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1378 Titles Match Your Query
Showing 1 through 50 of 1378 Next
1. Establishing the Chronology and Histories of Accumulation and Ice Dynamics for the WAIS Divide Core [USAP-0944197_1]
This award supports a project to help to establish the depth-age chronology and the histories of accumulation and ice dynamics for the WAIS Divide ice core. The depth-age relationship and the histories ...


2. Blue Ice Tephra II - Brimstone Peak [NSIDC-0114_1]
This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Brimstone Peak (75.888S 158.55E) in East Antarctica. Tephra samples were collected ...


3. Blue Ice Tephra II - Mt. DeWitt [NSIDC-0115_1]
This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected ...


4. Carbon-Isotopic Composition of Atmospheric CO2 since the Last Glacial Maximum [NSIDC-0108_1]
These data describe the concentration and carbon-isotopic composition (d13CO2) of atmospheric CO2 from air trapped in ice between 27,000 and 1,300 years before present from Taylor Dome, Antarctica. ...


5. Collaborative Research: Using Fracture Patterns and Ice Thickness to Study the History and Dynamics of Grounding Line Migration and Shutdown of Kamb and Whillans Ice Streams [fahnestock_0440636_1]
The work is in collaboration with co-PI Christina Hulbe and at Portland State University. In our previous work we were able to image, map, and interpret streak lines (flow trajectories) on the Ross ...


6. Concentration and Isotopic Composition of O2 and N2 in Trapped Gases of the Vostok Ice Core [NSIDC-0107_1]
These data describe the d18O of O2, d15N of N2, d18Oatm, and O2/N2 ratios of trapped gases in the Vostok ice core from East Antarctica. The investigator used a mass spectrometer to measure gas concentrations ...


7. Ice Velocity Data from Ice Stream C, West Antarctica [NSIDC-0106_1]
Ice velocity data from ice stream C, including the body of the ice stream and its area of onset, are available. The investigator calculated velocities from precise ice displacement measurements made ...


8. Surface Elevation and Ice Thickness, Western Marie Byrd Land, Antarctica [NSIDC-0119_1]
This data set provides surface elevation and ice thickness data for a portion of the Marie Byrd Land sector of West Antarctica, including the Ford Ranges, the Sulzberger Ice Shelf, much of the Edward ...


9. Tephra in Siple and Taylor Dome Ice Cores [NSIDC-0110_1]
This data set consists of electron microprobe geochemical analyses of glass shards sampled from Siple Dome and Taylor Dome ice cores during the 1999-2000 field season. Geochemical data are in tab-delimited ...


10. Three-Hourly Antarctic Automatic Weather Station Data, 1980-2000 [NSIDC-0111_1]
The Automatic Weather Station (AWS) Project, funded by the NSF Office of Polar Programs, involves collecting meteorological data from an array of automatic weather stations in Antarctica, Greenland, ...


11. WAISCORES: Deep Ice Coring in West Antarctica [NSIDC-0120_1]
The WAISCORES project is part of the National Science Foundation Office of Polar Programs' West Antarctic Ice Sheet (WAIS) initiative, which is aimed at understanding the influence of the West Antarctic ...


12. The Chemical Ecology of Shallow-water Marine Macroalgae and Invertebrates on the Antarctic Peninsula - NSF-ANT04-42857 [NSF-ANT04-42857_1]
Mesoherbivores, and specifically amphipods, are a conspicuous and dominant component of the macroalgal community in Antarctica. Despite their high abundance, the functional ecology, and particularly ...


13. The Chemical Ecology of Shallow-water Marine Macroalgae and Invertebrates on the Antarctic Peninsula - NSF-ANT08-38773 [NSF-ANT08-38773_1]
The near shore environments of the western Antarctic Peninsula (WAP) harbor extremely high densities of mesograzers (small invertebrate predators approximately 1-25 mm in length) such as benthic amphipods, ...


14. The Chemical Ecology of Shallow-water Marine Macroalgae and Invertebrates on the Antarctic Peninsula - NSF-ANT08-38776 [NSF-ANT08-38776_1]
The near shore environments of the western Antarctic Peninsula (WAP) harbor extremely high densities of mesograzers (small invertebrate predators approximately 1-25 mm in length) such as benthic amphipods, ...


15. 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_1]
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 ...


16. Fossil plants collected from Triassic-Jurassic Rocks, Carapace Nunatak, Allan Hills Area Southern Victoria Land [Taylor_PLR1142495c]
Fossil plants of Late Triassic and Early Jurassic age collected from the Allan Hills and Carapace Nunatak, southern Victoria Land. Fossils from Carapace include fossil conifers, some anatomically ...


17. Fossil plants collected from Triassic-Jurassic rocks, Carapace Nunatak, Allan Hills area, southern Victoria Land [Taylor_ANT1142495_PLR1142495]
Fossil plants of Late Triassic and Early Jurassic age collected from the Allan Hills and Carapace Nunatak, southern Victoria Land. Fossils from Carapace include fossil conifers, some anatomically ...


18. C-axis Fabric from Physical Properties Samples of the WAIS Divide Ice Core [NSIDC-0605_1]
This data set contains c-axis fabric measurements and grain area from the physical properties samples taken from the main West Antarctic Ice Sheet (WAIS) Divide ice core, WDC06A , Antarctica.


19. Redox Balance in Antarctic Notothenioid Fishes: Do Icefishes Have an Advantage? [NSF-ANT10-43576]
Antarctic channichthyid icefishes are stunning examples of the unique physiological traits that can arise during evolution in a constantly cold environment. Icefishes are the only vertebrates that ...


20. Snow and Firn Temperature and Permeability Measurements from Siple Dome, Antarctica [NSIDC-0100_1]
This data set includes measurements of snow and firn temperature and permeability collected between November 1998 and June 1999 at Siple Dome. The physical characteristics of snow determine the nature ...


21. ANSMET (the Antarctic Search for Meteorites) [99-80452]
Antarctic meteorite searches are one of the most important sources of extraterrestrial material and information for planetary research. In particular, more than 16,000 meteorite recoveries by the ...


22. Effect of Ocean Acidification on Early Life History Stages of the Antarctic Sea Urchins Sterechinus Neumayeri [NSF-ANT09-44201_1]
This research examines the effects of ocean acidification on embryos and larvae of a contemporary calcifier in the coastal waters of Antarctica, the sea urchin Sterechinus neumayeri. The effect of ...


23. Ocean Acidification Seascape: Linking Natural Variability and Anthropogenic changes in pH and Temperature to Performance in Calcifying Antarctic Marine Invertebrates [NSF-ANT12-46202_1]
The research supported in this project will examine the effects of environmental change on a key Antarctic marine invertebrate, a pelagic mollusk, the pteropod, Limacina helicina antarctica. There ...


24. Penguin Foraging Reveals Phytoplankton Spatial Structure in the Ross Sea [NSF-ANT11-42174_1]
The Ross Sea is believed to contributes a huge portion (~1/3) of the primary productivity of the Southern Ocean and is home to a similar large portion of the top predators (e.g. 38% of Adelie, 28% ...


25. 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 ...


26. 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 ...


27. 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 ...


28. 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 ...


29. 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 ...


30. A Study of Atmospheric Dust in the WAIS Divide Ice Core Based on Sr-Nd-Pb-He Isotopes [USAP-1043471]
This award supports a project to obtain the first set of isotopic-based provenance data from the WAIS divide ice core. A lack of data from the WAIS prevents even a basic knowledge of whether different ...


31. 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 ...


32. 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 ...


33. 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. ...


34. 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, ...


35. 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 ...


36. 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 ...


37. 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 ...


38. 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 ...


39. 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 ...


40. 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 ...


41. 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 ...


42. 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, ...


43. Antarctic Cloud Physics: Fundamental Observations from Ross Island [USAP-1141939]
Antarctic clouds constitute an important parameter of the surface radiation budget and thus play a significant role in Antarctic climate and climate change. The variability in, and long term trends ...


44. 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 ...


45. 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 ...


46. 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 ...


47. 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 ...


48. B-Be-Li Abundance and Isotope Data: Mt. Erebus-McMurdo Volcanics [Erebus_B-Be-Li]
A dataset of B, Be, and Li abundances, and Li and B isotopic ratios, for volcanic rocks from the McMurdo Volcanic Group, the Crary Mountains, and other intraplate volcanic centers, is available online ...


49. 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 ...


50. 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 ...


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