Search Results - "SCHROEDER, D. M."

Entrained Water in Basal Ice Suppresses Radar Bed‐Echo Power at Active Subglacial Lakes by Hills, B. H., Siegfried, M. R., Schroeder, D. M.

“…Subglacial lakes have been mapped across Antarctica with two methods, radio‐echo sounding (RES) and ice‐surface deformation. At sites where both are…”
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Evidence for and Against Temperate Ice in Antarctic Shear Margins From Radar‐Depth Sounding Data by Summers, P. T., Schroeder, D. M., May, D. F., Suckale, J.

“…The majority of ice mass loss from Antarctica flows through narrow, fast sliding regions of ice. The lateral boundaries of these regions, termed shear margins,…”
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Ocean access to a cavity beneath Totten Glacier in East Antarctica by Greenbaum, J. S., Blankenship, D. D., Young, D. A., Richter, T. G., Roberts, J. L., Aitken, A. R. A., Legresy, B., Schroeder, D. M., Warner, R. C., van Ommen, T. D., Siegert, M. J.

“…Totten Glacier has the largest thinning rate in East Antarctica. A derivation of the sea floor bathymetry reveals entrances to the ice cavity beneath the…”
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Surface and basal boundary conditions at the Southern McMurdo and Ross Ice Shelves, Antarctica by GRIMA, C., KOCH, I., GREENBAUM, J. S., SODERLUND, K. M., BLANKENSHIP, D. D., YOUNG, D. A., SCHROEDER, D. M., FITZSIMONS, S.

“…We derive the surface and basal radar reflectance and backscatter coefficients of the southern McMurdo Ice Shelf (SMIS) and part of the nearby Ross Ice Shelf…”
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Evidence of a hydrological connection between the ice divide and ice sheet margin in the Aurora Subglacial Basin, East Antarctica by Wright, A. P., Young, D. A., Roberts, J. L., Schroeder, D. M., Bamber, J. L., Dowdeswell, J. A., Young, N. W., Le Brocq, A. M., Warner, R. C., Payne, A. J., Blankenship, D. D., van Ommen, T. D., Siegert, M. J.

“…Subglacial hydrology in East Antarctica is poorly understood, yet may be critical to the manner in which ice flows. Data from a new regional airborne…”
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Complex Basal Thermal Transition Near the Onset of Petermann Glacier, Greenland by Chu, W., Schroeder, D. M., Seroussi, H., Creyts, T. T., Bell, R. E.

“…The basal thermal regime of ice sheets exerts a strong control on ice‐sheet stability and the onset of rapidly streaming flow. However, the nature of this…”
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Surface and basal boundary conditions at the Southern McMurdo and Ross Ice Shelves, Antarctica – CORRIGENDUM by Grima, C., Koch, I., Greenbaum, J. S., Soderlund, K. M., Blankenship, D. D., Young, D. A., Schroeder, D. M., Fitzsimons, S.

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Feasibility of Passive Sounding of Uranian Moons Using Uranian Kilometric Radiation by Romero‐Wolf, A., Steinbrügge, G., Castillo‐Rogez, J., Cochrane, C. J., Nordheim, T. A., Mitchell, K. L., Wolfenbarger, N. S., Schroeder, D. M., Peters, S.

“…We present a feasibility study for passive sounding of Uranian icy moons using Uranian Kilometric Radio (UKR) emissions in the 100–900 kHz band. We provide a…”
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Retrieval of Englacial Firn Aquifer Thickness From Ice‐Penetrating Radar Sounding in Southeastern Greenland by Chu, W., Schroeder, D. M., Siegfried, M. R.

“…An extensive perennial firn aquifer was previously mapped in Helheim Glacier, Southeast Greenland. However, critical constraints on aquifer thickness have been…”
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Brine Migration and Impact‐Induced Cryovolcanism on Europa by Steinbrügge, G., Voigt, J. R. C., Wolfenbarger, N. S., Hamilton, C. W., Soderlund, K. M., Young, D. A., Blankenship, D. D., Vance, S. D., Schroeder, D. M.

“…Despite evidence for plumes on Jupiter's moon Europa, no surface features have been definitively identified as the source of the plumes to date. Furthermore,…”
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Estrogen receptor-positive mammary tumorigenesis in TGFα transgenic mice progresses with progesterone receptor loss by ROSE-HELLEKANT, T. A, SCHROEDER, M. D, BROCKMAN, J. L, ZHDANKIN, O, BOLSTAD, R, CHEN, K. S, GOULD, M. N, SCHULER, L. A, SANDGREN, E. P

“…We characterized the novel NRL-transforming growth factor alpha (NRL-TGFα) transgenic mouse model in which growth factor - steroid receptor interactions were…”
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The Phase Response of a Rough Rectangular Facet for Radar Sounder Simulations of Both Coherent and Incoherent Scattering by Gerekos, C., Haynes, M. S., Schroeder, D. M., Blankenship, D. D.

“…With radar sounders, coherent backscattering simulations from global planetary digital elevation models (DEMs) typically display a deficit in diffuse clutter,…”
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The distribution of basal water between Antarctic subglacial lakes from radar sounding by Young, D. A., Schroeder, D. M., Blankenship, D. D., Kempf, Scott D., Quartini, E.

“…Antarctica's subglacial lakes have two end member geophysical expressions: as hydraulically flat, radar reflective regions highlighted in ice surface…”
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Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland by Kendrick, A. K., Schroeder, D. M., Chu, W., Young, T. J., Christoffersen, P., Todd, J., Doyle, S. H., Box, J. E., Hubbard, A., Hubbard, B., Brennan, P. V., Nicholls, K. W., Lok, L. B.

“…The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent…”
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Antarctic Topographic Realizations and Geostatistical Modeling Used to Map Subglacial Lakes by MacKie, E. J., Schroeder, D. M., Caers, J., Siegfried, M. R., Scheidt, C.

“…Antarctic subglacial lakes can play an important role in ice sheet dynamics, biology, geology, and oceanography, but it is difficult to definitively constrain…”
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Quadratus Lumborum Block as Sole, Homeostatic-Preserving Anesthetic for a Patient with Multiple System Atrophy Undergoing Open Inguinal Hernia Repair: A Case Report by La Colla, M. D. Luca, Schroeder, R. M. D.

“…Quadratus Lumborum (QL) block has been successfully used for different abdominal procedures in the past. Multiple system atrophy (MSA) is a progressive…”
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Inferring Ice Fabric From Birefringence Loss in Airborne Radargrams: Application to the Eastern Shear Margin of Thwaites Glacier, West Antarctica by Young, T. J., Schroeder, D. M., Jordan, T. M., Christoffersen, P., Tulaczyk, S. M., Culberg, R., Bienert, N. L.

“…In airborne radargrams, undulating periodic patterns in amplitude that overprint traditional radiostratigraphic layering are occasionally observed, however,…”
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Radar Characterization of Ice Crystal Orientation Fabric and Anisotropic Viscosity Within an Antarctic Ice Stream by Jordan, T. M., Martín, C., Brisbourne, A. M., Schroeder, D. M., Smith, A. M.

“…We use polarimetric radar sounding to investigate ice crystal orientation fabric and its impact on ice viscosity within the near surface of Rutford Ice Stream,…”
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Autonet: a high-speed, self-configuring local area network using point-to-point links by Schroeder, M.D., Birrell, A.D., Burrows, M., Murray, H., Needham, R.M., Rodeheffer, T.L., Satterthwaite, E.H., Thacker, C.P.

“…Autonet is a self-configuring local area network composed of switches interconnected by 100 Mb/s, full-duplex, point-to-point links. The switches contain 12…”
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Ecological and political issues surrounding decommissioning of offshore oil facilities in the Southern California Bight by Schroeder, Donna M, Love, Milton S

“…To aid legislators, resource managers, and the general public, this paper summarizes and clarifies some of the issues and options that the federal government…”
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