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@article{175701,
        author = {Subhashini K B and Danie blessly M and Ramesh Pandian S and Rajalakshmi S},
        title = {Spatio-temporal analysis of aerosol optical depth (AOD) during South West monsoon over Kerala using QGIS},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {11},
        number = {11},
        pages = {3743-3748},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=175701},
        abstract = {The Southwest monsoon plays a crucial role in shaping Kerala’s climate, with aerosol optical depth (AOD) being a significant factor influencing health risk factor (lung respiratory disease) and poor air quality. Satellite-derived AOD data from MODIS Aqua and Aeronet station positioned in Kerala were analysed for the period 2014-2023. Our objectives were to investigate AOD patterns and variability during the Southwest Monsoon, analyse the spatial distribution of AOD, identify potential sources of aerosols, and evaluate trend variations during the study period. The results reveal significant spatial and temporal variations in AOD across Kerala, with high AOD values observed during the monsoon months. The study also identifies areas with high AOD hotspots (Kannur, Kasaragod, Kozhikode) and potential aerosol sources. It was observed from the study that; the aerosol deposition is found to be very high during the month of June since the starting of the decade for all districts of Kerala. It deposition rate is identified to be drastically shifted to the month of July towards the mid of the decade and again it attains the high level of AOD deposition over june month at the end of the decade. This study also revealed that the major source of AOD is due to the high deposition of sea salt in the coastal regions of Kerala which has made the AOD values to be peaked to 0.7.},
        keywords = {Southwest monsoon, MODIS Aqua, Spatio-temporal AOD patterns, high AOD hotspots, AOD Kerala.},
        month = {April},
        }