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Remote Sensing in Support of Crisis Management: How Space-Based Information Can Support Operations and the Decision-Making Process

A special issue of Remote Sensing (ISSN 2072-4292). This special issue belongs to the section "Earth Observation for Emergency Management".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 2973

Special Issue Editors


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Guest Editor
European Union’s SatCen, Madrid, Spain
Interests: photogrammetry; survey; remote sensing; GIS; post seismic survey
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent emergencies, such as pandemics, wars, and droughts resulting from heat waves, and, more in general, the effects of the climate change, have forced many governments over the years to study, design, and develop recovery and prevention measures. These critical events have mixed and heavy impacts on the environment, population, and economic activities, affecting urban geographical areas but also open countryside, mountain peak, sea, and ocean environments, as well as the arctic regions.

Studying how social, economic, climate, and environmental factors are affected and how they may vary across different geographical areas is crucial, also in the view of implemented and planned counter measures. Decision-makers require tools to understand these crises and their impact and to identify the most suitable way to recover from and prevent them. Remote sensing can provide valuable support, enabling the development of monitoring and forecast models/indices in support of ground measurements and observations.

Remote sensing allows us to detect, measure, and model changes and events that occur on the Earth’s surface and in the atmosphere.

We would like to invite you to contribute papers focusing on the impact of climate change and critical events such as droughts, forest fires, ice melting, floods, Land Surface Temperature (LST), air pollution, and other manmade and natural risks and their consequences affecting stability and economic aspects.

We encourage the submission of papers which test and analyze different geospatial methods and methodologies, including big data analytics, space-time modelling and simulation, environmental modelling, data visualization, hot-spot analysis, and change detection, both with the help of open source and non-open source software.

Dr. Valerio Baiocchi
Dr. Roberta Onori
Dr. Erica Nocerino
Guest Editors

Manuscript Submission Information

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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

  • LST
  • air pollutants
  • environment
  • climate
  • heat islands
  • lockdown periods
  • change detection
  • hot-spot analysis
  • seismic events
  • emergencies

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Published Papers (2 papers)

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Research

18 pages, 5155 KiB  
Article
Impact of Arable Land Abandonment on Crop Production Losses in Ukraine During the Armed Conflict
by Kaixuan Dai, Changxiu Cheng, Siyi Kan, Yaoming Li, Kunran Liu and Xudong Wu
Remote Sens. 2024, 16(22), 4207; https://doi.org/10.3390/rs16224207 - 12 Nov 2024
Cited by 1 | Viewed by 1346
Abstract
The outbreak of Russia-Ukraine conflict casted an impact on the global food market, which was believed to be attributed to that Ukraine has suffered significant production losses due to cropland abandonment. Nevertheless, recent outbreaks of farmer protests against Ukraine’s grain exports demonstrated that [...] Read more.
The outbreak of Russia-Ukraine conflict casted an impact on the global food market, which was believed to be attributed to that Ukraine has suffered significant production losses due to cropland abandonment. Nevertheless, recent outbreaks of farmer protests against Ukraine’s grain exports demonstrated that the production losses might not be as severe as previous estimates. By utilizing the adaptive threshold segmentation method to extract abandoned cropland from the Sentinel-2 high-resolution imagery and calibrating the spatial production allocation model’s gridded crop production data from Ukraine’s statistical data, this study explicitly evaluated Ukraine’s crop-specific production losses and the spatial heterogeneity. The results demonstrated that the estimated area of abandoned cropland in Ukraine ranges from 2.34 to 2.40 million hectares, constituting 7.14% to 7.30% of the total cropland. In Ukrainian-controlled zones, this area spans 1.44 to 1.48 million hectares, whereas in Russian-occupied areas, it varies from 0.90 to 0.92 million hectares. Additionally, the total production losses for wheat, maize, barley, and sunflower amount to 1.92, 1.67, 0.70, and 0.99 million tons, respectively, with corresponding loss ratios of 9.10%, 7.48%, 9.54%, and 8.67%. Furthermore, production losses of wheat, barley, and sunflower emerged in both the eastern and southern states adjacent to the conflict frontlines, while maize losses were concentrated in the western states. The findings imply that Ukraine ought to streamline the food transportation channels and maintain stable agricultural activities in regions with high crop production. Full article
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26 pages, 2707 KiB  
Article
Machine Learning Clustering Techniques to Support Structural Monitoring of the Valgadena Bridge Viaduct (Italy)
by Andrea Masiero, Alberto Guarnieri, Valerio Baiocchi, Domenico Visintini and Francesco Pirotti
Remote Sens. 2024, 16(21), 3971; https://doi.org/10.3390/rs16213971 - 25 Oct 2024
Viewed by 1096
Abstract
The lack of precise and comprehensive information about the health of bridges, and in particular long span ones, can lead to incorrect decisions regarding maintenance, repair, modernization, and reinforcement of the structure itself. While the consequences of inadequate interventions are quite apparent, incorrect [...] Read more.
The lack of precise and comprehensive information about the health of bridges, and in particular long span ones, can lead to incorrect decisions regarding maintenance, repair, modernization, and reinforcement of the structure itself. While the consequences of inadequate interventions are quite apparent, incorrect decisions can also result in unnecessary or misdirected actions. For example, an inadequate assessment of the structural health can lead to the modernization and replacement of some components that are still sound. Structural Health Monitoring (SHM) involves the use of time series derived from periodic measurements of the structure’s behavior, considered in its operational and load environment. The goal is to determine its response to various solicitations and, in particular, to highlight any critical issue in the structure’s behavior that may affect its reliability and safety due to anomalies and deterioration. This paper proposes an SHM method applied to the Valgadena bridge, one of the tallest viaducts in Italy and Europe (maximum height 160 m), located on the Altopiano dei Sette Comuni in the Province of Vicenza. Despite the fact that the viaduct itself had already been monitored during its construction using classical geometric leveling techniques, the methodology proposed here is based instead on the use of affordable dual-frequency GNSS (Global Navigation Satellite System) receivers to determine static and dynamic components of the bridge movements. Specifically, an effective combination of time series analysis methods and machine learning techniques is proposed in order to determine the vibration modes of the monitored viaduct. Monitoring is performed in regular operation conditions of the bridge (operational modal analysis (OMA)), and the use of certain machine learning methods aims at supporting the development of an effective automatic OMA procedure. To be more specific, the random decrements technique is used in order to make the vibration characteristics of the collected signals more apparent. Time-domain-based subspace identification is applied in order to determine a proper model of the collected measurements. Then, clustering methods, namely DBSCAN (Density-Based Spatial Clustering of Applications with Noise) and GMMs (Gaussian Mixture Models), are used in order to reliably estimate the system poles, and hence the corresponding vibration characteristics. The performance of the considered methods is compared on the Valgadena bridge case study, showing that the use of GMM clustering reduces, with respect to DBSCAN, the impact of the choice of certain parameter values in the considered case. Full article
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