Featured Research

from universities, journals, and other organizations

Changes seen in rainfall trends in March, June and October since 1945 in Spain

Date:
March 22, 2010
Source:
Plataforma SINC
Summary:
Scientists have produced data on monthly precipitation rates in the Iberian Peninsula. This has been used to analyse monthly rainfall trends between 1945 and 2005 in the Spanish part of the Iberian Peninsula.

Rain in Madrid.
Credit: Image courtesy of Plataforma SINC

An international team led by the University of Zaragoza (UNIZAR) has produced MOPREDAS, the most complete database to date on monthly precipitations in the Iberian Peninsula. This has been used to analyse monthly rainfall trends between 1945 and 2005 in the Spanish part of the Iberian Peninsula.

The aim of this study is "to respond to a request in the ministerial report about the impacts of climate change in Spain, which highlights the lack of detailed studies into rainfall in Spain or a database that covers the entire country," José Carlos González-Hidalgo, lead author of the study and a tenured professor of Physical Geography in the Faculty of Geography at UNIZAR, said.

The study, which has just been published online in the International Journal of Climatology, shows that March, June and October are the months that show significant changes in precipitation trends across large areas of the Iberian Peninsula.

Precipitation has declined in quantity in March and June (above all in the centre, south and west of the country), but over large parts of the country in general, affecting more than 60% of the peninsula in March.

"We can't say categorically that annual precipitation has increased or decreased overall, but there are marked variations in different areas," says the geographer.

For the period between October and March, rainfall has increased in October while there has been a widespread decrease in March, "which is important information for the management of water resources."

Reconstruction of precipitation series over more than half a century

The scientists reconstructed and analysed 2,670 monthly precipitation series (average density 1/200 km2) over the peninsula between December 1945 and November 2005. To do this, they used the computerised documentary sources held by the Spanish Meteorological Agency (AEMet) in order to create details for different areas, "which had not been done until now," says González-Hidalgo, adding that "we were able to carry out this work because the AEMet archives are the most useful of sources for research."

In addition, the new database also includes information from above the 1000-1500 metre altitude range, "which had barely been analysed up until now," the researcher stresses.

The results of the latest study "give a much more detailed image of precipitation behaviour over the second half of the century in peninsula Spain," the scientist says.

The case of the Mediterranean coast

In previous studies, the group of scientists had analysed the same issue between 1950 and 2000 along the Mediterranean coast, covering the river basins of the eastern Pyrenees, the Ebro, Júcar, Segura rivers and eastern Andalusia, "an area in which water resources are placed under great consumption pressure and there is great social debate about the best way of managing them," points out González-Hidalgo.

According to these preliminary studies, published in 2009 in the International Journal of Climatology, "the only widespread and significant reduction in precipitation along the Mediterranean could be seen in March," concludes the researcher.


Story Source:

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


Journal Reference:

  1. González-Hidalgo et al. A new tool for monthly precipitation analysis in Spain: MOPREDAS database (monthly precipitation trends December 1945-November 2005). International Journal of Climatology, 2010 DOI: 10.1002/joc.2115

Cite This Page:

Plataforma SINC. "Changes seen in rainfall trends in March, June and October since 1945 in Spain." ScienceDaily. ScienceDaily, 22 March 2010. <www.sciencedaily.com/releases/2010/03/100322083857.htm>.
Plataforma SINC. (2010, March 22). Changes seen in rainfall trends in March, June and October since 1945 in Spain. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2010/03/100322083857.htm
Plataforma SINC. "Changes seen in rainfall trends in March, June and October since 1945 in Spain." ScienceDaily. www.sciencedaily.com/releases/2010/03/100322083857.htm (accessed July 24, 2014).

Share This




More Earth & Climate News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) — Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Observation Boat to Protect Cetaceans During Ship Transfer

Observation Boat to Protect Cetaceans During Ship Transfer

AFP (July 22, 2014) — As part of the 14-ship convoy that will accompany the Costa Concordia from the port of Giglio to the port of Genoa, there will be a boat carrying experts to look out for dolphins and whales from crossing the path of the Concordia. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
New Orleans Plans to Recycle Cigarette Butts

New Orleans Plans to Recycle Cigarette Butts

AP (July 21, 2014) — New Orleans is the first U.S. city to participate in a large-scale recycling effort for cigarette butts. The city is rolling out dozens of containers for smokers to use when they discard their butts. (July 21) Video provided by AP
Powered by NewsLook.com
Shark Sightings a Big Catch for Cape Tourism

Shark Sightings a Big Catch for Cape Tourism

AP (July 21, 2014) — A rise in shark sightings along the shores of Chatham, Massachusetts is driving a surge of eager vacationers to the beach town looking to catch a glimpse of a great white. (July 21) 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