Results 71 to 80 of about 176,859 (335)

An Improved Algorithm for the Retrieval of the Antarctic Sea Ice Freeboard and Thickness from ICESat-2 Altimeter Data

Remote Sensing, 2022
ICESat-2 altimeter data could be used to estimate sea ice freeboard and thickness values with a higher measuring accuracy than that achievable with data provided by previous altimeter satellites.
Xiaoping Pang, Yizhuo Chen, Qing Ji, Guoyuan Li, Lijian Shi, Musheng Lan, Zeyu Liang   +6 more
doaj   +1 more source

IceBird Summer 2022 Campaign - Sea ice surveys with Polar 6 from Station Nord [PDF]

, 2022
Changes in Arctic sea ice thickness are the result of complex interactions of the dynamic and variable ice cover with atmosphere and ocean. The availability of satellite-based estimates of Arctic-wide sea ice thickness changes is limited to the winter ...
Birnbaum, Gerit, Krumpen, Thomas, Ludwig, Valentin, Petersen, Christoph   +3 more
core  

The relation between sea ice thickness and freeboard in the Arctic [PDF]

The Cryosphere, 2010
Abstract. Retrieval of Arctic sea ice thickness from radar altimeter freeboard data, to be provided by CryoSat-2, requires observational data to verify the relation between the two variables. In this study in-situ ice and snow data from 689 observation sites obtained during the Sever expeditions in the 1980s have been used to establish an empirical ...
Alexandrov, Vitaly, Sandven, Stein, Johannessen, Ola M, Wåhlin, Johan   +3 more
openaire   +5 more sources

Empirical sea ice thickness retrieval during the freeze-up period from SMOS high incident angle observations [PDF]

The Cryosphere, 2014
Sea ice thickness information is important for sea ice modelling and ship operations. Here a method to detect the thickness of sea ice up to 50 cm during the freeze-up season based on high incidence angle observations of the Soil Moisture and ...
M. Huntemann, G. Heygster, L. Kaleschke, T. Krumpen, M. Mäkynen, M. Drusch   +5 more
doaj   +1 more source

When Will Arctic Sea Ice Disappear? Projections of Area, Extent, Thickness, and Volume [PDF]

arXiv, 2022
Rapidly diminishing Arctic summer sea ice is a strong signal of the pace of global climate change. We provide point, interval, and density forecasts for four measures of Arctic sea ice: area, extent, thickness, and volume. Importantly, we enforce the joint constraint that these measures must simultaneously arrive at an ice-free Arctic.
arxiv  

Sea ice thickness distribution in the Arctic Ocean

Cold Regions Science and Technology, 1987
Abstract Data from the unclassified literature were reviewed to determine the regional and seasonal distributions of sea ice thickness, pressure ridging statistics, frequency of occurrence of polynyas, and keel/sail height ratios. Seasonal and regional maps and histograms of these properties were constructed.
Bourke, Robert H., Garrett, Robert P.
openaire   +3 more sources

Seasonal and Interannual Variations in Sea Ice Thickness in the Weddell Sea, Antarctica (2019–2022) Using ICESat-2

Remote Sensing
The sea ice extent in the Weddell Sea exhibited a positive trend from the start of satellite observations in 1978 until 2016 but has shown a decreasing trend since then.
Mansi Joshi, Alberto M. Mestas-Nuñez, Stephen F. Ackley, Stefanie Arndt, Grant J. Macdonald, Christian Haas   +5 more
doaj   +1 more source

A direct helicopter EM sea ice thickness inversion, assessed with synthetic and field data [PDF]

, 2007
Accuracy and precision of helicopter electromagneticHEM sounding are the essential parameters for HEM seaicethickness profiling. For sea-ice thickness research, thequality of HEM ice thickness estimates must be better than10 cm to detect potential ...
Haas, Christian, Pfaffling, A., Reid, J. E.   +2 more
core  

Consistent and contrasting decadal Arctic sea ice thickness predictions from a highly optimized sea ice model [PDF]

, 2007
[1] Decadal hindcast simulations of Arctic Ocean sea ice thickness made by a modern dynamic-thermodynamic sea ice model and forced independently by both the ERA-40 and NCEP/NCAR reanalysis data sets are compared for the first time.
Arctic Climate Impact Assessment, Bitz, Bromwich, Bromwich, Cavalieri, Comiso, Curry, Daniel L. Feltham, Flato, Fowler, Hibler, Hibler, Hilmer, Hunke, Hunke, Hunke, Jordan, Kalnay, Köberle, Laxon, Lindsay, Liu, Miller, Miller, Parkinson, Parkinson, Paul A. Miller, Perovich, Rigor, Rothrock, Rothrock, Rothrock, Seymour W. Laxon, Simmons, Smith, Stroeve, Thorndike, Vowinckel, Wensnahan, Wilchinsky, Yu, Zhang, Zhang, Zhang, Zhang   +44 more
core   +1 more source

STAT3 expression is reduced in cardiac pericytes in HFpEF and its loss reduces cellular adhesion and induces pericyte senescence

FEBS Letters, EarlyView.
Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek, Ariane Fischer, Mariano Ruz Jurado, Anita Tamiato, Tara Procida‐Kowalski, Jochen Wilhelm, Dennis Hecker, Maximilian Merten, Felicitas Escher, Badder Kattih, Valentina Puntmann, David John, Marcel H. Schulz, Eike Nagel, Stefanie Dimmeler, Guillermo Luxán   +15 more
wiley   +1 more source