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Displaying items by tag: United States of America
Saturday, 30 December 2006 05:36
Ice and snow mass change of Arctic and Antarctic polar regions using GRACE satellite gravimetry
GRACE (Gravity Recovery and Climate Experiment) is the first geodetic mission dedicated to the measurement of the time-variations of the Earth’s gravity field, it enables the detection of water mass transfers.
The on-going GRACE mission (launched in 03/2002 for a nominal lifetime of 5 years; quasi-polar orbit) provides monthly maps of tiny spatio-temporal variations of gravity due to the redistributions of mass inside the surface fluid envelops of the Earth. These satellite measurements represent vertically-integrated gravity effects of water mass reservoirs (oceans, atmosphere, continental waters and ice sheets) and of the solid Earth that need to be unravelled.
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Saturday, 30 December 2006 05:04
Moved by the State
"Moved by the state" is an international, collaborative research activity addressing state-induced population movements in the circumpolar North in the 20th and 21st centuries. To that end, institutions from Canada, Finland, Greenland, Russia, and the U.S.A. will conduct research in Alaska, Canada, Greenland, and Russia from 2006-2010. Extensive anthropological fieldwork and demographic data collection and analysis will be used to track similarities and differences among selected case studies.
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Saturday, 30 December 2006 04:59
SALE-UNITED: Subglacial Antarctic Lake Environments
SALE United International Team for Exploration and Discovery;
Subglacial Antarctic Lake Environments (SALE): A Unifying Phenomenon in Antarctic Earth Science
Beneath Antarctica's ice sheets, water has slowly accumulated over millenia pooling in catchment basins within the continental bedrock. Antarctic subglacial environments are natural macrocosms that, in some instances, trace their origins to more than 35 million years before present, when the continent became encased in ice. Life, especially microbial life, has successfully radiated into most aquatic habitats on Earth. There is little reason to doubt that subglacial environments are exempt from this process.The exploration and study of subglacial environments provides an unparalleled opportunity to advance our understanding of how the expression of life, the environment, climate evolution, and planetary history have combined to produce the world as we know it today.
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Saturday, 30 December 2006 04:53
I-TASC: Interpolar Transnational Art Science Constellation
ITASC is a decentralized network of individuals and organisations working collaboratively in the fields of art, engineering and science on the interdisciplinary development and deployment of renewable energy, waste recycling systems and sustainable architecture to enable the production and distribution of open-format, open-source remote field research in Antarctica and the Arctic. ITASC is a lichen-like structure sharing and integrating local knowledge, resources and skills across seven continents in order to symbiotically engage with the air, ocean, earth and space commons.
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Saturday, 30 December 2006 04:44
Inuit Voices: Observations of Environmental Change
The “Inuit Voices” traveling exhibition relates the story of climate change through the eyes of the Inuit, Arctic peoples who are witnessing changes to the environment that has sustained them for a thousand years. The National Snow and Ice Data Center and the University of Colorado Museum, Boulder, collaborated on the development of “Inuit Voices,” which opened in April 2008.
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Saturday, 30 December 2006 04:34
BIPOMAC: Bipolar Climate Machinery
There is now clear evidence that the effects of recent and past climate changes have varied in magnitude across of the world. Some changes over periods of thousands of years seem to have affected the Arctic and Antarctic regions alternately, and this has been called the “bipolar see-saw” effect. The BIPOMAC project will collect and examine climate records in sedimentary sequences spanning the past five million years from both polar regions. These records will provide a basis for analysing the complex interactions of environmental processes that have caused the observed patterns of climate variation. Improved understanding of such processes and their interactions will increase our ability to forecast future climate and sea level change.
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Saturday, 30 December 2006 04:24
IPY @ Grand Valley State University
This project encompasses a variety of events to engage the community, teachers, and students in programs to increase awareness and understanding of polar issues. These activities will allow participants to learn about the science, mathematics, and technology related to exploring, living, and working in the Polar Regions and will focus on developing an understanding the importance of these regions both scientifically and culturally.
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Saturday, 30 December 2006 04:17
IFM: Indigenous Peoples' Forum on Environmental Monitoring in the Arctic
“Environmental Monitoring: an Indigenous Perspective” is a four-day forum scheduled for 2007 (fall), in Ottawa. It will provide an opportunity for Inuit and other Indigenous Peoples to voice their issues and concerns on the monitoring of their environment. The forum will demonstrate how the capacity, knowledge and viewpoints of Indigenous Peoples can guide environmental monitoring and decision-making processes in the Arctic.
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Saturday, 30 December 2006 04:11
OASIS-IPY: Ocean-Atmosphere-Sea Ice Snowpack Interactions and connections to climate change
OASIS will study the chemistry in the air over the Arctic Ocean. The health of mammals and humans is at stake, and a future change in climate will undoubtedly introduce unknown changes. OASIS will make use of a variety of platforms (icebreakers, ice islands, buoys) to obtain year-round information on the behavior of such key chemicals as ozone, mercury, and carbon dioxide. As the nature and extent of snow and ice cover is changing OASIS will assess the associated impact on, and by, climate change, and the human and ecosystem impacts of these chemicals.
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Saturday, 30 December 2006 04:07
GLACIODYN: The dynamic response of Arctic glaciers to global warming
Global Warming will have a large impact on glaciers in the Arctic region. Sea level will be affected, and substantial changes can be expected in sediment and fresh water supplies to embayments and fjords. In GLACIODYN we study the dynamics of Arctic glaciers by means of field observations, remote sensing from satellites, and computer modelling. This will deliver tools to make more accurate predictions about future changes.
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