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Related papers: Modeling the Chlorophyll-a from Sea Surface Reflec…

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Chlorophyll-a (Chl) retrieval from ocean colour remote sensing is problematic for relatively turbid coastal waters due to the impact of non-algal materials on atmospheric correction and standard Chl algorithm performance. Artificial neural…

Atmospheric and Oceanic Physics · Physics 2022-05-18 Madjid Hadjal , Encarni Medina-López , Jinchang Ren , Alejandro Gallego , David McKee

Water is a key component of life, the natural environment and human health. For monitoring the conditions of a water body, the chlorophyll a concentration can serve as a proxy for nutrients and oxygen supply. In situ measurements of water…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Philipp M. Maier , Sina Keller

We present the Global Water Classifier (GWC), a supervised, geospatially extensive Machine Learning (ML) classifier trained on Sen2Cor corrected Sentinel-2 surface reflectance data. Using nearly 100 globally distributed inland water bodies,…

Geophysics · Physics 2026-05-05 Yotam Sherf , Bar Efrati , Gabriel Rozman , Moshe Harel

Water quality is of great importance for humans and for the environment and has to be monitored continuously. It is determinable through proxies such as the chlorophyll a concentration, which can be monitored by remote sensing techniques.…

Image and Video Processing · Electrical Eng. & Systems 2019-08-22 Philipp M. Maier , Sina Keller

Marine chlorophyll which is present within phytoplankton are the basis of photosynthesis and they have a high significance in sustaining ecological balance as they highly contribute toward global primary productivity and comes under the…

Quantitative Methods · Quantitative Biology 2023-04-26 Subhrangshu Adhikary , Sudhir Kumar Chaturvedi , Saikat Banerjee , Sourav Basu

The Mar Menor, Europe's largest hypersaline coastal lagoon, located in southeastern Spain, has undergone severe eutrophication crises, with devastating impacts on biodiversity and water quality. Monitoring chlorophyll-a, a proxy for…

Image and Video Processing · Electrical Eng. & Systems 2026-02-26 Antonio Martínez-Ibarra , Aurora González-Vidal , Adrián Cánovas-Rodríguez , Antonio F. Skarmeta

Under the impact of global climate changes and human activities, harmful algae blooms in surface waters have become a growing concern due to negative impacts on water related industries. Therefore, reliable and cost effective methods of…

Computer Vision and Pattern Recognition · Computer Science 2018-10-26 Jason L. Deglint , Chao Jin , Alexander Wong

Marine chlorophyll concentration is an important indicator of ecosystem health and carbon cycle strength, and its accurate prediction is crucial for red tide warning and ecological response. In this paper, we propose a LSTM-RF hybrid model…

Effective spatio-temporal measurements of water surface elevation (water waves) in laboratory experiments are crucial for scientific and engineering research. Existing techniques are often cumbersome, computationally heavy and generally…

Atmospheric and Oceanic Physics · Physics 2024-10-22 Noam Ginio , Michael Lindenbaum , Barak Fishbain , Dan Liberzon

Coral reefs support numerous marine organisms and are an important source of coastal protection from storms and floods, representing a major part of marine ecosystems. However coral reefs face increasing threats from pollution, ocean…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Julio Jerison E. Macrohon , Gordon Hung

Effective water quality monitoring in coastal regions is crucial due to the progressive deterioration caused by pollution and human activities. To address this, this study develops time-series models to predict chlorophyll-a (Chl-a),…

Machine Learning · Computer Science 2024-08-28 Rohin Sood , Kevin Zhu

Almost all remote sensing atmospheric PM2.5 estimation methods need satellite aerosol optical depth (AOD) products, which are often retrieved from top-of-atmosphere (TOA) reflectance via an atmospheric radiative transfer model. Then, is it…

Atmospheric and Oceanic Physics · Physics 2019-02-28 Huanfeng Shen , Tongwen Li , Qiangqiang Yuan , Liangpei Zhang

Remote sensing of the Earth's surface water is critical in a wide range of environmental studies, from evaluating the societal impacts of seasonal droughts and floods to the large-scale implications of climate change. Consequently, a large…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Joachim Moortgat , Ziwei Li , Michael Durand , Ian Howat , Bidhyananda Yadav , Chunli Dai

In chemical processing and bioprocessing, conventional online sensors are limited to measure only basic process variables like pressure and temperature, pH, dissolved O and CO$_2$ and viable cell density (VCD). The concentration of other…

Quantitative Methods · Quantitative Biology 2020-05-07 Semion Rozov

In this paper we investigate neural networks for classification in hyperspectral imaging with a focus on connecting the architecture of the network with the physics of the sensing and materials present. Spectroscopy is the process of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Bill Basener

In this paper, we present a regression framework involving several machine learning models to estimate water parameters based on hyperspectral data. Measurements from a multi-sensor field campaign, conducted on the River Elbe, Germany,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Philipp M. Maier , Sina Keller

Managing the quality of water for present and future generations of coastal regions should be a central concern of both citizens and public officials. Remote sensing can contribute to the management and monitoring of coastal water and…

Atmospheric and Oceanic Physics · Physics 2020-03-27 Maryam R. Al Shehhi , Abdullah Kaya

In this work model-based methods are employed along with machine learning techniques to classify sediments in oceanic environments based on the geoacoustic properties of a two-layer seabed. Two different scenarios are investigated. First, a…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Christina Frederick , Soledad Villar , Zoi-Heleni Michalopoulou

Remote sensing techniques have been increasingly utilised in aquatic applications in recent years. A common challenge in using optical satellite data is the presence of missing observations due to cloud cover. These data gaps can lead to…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Shuang Liua , Fiona Johnson , Rohitash Chandra

New data was obtained for a frequency band that had not been so well-studied for sea surface probing applications before. During the described 2-weeks sea experiment 1-3 kHz tonal pulses were emitted from a platform, located on the northern…

Atmospheric and Oceanic Physics · Physics 2022-05-31 Alexey V. Ermoshkin , Dmitry A. Kosteev , Alexander A. Ponomarenko , Dmitry D. Razumov , Mikhail B. Salin
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