Results 11 to 20 of about 1,501,662 (301)
Ice velocity and thickness of the world’s glaciers
Nature Geoscience, 2022 The effect of climate change on water resources and sea-level rise is largely determined by the size of the ice reservoirs around the world and the ice thickness distribution, which remains uncertain. Here, we present a comprehensive high-resolution mapping of ice motion for 98% of the world's total glacier area during the period 2017-2018. We use this
Millan, Romain +3 more
openaire +5 more sources
The radial velocity variations in IC 418 [PDF]
International Astronomical Union Colloquium, 1981 The present observations are part of a search for spectral and radial velocity variations among central stars of planetary nebulae (Méndez 1980). The spectrograms were taken with the image-tube spectrographs of the 1-m and 4-m telescopes at the Cerro Tololo Inter-American Observatory (CTIO). The emulsion was always IIIa-J baked in “forming gas” (N2+H2).
Roberto H. Mendez, Alberto D. Verga
openaire +1 more source
Earth and Space Science, 2022 Fram Strait is the passageway where most drifting sea ice exits the Arctic Ocean into the North Atlantic, and the sea‐ice velocity (SIV) is the most critical parameter for the variability of the sea ice area flux through Fram Strait.
Q. Shi, J. Su, G. Spreen, Q. Yang
doaj +1 more source
Remote Sensing, 2023 Unfrozen free and non-free water between ice crystals in flat and hummock ice in the Yellow River exists as water films with varying contents based on ice temperature.
Zhijun Li +5 more
doaj +1 more source
COMPILING TECHNIQUES FOR EAST ANTARCTIC ICE VELOCITY MAPPING BASED ON HISTORICAL OPTICAL IMAGERY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Ice flow velocity over long time series in East Antarctica plays a vital role in estimating and predicting the mass balance of Antarctic Ice Sheet and its contribution to global sea level rise.
X. Li +17 more
doaj +1 more source
An analytical model for wind-driven Arctic summer sea ice drift [PDF]
The Cryosphere, 2016 The authors present an analytical model for wind-driven free drift of sea ice that allows for an arbitrary mixture of ice and open water. The model includes an ice–ocean boundary layer with an Ekman spiral, forced by transfers of wind-input ...
H.-S. Park, A. L. Stewart
doaj +1 more source
Seasonal variability in Antarctic ice shelf velocities forced by sea surface height variations [PDF]
The Cryosphere, 2023 Antarctica's ice shelves resist the flow of grounded ice towards the ocean through “buttressing” arising from their contact with ice rises, rumples, and lateral margins.
C. Mosbeux +5 more
doaj +1 more source
ICE VELOCITY MEASUREMENT IN EAST ANTARCTICA FROM 1960s TO 1980s BASED ON ARGON AND LANDSAT IMAGERY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Ice flow velocity is a vital parameter for estimating the ice mass balance of glaciers in Antarctica. Especially long time serial observation of the surface velocity is of great significance to assessing the relationship between Antarctic ice materials ...
R. Li +27 more
doaj +1 more source
Thermal controls on ice stream shear margins
Journal of Glaciology, 2021 Ice stream discharge responds to a balance between gravity, basal friction and lateral drag. Appreciable viscous heating occurs in shear margins between ice streams and adjacent slow-moving ice ridges, altering the temperature-dependent viscosity ...
Pierce Hunter +4 more
doaj +1 more source
A Monte-Carlo error analysis for basal sliding velocity calculations [PDF]
, 2006 Since glacier beds are mostly inaccessible, numerical inversion of the surface velocity field provides a valuable method for calculating the basal shear stress and sliding velocity. However, previous theoretical studies (limited either to planar slabs or
Nienow, Peter +2 more
core +1 more source