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ORIGINAL RESEARCH article

Front. Earth Sci.
Sec. Atmospheric Science
Volume 12 - 2024 | doi: 10.3389/feart.2024.1452075
This article is part of the Research Topic Atmosphere – Cryosphere Interaction in the Arctic, at High Latitudes and Mountains with Focus on Transport, Deposition and Effects of Dust, Black Carbon, and other Aerosols - Volume II View all 4 articles

Time Series Trends and Correlations of Aerosol Optical Depth and Cloud Parameters over

Provisionally accepted
Getnet Yirga Getnet Yirga 1*Demelash Fekrie Demelash Fekrie 2,3Tsegaye Menberu Tsegaye Menberu 4Yenesew Workineh Yenesew Workineh 5
  • 1 Department of physcs, Bahir Dar University, Bahir Dar, Ethiopia
  • 2 Bahir Dar University, Bahir Dar, Ethiopia
  • 3 Bahir University, college of science, Bhir Dar, Ethiopia
  • 4 wolkite University, wolkite, Ethiopia
  • 5 mekdala amba university, Tulu Awuliya, Ethiopia

The final, formatted version of the article will be published soon.

    Aerosols are microscopic liquid or solid particles which enter the atmosphere through natural and man-made processes. Time series trends and correlations of aerosol optical depth and cloud parameters over Addis Ababa, have become the subject of scientific research because of the importance of clouds in controlling climate. In this study, we have examined the temporal variations (time series analysis) in aerosol particles over Addis Ababa and the impact of these variations on various optical properties of clouds using Moderate Resolution Imaging Spectroradiometer (MODIS) data from January 2003 to December 2018. The maximum aerosol optical depth (AOD) was found at summer period with minimum values in winter. During summer air temperature is high leads to hold abundant atmospheric water vapor facilitated the hygroscopic growth of aerosols. We then analyzed the relationships between AOD and other cloud parameters, namely water vapor (WV), cloud fraction (CF), cloud top temperature (CTT) and cloud top pressure (CTP) to provide a better understanding of aerosol-cloud interaction. The correlation between AOD and cloud fraction (CF), water vapor (WV) was positive for Addis Ababa, while negative correlation with cloud top temperature (CTT) and cloud top pressure (CTP).

    Keywords: MODIS, AOD, CF, CTP, CTT and WV

    Received: 20 Jun 2024; Accepted: 14 Oct 2024.

    Copyright: © 2024 Yirga, Fekrie, Menberu and Workineh. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Getnet Yirga, Department of physcs, Bahir Dar University, Bahir Dar, Ethiopia

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.