探索印度不同地理区域的辐射强迫对气溶胶光学特性的敏感性

IF 2.9 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Sneha Gautam, A Blessy, Pullanikkat Abhilash, Annu Yadav, Aldin Justin
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引用次数: 0

摘要

气候变化仍然是一个紧迫的全球问题,而气溶胶则是对地球气候动态产生重大影响的关键因素。气溶胶是悬浮在大气中的微小固体或液体颗粒,大小从纳米到几十微米不等。气溶胶对大气温度的影响是双重的,根据气溶胶类型的不同,会产生升温或降温效应。因此,当务之急是全面掌握气溶胶的复杂性及其固有特征。在本研究中,我们将注意力集中在气溶胶关键光学特性的研究上,特别是不对称参数(ASY)、气溶胶光学深度(AOD)和单散射反照率(SSA)。我们的研究深入探讨了这些气溶胶光学特性在印度甘地学院、坎普尔、斋浦尔和浦那四个不同地点的时空分布模式。这些选定地点涵盖了气溶胶的主要分类,包括人为来源和自然来源。在这些可用气溶胶光学特性的范围内,我们努力量化直接气溶胶辐射强迫(DARF)。为了进一步提高研究结果的严谨性,我们采用了控制变量法来评估与气溶胶光学特性相关的直接气溶胶辐射强迫的不确定性。我们的结果表明,不对称参数(ASY)对 DARF 的影响相对较小,而单散射反照率(SSA)和气溶胶光学深度(AOD)的影响则很大。此外,这种影响取决于具体的气溶胶类型,并表现出明显的区域差异,因为不同的参数会根据各自的地理环境产生不同的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Exploring radiative forcing sensitivity to aerosol optical properties across varied geographical regions in India

Exploring radiative forcing sensitivity to aerosol optical properties across varied geographical regions in India

Climate change remains a pressing global concern, with aerosols emerging as pivotal elements that wield substantial influence over the Earth’s climate dynamics. Aerosols, minuscule solid or liquid particles suspended in the atmosphere, exhibit a size range spanning from nanometers to tens of micrometers. Their impact on the atmosphere’s temperature is dual, engendering either warming or cooling effects, contingent upon the aerosol type. Consequently, it becomes imperative to comprehensively grasp the intricacies of aerosols and their inherent characteristics. In this study, we center our attention on the investigation of key aerosol optical properties, specifically the asymmetry parameter (ASY), aerosol optical depth (AOD), and single scattering albedo (SSA). Our research delves into the spatio-temporal distribution patterns of these aerosol optical properties across four distinct locations within India, namely Gandhi College, Kanpur, Jaipur, and Pune. These selected sites encompass the major classifications of aerosols, encompassing both anthropogenic and natural sources. Within the purview of these available aerosol optical properties, we endeavor to quantify the direct aerosol radiative forcing (DARF). To further enhance the rigor of our findings, we employ the control variable method to assess the uncertainty associated with direct aerosol radiative forcing concerning aerosol optical properties. Our results underscore that the asymmetry parameter (ASY) exerts a relatively minor influence on DARF, while single scattering albedo (SSA) and aerosol optical depth (AOD) wield substantial impact. Furthermore, this influence is contingent upon the specific aerosol type and exhibits notable regional variations, as different parameters manifest diverse effects contingent upon their respective geographical contexts.

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来源期刊
Air Quality Atmosphere and Health
Air Quality Atmosphere and Health ENVIRONMENTAL SCIENCES-
CiteScore
8.80
自引率
2.00%
发文量
146
审稿时长
>12 weeks
期刊介绍: Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health. It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes. International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals. Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements. This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.
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