Search Results - "Fahnestock, M. A."

Kinetic fractionation of gases by deep air convection in polar firn by Kawamura, K, Severinghaus, J. P, Albert, M. R, Courville, Z. R, Fahnestock, M. A, Scambos, T, Shields, E, Shuman, C. A

“…A previously unrecognized type of gas fractionation occurs in firn air columns subjected to intense convection. It is a form of kinetic fractionation that…”
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Impacts of an accumulation hiatus on the physical properties of firn at a low-accumulation polar site by Courville, Z. R., Albert, M. R., Fahnestock, M. A., Cathles IV, L. M., Shuman, C. A.

“…Recent field investigations of a megadune region of East Antarctica provide evidence that differences in grain size, thermal conductivity, and permeability…”
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Flow variability and ongoing margin shifts on Bindschadler and MacAyeal Ice Streams, West Antarctica by Hulbe, C. L., Scambos, T. A., Klinger, M., Fahnestock, M. A.

“…Ice streams on the Ross Sea side of the West Antarctic Ice Sheet are known to experience flow variability on hourly, annual, and multicentury time scales. We…”
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Interferometric estimation of three-dimensional ice-flow using ascending and descending passes by Joughin, I.R., Kwok, R., Fahnestock, M.A.

“…Satellite radar interferometry (SRI) provides an important new tool for determining ice-flow velocity. Interferometric measurements made from a single-track…”
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Ice-stream-related patterns of ice flow in the interior of northeast Greenland by Fahnestock, M. A., Joughin, I., Scambos, T. A., Kwok, R., Krabill, W. B., Gogineni, S.

“…Ice flow in the interior of the NE quadrant of the Greenland ice sheet is focused on the large ice stream draining the north side of the summit dome. The rapid…”
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Ecological impact of a large Antarctic iceberg by Arrigo, Kevin R., van Dijken, Gert L., Ainley, David G., Fahnestock, Mark A., Markus, Thorsten

“…Satellite imagery has been used to document for the first time the potential for large icebergs to substantially alter the dynamics of a marine ecosystem. The…”
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Composite Temperature Record from the Greenland Summit, 1987–1994: Synthesis of Multiple Automatic Weather Station Records and SSM/I Brightness Temperatures by Shuman, C. A., Fahnestock, M. A., Bindschadler, R. A., Alley, R. B., Stearns, C. R.

“…Air temperature (TA) records from automatic weather stations (AWS) in central Greenland and associated Special Sensor Microwave/Imager (SSM/I) brightness…”
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Ice sheet motion and topography from radar interferometry by Kwok, R., Fahnestock, M.A.

“…Both topography and motion information are present in repeat pass ERS-1 interferograms over ice sheets. The authors demonstrate that the topography is…”
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MODIS-based Mosaic of Antarctica (MOA) data sets: Continent-wide surface morphology and snow grain size by Scambos, T.A., Haran, T.M., Fahnestock, M.A., Painter, T.H., Bohlander, J.

“…We present digital image mosaics of surface morphology and optical snow grain size for the Antarctic continent and surrounding islands, assembled from 260…”
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Century-scale discharge stagnation and reactivation of the Ross ice streams, West Antarctica by Hulbe, C., Fahnestock, M.

“…Flow features on the surface of the Ross Ice Shelf, West Antarctica, record two episodes of ice stream stagnation and reactivation within the last 1000 years…”
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GBaTSv2: a revised synthesis of the likely basal thermal state of the Greenland Ice Sheet by MacGregor, Joseph A., Chu, Winnie, Colgan, William T., Fahnestock, Mark A., Felikson, Denis, Karlsson, Nanna B., Nowicki, Sophie M. J., Studinger, Michael

“…The basal thermal state (frozen or thawed) of the Greenland Ice Sheet is under-constrained due to few direct measurements, yet knowledge of this state is…”
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Improving AVHRR Resolution Through Data Cumulation for Mapping Polar Ice Sheets by Scambos, Ted A, Kvaran, Geir, Fahnestock, Mark A

“…Data cumulation is a digital image processing technique in which several scenes of the same area, taken under similar viewing conditions, are combined into a…”
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Detection and monitoring of stratigraphic markers and temperature trends at the Greenland Ice Sheet Project 2 using passive-microwave remote-sensing data by Shuman, C. A., Alley, R. B., Fahnestock, M. A., Fawcett, P. J., Bindschadler, R. A., White, J. W. C., Grootes, P. M., Anandakrishnan, S., Stearns, C. R.

“…Satellite passive‐microwave sensors provide a sensitive means of studying ice‐sheet surface processes that assists ice‐core interpretation and can extend local…”
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MODIS-based Mosaic of Antarctica (MOA) data sets : Continent-wide surface morphology and snow grain size: Remote sensing of the Cryosphere by SCAMBOS, T. A, HARAN, T. M, FAHNESTOCK, M. A, PAINTER, T. H, BOHLANDER, J

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Tectonically controlled subglacial lakes on the flanks of the Gamburtsev Subglacial Mountains, East Antarctica by Bell, Robin E., Studinger, Michael, Fahnestock, Mark A., Shuman, Christopher A.

“…The morphology of surface lakes strongly influences their ecology and limnology (Wetzel, 2001). This morphology is a result of both the geologic processes that…”
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Ice-stream-related patterns of ice flow in the interior of northeast Greenland : Mass balance of the Greenland ice sheet (PARCA) by FAHNESTOCK, M. A, JOUGHIN, I, SCAMBOS, T. A, KWOK, R, KRABILL, W. B, GOGINENI, S

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Snow megadune fields on the East Antarctic Plateau: Extreme atmosphere-ice interaction by Fahnestock, Mark A., Scambos, Ted A., Shuman, Christopher A., Arthern, Robert J., Winebrenner, Dale P., Kwok, Ron

“…Large dune fields occupy more than 500,000 km² of the East Antarctic Plateau. The “megadunes”, or long‐wavelength surface ripples, have amplitudes of only a…”
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Detection and monitoring of stratigraphic markers and temperature trends at the Greenland Ice Sheet Project 2 using passive-microwave remote-sensing data: Greenland Summit Ice Cores: Greenland Ice Sheet Project 2 (GISP2)/Greenland Ice Core Program (GRIP) by SHUMAN, C. A, ALLEY, R. B, FAHNESTOCK, M. A, FAWCETT, P. J, BINDSCHADLER, R. A, WHITE, J. W. C, GROOTES, P. M, ANANDAKRISHNAN, S, STEARNS, C. R

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