Variations of spectral signature profiles of wet and dry targets for supporting the detection of water-leakages using satellite data

Αγαπίου, Άθως; Themistocleous, Kyriacos; Alexakis, Dimitrios D.; Kourtis, Nikolas; Sarris, Apostolos; Perdikou, Skevi; Clayton, C. R. I.; Phinikaridou, Helena; Manoli, Andreas; Hadjimitsis, Diofantos G.

doi:10.1117/12.2029289

Cited by 3 publications

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“…Vegetation crop marks may be formed in areas where vegetation overlay near-surface archaeological remains. As well, the copter was used in applications to monitor water leaks using a spectroradiometer and multispectral cameras [17].…”

Section: Case Studymentioning

confidence: 99%

The use of UAV platforms for remote sensing applications: case studies in Cyprus

Themistocleous

2014

SPIE Proceedings

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The use of cost-effective Unmanned Aerial Vehicles (UAVs) are becoming common tools for researchers for numerous applications. Since UAVs vary in size and payload capacity, various sensors can be installed onto the platform. UAVs can be a efficient and low cost resource for remote sensing applications. Different remote sensing techniques can be used with UAVs, such as field spectroscopy, multi-spectral cameras, infrared cameras and thermal cameras. This paper examines several UAV platforms that were used by the Cyprus University of Technology for remote sensing applications in Cyprus. Using these UAV systems for different applications, the advantages and disadvantages were examined and discussed.

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Section: Case Studymentioning

confidence: 99%

The use of UAV platforms for remote sensing applications: case studies in Cyprus

Themistocleous

2014

SPIE Proceedings

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“…Although spectral variations can be observed in real time as shown by Agapiou et al (2013aAgapiou et al ( , 2013b, the detection of grass over the leakage area can only be observed after a small time period after the event. In these campaigns, the GER 1500 spectroradiometer was used in order to record the spectral signature profile over several types of grasses in Cyprus.…”

Section: Definition Of Spectral Thresholds From Spectroradiometric Camentioning

confidence: 99%

Water leakage detection using remote sensing, field spectroscopy and GIS in semiarid areas of Cyprus

Αγαπίου

Alexakis

Themistocleous

et al. 2014

Urban Water Journal

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Water pipelines need to be systematically monitored in order to minimize losses from possible leakages. In this paper, remote sensing techniques have been exploited in semiarid areas of Cyprus. In addition, ground spectroradiometer has been used to define the leakage's threshold values. The data were analysed in a GIS environment. Two known leakage problems have been examined. In the first case study, a high resolution QuickBird image was used for the detection of the exact point of leakage. In the second case study a multi-temporal analysis was performed using SPOT images. This methodology was able to record 10 possible leakage points along the pipeline. Throughout the 25 km length of the pipeline, the in-situ observations were minimized to only 0.4%. In both studies the Normalised Difference Vegetation Index (NDVI) was applied. The final outcomes highlight the contribution of remote sensing to the early detection of leakages especially in difficult and near inaccessible areas.

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“…The importance of these structures is becoming an increasingly important part of the defence establishments, protecting critical governmental and military functions, thus contributing to victory during war, or at least make it more difficult for the adversary to destroy critical military capabilities (Sepp, 2000). During the 1960s, some of the remote sensing instruments originally developed for military reconnaissance and classified as defence secrets were released for civilian use as more advanced designs became available for military application (Campbell and Wynne, 2011). These instruments extended the reach of aerial observation outside the visible spectrum into the infrared and microwave regions.…”

Section: Introductionmentioning

confidence: 99%

“…These instruments extended the reach of aerial observation outside the visible spectrum into the infrared and microwave regions. It was in this context that the term remote sensing was first used (Campbell and Wynne, 2011). Therefore, Remote Sensing is a rapidly developing scientific field that is applied in various fields of science, including the Military.…”

Section: Introductionmentioning

confidence: 99%

“…Expressed in everyday terms, one might say that we look for differences in the "color" of objects, even though remote sensing is often conducted outside the visible spectrum, where "color", in the usual meaning of the word, does not exist. This principle is the basis of multispectral remote sensing, the science of observing features at varied wavelengths, in an effort to derive information about these features and their distributions (Campbell and Wynne, 2011). The term spectral signature has been used to refer to the spectral response of a feature, as observed over a range of wavelengths (Parker and Wolff, 1965).…”

Section: Introductionmentioning

confidence: 99%

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Monitoring military landscapes and detection of underground man-made critical infrastructures in Cyprus using Earth Observation

et al. 2018

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Abstract. This paper aims to explore the importance of monitoring military landscapes in Cyprus using Earth Observation. The rising availability of remote sensing data provides adequate opportunities for monitoring military landscapes and detecting underground military man-made structures. In order to study possible differences in the spectral signatures of vegetation so as to be used for the systematic monitoring of military landscapes that comprise underground military structures, field spectroscopy has been used. The detection of underground and ground military structures based on remote sensing data could make a significant contribution to defence and security science. In this paper, underground military structures over vegetated areas were monitored, using both ground and satellite remote sensing data. Several ground measurements have been carried out in military areas, throughout the phenological cycle of plant growth, during 2016–2017. The research was carried out using SVC-HR1024 ground spectroradiometers. Field spectroradiometric measurements were collected and analysed in an effort to identify underground military structures using the spectral profile of the vegetated surface overlying the underground target and the surrounding area, comprising the in situ observations. Multispectral vegetation indices were calculated in order to study their variations over the corresponding vegetation areas, in presence or absence of military underground structures. The results show that Vegetation Indices such as NDVI, SR, OSAVI, DVI and MSR are useful for determining areas where military underground structures are present.

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Variations of spectral signature profiles of wet and dry targets for supporting the detection of water-leakages using satellite data

Cited by 3 publications

References 0 publications

The use of UAV platforms for remote sensing applications: case studies in Cyprus

The use of UAV platforms for remote sensing applications: case studies in Cyprus

Water leakage detection using remote sensing, field spectroscopy and GIS in semiarid areas of Cyprus

Monitoring military landscapes and detection of underground man-made critical infrastructures in Cyprus using Earth Observation

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