Potential impacts of aerosol-land-atmosphere interactions on the Indian monsoonal rainfall characteristics

Dev Niyogi; Hsin I. Chang; Fei Chen; Lianhong Gu; Anil Kumar; Surabi Menon; Roger A. Pielke

doi:10.1007/s11069-006-9085-y

Potential impacts of aerosol-land-atmosphere interactions on the Indian monsoonal rainfall characteristics

Dev Niyogi, Hsin I. Chang, Fei Chen, Lianhong Gu, Anil Kumar, Surabi Menon, Roger A. Pielke

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63 Scopus citations

Abstract

Aerosols can affect the cloud-radiation feedback and the precipitation over the Indian monsoon region. In this paper, we propose that another pathway by which aerosols can modulate the multi-scale aspect of Indian monsoons is by altering the land-atmosphere interactions. The nonlinear feedbacks due to aerosol/diffuse radiation on coupled interactions over the Indian monsoon region are studied by: (1) reviewing recent field measurements and modeling studies, (2) analyzing the MODIS and AERONET aerosol optical depth datasets, and (3) diagnosing the results from sensitivity experiments using a mesoscale modeling system. The results of this study suggest that the large magnitude of aerosol loading and its impact on land-atmosphere interactions can significantly influence the mesoscale monsoonal characteristics in the Indo-Ganges Basin.

Original language	English
Pages (from-to)	345-359
Number of pages	15
Journal	Natural Hazards
Volume	42
Issue number	2
DOIs	https://doi.org/10.1007/s11069-006-9085-y
State	Published - Aug 2007

Keywords

Aerosols
Asian monsoon
Land use
Land-surface feedback
Precipitation
Radiation feedback

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10.1007/s11069-006-9085-y

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title = "Potential impacts of aerosol-land-atmosphere interactions on the Indian monsoonal rainfall characteristics",

abstract = "Aerosols can affect the cloud-radiation feedback and the precipitation over the Indian monsoon region. In this paper, we propose that another pathway by which aerosols can modulate the multi-scale aspect of Indian monsoons is by altering the land-atmosphere interactions. The nonlinear feedbacks due to aerosol/diffuse radiation on coupled interactions over the Indian monsoon region are studied by: (1) reviewing recent field measurements and modeling studies, (2) analyzing the MODIS and AERONET aerosol optical depth datasets, and (3) diagnosing the results from sensitivity experiments using a mesoscale modeling system. The results of this study suggest that the large magnitude of aerosol loading and its impact on land-atmosphere interactions can significantly influence the mesoscale monsoonal characteristics in the Indo-Ganges Basin.",

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AU - Niyogi, Dev

AU - Chang, Hsin I.

AU - Chen, Fei

AU - Gu, Lianhong

AU - Kumar, Anil

AU - Menon, Surabi

AU - Pielke, Roger A.

PY - 2007/8

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N2 - Aerosols can affect the cloud-radiation feedback and the precipitation over the Indian monsoon region. In this paper, we propose that another pathway by which aerosols can modulate the multi-scale aspect of Indian monsoons is by altering the land-atmosphere interactions. The nonlinear feedbacks due to aerosol/diffuse radiation on coupled interactions over the Indian monsoon region are studied by: (1) reviewing recent field measurements and modeling studies, (2) analyzing the MODIS and AERONET aerosol optical depth datasets, and (3) diagnosing the results from sensitivity experiments using a mesoscale modeling system. The results of this study suggest that the large magnitude of aerosol loading and its impact on land-atmosphere interactions can significantly influence the mesoscale monsoonal characteristics in the Indo-Ganges Basin.

AB - Aerosols can affect the cloud-radiation feedback and the precipitation over the Indian monsoon region. In this paper, we propose that another pathway by which aerosols can modulate the multi-scale aspect of Indian monsoons is by altering the land-atmosphere interactions. The nonlinear feedbacks due to aerosol/diffuse radiation on coupled interactions over the Indian monsoon region are studied by: (1) reviewing recent field measurements and modeling studies, (2) analyzing the MODIS and AERONET aerosol optical depth datasets, and (3) diagnosing the results from sensitivity experiments using a mesoscale modeling system. The results of this study suggest that the large magnitude of aerosol loading and its impact on land-atmosphere interactions can significantly influence the mesoscale monsoonal characteristics in the Indo-Ganges Basin.

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KW - Asian monsoon

KW - Land use

KW - Land-surface feedback

KW - Precipitation

KW - Radiation feedback

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Potential impacts of aerosol-land-atmosphere interactions on the Indian monsoonal rainfall characteristics

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Keywords

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