Results 71 to 80 of about 2,118,018 (212)

Mapping Glacier Bed Topography in Crevassed Regions: A New Passive Seismic Reflection Method Applied to Isunnguata Sermia, West Greenland

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Glacier bed topography is crucial for modeling ice mass loss. However, heavily crevassed regions are challenging to survey using conventional methods, leading to data gaps. We establish a passive seismic approach exploiting naturally occurring crevassing events recorded with a dense seismic array to image the ice–bed interface without spatial ...
Nicolas Paris   +9 more
wiley   +1 more source

Global Characterization of Precipitation Peaks in the Seasonal Cycle

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Precipitation seasonality is commonly described using wet and dry periods, but this framework can obscure multiple rainfall maxima within a rainy season. Here we introduce a global framework for identifying the number of precipitation peaks (NPP) during rainy periods from daily precipitation using optimal harmonic seasonal fits and ...
Zijie Zhao   +2 more
wiley   +1 more source

Biogeochemical and historical drivers of microbial community composition and structure in sediments from Mercer Subglacial Lake, West Antarctica. [PDF]

open access: yesISME Commun, 2023
Davis CL   +15 more
europepmc   +1 more source

Observational Constraints on Sea Salt Contribution to CCN Over the Southern Ocean

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Earth system models exhibit persistent biases in simulating cloud condensation nuclei (CCN) over the Southern Ocean and Antarctica, largely due to inadequate representation of aerosol sources. Here, we present year‐round (January 2023–February 2024) measurements of aerosol hygroscopicity (HTDMA), particle number size distribution (SMPS), and ...
Wei Xu   +16 more
wiley   +1 more source

Distributions and relationships of virio- and picoplankton in the epi-, meso- and bathypelagic zones of the Amundsen Sea, West Antarctica during the austral summer. [PDF]

open access: yesFront Microbiol, 2022
Han M   +16 more
europepmc   +1 more source

Spaceborne Far‐Infrared Signal Simulations Over the Antarctic Plateau With Temperature‐Dependent Ice Cloud Optical Properties

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Longwave cloud radiative effects significantly influence variability in global and regional Earth systems. However, there have been very few, if any, measurements of the far‐infrared (FIR) radiation over the polar regions, where about half of the outgoing longwave radiation is in the FIR spectrum. This motivated the Polar Radiant Energy in the
Tong Ren, Ping Yang, Xianglei Huang
wiley   +1 more source

Pathways and modification of warm water flowing beneath Thwaites Ice Shelf, West Antarctica. [PDF]

open access: yesSci Adv, 2021
Wåhlin AK   +8 more
europepmc   +1 more source

Glacier‐Climate Feedbacks Modulate Last Glacial Maximum Dust Cycle Over the Third Pole

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Geological records indicate only a modest Last Glacial Maximum (LGM) increase in dust deposition over the Third Pole (TP), in contrast to the order‐of‐magnitude rise at high latitudes. Existing climate simulations, which generally prescribe present‐day or no TP glaciers, have struggled to reproduce this muted response.
Qiang Wei   +7 more
wiley   +1 more source

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