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1. 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 ...


2. 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 ...


3. 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. ...


4. 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 ...


5. 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 ...


6. Methylmercury in Antarctic Krill Microbiomes [USAP-1543412_1]
The goal of this project was to conduct a preliminary assessment of gut microbiomes in Antarctic krill (Euphasia superba) collected in coastal waters west of the Antarctic Peninsula and identify organisms ...


7. Micrometeorites from the South Pole Water Well [NSIDC-0113_1]
Micrometeorites dated between 1100 A.D. to 1500 A.D. were collected from the bottom of the South Pole Water Well in December 1995. Element analyses of 181 cosmic glass spherule and micrometeorite ...


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. Collaborative Research: MIDGE: Minimally Invasive Direct Glacial Exploration of Biogeochemistry, Hydrology and Glaciology of Blood Falls, McMurdo Dry Valleys [USAP-1144192_1]
Recent discoveries of widespread liquid water and microbial ecosystems below the Antarctic ice sheets have generated considerable interest in studying Antarctic subglacial environments. Understanding ...


13. Workshop on Antarctic Surface Hydrology and Future Ice-shelf Stability [USAP-1743326_1]
Ice shelves are the floating portions of glaciers that terminate in the ocean. They are common around the periphery of Antarctica. The accumulation of surface meltwater on or near the surface of ...


14. EAGER: Surface Variability and Spectral Analyses of the Central Transantarctic Mountains, Antarctica [USAP-1758224_1]
Intellectual Merit: Ice free rock outcrops in the Transantarctic Mountains provide the only accessible windows into the interior of the ice covered Antarctic continent; they are extremely remote ...


15. Circumpolar Deep Water and the West Antarctic Ice Sheet [USAP-9725024_1]
This project will study the dynamics of Circumpolar Deep Water intruding on the continental shelf of the West Antarctic coast, and the effect of this intrusion on the production of cold, dense bottom ...


16. Iron and Light Limitation in Ecologically Important Polar Diatoms: Comparative Transcriptomics and Development of Molecular Indicators [USAP-1341479_1]
The Southern Ocean surrounding Antarctica is changing rapidly in response to Earth's warming climate. These changes will undoubtedly influence communities of primary producers (the organisms at the ...


17. Cold Corals in Hot Water - Investigating the Physiological Responses of Antarctic Coral Larvae to Climate change Stress [USAP-1245766_1]
The Western Antarctic Peninsula is experiencing climate change at one of the fastest rates of anywhere around the globe. Accelerated climate change is likely to affect the many benthic marine invertebrates ...


18. Collaborative Research: The Chemical Ecology of Shallow-water Marine Macroalgae and Invertebrates on the Antarctic Peninsula - continuing [USAP-1341333_1]
The coastal environments of the western Antarctic Peninsula harbor rich assemblages of marine animals and algae. The importance of the interactions between these groups of organisms in the ecology ...


19. Collaborative Research: Fjord Ecosystem Structure and Function on the West Antarctic Peninsula - Hotspots of Productivity and Biodiversity? (FjordEco) award#1443733 [USAP-1443733_1]
Marine communities along the western Antarctic Peninsula are highly productive ecosystems which support a diverse assemblage of charismatic animals such as penguins, seals, and whales as well as commercial ...


20. Collaborative Research: Importance of Heterotrophic and Phototrophic N2 Fixation in the McMurdo Dry Valleys on Local, Regional and Landscape Scales - award #1246292 [USAP-1246292_1]
The McMurdo Dry Valleys of Antarctica represents the largest perpetually ice-free region on the continent. With the combination of prevailing katabatic winds and extremely low precipitation rates, ...


21. Curation of National Antarctic Sediment Collections [USAP-1457577_1]
The grant was for the re-curation of the Antarctic Sediment collection and prepare the collection for transportation to Oregon State University. The move of the cores took place in July and August ...


22. Collaborative Research: Fjord Ecosystem Structure and Function on the West Antarctic Peninsula - Hotspots of Productivity and Biodiversity? (FjordEco) [USAP-1443680_1]
Marine communities along the western Antarctic Peninsula are highly productive ecosystems which support a diverse assemblage of charismatic animals such as penguins, seals, and whales as well as commercial ...


23. Collaborative Research: POLENET-Antarctica: Investigating Links Between Geodynamics and Ice Sheets - Phase 2 [USAP-1249631_1]
Intellectual Merit: The PIs continued and expanded GPS and seismic measurements for ANET-POLENET to advance understanding of geodynamic processes and their influence on the West Antarctic Ice Sheet. ...


24. Collaborative Research: RAPID/Workshop- Antarctic Ecosystem Research following Ice Shelf Collapse and Iceberg Calving Events [USAP-1750630_1]
Worldwide publicity surrounding the calving of an iceberg the size of Delaware in July 2017 from the Larsen C Ice Shelf on the eastern side of the Antarctic Peninsula presents a unique and time-sensitive ...


25. A Preliminary Assessment of the Influence of Ice Cover on Microbial Carbon and Energy Acquisition during the Antarctic Winter-spring Seasonal Transition [USAP-1656344_1]
This EAGER project will compare gene expression patterns in the planktonic communities under ice covers that form in coastal embayment's in the Antarctic Peninsula. Previous efforts taking advantage ...


26. Collaborative Research: Assessing the Global Climate Response to Melting of the Antarctic Ice Sheet [USAP-1443394_1]
There is compelling historical evidence that the West Antarctic Ice Sheet (WAIS) is vulnerable to rapid retreat and collapse. Recent observations, compared to observations made 20-30 years before, ...


27. Collaborative Research: Inert Gas and Methane Based Climate Records throughout the South Pole Deep Ice Core [USAP-1443710_1]
Gases trapped in ice cores have revealed astonishing things about the greenhouse gas composition of the past atmosphere, including the fact that carbon dioxide concentrations never rose above 300 ...


28. Group Travel Award: XIIth SCAR International Biology Symposium [USAP-1704236_1]
This project supported US participation in the XIIth Scientific Committee on Antarctic Research (SCAR) International Biology Symposium. The theme of this meeting and ancillary workshops was Scale ...


29. Group Travel Award: XXXVth SCAR Open Science Conference [USAP-1824677_1]
This award supported the attendance of 39 U.S. scientists at the 35th SCAR Open Science Conference (OSC) to enable them to present their scientific findings, develop new collaborations with international ...


30. Linking Foraging Behaviors to Demography to understand Albatrosses Population Responses to Climate Change [USAP-1246407_1]
Understanding the ecological consequences - present and future-of climate change is a central question in conservation biology. The goal of this project is to identify the effects of climate change ...


31. Collaborative Research: Body Size, Oxygen, and Vulnerability to Climate Change in Antarctic Pycnogonida [USAP-1341476_1]
Beginning with the earliest expeditions to the poles, scientists have noted that many polar taxa grow to unusually large body sizes, a phenomenon now known as 'polar gigantism.' Although scientists ...


32. Collaborative Research: Deglaciation of the Ross Sea Embayment - Constraints from Roosevelt Island - award #0943466 [USAP-0943466_1]
This award supports a project to use the Roosevelt Island ice core as a glaciological dipstick for the eastern Ross Sea. Recent attention has focused on the eastern Ross Embayment, where there are ...


33. Collaborative Research: Exploring the Vulnerability of Southern Ocean Pinnipeds to Climate Change - An Integrated Approach [USAP-1142108_1]
Building on previously funded NSF research, the use of paleobiological and paleogenetic data from mummified elephant seal carcasses found along the Dry Valleys and Victoria Land Coast in areas that ...


34. Collaborative Research: Totten Glacier System and the Marine Record of Cryosphere - Ocean Dynamics #1143833 [USAP-1143833_1]
This project will investigate the marine component of the Totten Glacier and Moscow University Ice Shelf, East Antarctica. This system is of critical importance because it drains one-eighth of the ...


35. Anisotropic Ice and Stratigraphic Disturbances [USAP-1246045_1]
This award supported a project that investigated a number of questions regarding the measurement and development of crystal orientation fabrics in ice sheets, and the relation of crystal orientation ...


36. CAREER: Protist Nutritional Strategies in Permanently Stratified Antarctic Lakes [USAP-1056396_1]
This project supported an integrated research and education program in the fields of polar biology and environmental microbiology, focusing on single-celled eukaryotes (protists) in high latitude ...


37. Ethane Measurements in the Intermediate Depth South Pole Ice Core (SPICECORE) [USAP-1644245_1]
This award supports a project to measure ethane in ice core air extracted from the recently drilled intermediate depth South Pole ice core (SPICECORE). Ethane is an abundant hydrocarbon in the atmosphere. ...


38. 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 ...


39. You are what you eat: The Role of Kleptoplasty in an Antarctic Dinoflagellate [USAP-1341362_1]
Kleptoplasty, the temporary acquisition and use of functional chloroplasts derived from algal prey, is viewed as an important model for the early evolution of the permanent, endosymbiotically-derived ...


40. Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) [USAP-1425989_1]
Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) project seeks to drive a transformative shift in our understanding of the crucial role of the Southern Ocean in taking up anthropogenic ...


41. Assembling and Mining the Genomes of Giant Antarctic Foraminifera [USAP-1341612_1]
Agglutinated foraminifera (forams for short) are early-evolving, single-celled organisms. These "living fossils" construct protective shells using sediment grains held together by adhesive substances ...


42. Collaborative Research: Phytoplankton Phenology in the Antarctic: Drivers, Patterns, and Implications for the Adelie Penguin - award #1341440 [USAP-1341440_1]
The aim of study is to understand how climate-related changes in snow and ice affect predator populations in the Antarctic, using the Adelie penguin as a focal species due to its long history as a ...


43. The Cost of A New Fur Coat: Interactions between Molt and Reproduction in Weddell Seals (USAP/DC) [USAP-1246463_1]
Marine mammals that inhabit high latitude environments have evolved unique mechanisms to execute a suite of energetically-costly life history events (CLHEs) within a relatively short timeframe when ...


44. 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% ...


45. 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 ...


46. Collaborative Research: Testing the Hypothesis that Bigger Magma Chambers Crystallize Faster [USAP-1543313_1]
The solidified remnants of large magma bodies within the continental crust hold the key to understanding the chemical and physical evolution of volcanic provinces through time. These deposits also ...


47. Applying High-resolution GPS Tracking to Characterize Sensory Foraging Strategies of the Black-browed Albatross, a Top Predator of the Southern Ocean Ecosystem [USAP-1142084_1]
We collected GPS tracks and stomach temperature records from Blackbrowed Albatross from a breeding colony at "Canon des Sourcils Noirs" on Kerguelen Island for the purpose of analyzing their flight ...


48. Collaborative Research: Characterization of Upstream Ice and Firn Dynamics affecting the South Pole Ice Core [USAP-1443471_1]
Ice-core records are critical to understanding past climate variations. An Antarctic ice core currently being drilled at the South Pole will allow detailed investigation of atmospheric gases and fill ...


49. LTER Palmer, Antarctica (PAL): Land-Shelf-Ocean Connectivity, Ecosystem Resilience and Transformation in a Sea-Ice Influenced Pelagic Ecosystem [USAP-1440435_1]
The Palmer Antarctica LTER (Long Term Ecological Research) site has been in operation since 1990. The goal of all the LTER sites is to conduct policy-relevant research on ecological questions that ...


50. Paleomagnetism and Magnetostratigraphy of the James Ross Basin, Antarctica [USAP-1341729_1]
Non-Technical Summary: About 80 million years ago, the tip of the Antarctic Peninsula in the vicinity of what is now James Ross Island experienced an episode of rapid subsidence, creating a broad ...


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