Results 191 to 200 of about 38,278 (336)

The Negative Elevation‐Dependent Pattern of Non‐Growing Season CO2 Loss From Alpine Frozen Ground

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Substantial organic carbon stores in the soil of high‐elevation regions are vulnerable to rapid warming. The “Third Pole”, encompassing the Tibetan Plateau and adjacent regions, is home to the largest alpine permafrost on the Earth. Through analysis of 118 eddy covariance and chamber observations in the non‐growing season—a unique time window ...
Zhaoheng Deng   +7 more
wiley   +1 more source

Cyclic Effective Pressure Loading Impacts Glacial Slip Over Deformable Beds

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Tidal fluctuations at the grounding zones of marine‐terminating glaciers induce oscillations in effective pressure at the glacier bed, altering ice‐till coupling and glacial slip. Glaciers slipping atop deformable beds with oscillatory pressure fluctuations can generate a transient porewater pressure feedback within the underlying till ...
N. Morgan‐Witts   +3 more
wiley   +1 more source

Beaufort Gyre Liquid Freshwater Content Change Under Greenhouse Warming From an Eddy‐Resolving Climate Simulation

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Future changes in the Beaufort Gyre liquid freshwater content (LFWC) are important for the local and global climate. However, traditional climate models cannot resolve oceanic and atmospheric eddies that are critical to the LFWC variations.
Xuan Shan   +3 more
wiley   +1 more source

River Avulsion Precursors Encoded in Alluvial Ridge Geometry

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract River avulsions generate catastrophic floods that threaten communities, ecosystems, and infrastructure worldwide. Alluvial ridges—elevated regions of near‐channel topography—are thought to precede avulsions, yet their spatial patterns and relationship to avulsion impact remain poorly understood. We analyzed pre‐event topographic cross‐sections
J. H. Gearon, D. A. Edmonds
wiley   +1 more source

Advancing the Understanding of Snow Accumulation, Melting, and Associated Thermal Insulation Using Spatially Dense Snow Depth and Temperature Time Series

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Snow thermal insulation is a critical factor influencing ground thermal dynamics and associated biogeochemical processes. We analyzed the spatiotemporal variability of snow accumulation, melting, and thermal insulation dynamics using spatially dense, collocated snow depth and ground interface temperature time series over two consecutive years.
Chen Wang   +8 more
wiley   +1 more source

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