Results 41 to 50 of about 1,001 (183)

AUTOMATYCZNA DETEKCJA I LOKALIZACJA WSTRZĄSÓW MIKROSEJSMICZNYCH NA LODOWCU HANSA NA SPITSBERGENIE [PDF]

Przegląd Geofizyczny
The article presents preliminary results of seismicity studies of Hans Glacier in Spitsbergen. Data from the period 26.07-02.08.2021 were recorded using a network of 8 single-component, short-period geophones located on the surface of the glacier.
Mateusz Olszewski, Wojciech Gajek
doaj   +1 more source

The Temporal Imperative: Palaeo‐Proxies and Nature‐Based Solutions for Resilient Natural Inland Wetland Conservation and Management in Southeast Asia—A Systematic Review

Ecological Management &Restoration, Volume 27, Issue 3, September 2026.
ABSTRACT Natural inland wetlands in Southeast Asia provide key biodiversity, hydrological, carbon‐storage and livelihood functions, but are increasingly affected by land‐use change, fire, hydrological modification and climate change and variability.
Thunyapat Sattraburut, Sirasit Vongvassana, Thamarat Phutthai   +2 more
wiley   +1 more source

Persons Enough to Punish: Illegality, Deportability and the Hierarchy of Personhood in US Immigration

International Migration, Volume 64, Issue 5, September 2026.
ABSTRACT This paper argues that contemporary United States immigration law and policy construct a hierarchy of personhood for undocumented migrants which better explains their status as opposed to a classic binary framework of citizen/migrant. It develops a four‐layer conceptual framework of personhood including baseline personhood, membership ...
David Niculae
wiley   +1 more source

Aoraki Mount Cook: Environmental Change on an Iconic Mountaineering Route

Mountain Research and Development, 2018
Aoraki Mount Cook is New Zealand's highest mountain and a popular destination for climbers. This study combined historical accounts, photos, and geophysical surveys with modern-day spatial analysis, popular narratives, and interviews to explore how ...
Heather Purdie, Tim Kerr
doaj   +1 more source

Satellite Mapping of the Moulin Distribution Across the Entire Greenland Ice Sheet

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Moulins drain meltwater from the surface of the Greenland Ice Sheet (GrIS), affecting subglacial hydrology. However, the moulin distribution across the entire GrIS remains unclear. Using 10‐m Sentinel‐2 imagery from the summer of 2019, we manually mapped GrIS‐wide major moulins, excluding undetectable minor moulins.
Yuhan Wang, Kang Yang, Jianing Wei, Wenzhuo Zhang, Dongyang Du, Wensong Zhang   +5 more
wiley   +1 more source

Teleseismic S‐Wave Coda Autocorrelation and vp/vs ${v}_{p}/{v}_{s}$ Distribution Over the Antarctic Ice Sheet

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Accurate characterization of the compressional to shear (P‐to‐S) wave‐speed ratio (vp/vs ${v}_{p}/{v}_{s}$) within the Antarctic Ice Sheet (AIS) is crucial for understanding its internal structure, mechanical stability, and vulnerability to a changing climate.
Ammu Sanjayan, Thanh‐Son Phạm, Hrvoje Tkalčić   +2 more
wiley   +1 more source

Numerical Modeling Shows Increased Fracturing Due to Melt-Undercutting Prior to Major Calving at Bowdoin Glacier

Frontiers in Earth Science, 2020
Projections of future ice sheet mass loss and thus sea level rise rely on the parametrization of iceberg calving in ice sheet models. The interconnection between submarine melt-induced undercutting and calving is still poorly understood, which makes ...
Eef C. H. van Dongen, Jan A. Åström, Guillaume Jouvet, Joe Todd, Douglas I. Benn, Martin Funk   +5 more
doaj   +1 more source

Assessment of a Finite Volume Discretization of the Horizontal Pressure Gradient Force Beneath Sloping Ice Shelves

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract The accurate computation of pressure gradients in ocean models is essential for simulating ocean and climate processes. Inaccurate computation can result in spurious velocities on the order of real ocean flows, particularly in quiescent ice shelf cavities.
C. K. Yung, R. W. Hallberg, A. Adcroft, A. K. Morrison   +3 more
wiley   +1 more source

SWOT High‐Rate Raster Data Reveals Antarctic Ice Shelf Motion and Change in Response to Ocean and Ice Dynamics

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The NASA/CNES Surface Water and Ocean Topography (SWOT) swath‐mapping radar altimetry satellite mission, launched in December 2022, provides repeat‐track coverage to about ±78.2° latitude every 21 days, sampling many of Antarctica's most dynamic ice shelves that play key roles in constraining mass loss from the grounded ice sheet ...
S. L. Howard, Z. S. Katz, L. Padman, M. R. Siegfried, E. Abrahams, T. M. Snow   +5 more
wiley   +1 more source

A Vast Valley Network Beneath the Greenland Ice Sheet

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Mapping subglacial topography along the margin of the Greenland Ice Sheet was revolutionized by reconciling measurements of ice thickness and surface velocity using the principle of mass conservation. Despite evidence that many subglacial valleys resolved by that method extend upstream, it cannot be applied to the ice sheet's slower‐flowing ...
Allison M. Chartrand, Joseph A. MacGregor, Mathieu Morlighem, Olga V. Sergienko, Helen Ockenden, William T. Colgan, Gong Cheng   +6 more
wiley   +1 more source