Search Results - "Rack, W."

Observed platelet ice distributions in Antarctic sea ice: An index for ocean-ice shelf heat flux by Langhorne, P. J., Hughes, K. G., Gough, A. J., Smith, I. J., Williams, M. J. M., Robinson, N. J., Stevens, C. L., Rack, W., Price, D., Leonard, G. H., Mahoney, A. R., Haas, C., Haskell, T. G.

“…Antarctic sea ice that has been affected by supercooled Ice Shelf Water (ISW) has a unique crystallographic structure and is called platelet ice. In this paper…”
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Spatio-temporal analysis of the relationship between LST from MODIS and air temperature in New Zealand by Sohrabinia, M., Zawar-Reza, P., Rack, W.

“…The ambient air temperature (T a ) is an important environmental parameter which can be estimated from satellite observations of the land surface temperature…”
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Toward a robust retrieval of snow accumulation over the Antarctic ice sheet using satellite radar by Dierking, W., Linow, S., Rack, W.

“…The sensitivity of radar measurements to snow accumulation rate is determined by the firn volume characteristics of the ice sheets. Here we present a new…”
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Getting around Antarctica: new high-resolution mappings of the grounded and freely-floating boundaries of the Antarctic ice sheet created for the International Polar Year by Bindschadler, R., Choi, H., Wichlacz, A., Bingham, R., Bohlander, J., Brunt, K., Corr, H., Drews, R., Fricker, H., Hall, M., Hindmarsh, R., Kohler, J., Padman, L., Rack, W., Rotschky, G., Urbini, S., Vornberger, P., Young, N.

“…Two ice-dynamic transitions of the Antarctic ice sheet – the boundary of grounded ice features and the freely-floating boundary – are mapped at 15-m resolution…”
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Variability in the Distribution of Fast Ice and the Sub‐ice Platelet Layer Near McMurdo Ice Shelf by Brett, G. M., Irvin, A., Rack, W., Haas, C., Langhorne, P. J., Leonard, G. H.

“…Variability in the volume of supercooled Ice Shelf Water outflow in McMurdo Sound is reflected in the thickness and distribution of fast ice and the sub‐ice…”
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The sub-ice platelet layer and its influence on freeboard to thickness conversion of Antarctic sea ice by Price, D, Rack, W, Langhorne, P. J, Haas, C, Leonard, G, Barnsdale, K

“…This is an investigation to quantify the influence of the sub-ice platelet layer on satellite measurements of total freeboard and their conversion to thickness…”
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Fast Ice Thickness Distribution in the Western Ross Sea in Late Spring by Langhorne, P. J., Haas, C., Price, D., Rack, W., Leonard, G. H., Brett, G. M., Urbini, S.

“…We present a 700 km airborne electromagnetic survey of late‐spring fast ice and sub‐ice platelet layer (SIPL) thickness distributions from McMurdo Sound to…”
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Tidally induced velocity variations of the Beardmore Glacier, Antarctica, and their representation in satellite measurements of ice velocity by Marsh, O. J, Rack, W, Floricioiu, D, Golledge, N. R, Lawson, W

“…Ocean tides close to the grounding line of outlet glaciers around Antarctica have been shown to directly influence ice velocity, both linearly and…”
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Direct reconstruction of glacier bedrock from known free surface data using the one-dimensional shallow ice approximation by Gessese, A., Heining, C., Sellier, M., Mc Nish, R., Rack, W.

“…Glaciers are an important component of the climate system that respond sensitively to climate change. Small glaciers respond more quickly to changing weather…”
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A Spatially Adjusted Elevation Model in Dronning Maud Land, Antarctica, Based on Differential SAR Interferometry by Drews, R., Rack, W., Wesche, C., Helm, V.

“…In this paper, a new digital elevation model (DEM) is derived for the ice sheet in western Dronning Maud Land, Antarctica. It is based on differential…”
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Winter accumulation in the percolation zone of Greenland measured by airborne radar altimeter by Helm, V., Rack, W., Cullen, R., Nienow, P., Mair, D., Parry, V., Wingham, D. J.

“…We here determine the surface elevation and the winter snow accumulation rate along a profile in the percolation zone of the Greenland Ice Sheet from data…”
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Snow accumulation and compaction derived from GPR data near Ross Island, Antarctica by Kruetzmann, N. C., Rack, W., McDonald, A. J., George, S. E.

“…We present an improved method for estimating accumulation and compaction rates of dry snow in Antarctica with ground penetrating radar (GPR). Using an estimate…”
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Retrieving snowpack properties and accumulation estimates from a combination of SAR and scatterometer measurements by Rotschky, G., Rack, W., Dierking, W., Oerter, H.

“…This study combines two satellite radar techniques, low-resolution C-/Ku-band scatterometer and high-resolution C-band synthetic aperture radar (SAR) for…”
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GEOSTATISTICAL ANALYSIS OF SURFACE TEMPERATURE AND IN-SITU SOIL MOISTURE USING LST TIME-SERIES FROM MODIS by Sohrabinia, M., Rack, W., Zawar-Reza, P.

“…The objective of this analysis is to provide a quantitative estimate of the fluctuations of land surface temperature (LST) with varying near surface soil…”
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ASSESSMENT OF SEA ICE FREEBOARD AND THICKNESS IN MCMURDO SOUND, ANTARCTICA, DERIVED BY GROUND VALIDATED SATELLITE ALTIMETER DATA by Price, D., Rack, W., Haas, C., Langhorne, P., Marsh, O.

“…This investigation employs the use of ICESat to derive freeboard measurements in McMurdo Sound in the western Ross Sea, Antarctica, for the time period…”
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Grounding‐Zone Flow Variability of Priestley Glacier, Antarctica, in a Diurnal Tidal Regime by Drews, R., Wild, C. T., Marsh, O. J., Rack, W., Ehlers, T. A., Neckel, N., Helm, V.

“…Tidal modulation of ice streams and their adjacent ice shelves is a real‐world experiment to understand ice‐dynamic processes. We observe the dynamics of…”
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Snow-driven uncertainty in CryoSat-2-derived Antarctic sea ice thickness – insights from McMurdo Sound by Price, Daniel, Soltanzadeh, Iman, Rack, Wolfgang, Dale, Ethan

“…Knowledge of the snow depth distribution on Antarctic sea ice is poor but is critical to obtaining sea ice thickness from satellite altimetry measurements of…”
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Satellite altimetry detection of ice-shelf-influenced fast ice by Brett, Gemma M, Price, Daniel, Rack, Wolfgang, Langhorne, Patricia J

“…The outflow of supercooled Ice Shelf Water from the conjoined Ross and McMurdo ice shelf cavity augments fast ice thickness and forms a thick sub-ice platelet…”
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Seasonal and diurnal variability of sub-ice platelet layer thickness in McMurdo Sound from electromagnetic induction sounding by Brett, Gemma M, Leonard, Greg H, Rack, Wolfgang, Haas, Christian, Langhorne, Patricia J, Robinson, Natalie J, Irvin, Anne

“…Here, we present observations of temporal variability of sub-ice platelet layer over seasonal and diurnal timescales under Ice Shelf Water-influenced fast ice…”
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Differential interferometric synthetic aperture radar for tide modelling in Antarctic ice-shelf grounding zones by Wild, Christian T, Marsh, Oliver J, Rack, Wolfgang

“…Differential interferometric synthetic aperture radar (DInSAR) is an essential tool for detecting ice-sheet motion near Antarctica's oceanic margin. These…”
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