Featured Research

from universities, journals, and other organizations

Indian monsoon failure more frequent with global warming, research suggests

Date:
November 5, 2012
Source:
Institute of Physics
Summary:
Global warming could cause frequent and severe failures of the Indian summer monsoon in the next two centuries, new research suggests.

India's economy relies heavily on the monsoon season to bring fresh water to the farmlands.
Credit: © V.R.Murralinath / Fotolia

Global warming could cause frequent and severe failures of the Indian summer monsoon in the next two centuries, new research suggests.

Related Articles


The effects of these unprecedented changes would be extremely detrimental to India's economy which relies heavily on the monsoon season to bring fresh water to the farmlands.

The findings have been published November 6, in IOP Publishing's journal Environmental Research Letters, by researchers at the Potsdam Institute for Climate Impact Research and Potsdam University.

They found that as we move towards the end of the 21st, and into the 22nd, century, increasing temperatures and a change in strength of the Pacific Walker circulation in spring could cause more frequent and severe changes in monsoon rainfall.

The Walker circulation usually brings areas of high pressure to the western Indian Ocean but, in years when El Niño occurs, this pattern gets shifted eastward, bringing high pressure over India and suppressing the monsoon, especially in spring when the monsoon begins to develop.

The researchers' simulations showed that as temperatures increase in the future, the Walker circulation, on average, brings more high pressure over India, even though the occurrence of El Niño doesn't increase.

These failures of the monsoon system -- defined in the study as a 40 to 70 per cent reduction in rainfall below normal levels -- were unprecedented in the researchers' observational record, which was taken from the India Meteorological Department and goes back to the 1870s.

The immediate effects of climate change on monsoon rainfall have already been observed by some researchers; however, the patterns of response in the coming decades are not uniform across different models and studies.

Lead author of the study, Jacob Schewe, said: "Our study points to the possibility of even more severe changes to monsoon rainfall caused by climatic shifts that may take place later this century and beyond."


Story Source:

The above story is based on materials provided by Institute of Physics. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jacob Schewe, Anders Levermann. A statistically predictive model for future monsoon failure in India. Environmental Research Letters, 2012; 7 (4): 044023 DOI: 10.1088/1748-9326/7/4/044023

Cite This Page:

Institute of Physics. "Indian monsoon failure more frequent with global warming, research suggests." ScienceDaily. ScienceDaily, 5 November 2012. <www.sciencedaily.com/releases/2012/11/121105200054.htm>.
Institute of Physics. (2012, November 5). Indian monsoon failure more frequent with global warming, research suggests. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2012/11/121105200054.htm
Institute of Physics. "Indian monsoon failure more frequent with global warming, research suggests." ScienceDaily. www.sciencedaily.com/releases/2012/11/121105200054.htm (accessed January 25, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Florida Might Legalize Black Bear Hunting

Florida Might Legalize Black Bear Hunting

Newsy (Jan. 24, 2015) — A string of black bear attacks has Florida officials considering lifting the ban on hunting the animals to control their population. Video provided by Newsy
Powered by NewsLook.com
Dramatic Footage Shows Coast Guard Rescue Off Scottish Coast

Dramatic Footage Shows Coast Guard Rescue Off Scottish Coast

Reuters - News Video Online (Jan. 23, 2015) — Footage just released by the UK Coast Guard shows a dramatic helicopter rescue off the Scottish coast, where five men were plucked to safety after their fishing boat sank on Saturday. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Stunning Wingsuit Proximity Flying in Norway

Stunning Wingsuit Proximity Flying in Norway

Rumble (Jan. 23, 2015) — A collection of amazing shots from flights made in the Aurland Valley in Norway. How incredible is that? Credit to &apos;BASEjumper&apos;. Video provided by Rumble
Powered by NewsLook.com
Senate Agrees Climate Change Is Happening, Just Not On Why

Senate Agrees Climate Change Is Happening, Just Not On Why

Newsy (Jan. 22, 2015) — The Senate voted to confirm climate change is real, but some still weren&apos;t on board with the idea that humans are causing it. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins