LONG-TERM MONITORING OF NOX AND O₃ IN THE LOWER THERMOSPHERE
DOI:
https://doi.org/10.71465/jgs33Keywords:
Thermospheric Chemistry, Nitrogen Oxides (NOx), Ozone (O₃) Depletion, Space Weather ImpactsAbstract
The dynamics of nitrogen oxides (NOx) and ozone (O₃) in the lower thermosphere (90–150 km) play a critical role in atmospheric chemistry, radiative balance, and energy transfer processes. This study presents a long-term analysis of NOx and O₃ concentrations based on satellite and ground-based remote sensing data collected from 2005 to 2023 over South Asia, with a focus on Pakistan. Observations reveal pronounced seasonal variability, a decadal increase in NOx during solar minima, and episodic ozone depletion events linked to geomagnetic disturbances. The findings provide key insights for understanding thermospheric photochemistry and the implications of space weather on mesospheric-lower thermospheric coupling.
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Copyright (c) 2025 Dr. Muneeb Akhtar (Author)
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All articles published in the Journal of Geospace Science (JOGSS) are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0). This license allows others to share, copy, distribute, and adapt the work, provided proper attribution is given to the original author(s) and source.