Search Results - "Goldberg, D N"

Limited Impact of Thwaites Ice Shelf on Future Ice Loss From Antarctica by Gudmundsson, G. H., Barnes, J. M., Goldberg, D. N., Morlighem, M.

“…Thwaites Ice Shelf (TWIS), the floating extension of Thwaites Glacier, West Antarctica, is changing rapidly and may completely disintegrate in the near future…”
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Effect of near-terminus subglacial hydrology on tidewater glacier submarine melt rates by Slater, D. A., Nienow, P. W., Cowton, T. R., Goldberg, D. N., Sole, A. J.

“…Submarine melting of Greenlandic tidewater glacier termini is proposed as a possible mechanism driving their recent thinning and retreat. We use a general…”
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Parameter and state estimation with a time-dependent adjoint marine ice sheet model by Goldberg, D. N, Heimbach, P

“…To date, assimilation of observations into large-scale ice models has consisted predominantly of time-independent inversions of surface velocities for basal…”
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A model for tidewater glacier undercutting by submarine melting by Slater, D. A., Nienow, P. W., Goldberg, D. N., Cowton, T. R., Sole, A. J.

“…Dynamic change at the marine‐terminating margins of the Greenland Ice Sheet may be initiated by the ocean, particularly where subglacial runoff drives vigorous…”
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Committed retreat of Smith, Pope, and Kohler Glaciers over the next 30 years inferred by transient model calibration by Goldberg, D. N, Heimbach, P, Joughin, I, Smith, B

“…A glacial flow model of Smith, Pope and Kohler Glaciers is calibrated by means of control methods against time varying, annually resolved observations of ice…”
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The Response of Ice Sheets to Climate Variability by Snow, K., Goldberg, D. N., Holland, P. R., Jordan, J. R., Arthern, R. J., Jenkins, A.

“…West Antarctic Ice Sheet loss is a significant contributor to sea level rise. While the ice loss is thought to be triggered by fluctuations in oceanic heat at…”
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Investigation of land ice-ocean interaction with a fully coupled ice-ocean model: 1. Model description and behavior by Goldberg, D. N., Little, C. M., Sergienko, O. V., Gnanadesikan, A., Hallberg, R., Oppenheimer, M.

“…Antarctic ice shelves interact closely with the ocean cavities beneath them, with ice shelf geometry influencing ocean cavity circulation, and heat from the…”
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Investigation of land ice-ocean interaction with a fully coupled ice-ocean model: 2. Sensitivity to external forcings by Goldberg, D. N., Little, C. M., Sergienko, O. V., Gnanadesikan, A., Hallberg, R., Oppenheimer, M.

“…A coupled ice stream‐ice shelf‐ocean cavity model is used to assess the sensitivity of the coupled system to far‐field ocean temperatures, varying from 0.0 to…”
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Data assimilation using a hybrid ice flow model by Goldberg, D N, Sergienko, O V

“…Hybrid models, or depth-integrated flow models that include the effect of both longitudinal stresses and vertical shearing, are becoming more prevalent in…”
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How Accurately Should We Model Ice Shelf Melt Rates? by Goldberg, D. N., Gourmelen, N., Kimura, S., Millan, R., Snow, K.

“…Assessment of ocean‐forced ice sheet loss requires that ocean models be able to represent sub‐ice shelf melt rates. However, spatial accuracy of modeled melt…”
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Alternative ice shelf equilibria determined by ocean environment by Sergienko, O. V., Goldberg, D. N., Little, C. M.

“…Dynamic and thermodynamic regimes of ice shelves experiencing weak (≲1 m year−1) to strong (~10 m year−1) basal melting in cold (bottom temperature close to…”
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The Relative Impacts of Initialization and Climate Forcing in Coupled Ice Sheet‐Ocean Modeling: Application to Pope, Smith, and Kohler Glaciers by Goldberg, D. N., Holland, P. R.

“…Coupled ice sheet‐ocean models are beginning to be used to study the response of ice sheets to ocean warming. Initializing an ice‐ocean model is challenging…”
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Chlorophyll Production in the Amundsen Sea Boosts Heat Flux to Atmosphere and Weakens Heat Flux to Ice Shelves by Twelves, A. G., Goldberg, D. N., Holland, P. R., Henley, S. F., Mazloff, M. R., Jones, D. C.

“…The Amundsen Sea in West Antarctica features rapidly thinning ice shelves, large polynyas, and sizable spring phytoplankton blooms. Although considerable…”
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Bathymetric Influences on Antarctic Ice‐Shelf Melt Rates by Goldberg, D. N., Smith, T. A., Narayanan, S. H. K., Heimbach, P., Morlighem, M.

“…Ocean bathymetry exerts a strong control on ice sheet‐ocean interactions within Antarctic ice‐shelf cavities, where it can limit the access of warm, dense…”
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Self‐Shading and Meltwater Spreading Control the Transition From Light to Iron Limitation in an Antarctic Coastal Polynya by Twelves, A. G., Goldberg, D. N., Henley, S. F., Mazloff, M. R., Jones, D. C.

“…Dotson Ice Shelf (DIS) in West Antarctica is undergoing rapid basal melting driven by intrusions of warm, saline Circumpolar Deep Water (CDW) onto the…”
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Stick-slip motion of an Antarctic Ice Stream: The effects of viscoelasticity by Goldberg, D. N., Schoof, C., Sergienko, O. V.

“…Stick‐slip behavior is a distinguishing characteristic of the flow of Whillans Ice Stream (Siple Coast, Antarctica). Distinct from stick slip on Northern…”
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Cyclic GMP Metabolism and Involvement in Biological Regulation by Goldberg, N D, Haddox, M K

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Evidence for compartmentalized adenylate kinase catalysis serving a high energy phosphoryl transfer function in rat skeletal muscle by ZELEZNIKAR, R. J, HEYMAN, R. A, GRAEFF, R. M, WALSETH, T. F, DAWIS, S. M, BUTZ, E. A, GOLDBERG, N. D

“…The first characterization of the kinetics and subcellular compartmentation of adenylate kinase activity in intact muscle has been accomplished using rat…”
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Light-induced increases in cGMP metabolic flux correspond with electrical responses of photoreceptors by Ames, A, Walseth, T F, Heyman, R A, Barad, M, Graeff, R M, Goldberg, N D

“…The metabolism of photoreceptor cGMP and the relationship of its light-sensitive regulation to rhodopsin photoisomerization and to the photoreceptor electrical…”
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Regulation of cyclic GMP metabolism in toad photoreceptors. Definition of the metabolic events subserving photoexcited and attenuated states by Dawis, S M, Graeff, R M, Heyman, R A, Walseth, T F, Goldberg, N D

“…Photoreceptor metabolism of cGMP and its regulation were characterized in isolated toad retinas by determining the intensity and time dependence of…”
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