Results 11 to 20 of about 453,303 (276)

The EUMETSAT sea ice concentration climate data record [PDF]

open access: yesThe Cryosphere, 2016
An Arctic and Antarctic sea ice area and extent dataset has been generated by EUMETSAT's Ocean and Sea Ice Satellite Application Facility (OSISAF) using the record of microwave radiometer data from NASA's Nimbus 7 Scanning Multichannel Microwave ...
R. T. Tonboe   +8 more
doaj   +6 more sources

Sea ice concentration inversion based on different Arctic sea ice types

open access: yesFrontiers in Marine Science
The ASI algorithm uses the same sea ice and seawater tie-points when inverting polar sea ice concentration (SIC), but this approach does not fully consider the differences between different polar sea regions and the impact of different sea ice ...
Xingdong Wang   +4 more
doaj   +3 more sources

Satellite passive microwave sea-ice concentration data set inter-comparison for Arctic summer conditions [PDF]

open access: gold, 2020
. We report on results of a systematic inter-comparison of 10 global sea-ice concentration (SIC) data products at 12.5 to 50.0 km grid resolution from satellite passive microwave (PMW) observations for the Arctic during summer.
Stefan Kern   +4 more
openalex   +2 more sources

New methodology to estimate Arctic sea ice concentration from SMOS combining brightness temperature differences in a maximum-likelihood estimator [PDF]

open access: yesThe Cryosphere, 2017
Monitoring sea ice concentration is required for operational and climate studies in the Arctic Sea. Technologies used so far for estimating sea ice concentration have some limitations, for instance the impact of the atmosphere, the physical ...
C. Gabarro   +5 more
doaj   +2 more sources

Improving Arctic sea ice edge forecasts by assimilating high horizontal resolution sea ice concentration data into the US Navy's ice forecast systems [PDF]

open access: yesThe Cryosphere, 2015
This study presents the improvement in ice edge error within the US Navy's operational sea ice forecast systems gained by assimilating high horizontal resolution satellite-derived ice concentration products.
P. G. Posey   +10 more
doaj   +2 more sources

Consistent biases in Antarctic sea ice concentration simulated by climate models [PDF]

open access: yesThe Cryosphere, 2018
The simulation of Antarctic sea ice in global climate models often does not agree with observations. In this study, we examine the compactness of sea ice, as well as the regional distribution of sea ice concentration, in climate models from the latest
L. A. Roach   +3 more
doaj   +2 more sources

Brief communication: The challenge and benefit of using sea ice concentration satellite data products with uncertainty estimates in summer sea ice data assimilation [PDF]

open access: yesThe Cryosphere, 2016
Data assimilation experiments that aim at improving summer ice concentration and thickness forecasts in the Arctic are carried out. The data assimilation system used is based on the MIT general circulation model (MITgcm) and a local singular evolutive ...
Q. Yang   +5 more
doaj   +2 more sources

A new tracking algorithm for sea ice age distribution estimation [PDF]

open access: yesThe Cryosphere, 2018
A new algorithm for estimating sea ice age (SIA) distribution based on the Eulerian advection scheme is presented. The advection scheme accounts for the observed divergence or convergence and freezing or melting of sea ice and predicts consequent ...
A. A. Korosov   +8 more
doaj   +7 more sources

Impurity Concentrations In Sea Ice [PDF]

open access: bronzeJournal of Glaciology, 1977
AbstractThree different types of saline ice were cut into sections a few millimeters thick along planes parallel to the surface. The resulting melts were analyzed quantitatively for chloride, sulphate, sodium, potassium, magnesium, and calcium. Two of the specimens were artificial sea ice, grown in the laboratory at ambient temperatures of —30°C and ...
J. R. Addison
openalex   +3 more sources

Optimising assimilation of sea ice concentration in an Earth system model with a multicategory sea ice model [PDF]

open access: yesTellus A: Dynamic Meteorology and Oceanography, 2018
A data assimilation method capable of constraining the sea ice of an Earth system model in a dynamically consistent manner has the potential to enhance the accuracy of climate reconstructions and predictions.
M. Kimmritz   +5 more
semanticscholar   +5 more sources

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