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Remote Sensing, Volume 15, Issue 2

January-2 2023 - 254 articles

Cover Story: Satellite altimetry has been providing a continuous record of measurements since 1992. However, Sentinel‐6 now provides Synthetic Aperture Radar processing and improves the along‐track resolution from a few kilometres to about 300 metres. This means a major leap towards higher frequencies of the ocean spectrum, which means reconciling conventional and SAR altimetry. To that end, this study uses the Sentinel‐6/Jason‐3 tandem flight to compare simultaneous Internal Solitary Wave measurements between SAR and conventional altimetry. A new and striking feature is found when comparing Sentinel‐6 and Jason‐3, in which backscatter are in anti-phase. These intriguing results are discussed in light of the intrinsically different acquisition geometries of SAR and conventional altimeters as well as possible implications thereof. View this paper
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Articles (254)

  • Article
  • Open Access
5 Citations
3,280 Views
23 Pages

16 January 2023

A uniformity index for the axis ratios (Uar) derived from dual polarization weather radar data is proposed for raindrop area identification and analysis. The derivation of this new parameter is based on radar scattering simulations and assumptions. U...

  • Article
  • Open Access
16 Citations
4,681 Views
20 Pages

Cooperative Navigation Algorithm of Extended Kalman Filter Based on Combined Observation for AUVs

  • Guangrun Sheng,
  • Xixiang Liu,
  • Yehua Sheng,
  • Xiangzhi Cheng and
  • Hao Luo

16 January 2023

The navigation and positioning of multi-autonomous underwater vehicles (AUVs) in the complex and variable marine environment is a significant and much-needed area of attention, especially considering the fact that cooperative navigation technology is...

  • Article
  • Open Access
19 Citations
4,859 Views
40 Pages

16 January 2023

Many regions worldwide suffer from heavy air pollution caused by particulate matter (PM2.5) and nitrogen dioxide (NO2), resulting in a huge annual disease burden and significant welfare costs. Following the outbreak of the COVID-19 global pandemic, e...

  • Article
  • Open Access
13 Citations
3,703 Views
25 Pages

Mapping of Mean Deformation Rates Based on APS-Corrected InSAR Data Using Unsupervised Clustering Algorithms

  • Mohammad Amin Khalili,
  • Behzad Voosoghi,
  • Luigi Guerriero,
  • Saeid Haji-Aghajany,
  • Domenico Calcaterra and
  • Diego Di Martire

16 January 2023

Different interferometric approaches have been developed over the past few decades to process SAR data and recover surface deformation, and each approach has advantages and limitations. Finding an accurate and reliable interval for preparing mean def...

  • Article
  • Open Access
1 Citations
2,271 Views
28 Pages

On the Importance of Non-Gaussianity in Chlorophyll Fluorescence Imaging

  • Angelina El Ghaziri,
  • Nizar Bouhlel,
  • Natalia Sapoukhina and
  • David Rousseau

16 January 2023

We propose a mathematical study of the statistics of chlorophyll fluorescence indices. While most of the literature assumes Gaussian distributions for these indices, we demonstrate their fundamental non-Gaussian nature. Indeed, while the noise in the...

  • Article
  • Open Access
15 Citations
3,624 Views
22 Pages

16 January 2023

Recently, methods based on convolutional neural networks (CNNs) achieve superior performance in polarimetric synthetic aperture radar (PolSAR) image classification. However, the current CNN-based classifiers follow patch-based frameworks, which need...

  • Article
  • Open Access
9 Citations
2,998 Views
24 Pages

16 January 2023

Due to the satellite signals are blocked, it is difficult to obtain the vehicle position in the tunnels. We propose a single-site vehicle localization scheme for the rectangular tunnel environment, where most satellite-based positioning methods can n...

  • Article
  • Open Access
7 Citations
2,755 Views
14 Pages

Effect of ENSO on the Ozone Valley over the Tibetan Plateau Based on the WACCM4 Model

  • Yongchi Li,
  • Feng Xu,
  • Lingfeng Wan,
  • Peng Chen,
  • Dong Guo,
  • Shujie Chang and
  • Chen Yang

16 January 2023

El Niño-Southern Oscillation (ENSO) is the most significant global ocean–atmosphere coupled signal in the tropical Pacific Ocean, and it can affect the stratosphere. However, the ENSO-related dynamical processes that influence the ozone...

  • Article
  • Open Access
5 Citations
3,973 Views
18 Pages

16 January 2023

Since flood inundation hampers human life and the economy, flood inundation retrieval with high temporal resolution and accuracy is essential for the projection of the environmental impact. In this study, a novel cyclone global navigation satellite s...

  • Article
  • Open Access
12 Citations
2,811 Views
23 Pages

16 January 2023

The Three-River Headwaters Region (TRHR) is an important part of the ecological security barrier of the Qinghai–Tibet Plateau in China. Twenty years after the implementation of the TRHR ecological protection and construction project, the restor...

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Remote Sens. - ISSN 2072-4292