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The reconstruction of ocean subsurface temperature (OST) using satellite remote sensing data holds significant scientific value for advancing the understanding of ocean dynamics and climate variability. However, the scarcity of subsurface…

Atmospheric and Oceanic Physics · Physics 2026-05-05 Ming Shan Loo , Wengen Li , Xudong Jiang , Hailiang Cheng , Zhifei Zhang , Jihong Guan , Yichao Zhang

Due to the irregular space-time sampling of sea surface observations, the reconstruction of sea surface dynamics is a challenging inverse problem. While satellite altimetry provides a direct observation of the sea surface height (SSH),…

Image and Video Processing · Electrical Eng. & Systems 2023-07-19 Ronan Fablet , Quentin Febvre , Bertrand Chapron

The latest version of the European Space Agency's Sea State Climate Change Initiative database adopts a dedicated algorithm (retracker) to reprocess two decades of satellite altimetry measurements and provide long time series of significant…

Atmospheric and Oceanic Physics · Physics 2025-05-20 Marcello Passaro , Guillaume Dodet , Fabrice Ardhuin , Paolo Cipollini

Satellite altimetry is a unique way for direct observations of sea surface dynamics. This is however limited to the surface-constrained geostrophic component of sea surface velocities. Ageostrophic dynamics are however expected to be…

Atmospheric and Oceanic Physics · Physics 2023-01-09 Ronan Fablet , Bertrand Chapron , Julien Le Sommer , Florian Sévellec

This paper presents the assessment of altimetric data from Sentinel-3A satellite operating in Synthetic Aperture Radar (SAR) mode for sea level research studies and applications over the largest archipelagos at Southeast Asia. Both…

Atmospheric and Oceanic Physics · Physics 2023-07-11 N. H. Idris , S. Vignudelli , X. Deng

Space-time adaptive processing (STAP) is an effective tool for detecting a moving target in spaceborne or airborne radar systems. Statistical-based STAP methods generally need sufficient statistically independent and identically distributed…

Information Theory · Computer Science 2010-08-26 Ke Sun , Hao Zhang , Gang Li , Huadong Meng , Xiqin Wang

The application of Synthetic Aperture Radar (SAR) techniques to classical radar altimetry offers the potential for greatly improved Earth surface mapping. This paper provides an overview of the progress of SAMOSA, Development of SAR…

Atmospheric and Oceanic Physics · Physics 2008-02-07 C. Martin-Puig , J. Marquez , G. Ruffini , R. K. Raney , J. Benveniste

Satellite altimetry, which measures water level with global coverage and high resolution, provides an unprecedented opportunity for a wide and refined understanding of the changing tides in the coastal area, but the sampling frequency is…

Applications · Statistics 2023-05-31 Ruo-Qian Wang , Behzad Golparvar , Morgan Mark

Sea surface temperature (SST) is a fundamental physical parameter characterising the thermal state of sea surface. Due to the intricate thermal interactions between land, sea, and atmosphere, the spatial gradients of SST in coastal waters…

Atmospheric and Oceanic Physics · Physics 2025-05-14 Yiqing Guo , Nagur Cherukuru , Eric Lehmann , Xiubin Qi , Mark Doubelld , S. L. Kesav Unnithan , Ming Feng

Thermal infrared (TIR) target tracking methods often adopt the correlation filter (CF) framework due to its computational efficiency. However, the low resolution of TIR images, along with tracking interference, significantly limits the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Shang Zhang , Xiaobo Ding , Huanbin Zhang , Ruoyan Xiong , Yue Zhang

The performance of over-the-air computation (AirComp) systems degrades due to the hostile channel conditions of wireless devices (WDs), which can be significantly improved by the employment of reconfigurable intelligent surfaces (RISs).…

Signal Processing · Electrical Eng. & Systems 2023-01-06 Xiongfei Zhai , Guojun Han , Yunlong Cai , Yuanwei Liu , Lajos Hanzo

Real-time estimation of ocean wave heights using high-frequency (HF) radar has attracted great attention. This method offers the benefit of easy maintenance by virtue of its ground-based installation. However, it is adversely affected by…

Numerical Analysis · Mathematics 2025-05-20 Kaede Watanabe , Toshiaki Yachimura , Tsubasa Terada , Hiroshi Kameda , Ryuhei Takahashi , Hiroshi Suito

A simultaneously transmitting and reflecting surface (STARS) aided terahertz (THz) communication system is proposed. A novel power consumption model is proposed that depends on the type and resolution of the STARS elements. The spectral…

Information Theory · Computer Science 2023-06-19 Zhaolin Wang , Xidong Mu , Jiaqi Xu , Yuanwei Liu

The sea level observations from satellite altimetry are characterised by a sparse spatial and temporal coverage. For this reason, along-track data are routinely interpolated into daily grids. The latter are strongly smoothed in time and…

Atmospheric and Oceanic Physics · Physics 2023-03-22 Marcello Passaro , Marie-Christin Juhl

The sea surface temperature (SST), a key environmental parameter, is crucial to optimizing production planning, making its accurate prediction a vital research topic. However, the inherent nonlinearity of the marine dynamic system presents…

Machine Learning · Computer Science 2025-04-25 Yin Wang , Chunlin Gong , Xiang Wu , Hanleran Zhang

Sea surface temperature (SST) is an essential climate variable that can be measured via ground truth, remote sensing, or hybrid model methodologies. Here, we celebrate SST surveillance progress via the application of a few relevant…

Atmospheric and Oceanic Physics · Physics 2023-06-19 Albert Larson , Ali Shafqat Akanda

This paper presents a method for estimating significant wave height (Hs) from sparse S_pectral P_oint using a T_ransformer-based approach (SPT). Based on empirical observations that only a minority of spectral points with strong power…

Signal Processing · Electrical Eng. & Systems 2026-01-09 Yi Zhou , Li Wang , Hang Su , Tian Wang

For high spatial resolution (HSR) remote sensing images, bitemporal supervised learning always dominates change detection using many pairwise labeled bitemporal images. However, it is very expensive and time-consuming to pairwise label…

Computer Vision and Pattern Recognition · Computer Science 2023-10-17 Zhuo Zheng , Ailong Ma , Liangpei Zhang , Yanfei Zhong

Gravitational-wave signals from binary neutron star coalescences carry information about the star's equation of state in their tidal signatures. A major issue in the inference of the tidal parameters (or directly of the equation of state)…

General Relativity and Quantum Cosmology · Physics 2021-06-16 Rossella Gamba , Matteo Breschi , Sebastiano Bernuzzi , Michalis Agathos , Alessandro Nagar

In situ and remotely sensed observations have potential to facilitate data-driven predictive models for oceanography. A suite of machine learning models, including regression, decision tree and deep learning approaches were developed to…

Atmospheric and Oceanic Physics · Physics 2020-06-24 Stefan Wolff , Fearghal O'Donncha , Bei Chen
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