The world's freshwater is stored and transported by a range of natural beauty and formations – stream. River sand bogs, aquifers, glaciers, icebergs, clouds and mists of plateau and course work and sources, but important to the understanding of freshwater as rock glaciers Geographers and hydrologists to distinguish these formations covers the icy debris from ice glaciers.
Collaborative research project, University of Waterloo in Canada and Universidad Mayor in Chile have been checking how to identify the precise rock glaciers joint research, feeding into efforts to broadly in Chile and other. Drawing on the expertise of Canada in physical geography and computer modelling and Chilean expertise in remote sensing.
Identification of rock glaciers provides technical information that is better, the Chilean Government scientists responsible for natural resource management and environmental assessment in the dry Andes as well as NGOs environmental. This step is important especially with the 2008 Chilean law require environmental assessments of development projects in areas such as mountain – mining projects. Disposal of tailings mining and road construction. Such activities caused friction ?????? well as environmentalists and mining wangborisat.
But the long-term spillover benefits that may occur with other countries with rock glaciers of Argentina and other Central Asian regions. It is important too, said geographer, University of Waterloo Alex Brenning Argentina has a larger total area of rock glaciers and there are laws in the relevant glacier. Too The new law enforcement must have valid data on the scope of rock glaciers and ice content.
Dr. Brenning description aspect of wild rock glaciers: "do you see any of all the ice on the ground, this means that there are research for most rock glaciers differs from what is used in research. Glaciological ... so don't rock glaciers are often included in inventory, glacier. Even now, there is very little knowledge about distribution in several mountain areas of the world, except perhaps Alps and Rocky Mountains.
What masks ice of gravel river is called "active layer" of rock is usually three to five meters thick image formation resembles the usual non-glacial terrain or permafrost, ranging from a major rock glaciers in the Andes, dry, especially through the melting season. They need to be protected, such as other water sources, but to do so. Their number, size and location must be spelled out.
This is the origin of the work of Marco Peña in Mr. Peña is an expert in using remote sensing to the Center for studies in natural resources (OTERRA) Universidad Mayor in Santiago he is monitoring technique that can distinguish between rock glaciers, and other land formations in two ways customize. He notes there is an analysis of the thermal inertia and hyperspectral analysis on drawing pictures, some satellite.
Method of thermal inertia photographs taken when the mountain area has reached maximum temperatures and low on them "Inertia cooling with a response of a material change in temperature. Describes Mr. Peña "calculate thermal inertia we can find the difference between rock glaciers and surrounding areas of their.
Although rock glacier material can be the same material surrounding the two landforms temperature varies from Las sia mega consists of ice as stone. He said, so they have outstanding thermal and radiative properties that can be used to identify them.
Hyperspectral analysis based on images taken by the NASA's international music EO-1satellite that stores information about the world since 1999, Mr. Peña hypothesizes that rock glaciers spectrally different from the surrounding material. The key is to. Find story telling signs of rock glaciers in this case the set of elements on the surface of the target area is imaged Hyperspectral analysis shows more about texture than other remote sensing techniques because the spectral resolution is available in each pixel of the image.
"We want to demonstrate to the remote sensing community that has a close relationship between remote sensing and rock glaciers if appropriate product remotely sensed. combined with the data in the field, said Mr. Peña to end. Researchers staged one-day seminars on topics that Mayor Universidad years ago. Gather students 27 researchers University mining industry employees, consultants and staff from the national water authority of Chile.
Dr. Brenning stresses that global warming could have a major impact on rock glaciers in several regions and therefore the world supply of freshwater in the form of ice. Inventory because of the importance of creating a rock glacier inventory – now, not only to support the evaluation of environmental impact. For specific projects, but also for long-term knowledge base needed to protect important water sources.
Glacier science in the news recently as Dr. Brenning was interviewed by Chilean and international media on the importance of rock glaciers due to his expertise. He was also asked to join the science group head unit to protect the environment of Chile in implementation of national policy, glacier. He planned to spend part of working in Chile 2011.
By the International Development Research Centre (IDRC).
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