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Time-Frequency Feature Extraction and Analysis of Inland Waterway Buoy Motion Based on Massive Monitoring Data [PDF]

Sensors
Sensors are widely used in inland waterway buoys to monitor their position, but the collected data are often affected by noise, outliers, and irregular sampling intervals. To address these challenges, a standardized data processing framework is proposed.
Xin Li, Yimei Chen, Lilei Mao, Nini Zhang   +3 more
doaj   +2 more sources

Diurnal Variation of the Diffuse Attenuation Coefficient for Downwelling Irradiance at 490 nm in Coastal East China Sea

Remote Sensing, 2021
The diurnal variation of the diffuse attenuation coefficient for downwelling irradiance at 490 nm (Kd(490)) has complex characteristics in the coastal regions.
Yu Zhang, Zhantang Xu, Yuezhong Yang, Guifen Wang, Wen Zhou, Wenxi Cao, Yang Li, Wendi Zheng, Lin Deng, Kai Zeng, Yinxue Zhang   +10 more
doaj   +1 more source

Evaluation of CFOSAT Scatterometer Wind Data in Global Oceans

Remote Sensing, 2021
The China-France Oceanography SATellite (CFOSAT), launched on 29 October 2018, is a joint mission developed by China and France. To evaluate the CFOSAT wind product, L2B swath data with a spatial resolution of 25 × 25 km were compared with in situ ...
Haijun Ye, Junmin Li, Bo Li, Junliang Liu, Danling Tang, Wuyang Chen, Hongqiang Yang, Fenghua Zhou, Rongwang Zhang, Sufen Wang, Shilin Tang   +10 more
doaj   +1 more source

Design, Implementation, and Measurement Procedure of Underwater and Water Surface Antenna for LoRa Communication

Sensors, 2021
There is an increasing interest in water bodies, which make up more that seventy percent of our planet. It is thus imperative that the water environment should be remotely monitored.
Aliyu Dala, Tughrul Arslan
doaj   +1 more source

Ship Path Planning Based on Buoy Offset Historical Trajectory Data

Journal of Marine Science and Engineering, 2022
In the existing research on the intelligent navigation of ships, navigation route planning often regards light buoys as fixed obstructions. However, due to factors such as water ripples, the position of the buoys keeps periodically changing. If the buoys
Shibo Zhou, Zhizheng Wu, Lüzhen Ren
doaj   +1 more source

Snow Depth and Air Temperature Seasonality on Sea Ice Derived From Snow Buoy Measurements

Frontiers in Marine Science, 2021
Snow depth on sea ice is an essential state variable of the polar climate system and yet one of the least known and most difficult to characterize parameters of the Arctic and Antarctic sea ice systems.
Marcel Nicolaus, Mario Hoppmann, Stefanie Arndt, Stefan Hendricks, Christian Katlein, Anja Nicolaus, Leonard Rossmann, Martin Schiller, Sandra Schwegmann   +8 more
doaj   +1 more source

Sea Wave Data Reconstruction Using Micro-Seismic Measurements and Machine Learning Methods

Frontiers in Marine Science, 2022
Sea wave monitoring is key in many applications in oceanography such as the validation of weather and wave models. Conventional in situ solutions are based on moored buoys whose measurements are often recognized as a standard. However, being exposed to a
Lorenzo Iafolla, Emiliano Fiorenza, Massimo Chiappini, Cosmo Carmisciano, Valerio Antonio Iafolla   +4 more
doaj   +1 more source

Experimental Studies of Interaction Forces Affect the Position of Vertical Plates on Oscillating Heave Plates with Cylindrical Bodies in Regular Waves

International Journal of Renewable Energy Development, 2020
This paper discusses an experimental study of a wave energy converter (WEC) without using reaction from the seabed. The WEC uses buoys and heave plates, which can react to their self-reacting.
Eko Sasmito Hadi, Muhammad Iqbal, Ari Wibawa, Ojo Kurdi, Karnoto Karnoto   +4 more
doaj   +1 more source

Underwater Communication Using UAVs to Realize High-Speed AUV Deployment

Remote Sensing, 2021
To monitor ocean and seafloor properties in detail, sensors are generally installed on autonomous underwater vehicles (AUVs). An AUV cannot accurately determine its absolute position and needs to communicate with a sea-surface vehicle.
Yusuke Yokota, Takumi Matsuda
doaj   +1 more source

An Overview on Bonded Marine Hoses for Sustainable Fluid Transfer and (Un)Loading Operations via Floating Offshore Structures (FOS)

Journal of Marine Science and Engineering, 2021
Due to the demand for oil production in varying water depth regions, the advantage of flexible buoyant conduits has led to an increase in bonded marine hoses for fluid transfer and (un)loading operations. The fluid transfer system for bonded marine hoses
Chiemela Victor Amaechi, Cole Chesterton, Harrison Obed Butler, Facheng Wang, Jianqiao Ye   +4 more
doaj   +1 more source