Results 31 to 40 of about 1,182 (150)

Topography-albedo feedback reinforces the transition to a younger Arctic ice pack

open access: yesCommunications Earth & Environment
Over the past few decades, the Arctic sea ice cover has rapidly shifted from consisting largely of thicker multiyear ice to predominantly thinner first-year ice. While ice-albedo feedback and reductions in overall ice extent have received a great deal of
David E. Gluckman   +2 more
doaj   +1 more source

Spatial and Temporal Variations in the Extent and Thickness of Arctic Landfast Ice

open access: yesRemote Sensing, 2019
Analyses of landfast ice in Arctic coastal areas provide a comprehensive understanding of the variations in Arctic sea ice and generate data for studies on the utilization of the Arctic passages.
Zixuan Li   +7 more
doaj   +1 more source

Vertical profiling of aerosol particles and trace gases over the central Arctic Ocean during summer [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Unique measurements of vertical size-resolved aerosol particle concentrations, trace gas concentrations and meteorological data were obtained during the Arctic Summer Cloud Ocean Study (ASCOS, www.ascos.se), an International Polar Year project aimed at ...
P. Kupiszewski   +10 more
doaj   +1 more source

The number and distribution of polar bears in the western Barents Sea

open access: yesPolar Research, 2017
Polar bears have experienced a rapid loss of sea-ice habitat in the Barents Sea. Monitoring this subpopulation focuses on the effects on polar bear demography.
Jon Aars   +7 more
doaj   +1 more source

Sea-Ice Morphology Change in the Canada Basin Summer: 2006–2015 Ship Observations Compared to Observations From the 1960s to the Early 1990s

open access: yesFrontiers in Earth Science, 2018
An ice watch, encompassing visual observation of sea ice conducted from the ship's bridge, is typically performed on sea-ice oriented research cruises.
Jennifer K. Hutchings, M. Kate Faber
doaj   +1 more source

Winter sea ice export from the Laptev Sea preconditions the local summer sea ice cover and fast ice decay [PDF]

open access: yesThe Cryosphere, 2017
Ice retreat in the eastern Eurasian Arctic is a consequence of atmospheric and oceanic processes and regional feedback mechanisms acting on the ice cover, both in winter and summer.
P. Itkin, P. Itkin, T. Krumpen
doaj   +1 more source

Transition in the fractal geometry of Arctic melt ponds [PDF]

open access: yesThe Cryosphere, 2012
During the Arctic melt season, the sea ice surface undergoes a remarkable transformation from vast expanses of snow covered ice to complex mosaics of ice and melt ponds.
C. Hohenegger   +4 more
doaj   +1 more source

Regime-dependence when constraining a sea ice model with observations: lessons from a single-column perspective [PDF]

open access: yesThe Cryosphere
A substantial body of work has explored the use of sea ice concentration (SIC) and sea ice thickness (SIT) observations to initialize modeled estimates of the unobserved Arctic sea ice state via data assimilation (DA).
M. M. Wieringa   +2 more
doaj   +1 more source

The summer aerosol in the central Arctic 1991–2008: did it change or not? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
In the course of global warming dramatic changes are taking place in the Arctic and boreal environments. However, physical aerosol data in from the central summer Arctic taken over the course of 18 yr from 1991 to 2008 do not show systematic year-to-year
J. Heintzenberg, C. Leck
doaj   +1 more source

Spatial Distribution of Methanesulphonic Acid in the Arctic Aerosol Collected during the Chinese Arctic Research Expedition

open access: yesAtmosphere, 2015
Methanesulphonic acid (MSA, mainly derived from marine biogenic emissions) has been frequently used to estimate the marine biogenic contribution. However, there are few reports on MSA over the Arctic Ocean, especially the central Arctic Ocean.
Peipei Ye   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy