Results 21 to 30 of about 12,080 (258)

Monitoring Arctic thin ice: a comparison between CryoSat-2 SAR altimetry data and MODIS thermal-infrared imagery [PDF]

open access: yesThe Cryosphere, 2023
Areas of thin sea ice in the polar regions not only are experiencing the highest rate of sea-ice production but also are, therefore, important hot spots for ocean ventilation as well as heat and moisture exchange between the ocean and the atmosphere ...
F. L. Müller   +4 more
doaj   +1 more source

Eastern Arctic Sea Ice Sensing: First Results from the RADARSAT Constellation Mission Data

open access: yesRemote Sensing, 2022
Sea ice monitoring plays a vital role in secure navigation and offshore activities. Synthetic aperture radar (SAR) has been widely used as an effective tool for sea ice remote sensing (e.g., ice type classification, concentration and thickness retrieval)
Hangyu Lyu   +2 more
doaj   +1 more source

Sea Ice–Water Classification of RADARSAT-2 Imagery Based on Residual Neural Networks (ResNet) with Regional Pooling

open access: yesRemote Sensing, 2022
Sea ice mapping plays an integral role in ship navigation and meteorological modeling in the polar regions. Numerous published studies in sea ice classification using synthetic aperture radar (SAR) have reported high classification rates.
Mingzhe Jiang   +2 more
doaj   +1 more source

Hyperspectral Sea Ice Image Classification Based on the Spectral-Spatial-Joint Feature with Deep Learning

open access: yesRemote Sensing, 2019
Sea ice is one of the causes of marine disasters. The classification of sea ice images is an important part of sea ice detection. The labeled samples in hyperspectral sea ice image classification are difficult to acquire, which causes minor sample ...
Yanling Han   +4 more
doaj   +1 more source

Model-based classification of polarimetric SAR sea ice data [PDF]

open access: yesIEEE International Geoscience and Remote Sensing Symposium, 2003
This paper discusses the role of scattering decomposition models in the classification of polarimetric SAR sea ice data. The iterative Wishart classifier was applied to 3-frequency airborne SAR data acquired in the Beaufort Sea, and the scattering models were found to be helpful in interpreting the assigned classes.
Scheuchl, B., Hajnsek, I., Cumming, I.G.
openaire   +2 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

open access: yesAnnals 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   +7 more
doaj   +1 more source

Multisensor microwave sea-ice classification

open access: yesIEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003
A knowledge of polar sea-ice extent, type, and location is a valuable tool in understanding many geophysical processes. This paper presents an iterative statistical technique for ice classification of multisensor remote sensing imagery. NSCAT, ERS-2, and SSM/I data are used to construct enhanced resolution images.
Q.P. Remund, D.G. Long, M.R. Drinkwater
openaire   +2 more sources

A Novel Data Augmentation Method for Sea Ice Scene Classification of Arctic Aerial Images

open access: yesIEEE Access, 2019
In this paper, a novel data augmentation method was proposed for supervised sea ice scene classification with arctic aerial images. Ice-type classification of sea ice scenes in a region is useful for instant navigation.
Yiming Yan, Chunming Zhang, Nan Su
doaj   +1 more source

Geostatistical and Statistical Classification of Sea-Ice Properties and Provinces from SAR Data

open access: yesRemote Sensing, 2016
Recent drastic reductions in the Arctic sea-ice cover have raised an interest in understanding the role of sea ice in the global system as well as pointed out a need to understand the physical processes that lead to such changes. Satellite remote-sensing
Ute C. Herzfeld   +4 more
doaj   +1 more source

An Improved Sea Ice Classification Algorithm with Gaofen-3 Dual-Polarization SAR Data Based on Deep Convolutional Neural Networks

open access: yesRemote Sensing, 2022
The distribution of sea ice is one of the major safety hazards for sea navigation. As human activities in polar regions become more frequent, monitoring and forecasting of sea ice are of great significance.
Jiande Zhang   +4 more
doaj   +1 more source

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