Results 291 to 300 of about 2,868,735 (385)

Community‐driven variations in snow algae color modulate snow albedo reduction

open access: yesNew Phytologist, Volume 249, Issue 4, Page 1739-1752, February 2026.
Summary Snow algae blooms visibly alter snow color and surface energy balance, yet the biological basis of this variability remains unclear. We investigated how pigment composition and community structure shape the optical properties of snow algae blooms of distinct colors – red, orange, and green – co‐occurring within the same snowfield in Glacier ...
Pablo Almela   +4 more
wiley   +1 more source

Autonomic regulation across sleep and wake during an Antarctic overwintering. [PDF]

open access: yesSci Rep
Tortello C   +8 more
europepmc   +1 more source

An Efficient Solid Phase Extraction Method for Purification and Analysis of Compound‐Specific Plant Sugar Stable Hydrogen Isotope Values

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 2, 30 January 2026.
ABSTRACT Rationale The stable hydrogen isotope composition (δ2H) of plant compounds can serve as environmental or metabolic proxies, but interpretations are hindered by insufficient mechanistic understanding. This can be improved by analyzing the δ2H values of metabolic intermediates, such as sucrose, which is the direct substrate of cellulose and a ...
Selina Hugger   +3 more
wiley   +1 more source

Dynamic Boundaries of Antarctic Active Subglacial Lakes Reveal Underestimated Water Volume Change and Overestimated Lakebed Active Area

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract This study revisited 158 documented active subglacial lakes across Antarctica, applying a height‐change anomaly delineation algorithm to CryoSat‐2 and ICESat‐2 satellite altimetry data to assemble a 14.75‐year (2010.5–2025.25) time series of active subglacial lake dynamics.
W. Sauthoff   +3 more
wiley   +1 more source

Glacial Expansion of Deoxygenation in the Arabian Sea

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The mechanisms by which ongoing climate change influences ocean Oxygen Minimum Zones (OMZs) are insufficiently understood, making it essential to examine their long‐term variations under substantial climatic forcing. Here, we present the first planktic foraminifera iodine‐to‐calcium records in two Arabian Sea sediment cores: one located within
Deepak Kumar Rai   +6 more
wiley   +1 more source

Antarctic seep emergence and discovery in the shallow coastal environment. [PDF]

open access: yesNat Commun
Seabrook S   +7 more
europepmc   +1 more source

Wind‐Driven Coastal Polynya Variability Drives Decadal Ice‐Shelf Melt Variability in the Amundsen Sea

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The ice shelves in the Amundsen Sea are being melted rapidly by warm Circumpolar Deep Water (CDW), causing sea‐level rise. Ice‐shelf melt variability is controlled by the speed of a shelf‐break undercurrent which transports CDW onto the continental shelf. We study decadal variability of the undercurrent and ice‐shelf melting using new regional
Michael Haigh   +3 more
wiley   +1 more source

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