Results 11 to 20 of about 2,871 (124)

Formation, Growth, and Decay of Sea-Ice in the Canadian Arctic Archipelago

ARCTIC, 1961
Equations relating the accretion and decay of sea ice to standard meteorological data are derived empirically from observations at Alert, Eureka, Isachsen, Mould Bay, and Resolute, 1947-1957. The differential equations permit calculation of ice growth by increments, and contain a separate term allowing for variations in snow-cover depths.
openaire   +4 more sources

Consistent ice and open water classification combining historical synthetic aperture radar satellite images from ERS-1/2, Envisat ASAR, RADARSAT-2 and Sentinel-1A/B

Annals of Glaciology, 2020
Synthetic Aperture Radar (SAR) satellite images are used to monitor Arctic sea ice, with systematic data records dating back to 1991. We propose a semi-supervised classification method that separates open water from sea ice and can utilise ERS-1/2 ...
A. Malin Johansson, Eirik Malnes, Sebastian Gerland, Anca Cristea, Anthony P. Doulgeris, Dmitry V. Divine, Olga Pavlova, Tom Rune Lauknes   +7 more
doaj   +1 more source

Early predictors of seasonal Arctic sea-ice volume loss: the impact of spring and early-summer cloud radiative conditions

Annals of Glaciology, 2020
Clouds play an important role in the Arctic surface radiative budget, impacting the seasonal evolution of Arctic sea-ice cover. We explore the large-scale impacts of springtime and early summer (March through July) cloud and radiative fluxes on sea ice ...
Michalea D. King, Dana E. Veron, Helga S. Huntley   +2 more
doaj   +1 more source

Changing ice and changing light: trends in solar heat input to the upper Arctic ocean from 1988 to 2014

Annals of Glaciology, 2020
The Arctic sea-ice cover has undergone a significant decline in recent decades. The melt season is starting earlier, ice is thinner and seasonal ice dominates. Here we examine the effects of these changes on the solar heat input to the upper ocean in ice-
Donald Perovich, Bonnie Light, Suzanne Dickinson   +2 more
doaj   +1 more source

Thin ice, deep snow and surface flooding in Kotzebue Sound: landfast ice mass balance during two anomalously warm winters and implications for marine mammals and subsistence hunting

Journal of Glaciology, 2021
The inaugural data from the first systematic program of sea-ice observations in Kotzebue Sound, Alaska, in 2018 coincided with the first winter in living memory when the Sound was not choked with ice.
Andrew R. Mahoney, Kate E. Turner, Donna D. W. Hauser, Nathan J. M. Laxague, Jessica M. Lindsay, Alex V. Whiting, Carson R. Witte, John Goodwin, Cyrus Harris, Robert J. Schaeffer, Roswell Schaeffer, Sarah Betcher, Ajit Subramaniam, Christopher J. Zappa   +13 more
doaj   +1 more source

Impacts of synoptic-scale cyclones on Arctic sea-ice concentration: a systematic analysis

Annals of Glaciology, 2020
The role of synoptic-scale cyclones in the trends and variability of Arctic sea ice conditions has remained uncertain. In recognition, we conduct a systematic investigation of how sea-ice concentration (SIC) changes with cyclone passage, including all ...
Erika A. P. Schreiber, Mark C. Serreze
doaj   +1 more source

Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods

Journal of Glaciology, 2023
A precise knowledge of landfast sea-ice (fast-ice) thickness is relevant to many different disciplines. Sea Ice Monitoring Stations (SIMS) are used to measure time series of fast-ice thickness at a location.
Maren E. Richter, Greg H. Leonard, Inga J. Smith, Pat J. Langhorne, Andrew R. Mahoney, Matthew Parry   +5 more
doaj   +1 more source

Sea-ice thickness in the coastal northeastern Chukchi Sea from moored ice-profiling sonar

Journal of Glaciology, 2017
Time series ice-draft data were obtained from moored ice-profiling sonar (IPS), in the coastal northeastern Chukchi Sea during 2009/10. Time series data show seasonal growth of sea-ice draft, occasionally interrupted by coastal polynya. The sea-ice draft
YASUSHI FUKAMACHI, DAISUKE SIMIZU, KAY I. OHSHIMA, HAJO EICKEN, ANDREW R. MAHONEY, KATSUSHI IWAMOTO, ERIKA MORIYA, SOHEY NIHASHI   +7 more
doaj   +1 more source

Effect of frequent winter warming events (storms) and snow on sea-ice growth – a case from the Atlantic sector of the Arctic Ocean during the N-ICE2015 campaign

Annals of Glaciology, 2020
We examine the relative effect of warming events (storms) and snow cover on thermodynamic growth of Arctic sea ice in winter. We use a 1-D snow and ice thermodynamic model to perform sensitivity experiments.
Ioanna Merkouriadi, Bin Cheng, Stephen R. Hudson, Mats A. Granskog   +3 more
doaj   +1 more source

Sedimentary architecture and landforms of the late Saalian (MIS 6) ice sheet margin offshore of the Netherlands [PDF]

Earth Surface Dynamics, 2021
Reconstructing the growth and decay of palaeo-ice sheets is critical to understanding the relationships between global climate and sea-level change and to testing numerical ice sheet models.
V. Cartelle, N. L. M. Barlow, D. M. Hodgson, F. S. Busschers, K. M. Cohen, B. M. L. Meijninger, W. P. van Kesteren   +6 more
doaj   +1 more source