Editorial: The Asian Monsoon

Wang, Lin; Chen, Haishan; Chowdary, Jasti S.; Ha, Kyung‐Ja; Kajikawa, Yoshiyuki; Martin, Gill

doi:10.3389/feart.2021.748811

Cited by 2 publications

(1 citation statement)

References 38 publications

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“…JJAS is generally defined as the monsoon season in India because the major chunk of the summer monsoon rainfall amount is obtained during this period of the year (Sahu et al, 2020;Saini and Sahu, 2021). India has a huge dependence on the behavior of the monsoon system from its onset to withdrawal (Prasad and Hayashi, 2005;Wang et al, 2021). It is also an agriculturally dominant country with large size of its population engaged in agriculture-based activities for livelihood and food security (Pingali et al, 2019;Kaur et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Unraveling Intricacies of Monsoon Attributes in Homogenous Monsoon Regions of India

et al. 2022

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India observes the summer monsoon in June–July–August–September (JJAS) season, and the livelihood security of a huge population depends on it. The impact of the monsoon onset timing, length of monsoon season, rainfall amount, and related extreme events is huge on the Indian economy. Therefore, understanding the inherent intricacies needed a detailed investigation. In five homogenous monsoon regions of India, the trend of monsoon onset and the length of monsoon season are examined. The association between 1) monsoon onset ∼ rainfall amount, 2) length of monsoon season ∼ rainfall amount, and 3) monsoon onset ∼ length of monsoon season is investigated. Subsequently, the behavior of rainfall and extreme excess days in the ±1 standard deviation (SD) length of monsoon season is also examined in detail. The trend for monsoon onset shows late onset in all the homogenous monsoon regions except the northeast region. The length of monsoon season is found increasing significantly with high magnitude in west central and northwest regions. A significantly strong negative correlation (∼−0.6) for monsoon onset timing ∼ length of monsoon season is observed. Therefore, the change in rainfall anomaly, extreme excess days, and rainy days is done concerning the length of the monsoon season. In the cases of the −1 SD (+1 SD) length of monsoon season, rainfall anomaly and extreme excess days are low (high) in most parts of the homogenous monsoon regions. Extreme excess days showed a significant association with rainy days, which indicates a high possibility of rainy days converting into extreme excess days. However, the increase in extreme excess days in the +1 SD length of monsoon season is limited to a great extent in JJAS and June only. Morlet wavelet power spectrum shows the delay (advance) of power in −1SD (+1 SD) length of monsoon season.

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Section: Introductionmentioning

confidence: 99%

Unraveling Intricacies of Monsoon Attributes in Homogenous Monsoon Regions of India

et al. 2022

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The key role of atmospheric absorption in the Asian summer monsoon response to dust emissions in CMIP6 models

Zhao,

Wilcox,

Ryder

2024

Atmos. Chem. Phys.

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Abstract. We investigate the Asian summer monsoon (ASM) response to global dust emissions in the Coupled Model Intercomparison Project Phase 6 (CMIP6) models, which is the first CMIP to include an experiment with a doubling of global dust emissions relative to their preindustrial levels. Thus, for the first time, the inbuilt influence of dust on climate across a range of climate models being used to evaluate and predict Earth's climate can be quantified. We find that dust emissions cause a strong atmospheric heating over Asia that leads to a pronounced energy imbalance. This results in an enhanced Indian summer monsoon (ISM) and a southward shift of the western Pacific Intertropical Convergence Zone (ITCZ), consistent across models, with the strength of the ISM enhancement increasing with the magnitude of atmospheric dust shortwave absorption, driven by dust optical depth changes. However, the east Asian summer monsoon response shows large uncertainties across models, arising from the diversity in models' simulated dust emissions and in the dynamical response to these changes. Our results demonstrate the central role of dust absorption in influencing the ASM and the importance of accurate dust simulations for constraining the ASM and the ITCZ in climate models.

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Editorial: The Asian Monsoon

Cited by 2 publications

References 38 publications

Unraveling Intricacies of Monsoon Attributes in Homogenous Monsoon Regions of India

Unraveling Intricacies of Monsoon Attributes in Homogenous Monsoon Regions of India

The key role of atmospheric absorption in the Asian summer monsoon response to dust emissions in CMIP6 models

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