Featured Research

from universities, journals, and other organizations

Global warming increases flood risk in mountain areas

Date:
January 22, 2010
Source:
American Geophysical Union
Summary:
The world's mountainous regions are home to about 800 million people and the source of some of the world's major rivers. In these regions, runoff is strongly affected by temperature. This suggests that flooding could be quite sensitive to global warming, but there has been some lack of scientific consensus on the effects of temperature variations on floods.

The world's mountainous regions are home to about 800 million people and the source of some of the world's major rivers. In these regions, runoff is strongly affected by temperature. This suggests that flooding could be quite sensitive to global warming, but there has been some lack of scientific consensus on the effects of temperature variations on floods.

Allamano et al. show that global warming does increase flood risk significantly. The authors analyzed runoff data recorded by 27 stations in the Swiss Alps and used a simple probabilistic model to study how flood risk varies with temperature, precipitation, and elevation in mountainous regions.

The researchers found that large floods have occurred more frequently in recent years than in the past, and they predict that global warming will result in such floods occurring even more often in the future.

In particular, they found that if global temperatures increase by 2 degrees Celsius (3.6 degrees Fahrenheit), then large floods that occurred about once every 100 years could occur up to 5 times more often.

The research appears in the journal Geophysical Research Letters.

Authors include P. Allamano, P. Claps, and F. Laio, Dipartimento di Idraulica, Trasporti ed Infrastrutture Civili, Politecnico di Torino.


Story Source:

The above story is based on materials provided by American Geophysical Union. Note: Materials may be edited for content and length.


Journal Reference:

  1. Allamano et al. Global warming increases flood risk in mountainous areas. Geophysical Research Letters, 2009; 36 (24): L24404 DOI: 10.1029/2009GL041395

Cite This Page:

American Geophysical Union. "Global warming increases flood risk in mountain areas." ScienceDaily. ScienceDaily, 22 January 2010. <www.sciencedaily.com/releases/2010/01/100121164054.htm>.
American Geophysical Union. (2010, January 22). Global warming increases flood risk in mountain areas. ScienceDaily. Retrieved September 20, 2014 from www.sciencedaily.com/releases/2010/01/100121164054.htm
American Geophysical Union. "Global warming increases flood risk in mountain areas." ScienceDaily. www.sciencedaily.com/releases/2010/01/100121164054.htm (accessed September 20, 2014).

Share This



More Earth & Climate News

Saturday, September 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Wildfires in CA Burn Forest Asunder

Raw: Wildfires in CA Burn Forest Asunder

AP (Sep. 18, 2014) An out-of-control Northern California wildfire has nearly 2,800 people from their homes as it continues to grow, authorities said Thursday. Authorities said a man has been arrested on suspicion of arson for starting the fire on Saturday. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Man Floats for 31 Hours in Gulf Waters

Man Floats for 31 Hours in Gulf Waters

AP (Sep. 16, 2014) A Texas man is lucky to be alive after he and three others floated for more than a day in the Gulf of Mexico when their boat sank during a fishing trip. (Sept. 16) Video provided by AP
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:
from the past week

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