Shrestha, Patan Multiple Campus, Central Department of Physics (CDP), TU

Department of Physics

Suresh P. Gupta, Department of Physics, Patan Multiple Campus, TU

Department of Physics

Usha Joshi, Department of Physics, Patan Multiple Campus, TU

Department of Physics

Krishna B. Rai, Department of Physics, Patan Multiple Campus, TU

Department of Physics

Narayan P. Chapagain, Department of Physics , Amrit Campus, TU

Department of Physics 

Indra B. Karki, Department of Physics, Patan Multiple Campus, TU

Department of Physics

Khem N. Poudyal, Department of Applied Sciences and Chemical Engineering, Pulchowk Campus,TU

Department of Applied Sciences and Chemical Engineering

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Published

2023-12-31

How to Cite

Shrestha, P. M., Gupta, S. P., Joshi, U., Rai, K. B., Chapagain, N. P., Karki, I. B., & Poudyal, K. N. (2023). Impact of Meteorological Parameters on Atmospheric Turbidity over Lumbini, Nepal. Patan Prospective Journal, 3(2), 104–114. https://doi.org/10.3126/ppj.v3i2.66166

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Articles