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Machine Learning Methods for Polar Regions

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Remote Sensing Image Processing".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 7408

Special Issue Editors


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Guest Editor
Researcher at the German Aerospace Center (DLR), Remote Sensing Technology Institute, 82234 Wessling, Germany
Interests: data mining; machine learning; knowledge discovery using remote sensing data; ontologies and semantic representations; benchmarks for earth observation data

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Guest Editor
Associate Professor of Applied Remote Sensing—Earth Observation Group, Department of Physics and Technology, UiT the Arctic University of Norway, 9019 Tromsø, Norway
Interests: efficient information extraction from multimodal remote sensing; nonlinear signal processing applied to large-scale heterogeneous records; earth observation interpretation and big data mining; analysis and management for human–environment interaction assessment
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Guest Editor
Researcher at the Danish Meteorological Institute, Remote Sensing R&D group, 2100 Copenhagen, Denmark
Interests: Earth observation; remote sensing; machine learning; deep learning; computer vision; geophysical image processing; statistical modeling; synthetic aperture radar; data science

Special Issue Information

Dear Colleagues,

Polar regions are remote and hostile environments where efforts to collect in situ observations and data are limited by very real constraints, such as the weather, lack of infrastructure, and long periods of polar darkness during winter. Consequently, satellite platforms provide the only source of consistent, repeatable, regional-scale, year-round data of the polar regions, but parameters extracted from them still lack the necessary veracity.

This Special Issue aims to put together contributions from the ExtremeEarth and AI4Arctic projects, but also other similar projects.

We cordially invite researchers who have an interest in this topic to submit their original papers. Potential topics for this Special Issue are related (but not limited only) to the following topics:

  • Artificial intelligence/machine learning/deep learning techniques
  • Copernicus and third-party data
  • Big data
  • Fusion data
  • Earth Observation training data
  • Sea-ice charts
  • Linked geospatial data
  • Spatiotemporal evolution patterns
  • Semantic multisensor satellite image time series analysis
  • Knowledge and extreme earth analytics

Dr. Corneliu Octavian Dumitru
Dr. Andrea Marinoni
Mr. Tore Wulf
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Machine learning
  • Semantics/ontologies
  • Benchmark data
  • Linked data
  • Sea-ice charts

Published Papers (1 paper)

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Research

20 pages, 6461 KiB  
Article
Sea Ice Classification of SAR Imagery Based on Convolution Neural Networks
by Salman Khaleghian, Habib Ullah, Thomas Kræmer, Nick Hughes, Torbjørn Eltoft and Andrea Marinoni
Remote Sens. 2021, 13(9), 1734; https://0-doi-org.brum.beds.ac.uk/10.3390/rs13091734 - 29 Apr 2021
Cited by 39 | Viewed by 6673
Abstract
We explore new and existing convolutional neural network (CNN) architectures for sea ice classification using Sentinel-1 (S1) synthetic aperture radar (SAR) data by investigating two key challenges: binary sea ice versus open-water classification, and a multi-class sea ice type classification. The analysis of [...] Read more.
We explore new and existing convolutional neural network (CNN) architectures for sea ice classification using Sentinel-1 (S1) synthetic aperture radar (SAR) data by investigating two key challenges: binary sea ice versus open-water classification, and a multi-class sea ice type classification. The analysis of sea ice in SAR images is challenging because of the thermal noise effects and ambiguities in the radar backscatter for certain conditions that include the reflection of complex information from sea ice surfaces. We use manually annotated SAR images containing various sea ice types to construct a dataset for our Deep Learning (DL) analysis. To avoid contamination between classes we use a combination of near-simultaneous SAR images from S1 and fine resolution cloud-free optical data from Sentinel-2 (S2). For the classification, we use data augmentation to adjust for the imbalance of sea ice type classes in the training data. The SAR images are divided into small patches which are processed one at a time. We demonstrate that the combination of data augmentation and training of a proposed modified Visual Geometric Group 16-layer (VGG-16) network, trained from scratch, significantly improves the classification performance, compared to the original VGG-16 model and an ad hoc CNN model. The experimental results show both qualitatively and quantitatively that our models produce accurate classification results. Full article
(This article belongs to the Special Issue Machine Learning Methods for Polar Regions)
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