Results 51 to 60 of about 320 (126)

High benthic community respiration and ecosystem response to phytodetrital input in a subpolar fjord on the West Antarctic Peninsula

Limnology and Oceanography, Volume 69, Issue 11, Page 2610-2623, November 2024.
Abstract Glaciomarine fjords dominate the coastal margin of the West Antarctic Peninsula. Studies in similar habitats in the Arctic have shown that benthic biodiversity and ecosystem functioning in inner and middle fjord basins are reduced by turbidity and sedimentation disturbance caused by climate warming–enhanced glacial melting.
Marta M. Cecchetto, Craig R. Smith, Clifton C. Nunnally, Andrew K. Sweetman   +3 more
wiley   +1 more source

The Upper Devonian to Lower Carboniferous Billefjorden Group on Bjørnøya, Svalbard, and Its North‐Eastern Greenlandic Provenance

Basin Research, Volume 36, Issue 6, November–December 2024.
First detrital zircon provenance study of the Billefjorden Group on Bjørnøya, Svalbard. The East Greenland Caledonides formed a long‐lived source terrain in northeast Greenland. Syn‐sedimentary faulting, drainage shifts and changing fluvial styles have little influence on detrital zircon age spectrum.
Julian Janocha, Sten‐Andreas Grundvåg, Daniel F. Stockli   +2 more
wiley   +1 more source

Conditions influencing incoming global solar radiation in Hornsund (Spitsbergen) in spring 2015

Polish Polar Research, 2017
This article analyses the conditions affecting the incoming global solar radiation in Hornsund (Spitsbergen) in spring of 2015. Incoming solar radiation turned out to be average for the season under analysis, as compared with longer-term data.
Uscka-Kowalkowska Joanna, Markowicz Krzysztof M., Przybylak Rajmund, Araźny Andrzej   +3 more
doaj   +1 more source

Assessment of the Weimer Geomagnetic Perturbation Model for High‐Latitude Positioning and Navigation

Space Weather, Volume 22, Issue 10, October 2024.
Abstract The Geomagnetism Group at the National Centers for Environmental Information (NCEI), in collaboration with the Cooperative Institute for Research in Environmental Sciences (CIRES), along with various government and industry partners, specializes in developing and providing access to Earth's internal magnetic field models.
S. Califf, M. Nair, D. Weimer, N. Zachman, B. Poedjono   +4 more
wiley   +1 more source

Cluster analysis of the impact of air back-trajectories on aerosol optical properties at Hornsund, Spitsbergen [PDF]

Atmospheric Chemistry and Physics, 2010
In this paper, spectra of aerosol optical thickness from the AERONET (AErosol RObotic NETwork) station at Hornsund in the southern part of Spitsbergen were employed to study the impact of air mass history on aerosol optical thickness for wavelength λ=500
A. Rozwadowska, T. Zieliński, T. Petelski, P. Sobolewski   +3 more
doaj  

Environment‐dependent relationships between corticosterone and energy expenditure during reproduction: Insights from seabirds in the context of climate change

Functional Ecology, Volume 38, Issue 10, Page 2110-2122, October 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Alternative hypotheses have been proposed regarding how the hormone corticosterone (CORT) mediates energy expenditure during reproduction. Elevated baseline CORT (CORTb) could support daily energy expenditure (DEE), promoting reproductive effort or downregulate costly ...
Andrea S. Grunst, Melissa L. Grunst, David Grémillet, Olivier Chastel, Marta Cruz‐Flores, Sophie Gentès, Antoine Grissot, Dariusz Jakubas, Akiko Kato, Charline Parteneau, Katarzyna Wojczulanis‐Jakubas, Jérôme Fort   +11 more
wiley   +1 more source

The Polish Arctic research station in Hornsund

Antarctic Record, 2005
Poland operates a year-round Arctic station at Hornsund, Spitsbergen, Svalbard. It is the only permanent Arctic station which a non-Arctic state operates independently.
Hajime Ito
doaj   +1 more source

Winter Intrusions of Atlantic Water in Kongsfjorden: Oceanic Preconditioning and Atmospheric Triggering

Journal of Geophysical Research: Oceans, Volume 129, Issue 7, July 2024.
Abstract Kongsfjorden, an Arctic fjord in Svalbard, is largely influenced by the West Spitsbergen Current (WSC), transporting warm and salty Atlantic Water (AW) into the Arctic region. Despite the geostrophic control preventing AW from entering the fjord in winter, AW intrusions occasionally occur during energetic local wind events in this season ...
Francesco De Rovere, Davide Zanchettin, Angelo Rubino, Leonardo Langone, Francesco Calogiuri, Paolo Ruggieri, Angelo Lupi, Jacopo Chiggiato   +7 more
wiley   +1 more source

Detection and Energy Dissipation of ULF Waves in the Polar Ionosphere: A Case Study Using the EISCAT Radar

Journal of Geophysical Research: Space Physics, Volume 129, Issue 7, July 2024.
Abstract Ultra‐low frequency (ULF) waves transfer energy and momentum into the ionosphere‐thermosphere system. To quantify this energy, this paper first presents a new method to quantitatively detect ULF waves in Incoherent Scatter Radar (ISR) data based on 2D fast‐Fourier transforms and subsequent reconstruction of the wave.
C. M. van Hazendonk, L. Baddeley, K. M. Laundal, J. L. Chau   +3 more
wiley   +1 more source

Permafrost and Active Layer Temperature and Freeze/Thaw Timing Reflect Climatic Trends at Bayelva, Svalbard

Journal of Geophysical Research: Earth Surface, Volume 129, Issue 7, July 2024.
Abstract Permafrost warming has been observed all around the Arctic, however, variations in temperature trends and their drivers remain poorly understood. We present a comprehensive analysis of climatic changes spanning 25 years (1998–2023) at Bayelva (78.92094°N, 11.83333°E) on Spitzbergen, Svalbard. The quality controlled hourly data set includes air
Inge Grünberg, Brian Groenke, Sebastian Westermann, Julia Boike   +3 more
wiley   +1 more source