Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Upward trend of temperatures in the Iberian Peninsula

26.02.2007
Matthias Staudt has carried out an exhaustive work to homogenize temperature records of the Iberian Peninsula in the last hundred and thirty years.

The curious thing is the rise in minimum temperatures. Tablelands are the most representative area from a climatic point of view; if we take them as a reference, according to Staudt´s systematized data, Spanish minimum temperatures have risen about a degree from the first thirty years of the XX century to the last three decades.

The rise in maximum temperatures is lower and more irregular than that of the minimums, which have risen in all the regions of the national climate map, especially in the Valleys of the River Ebro and Guadalquivir, a degree and a half. Minimums of cities like Sevilla have risen 2 centigrade degrees in the last years. If we correct the so-called urban effect, typical of big and medium cities, the rise is of 1.6 degrees. In the Mediterranean and Cantabrian coast, warming is lower.

According to experts´ data, the average temperature of the planet raised considerably in the last century. Specifically, from 1880 to 2000, an average of 0.7 centigrade degrees. “The trend found in the Iberian Peninsula agrees with the global one (at a planetary level) and can be observed above all in the last thirty years”, points out María Jesús Esteban Parra, director of the thesis together with Yolanda Castro Díez. To come to this conclusion, the scientists of the research group Atmosphere Physics of the UGR (Universidad de Granada [http://www.ugr.es]) have systematized the quality of the data of the Natioanl Institute of Meteorology, since the 1970s.

After an introduction to the climatic variability of the Peninsula, forty-five Spanish original time series have been catalogued monthly averaged. It is not an easy job. “Sometimes, weather stations which take temperatures move or measures get affected by different non-meteorological factors, like urbanization. If these changes are not taken into account and corrected, data can not be compared to the previous ones”, explains doctor Staudt.

Therefore, “this work is essential because if we do not homogenize the data, we can not come to any conclusion about climate change”, concludes Professor Castro. To go deeply into climatology, they do research into variables like sunny hours, cloudiness and their connection with temperatures. The typical global difference in the behaviour of maximum and minimum temperatures has disappeared since 1970. Thus, in the last thirty years, both groups clearly rise whereas cloudiness decreases, which may mean an increase of the subtropical nature of the peninsular climate.

Antonio Marín Ruiz | alfa
Further information:
http://www.ugr.es
http://prensa.ugr.es/prensa/research/index.php

More articles from Earth Sciences:

nachricht NASA examines Peru's deadly rainfall
24.03.2017 | NASA/Goddard Space Flight Center

nachricht Steep rise of the Bernese Alps
24.03.2017 | Universität Bern

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>