Wavelet Analysis of Atmospheric Ozone and Ultraviolet Radiation on Solar Cycle-24 over Lumbini, Nepal

A significant peak in atmospheric ozone levels, reaching a power density of 35,000 DU², was observed over Lumbini, Nepal, from late 2010 to late 2011. This finding underscores the importance of long-term analysis in understanding atmospheric dynamics in regions with similar geographical and climatic conditions. The study analyzed data on clearness index (KT), total ozone column (TOC), ultraviolet A (UVA), and ultraviolet B radiation (UVB) over an 11-year period (2008–2018) during Solar Cycle-24, using satellite data from NASA's Ozone Monitoring Instrument (OMI). The research employed continuous wavelet transform (CWT) to examine temporal variations in these parameters, providing insights into their long-term trends and interactions. The study highlights the need for extended monitoring to comprehend atmospheric behavior in highly polluted regions like Lumbini.

Shrestha, P. M., Gupta, S. P., Joshi, U., Schmutzler, M., Aryal, R., Tiwari, B. R., Adhikari, B., Chapagain, N. P., Karki, I. B., & Poudyal, K. N. (2024). Wavelet Analysis of Atmospheric Ozone and Ultraviolet Radiation on Solar Cycle-24 over Lumbini, Nepal. Atmosphere, 15(4), 509. https://doi.org/10.3390/atmos15040509