Results 61 to 70 of about 383 (171)

A Digital Radio Echo-Sounding and Navigation Recording System

open access: yes, 1987
The Scott Polar Research Institute (SPRI) Mk IV 60 MHz radio echo-sounding (RES) system has proven itself to be a most effective and versatile tool in glaciology.
A.P.R. Cooper, M.R. Gorman
core   +2 more sources

Quantifying Under‐Ice Phytoplankton Blooms in the Changing Arctic and Southern Oceans

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Historically, polar marine phytoplankton were thought to primarily grow after the seasonal breakup of sea ice, when there is plentiful light available in the surface ocean. However, observations of substantial productivity under sea ice has called this assumption into question.
Courtney M. Payne   +4 more
wiley   +1 more source

Resolving radiostratigraphy with squinted synthetic aperture radar focusing

open access: yesJournal of Glaciology
Englacial layers are a product of historic accumulation and are reshaped by ice deformation. Hence, radio-echo sounding (RES), which can resolve englacial layering, has been adopted as an observational tool to infer ice age and ice dynamics from ice ...
Benjamin H. Hills   +4 more
doaj   +1 more source

Rates of Sea‐Level Rise Are Highly Sensitive to Ice Viscosity Parameters in Model Benchmarks

open access: yesAGU Advances, Volume 7, Issue 2, April 2026.
Abstract Glacier flow plays a major role in current and future rates of globally averaged sea‐level rise. The viscosity of glacial ice, controlling the rate of flow, decreases as stress increases and is highly sensitive to the value of the stress exponent, n $n$, in the constitutive equation for viscous flow.
D. F. Martin   +5 more
wiley   +1 more source

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

open access: yesAGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

Simulation of cirque glacier distribution [PDF]

open access: yes, 1982
Not ...
Gill, Jasbir S., Gill, J.S.
core  

Annals of Glaciology

open access: yes, 2020
The Antarctic Impulsive Transient Antenna (ANITA) balloon experiment was designed to detect radio signals initiated by high-energy neutrinos and cosmic ray (CR) air showers.
Kusenko, Alexander   +5 more
core   +1 more source

Reflecting Sub-Ice Surfaces Observed by Radio Echo Sounding System

open access: yes, 2003
The reflection coefficient (R) at the interface of two media provides information on their electromagnetic nature. If the first medium is known, e.g.
Tabacco, I. E.   +5 more
core   +1 more source

Accumulation Studies at a High Elevation Glacier Site in Central Karakoram

open access: yesAdvances in Meteorology, 2014
The precipitation conditions in central Karakoram are investigated on the basis of snow samples from high elevated snow pits at Urdok glacier from 2006 and the analysis of atmospheric transport trajectories in combination with the general, large scale ...
Christoph Mayer   +6 more
doaj   +1 more source

Grounding‐Zone Wedge Formation and Effects on Ice‐Stream Retreat and Stability

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Ice streams deposit sediment at their grounding lines, where ice reaches flotation. Grounding Zone Wedge (GZW) deposits indicate stillstands in past grounding‐line retreat, and are thought to stabilize grounding lines by reducing local water depth, restricting ice flow. However, the mechanisms of GZW growth are uncertain, as are the effects of
John Erich Christian   +5 more
wiley   +1 more source

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