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248 Titles Match Your Query
Showing 1 through 50 of 248 Next
1. A Broadband Seismic Experiment to Image the Lithosphere Beneath the Gamburtsev Mountains and Surrounding Areas, East Antarctica [NSF-ANT05-37371]
This award supports a seismological study of the Gamburtsev Subglacial Mountains (GSM), a Texas-sized mountain range buried beneath the ice sheets of East Antarctica. The project will perform a passive ...


2. A Comparison of Conjugate Auroral Electojet Indices [NSF-ANT10-43621]
The auroral electrojet index (AE) is used as an indicator of geomagnetic activity at high latitudes representing the strength of auroral electrojet currents in the Northern polar ionosphere. A similar ...


3. A Multi-decadal Record of Antarctic Benthos: Image Analysis to Maximize Data Utilization [NSF-ANT13-55533]
Daily atmospheric temperature and VMR for the atmospheric species are provided at 2 deg. lat. X 4 deg. long. spatial grids and at a subset of TES standard pressure levels. Algorithms for deriving ...


4. A New Reconstruction of the Last West Antarctic Ice Sheet Deglaciation in the Ross Sea [NSF-ANT10-43485]
This award supports a project to develop a better understanding of the response of the WAIS to climate change. The timing of the last deglaciation of the western Ross Sea will be improved using in ...


5. A Planning Workshop for a McMurdo Dry Valleys Terrestrial Observation Network [NSF-ANT12-41487]
This award will support the participation of US scientists in an international planning workshop devoted to discussions of how to best facilitate and coordinate international efforts for terrestrial ...


6. A VLF Beacon Transmitter at South Pole [NSF-ANT06-36928]
This proposal seeks funding to resume operation of the VLF Beacon Transmitter at the South Pole Station used to quantify temporal and spatial variations in the state of the lower ionosphere between ...


7. A new reconstruction of the last West Antarctic Ice Sheet deglaciation in the Ross Sea [NSF-ANT10-43517]
This award supports a project to develop a better understanding of the response of the WAIS to climate change. The timing of the last deglaciation of the western Ross Sea will be improved using in ...


8. ASPIRE: Amundsen Sea Polynya International Research Expedition [NSF-ANT09-44727]
ASPIRE is an NSF-funded project that will examine the ecology of the Amundsen Sea during the Austral summer of 2010. ASPIRE includes an international team of trace metal and carbon chemists, phytoplankton ...


9. Abandoned Elephant Seal Colonies in Antarctica: Integration of Genetic, Isotopic, and Geologic Approaches toward Understanding Holocene Environmental Change [NSF-ANT04-39906]
During previous NSF-sponsored research, the PI's discovered that southern elephant seal colonies once existed along the Victoria Land coast (VLC) of Antarctica, a region where they are no longer observed. ...


10. Acoustic Assessment of Southern Ocean Salps and Their Ecosystem Impact [NSF-ANT09-44042]
The importance of gelatinous zooplankton in marine systems worldwide is increasing. In Southern Ocean, increasing salp densities could have a detrimental effect on higher predators, including penguins, ...


11. Activation of high-elevation alluvial fans in the Transantarctic Mountains - a proxy for Plio-Pleistocene warmth along East Antarctic ice margins [NSF-ANT10-43554]
The PIs propose to address the question of whether ice surface melting zones developed at high elevations during warm climatic phases in the Transantarctic Mountains. Evidence from sediment cores ...


12. Adaptive Responses of Phaeocystis Populations in Antarctic Ecosystems [NSF-ANT11-42018]
Global climate change is having significant effects on areas of the Southern Ocean, and a better understanding of this ecosystem will permit predictions about the large-scale implications of these ...


13. Adelie Penguin Response to Climate Change at the Individual, Colony and Metapopulation Levels [NSF-ANT09-44411]
While changes in populations typically are tracked to gauge the impact of climate or habitat change, the process involves the response of individuals as each copes with an altered environment. In ...


14. Adelie Penguin Response to Climate Change at the Individual, Colony and Metapopulation Levels - NSF-ANT09-44358 [NSF-ANT09-44358]
While changes in populations typically are tracked to gauge the impact of climate or habitat change, the process involves the response of individuals as each copes with an altered environment. In ...


15. Aging in Weddell Seals: Proximate Mechanisms of Age-Related Changes in Adaptations to Breath-Hold Hunting in an Extreme Environment [NSF-ANT06-49609]
The primary objectives of this research are to investigate the proximate effects of aging on diving capability in the Weddell Seal and to describe mechanisms by which aging may influence foraging ...


16. Alternative Nutritional Strategies in Antarctic Protists [NSF-ANT08-38955]
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Most organisms meet their carbon and energy needs using photosynthesis (phototrophy) or ingestion/assimilation ...


17. Ammonia Oxidation Versus Heterotrophy in Crenarchaeota Populations from Marine Environments West of the Antarctic Peninsula [NSF-ANT08-38996]
Ammonia oxidation is the first step in the conversion of regenerated nitrogen to dinitrogen gas, a 3-step pathway mediated by 3 distinct guilds of bacteria and archaea. Ammonia oxidation and the overall ...


18. An Integrated Ecological Investigation of McMurdo Dry Valley's Active Soil Microbial Communities [NSF-ANT11-42102]
The McMurdo Dry Valleys in Antarctica are among the coldest, driest habitats on the planet. Previous research has documented the presence of surprisingly diverse microbial communities in the soils ...


19. An Integrated Geomagnetic and Petrologic Study of the Dufek Complex [NSF-ANT05-37609]
This project studies remnant magnetization in igneous rocks from the Dufek igneous complex, Antarctica. Its primary goal is to understand variations in the Earth's magnetic field during the Mesozoic ...


20. Annual Satellite Era Accumulation Patterns Over WAIS Divide: A Study Using Shallow Ice Cores, Near-Surface Radars and Satellites [NSF-ANT09-44653]
This award supports a project to broaden the knowledge of annual accumulation patterns over the West Antarctic Ice Sheet by processing existing near-surface radar data taken on the US ITASE traverse ...


21. Antarctic Auroral Imaging [NSF-ANT06-36899]
Auroral protons are not energized by electric fields directly above the auroral atmosphere and therefore they are a much better diagnostic of processes deep in the magnetosphere. It has been shown ...


22. Antarctic Climate Reconstruction Utilizing the US ITASE Ice Core Array (2009-2012) [NSF-ANT08-37988]
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This award supports a project to reconstruct the past physical and chemical climate of Antarctica, ...


23. Antarctic Cretaceous-Cenozoic Climate, Glaciation, and Tectonics: Site surveys for drilling from the edge of the Ross Ice Shelf [NSF-ANT00-87392]
This award, provided by the Antarctic Geology and Geophysics Program of the Office of Polar Programs, supports a collaborative research program in marine geology and geophysics in the southern central ...


24. Antarctica's Geological History Reflected in Sedimentary Radiogenic Isotopes [NSF-ANT05-38580]
This project studies sediment from the ocean floor to understand Antarctica's geologic history. Glacially eroded from the Antarctic continent, these sediments may offer insight into the 99% Antarctica ...


25. Application for an Early-concept Grant for Exploratory Reasearch (EAGER) to develop a Pathway/Genome Database (PGDB) for the Southern Ocean Haptophyte Phaeocystis Antarctica. [NSF-ANT10-63592]
Phaeocystis antarctica is capable of forming blooms that are denser and more extensive than any other member of the Southern Ocean phytoplankton community. The factors that enable P Antarctica to ...


26. Application of Detrital Zircon Isotope Characteristics and Sandstone Analysis of Beacon Strata to the Tectonic Evolution of the Antarctic Sector of Gondwana [NSF-ANT09-44532]
Intellectual Merit: The goal of this project is to address relationships between foreland basins and their tectonic settings by combining detrital zircon isotope characteristics and sedimentological ...


27. Application of a New Method for Isotopic Analysis of Diatom Microfossil-bound Nitrogen [NSF-ANT04-53680]
The Southern Ocean may play a central role in causing ice ages and general global climate change. This work will reveal key characteristics of the glacial ocean, and may explain the cause of glacial/interglacial ...


28. Atmosphere-Ocean-Ice Interaction in a Coastal Polynya [NSF-ANT07-39464]
Antarctic polynyas are the ice free zones often persisting in continental sea ice. Characterization of the lower atmosphere properties, air-sea surface heat fluxes and corresponding ocean depth profiles ...


29. Atmospheric Boundary Layer Measurements on the Weddell Sea Drifting Station [NSF-ANT90-24544]
Location: Ice camp on perennial sea ice in the southwestern corner of the Weddell Sea, Antarctic The first direct radiative and turbulent surface flux measurements ever made over floating Antarctic ...


30. BICEP2 and SPUD - A Search for Inflation with Degree-Scale Polarimetry from the South Pole [NSF-ANT10-44978]
BICEP2 and SPUD - A Search for Inflation with Degree-Scale Polarimetry from the South Pole. The proposed work is a four-year program of research activities directed toward upgrading the BICEP (Background ...


31. Biodiversity, Buoyancy and Morphological Studies of Non-Antarctic Notothenioid Fishes [NSF-ANT04-36190]
Patterns of biodiversity, as revealed by basic research in organismal biology, may be derived from ecological and evolutionary processes expressed in unique settings, such as Antarctica. The polar ...


32. Boron in Antarctic granulite-facies rocks: under what conditions is boron retained in the middle crust? [NSF-ANT02-28842]
This award, provided by the Antarctic Geology and Geophysics Program of the Office of Polar Programs, supports a project to investigate the role and fate of Boron in high-grade metamorphic rocks of ...


33. Bromide in Snow in the Sea Ice Zone [NSF-ANT10-43145]
A range of chemical and microphysical pathways in polar latitudes, including spring time (tropospheric) ozone depletion, oxidative pathways for mercury, and cloud condensation nuclei (CCN) production ...


34. CAREER: Deciphering Antarctic Climate Variability during the Temperate/Polar Transition and Improving Climate Change Literacy in Louisiana through a Companion Outreach Program [NSF-ANT10-48343]
Intellectual Merit: The PI proposes a high-resolution paleoenvironmental study of pollen, spore, fresh-water algae, and dinoflagellate cyst assemblages to investigate the palynological record of sudden ...


35. Central Scotia Seafloor and the Drake Passage Deep Ocean Current Gateway [NSF-ANT06-36850]
This project studies the opening of the Drake Passage between South America and Antarctica through a combined marine geophysical survey and geochemical study of dredged ocean floor basalts. Dating ...


36. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems. [NSF-ANT07-32983]
Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine Ecosystems. A profound transformation in ecosystem structure and function ...


37. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach - Marine and Quaternary Geosciences [NSF-ANT07-32625]
This award supports a research cruise to perform geologic studies in the area under and surrounding the former Larsen B ice shelf, on the Antarctic Peninsula. The ice shelf's disintegration in 2002 ...


38. Collaborative Research in IPY: Abrupt Environmental Change in the Larsen Ice Shelf System, a Multidisciplinary Approach -- Cryosphere and Oceans [NSF-ANT07-32651]
Scambos/0732921,Pettit/0732738,Gordon/0732651,Truffer/0732602,Mosley-Thompson/0732655. Like no other region on Earth, the northern Antarctic Peninsula represents a spectacular natural laboratory ...


39. Collaborative Research: A 'Horizontal Ice Core' for Large-Volume Samples of the Past Atmosphere, Taylor Glacier, Antarctica [NSF-ANT08-39031]
This award supports a project to develop a precise gas-based chronology for an archive of large-volume samples of the ancient atmosphere, which would enable ultra-trace gas measurements that are currently ...


40. Collaborative Research: A 'Horizontal Ice Core' for Large-Volume Samples of the Past Atmosphere, Taylor Glacier, Antarctica (Brook) [NSF-ANT08-38936]
This award supports a project to develop a precise gas-based chronology for an archive of large-volume samples of the ancient atmosphere, which would enable ultra-trace gas measurements that are currently ...


41. Collaborative Research: Biogeochemistry of Cyanobactrial Mats and Hyporheic Zone Microbes in McMurdo Dry Valley Glacial Meltwater Streams [NSF-ANT07-39648]
The glacial streams of the McMurdo Dry Valleys have extensive cyanobacterial mats that are a probable source of fixed C and N to the Valleys. The research will examine the interplay between the microbial ...


42. Collaborative Research: Biogeochemistry of Dissolved Organic Matter in Pony Lake, Ross Island [NSF-ANT03-38260]
Dissolved organic matter (DOM) is a significant chemical component in aquatic systems because it acts as an important carbon source for microorganisms, absorbs harmful radiation in sunlight, is able ...


43. Collaborative Research: Biogeochemistry of Dissolved Organic Matter in Pony Lake, Ross Island - NSF-ANT03-38342 [NSF-ANT03-38342]
Dissolved organic matter (DOM) is a significant chemical component in aquatic systems because it acts as an important carbon source for microorganisms, absorbs harmful radiation in sunlight, is able ...


44. Collaborative Research: Climate Change and Predatory Invasion of the Antarctic Benthos [NSF-ANT11-41877]
Elevated temperatures and ocean acidification are both threatening the Southern Ocean. The effects of these environmental changes are poorly understood, but preliminary data suggest that they are ...


45. Collaborative Research: Constraining the Petrogenesis and Mantle Source of Adare Basin Seamount Lavas [NSF-ANT05-38266]
This award supports the study of lava samples from seamounts in the Cape Adare region of the western Ross Sea. Volcanism in this area is poorly understood, and the geochemistry of these lavas may ...


46. Collaborative Research: Controls over the Spatial Distribution and Activity of Microbial Communities in Antarctic Soils [NSF-ANT09-44556]
Advances in molecular techniques have expanded our understanding of soil microbial communities, and raised important questions about regional and global patterns in microbial diversity. The proposed ...


47. Collaborative Research: Dating and Paleoenvironmental Studies on Ancient Ice in the Dry Valleys, Antarctica [NSF-ANT06-36731]
This project studies ancient ice buried in the Dry Valleys of Antarctica. The ice, which may approach ten million years in age, will be dated using argon and uranium radioisotope techniques. High-risk ...


48. Collaborative Research: Decoding & Predicting Antarctic Surface Melt Dynamics with Observations, Regional Atmospheric Modeling and GCMs [NSF-ANT10-43580]
The presence of ice ponds from surface melting of glacial ice can be a significant threshold in assessing the stability of ice sheets, and their overall response to a warming climate. Snow melt has ...


49. Collaborative Research: Differential Expression of Oxygen-binding Proteins in Antarctic Fishes Affects Nitric Oxide-mediated Pathways of Angiogenesis and Mitochondrial Biogenesis [NSF-ANT04-37887]
The polar ocean presently surrounding Antarctica is the coldest, most thermally stable marine environment on earth. Because oxygen solubility in seawater is inversely proportional to temperature, ...


50. Collaborative Research: EAGER: Evaluating the Larsen Basin's Suitability for Testing the Cretaceous Glaciation Hypothesis [NSF-ANT12-41460]
Intellectual Merit: Recent geochemical, sequence stratigraphic, and integrated investigations of marine strata from several continental margins and ocean basins suggest that ephemeral ice sheets may ...


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