Preface: Remote Sensing Applications in Ocean Observation

Ho, Chung-Ru; Liu, Antony K.

doi:10.3390/rs15020415

Cited by 2 publications

(2 citation statements)

References 86 publications

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“…Ocean wind and waves are crucial environmental dynamic elements that jointly affect marine meteorology, ocean-atmosphere interactions, as well as global economics and safety [1][2][3]. Large-coverage synchronous monitoring of ocean wind and waves is urgently needed to establish a more accurate ocean surface model, so as to better understand ocean dynamics [4][5][6].…”

Section: Introduction 1background and Challengementioning

confidence: 99%

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Concept of Spaceborne Ocean Microwave Dual-Function Integrated Sensor for Wind and Wave Measurement

Li,

Liu,

Sun

et al. 2024

Remote Sensing

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Dedicated to synchronously acquiring large-area, high-precision, and multi-scale ocean wind and wave information, a novel concept of a spaceborne ocean microwave dual-function integrated sensor is proposed in this paper. It integrates the functions of a scatterometer and SAR by sharing a single phased-array antenna. An overview of the scientific requirements and motivations for the sensor are outlined firstly. In order to fulfill the observation requirements of both the functions, the constraints on the system parameters such as frequency, antenna size, and incidence angle are analyzed. Then, the selection principles of these parameters are discussed within the limitations of antenna area, bandwidth, available time, and cost. Additionally, the constraints on the time sequence of transmitting and receiving pulses are derived to ensure that there is no conflict when the two functions operate simultaneously. Subsequently, a method for jointly designing the pulse repetition frequency (PRF) of both the functions is introduced, along with zebra maps to verify its effectiveness. At the end of the paper, the system and performance parameters of the sensor are given for further insight into it.

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Section: Introduction 1background and Challengementioning

confidence: 99%

“…The SAR function mainly includes the following four operating modes: (1) The antenna transmits pulses towards the specific observation position in the side-looking direction with a constant incidence angle. This mode offers high resolution but at the expense of a narrow swath.…”

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confidence: 99%

Concept of Spaceborne Ocean Microwave Dual-Function Integrated Sensor for Wind and Wave Measurement

Li,

Liu,

Sun

et al. 2024

Remote Sensing

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An Advanced Spatiotemporal Fusion Model for Suspended Particulate Matter Monitoring in an Intermontane Lake

et al. 2023

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Ebinur Lake is the largest brackish-water lake in Xinjiang, China. Strong winds constantly have an impact on this shallow water body, causing high variability in turbidity of water. Therefore, it is crucial to continuously monitor suspended particulate matter (SPM) for water quality management. This research aims to develop an advanced spatiotemporal fusion model based on the inversion technique that enables time-continuous and detailed monitoring of SPM over an intermontane lake. The findings shows that: (1) the enhanced spatial and temporal adaptive reflectance fusion model (ESTARFM) fusion in blue, green, red, and near infrared (NIR) bands was better than the flexible spatiotemporal data fusion (FSDAF) model in extracting SPM information; (2) the inversion model constructed by random forest (RF) outperformed the support vector machine (SVM) and partial least squares (PLS) algorithms; and (3) the SPM concentrations acquired from the fused images of Landsat 8 OLI and ESTARFM matched with the actual data of Ebinur Lake based on the visual perspective and accuracy assessment.

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Preface: Remote Sensing Applications in Ocean Observation

Abstract: The launch of Seasat, TIROS-N and Nimbus-7 satellites equipped with ocean observation sensors in 1978 opened the way for remote sensing applications in ocean observation [...]

Cited by 2 publications

References 86 publications

Concept of Spaceborne Ocean Microwave Dual-Function Integrated Sensor for Wind and Wave Measurement

Concept of Spaceborne Ocean Microwave Dual-Function Integrated Sensor for Wind and Wave Measurement

An Advanced Spatiotemporal Fusion Model for Suspended Particulate Matter Monitoring in an Intermontane Lake

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