https://ojs.bbwpublisher.com/index.php/ssr/issue/feedScientific and Social Research2025-01-23T12:08:55+08:00ssrinfo@bbwpublisher.comOpen Journal Systems<p style="text-align: justify;"><em>Scientific and Social Research (SSR)</em> publishes papers devoted to quantitative social science research and methodology. The journal features articles that illustrate the use of quantitative methods to empirically test social science theory. The journal emphasizes research concerned with issues or methods that cut across traditional disciplinary lines. Special attention is given to methods that have been used by only one particular social science discipline, but that may have application to a broader range of areas with an ultimate goal of testing social science theory. </p> <p style="text-align: justify;">Its articles yield new insights into established practices, evaluate new techniques and research, examine current social problems, and bring serious critical analysis to bear on problems in the profession. Review chapters typically cover social processes, institutions and culture, organizations, political and economic sociology, stratification, demography, urban sociology, social policy, historical sociology, and major developments in sociology in other regions of the world. Major emphasis is placed on social policy and the solutions to serious human problems.</p>https://ojs.bbwpublisher.com/index.php/ssr/article/view/9368Spatiotemporal Distribution Characteristics of Global Coarse-Mode Aerosol Optical Depth from 2012 to 20212025-01-23T12:08:55+08:00Xingguang Piao2108570022085@stu.bucea.edu.cn<p>Aerosols, as suspended solid and liquid particles in the atmosphere, play a significant role in global climate change and environmental quality. This study utilizes global coarse-mode aerosol optical depth (CAOD) data from 2012 to 2021, derived through a deep learning model, to comprehensively analyze the spatiotemporal distribution characteristics of coarse-mode aerosols. The findings reveal that global CAOD values exhibit a fluctuating downward trend during the study period, with a more pronounced decline in the Northern Hemisphere, likely due to regional variations in climate change, desertification, and human activities. Spatially, regions such as North Africa, the Middle East, and parts of Asia show higher CAOD values, associated with desert dust activity and anthropogenic emissions, whereas regions like South America, Australia, and Antarctica have lower CAOD values, attributed to their cleaner atmospheric conditions and minimal human activity. The complex CAOD variations in the mid-latitudes of the Northern Hemisphere are influenced by climatic conditions, topographical features, and the distribution of human activities. This study provides critical data for understanding the role of coarse-mode aerosols in global climate change and highlights the importance of considering geographical differences in aerosol distribution in climate change research. The study offers a scientific basis for formulating environmental policies and interventions. Future research will further explore the specific contributions of aerosol sources and their interaction mechanisms with climate change.</p>2025-01-23T10:34:52+08:00Copyright (c) 2025 Author(s)