Results 21 to 30 of about 13,364 (264)

ASTER-Derived High-Resolution Ice Surface Temperature for the Arctic Coast

open access: yesRemote Sensing, 2018
Ice surface temperature (IST) controls the rate of sea ice growth and the heat exchange between the atmosphere and ocean. In this study, high-resolution IST using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) thermal infrared
Young-Sun Son   +2 more
doaj   +1 more source

New insight into the influence of the Greenland high on summer Arctic sea ice

open access: yesEnvironmental Research Letters, 2022
The Greenland high (GL-high) coincides with a local center of action of the summer North Atlantic Oscillation and is known to have significant influence on Greenland ice sheet melting and summer Arctic sea ice. However, the mechanism behind the influence
Shaoyin Wang   +6 more
doaj   +1 more source

Prediction of Arctic Sea Ice Concentration Using a Fully Data Driven Deep Neural Network

open access: yesRemote Sensing, 2017
The Arctic sea ice is an important indicator of the progress of global warming and climate change. Prediction of Arctic sea ice concentration has been investigated by many disciplines and predictions have been made using a variety of methods.
Junhwa Chi, Hyun-choel Kim
doaj   +1 more source

Resolutional Analysis of Multiplicative High-Frequency Speckle Noise Based on SAR Spatial De-Speckling Filter Implementation and Selection

open access: yesRemote Sensing, 2019
Due to the inherent characteristics of the electromagnetic wave scattering phenomenon, synthetic aperture radar (SAR) images are directly degraded by high-frequency multiplicative speckle (HMS) noise, which makes image de-speckling filter application and
Iman Heidarpour Shahrezaei   +1 more
doaj   +1 more source

The early twentieth century warming and winter Arctic sea ice [PDF]

open access: yesThe Cryosphere, 2012
The Arctic has featured the strongest surface warming over the globe during the recent decades, and the temperature increase has been accompanied by a rapid decline in sea ice extent.
V. A. Semenov, M. Latif
doaj   +1 more source

A Feasibility Study of Sea Ice Motion and Deformation Measurements Using Multi-Sensor High-Resolution Optical Satellite Images

open access: yesRemote Sensing, 2017
Sea ice motion and deformation have generally been measured using low-resolution passive microwave or mid-resolution radar remote sensing datasets of daily (or few days) intervals to monitor long-term trends over a wide polar area. This feasibility study
Chang-Uk Hyun, Hyun-cheol Kim
doaj   +1 more source

Classification of sea ice types in Sentinel-1 synthetic aperture radar images [PDF]

open access: yesThe Cryosphere, 2020
A new Sentinel-1 image-based sea ice classification algorithm using a machine-learning-based model trained in a semi-automated manner is proposed to support daily ice charting.
J.-W. Park   +7 more
doaj   +1 more source

Optimization of the k-nearest-neighbors model for summer Arctic Sea ice prediction

open access: yesFrontiers in Marine Science, 2023
The Arctic sea ice plays a significant role in climate-related processes and has a considerable effect on humans, however accurately predicting the Arctic sea ice concentration is still challenging.
Yongcheng Lin   +9 more
doaj   +1 more source

Unraveling the Arctic Sea Ice Change since the Middle of the Twentieth Century

open access: yesGeosciences, 2023
Changes in Arctic sea ice since the middle of the last century are explored in this study. Both observations and climate model simulations show an overall sea ice expansion during 1953–1970 but a general sea ice decline afterward. Anthropogenic aerosols,
Nathan Kong, Wei Liu
doaj   +1 more source

Bacteria and viruses in Arctic Sea ice

open access: yesOceanology, 2018
We studied vertical distribution of bacteria and viruses in different layers of the Arctic sea ice drilled at the North Pole. The sampled multi-year ice was characterized by uneven vertical distribution of bacterial abundance. This characteristic varied within the range of 8±1.2 ×103 to 95±2.6 ×103 cells ml-1. The average bacterial abundance was 28±2.9×
Sazhin, Andrey   +3 more
openaire   +2 more sources

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