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22 Titles Match Your Query
Showing 1 through 22 of 22
1. WAIS Divide Sonic Log Data [NSIDC-0592]
This data set contains a record of speeds for vertically-propagating compression-waves measured throughout the depth of ice that surrounds the WAIS-D borehole. Multiple logs provide redundant measurements ...


2. Collaborative Research: Western Divide West Antarctic Ice Cores (WAISCORES) Site Selection [conway_0087345]
This award supports a program of ground-based geophysical measurements to map in detail the spatial variations of ice flow, accumulation rate, internal layering and ice thickness at the sites which ...


3. Vertical Strain at Siple Dome, Antarctica, 1999-2002 [NSIDC-0214]
At the Siple Dome area of Antarctica, much of the ice flow is vertical, which causes vertical ice deformation. To measure this phenomenon, the investigators used a method known as vertical strain ...


4. Borehole Optical Stratigraphy Modeling, Antarctica [NSIDC-0468]
This data set consists of scripts and code designed for modeling the properties of boreholes in polar ice sheets, under a range of variations in the borehole geometry, firn layering, and camera pointing ...


5. Sonic Log Data for the NEEM Corehole [pettit_1208635]
This dataset contains a record of speeds for vertically-propagating compression waves measured throughout the depth of ice that surrounds the NEEM corehole. Multiple logs provide redundant measurements ...


6. WAIS Divide Sonic Log Data [waddington_0944199]
This dataset contains a record of speeds for vertically-propagating compression-waves measured throughout the depth of ice that surrounds the WAIS-D corehole. Multiple logs provide redundant measurements ...


7. Histories of Accumulation, Thickness, and WAIS Divide Location, Antarctica [NSIDC-0473]
This data set contains radar internal layer and ice sheet topography data for two sites in Antarctica, along with associated model results from two studies. This project used geophysical inverse theory ...


8. Annual Layers at Siple Dome, Antarctica, from Borehole Optical Stratigraphy [NSIDC-0515]
Researchers gathered data on annual snow layers at Siple Dome, Antarctica, using borehole optical stratigraphy. This data set contains annual layer depths and firn optical brightness. The brightness ...


9. Millennially Averaged Accumulation Rates for Lake Vostok [NSIDC-0500]
This data set consists of inferred accumulation rates from three radar layers (26, 35 and 41 thousand years old) in the Vostok Subglacial Lake region. Accumulation rates were inferred using Local-Layer ...


10. Ocean Surfaces on Snowball Earth [Warren_0739779]
The climatic changes of the Neoproterozoic time, 600-800 million years ago, included episodes of extreme glaciation, during which ice may have covered nearly the entire ocean for several million years, ...


11. Self-consistent Ice Dynamics, Accumulation, Delta-age, and Interpolation of Sparse Age Data using an Inverse Approach [waddington_0636997]
We provide a the synthetic, sparse depth-age data generated using a 1-d ice-flow model. The age data include red noise to simulate real depth-age data. The inferred depth-age data profile are included. ...


12. Anisotropy, Abrupt Climate Change, and the Deep Ice in West Antarctica [waddington_0636996]
This record includes two datasets and accompanying code. The anisotropic flow dataset provides velocity and fabric evolution of anisotropic ice for several numerical experiments. The experiments ...


13. Spatial Variability in Firn Properties from Borehole Optical Stratigraphy at the Inland WAIS Core Site [waddington_0538639]
Award Abstract #0538639 Spatial Variability in Firn Properties from Borehole Optical Stratigraphy at the Inland WAIS Core Site This award supports a project to study the patterns of accumulation ...


14. A Unique Opportunity for In-Situ Measurement of Seasonally-Varying Firn Densification at Summit, Greenland [waddington_0352584]
This is a collaborative proposal by Principal Investigators at the University of Washington and the Desert Research Institute. They will make detailed measurements of the temporal and spatial variations ...


15. Inland migration of fast-flowing outlet glaciers and ice streams: Model investigations of the transition from tributary to ice-stream flow [waddington_OPP0125610]
We have developed a two-dimensional full-stress model to (1) investigate the controlling processes in onset regions and (2) examine how those processes might affect the evolution of the onset region ...


16. Proposed Drill Site: Ross-Amundsen Ice Divide, West Antarctica [Western_Divide_WAIS_Icecores_Site_Selection]
Proposed drill site near the Ross-Amundsen ice divide, West Antarctica Describes conditions near the Ross-Amundsen ice divide, and discusses candidate drill sites ...


17. Borehole Optical Stratigraphy: Ice Microphysics, Climate Change, and the Optical Properties of Firn [waddington_0335330]
This award supported a study of the physical nature and environmental origin of optical features (light and dark zones) observed by video in boreholes in polar ice. These features appear to include ...


18. Histories of accumulation, thickness and WAIS Divide location from radar layers using a new inverse approach [Waddington_0440666]
This project used geophysical inverse theory and a 2.5D flowband ice-flow forward model to extract robust transient accumulation patterns from multiple deeper layers. Histories of divide migration ...


19. Borehole Optical Stratigraphy at Siple Dome [UW_BOS_SDM]
This data set contains the Borehole Optical Stratigraphic (BOS) profile for a borehole (designated K) approximately 50 M from the main borehole at Siple Dome, West Antarctica. BOS is ...


20. High-resolution digital borehole thermometer calibrations and tests [UW_USGS_Digital_Thermometer]
We designed, built, calibrated, and tested high-resolution (sub-mK) digital down-hole thermometer probes for measuring temperature in boreholes in polar ice sheets. Because a digital sensor ...


21. Iceland glaciers - velocities and radar 2003 [waddington_OPP0136112]
Data set comprises: (1) Digital Elevation Models of surface and bed in a 4x4 km area on Myrdalsjokull, Iceland, bounded by [7068000-7072000] Northing, [591000-596000] Easting in zone ...


22. Collaborative Research: Fabric and Texture Characteristics of Micro-Physical Processes in Ice [waddington_OPP0136047]
Project NSF-OPP0136047 was a contribution to a collaborative ice fabric and texture program (lead institution Ohio University). The UW contribution was a computer simulations of fabric and texture ...


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