Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Permafrost Becomes Insecure

29.03.2004


Russian scientists have discovered territories in the North that will run the greatest risk in the course of permafrost thawing, they have also calculated degree of risk for towns, industrial facilities and main lines.



Global climate warming makes attacks on permafrost. Accurate forecast is very important as the permafrost ground status would drive the future of all northern towns and industrial facilities. Researchers of the State Hydrological Institute (St. Petersburg) have undertaken such a forecast. Their effort resulted in prognostic maps, where the higher risk zone was determined along the Arctic coast and degree of risk for towns, main lines, pipelines and other infrastructures of the North were calculated.

The researchers used several climate change scenarios based on five mathematical models to forecast the spread area, temperature and depth of seasonal permafrost thawing through. According to their estimates, reduction of the entire permafrost area in the northern hemisphere will make 10% to 18% by 2030, 15% to 25% by 2050 and 25% to 50% by 2080. The depth of seasonal thawing through will increase heterogeneously both in terms of timescale and space. In the next thirty years to come, the changes will be relatively insignificant but by mid-century the depth of thawing through will increase by 15% to 25% and more, and by 2080 - by 30% to 50%. Therefore, it can be expected by the end of the 21st century that the permafrost zone will reduce by half, and the depth of seasonal thawing through will double.


It is not enough to calculate the extent the permafrost reduction, the most important is to determine the affect on its bearing strength. The “cryopedology risk index” serves this purpose, the index being computational by definite formula.

Having applied this formula to the northern territories of Russia, the scientists discovered that the high cryopedology risk zone covers all of the Arctic coast, where extensive coast erosion will take place. The high risk zone includes towns and settlements - Salekhard, Igarka, Dudinka, Tiksi in Russia, and Barrow and Inuvik in the USA, pipelines and installations of the gas production system Nadym-Pur-Taz in the North-West of Siberia. Yakutsk, Norilsk, Vorkuta, major part of Trans-Siberian and Baikal-Amur main lines run moderate risk. Natural and man-caused calamities can be prevented in these locations only through purposeful investments aimed to support infrastructures of the North.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

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...

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

'On-off switch' brings researchers a step closer to potential HIV vaccine

30.03.2017 | Health and Medicine

Penn studies find promise for innovations in liquid biopsies

30.03.2017 | Health and Medicine

An LED-based device for imaging radiation induced skin damage

30.03.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>