Results 1 to 10 of about 56,180 (241)

Greening of Svalbard

open access: yesScience of the Total Environment
Svalbard, located between 76°30'N and 80°50'N, is among the regions in the world with the most rapid temperature increase. We processed a cloud-free time-series of MODIS-NDVI for Svalbard. The dataset is interpolated to daily data during the 2000-2022 period with 232 m pixel resolution.
Laura Stendardi, Marc Macias-Fauria
exaly   +7 more sources

Electron precipitation characteristics during isolated, compound, and multi-night substorm events [PDF]

open access: yesAnnales Geophysicae, 2021
A set of 24 isolated, 46 compound, and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion–recovery phase pairs, compound substorms consist of multiple phase ...
N. Partamies   +8 more
doaj   +1 more source

A statistical study of polar cap flow channels observed in both hemispheres using SuperDARN radars

open access: yesJournal of Space Weather and Space Climate, 2022
This paper details the first large-scale, interhemispheric statistical study into ionospheric fast flow (>900 m/s) channels in the polar cap using the SuperDARN radar network.
Herlingshaw Katie   +4 more
doaj   +1 more source

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+3 more sources

Space and atmospheric physics on Svalbard: a case for continued incoherent scatter radar measurements under the cusp and in the polar cap boundary region

open access: yesProgress in Earth and Planetary Science, 2023
Incoherent scatter radars (ISRs) represent the only instrument (both ground and space based) capable of making high temporal and spatial resolution measurements of multiple atmospheric parameters—such as densities, temperatures, particle velocities, mass
Lisa Baddeley   +9 more
doaj   +1 more source

Reconfiguration and closure of lobe flux by reconnection during northward IMF: possible evidence for signatures in cusp/cleft auroral emissions [PDF]

open access: yesAnnales Geophysicae, 1999
Observations are presented of the response of the dayside cusp/cleft aurora to changes in both the clock and elevation angles of the interplanetary magnetic field (IMF) vector, as monitored by the WIND spacecraft.
M. Lockwood, M. Lockwood, J. Moen
doaj   +1 more source

Impact of planktivorous little auks ( Alle alle) on soil organic matter in Spitsbergen, High Arctic [PDF]

open access: yesPolish Polar Research, 2023
Seabirds constitute an important link between marine and terrestrial ecosystems, one of its manifestations being the transport of organic matter from the sea to breeding grounds.
Wojciech Szymański   +3 more
doaj   +1 more source

Auroral all-sky camera calibration [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2014
A two-step procedure to calibrate the spectral sensitivity to visible light of auroral all-sky cameras is outlined. Center pixel response is obtained by the use of a Lambertian surface and a standard 45 W tungsten lamp.
F. Sigernes   +14 more
doaj   +1 more source

Sustainable tourism: a valid remedy against climate change impact in every context. The Svalbard and Kiribati archipelagos [PDF]

open access: yes, 2020
: Climate change, with relevant global warming, has a deep and global impact on environment but the consequences on local populations and respective economic activity may differ in a significant way depending on the dissimilar socio-economic conditions.
PALMENTIERI, STEFANIA
core   +1 more source

Multi-method geophysical mapping of ground properties and periglacial geomorphology in Hans Glacier forefield, SW Spitsbergen [PDF]

open access: yesPolish Polar Research, 2022
This article presents the results of a geophysical survey from which detailed images of glacial and periglacial landforms and subsurface structures were obtained.
Artur Marciniak   +6 more
doaj   +1 more source

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