Results 41 to 50 of about 141,462 (300)

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (δ13CPOC) and associated biogeochemical parameters in sea ice and surface waters provides an insight into the factors affecting δ13CPOC in the ...
Carson, D. S., Ganeshram, R.S., R. S. Ganeshram, S. F. Henley, A. E. Fallick, Fallick, A.E., J. Dougans, A. Clarke, Ganeshram, R. S.; id_orcid, Annett, A.L., Annett, Amber, Weston, K., Henley, S.F., Annett, A. L., Ganeshram, R. S., Carson, D.S., D. S. Carson, K. Weston, Dougans, J., Fallick, A. E., A. L. Annett, Crosta, X., A. Tait, X. Crosta, Henley, S. F., Tait, A., Clarke, A.   +26 more
core   +1 more source

Resolutional Analysis of Multiplicative High-Frequency Speckle Noise Based on SAR Spatial De-Speckling Filter Implementation and Selection

Remote Sensing, 2019
Due to the inherent characteristics of the electromagnetic wave scattering phenomenon, synthetic aperture radar (SAR) images are directly degraded by high-frequency multiplicative speckle (HMS) noise, which makes image de-speckling filter application and
Iman Heidarpour Shahrezaei, Hyun-cheol Kim   +1 more
doaj   +1 more source

Active subglacial lakes and channelized water flow beneath the Kamb Ice Stream [PDF]

The Cryosphere, 2016
We identify two previously unknown subglacial lakes beneath the stagnated trunk of the Kamb Ice Stream (KIS). Rapid fill-drain hydrologic events over several months are inferred from surface height changes measured by CryoSat-2 altimetry and indicate ...
B.-H. Kim, C.-K. Lee, K.-W. Seo, W. S. Lee, T. Scambos   +4 more
doaj   +1 more source

Airborne radar evidence for tributary flow switching in Institute Ice Stream, West Antarctica: implications for ice sheet configuration and dynamics [PDF]

, 2015
Despite the importance of ice streaming to the evaluation of West Antarctic Ice Sheet (WAIS) stability we know little about mid- to long-term dynamic changes within the Institute Ice Stream (IIS) catchment.
Martin J. Siegert, Hugh F. J. Corr, Corr, Hugh, Bingham, RG, Woodward, John, Ross, Neil, Ross, N, Dunning, SA, Corr, Hugh F.J., Winter, K, Siegert, MJ, Robert G. Bingham, Winter, Kate, Dunning, Stuart, John Woodward, Neil Ross, Siegert, Martin, Corr, HFJ, Kate Winter, Dunning, Stuart A., Siegert, Martin J., Stuart A. Dunning, Bingham, Robert G., Woodward, J   +23 more
core   +1 more source

A Feasibility Study of Sea Ice Motion and Deformation Measurements Using Multi-Sensor High-Resolution Optical Satellite Images

Remote Sensing, 2017
Sea ice motion and deformation have generally been measured using low-resolution passive microwave or mid-resolution radar remote sensing datasets of daily (or few days) intervals to monitor long-term trends over a wide polar area. This feasibility study
Chang-Uk Hyun, Hyun-cheol Kim
doaj   +1 more source

An assessment of key model parametric uncertainties in projections of Greenland Ice Sheet behavior [PDF]

, 2012
Lack of knowledge about the values of ice sheet model input parameters introduces substantial uncertainty into projections of Greenland Ice Sheet contributions to future sea level rise.
Stone, Emma J., N. Kirchner, K. Keller, Keller, K., Greve, Ralf, Applegate, P. J., Greve, R., R. Greve, Keller, Klaus, Kirchner, N., Applegate, Patrick J.,, Applegate, Patrick J., Kirchner, Nina, Stone, EJ, Kirchner, Nina,, E. J. Stone, Stone, E. J., P. J. Applegate   +17 more
core   +1 more source

Sea Ice Elevation in the Western Weddell Sea, Antarctica: Observations From Field Campaign

Earth and Space Science, 2022
Sea ice elevation is crucial in the characterization of three‐dimensional (3D) sea ice patterns, providing physical insights to advance sea ice dynamic models. Moreover, how sea ice elevation may be related to the ocean geophysical environment is still a
Lanqing Huang, Irena Hajnsek, Son V. Nghiem   +2 more
doaj   +1 more source

Improving the spatial distribution of modeled Arctic sea ice thickness

, 2005
The spatial distribution of ice thickness/draft in the Arctic Ocean is examined using a sea ice model. A comparison of model predictions with submarine observations of sea ice draft made during cruises between 1987 and 1997 reveals that the model has the
Laxon, SW, Miller, PA, Feltham, DL, Laxon, S. W., Feltham, D. L., Miller, P. A.   +5 more
core   +1 more source

Ice sheet extent and early deglacial history of the southwestern sector of the Greenland ice sheet [PDF]

, 2009
The offshore and coastal geomorphology of southwest Greenland records evidence for the advance and decay of the Greenland Ice Sheet during the Last Glacial Maximum.
Xu, S., Davies, Bethan J., Schnabel, C., Xu, Sheng, Sheng, X., Simpson, M.J.R., Simpson., M.J.R, Huybrechts, P., Roberts, David H., Long, A.J., Huybrechts, Philipe, Long, Antony J., Davies, B., Simpson, Matthew J.R., Schnabel, Christoph, Roberts, D.H., Davies, B.J.   +16 more
core   +1 more source

Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors

Advances in Climate Change Research, 2021
Sea ice conditions in the Canadian Arctic Archipelago (CAA) play a key role in the navigation of the Northwest Passage (NWP). Limited by observed sea ice thickness data, the research of temporal and spatial variation of sea ice in the NWP is insufficient.
Xin-Yi Shen, Yu Zhang, Chang-Sheng Chen, Song Hu, Dan-Ya Xu, Wei-Zeng Shao, Liang Chang, Gui-Ping Feng   +7 more
doaj   +1 more source