1 / 1

Objective Explore the link between aerosols and the Indian summer monsoon rainfall

Mighty Indian Monsoon Responds to the Deserts’ Breath. North Africa/West Asia Dust. Objective Explore the link between aerosols and the Indian summer monsoon rainfall Explain such a link using both observations and climate model simulations Approach

clio
Download Presentation

Objective Explore the link between aerosols and the Indian summer monsoon rainfall

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mighty Indian Monsoon Responds to the Deserts’ Breath North Africa/West Asia Dust • Objective • Explore the link between aerosols and the Indian summer monsoon rainfall • Explain such a link using both observations and climate model simulations • Approach • Use satellite measurements to find a correlation between Indian monsoon rainfall and aerosol variations over the Arabian Sea, North Africa and West Asia • Confirm that a similar relationship occurs in a global climate model (CAM5) • Propose a mechanism to connect variations in naturally occurring dust aerosols to the west of India with Indian monsoon rainfall on short (~1 week) timescales • Perform simulation experiments that demonstrate why and how the mechanism operates Monsoon Rainfall The hypothesis explains the interaction between remote dust aerosols residing to the west of India affecting monsoon rainfall on short time scales India Moisture • Impact • A simple analysis indicates a distinct, observable relationship between dust aerosol and Indian summer monsoon rainfall with variations that are strongly correlated on timescales of about a week • Although there has been a lot of recent attention on the role of anthropogenic aerosols on the monsoon, this study indicates that natural aerosol variations also play a role. Vinoj V, PJ Rasch, H Wang, J-H Yoon, P-L Ma, K Landu and B Singh. 2014. “Short-term Modulation of Indian Summer Monsoon Rainfall by West Asian Dust.”Nature Geoscience 7. DOI: 10.1038/NGEO2107.

More Related