Study of Linke Turbidity Factor on Solar Radiation over Jumla

Authors

  • Prakash M. Shrestha Department of Physics at Patan Campus Department of Physics, Patan Multiple Campus, Tribhuvan University, and pursuing PhD
  • Indra B. Karki Nepal Nepal Open University
  • Narayan P. Chapagain Department of Physics, Amrit Campus, Tribhuan University
  • Khem N. Poudyal Department of Applied Sciences ,IOE Pulchowk Campus ,Tribhuan University

DOI:

https://doi.org/10.3126/mef.v9i0.33595

Keywords:

air mass, clearness index, extinction coefficient, Linke turbidity, meteorological parameters

Abstract

 Population growth, mechanization, and industrialization are the by product of human civilization and its resultant impacts goes to degrade the natural environment by the affecting of air-pollution and also associated with climatic change. Linke turbidity factor (LT) is an important parameter for assessing the air pollution at Jumla (Lat.:29.28o N, Long.: 82.16o E and Alt. 2300 masl). Because of the unavailability of spectral measurements data , a model has been used to estimate the Linke turbidity factor (TL) from broadband measurement of Global Solar radiation in 2012 .The annual average solar insolation, clearness index (KT) and extinction coefficient (K) are 5.11 ±2.34kWh/m2/day ,0.71 ± 0.12 and 0.25 ± 0.13 respectively. Similarly, the annual average value of Linke turbidity factor (LT) and visibility 1.97± 0.47 and 28.09 ± 21.08 km are found. Finally it is found that there is strong relation between Linke turbidity factor and meteorological parameters i.e. relative humidity, temperature, water content, ozone and rain fall.

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Author Biographies

Indra B. Karki, Nepal Nepal Open University

 Dean 

Narayan P. Chapagain, Department of Physics, Amrit Campus, Tribhuan University

Professor

Khem N. Poudyal, Department of Applied Sciences ,IOE Pulchowk Campus ,Tribhuan University

Professor

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Published

2019-12-22

How to Cite

Shrestha, P. M., Karki, I. B., Chapagain, N. P., & Poudyal, K. N. (2019). Study of Linke Turbidity Factor on Solar Radiation over Jumla. Molung Educational Frontier, 9, 141–149. https://doi.org/10.3126/mef.v9i0.33595

Issue

Section

Research Articles