A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation

Short-wavelength (15–150 km) ocean phenomena are difficult to be observed by conventional altimeter due to the sampling method limited the resolution of the data. It is, therefore, the future wide-swath interferometric altimetry (WIA) missions like “SWOT” and &#x...

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Autores principales: Chen Wang, Fangjie Yu, Zhiyuan Zhuang, Junwu Tang, Hanwei Sun, Ge Chen
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Lenguaje:EN
Publicado: IEEE 2021
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spelling oai:doaj.org-article:e186381fc5fc4e47b29030da0299b0e72021-11-17T00:00:15ZA Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation2151-153510.1109/JSTARS.2021.3119034https://doaj.org/article/e186381fc5fc4e47b29030da0299b0e72021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9566825/https://doaj.org/toc/2151-1535Short-wavelength (15–150 km) ocean phenomena are difficult to be observed by conventional altimeter due to the sampling method limited the resolution of the data. It is, therefore, the future wide-swath interferometric altimetry (WIA) missions like “SWOT” and “Guanlan” are designed to observe these phenomena. However, observing the short-wavelength dynamic process of the high eddy kinetic energy (EKE) region is still a challenge. The short-wavelength validation of WIA is also an urgent problem to be solved. In-situ observation platforms array can provide data set with high spatial and temporal resolution, which can capture short-wavelength dynamic process and validate the altimeter data. Simulation is a key to verify the feasibility of the observation strategy. In this article, we carried out simulated observation experiments based on high spatial-temporal resolution numerical models and introduced motion model of mooring and keep-station glider to improve the accuracy of in-situ observation simulation under the influence of the dynamic ocean currents which optimized by deep learning methods. In this experiment, the steric height, reconstructed by different observation array strategies, and the sea surface height of the measured positions are compared based on wavenumber spectrum. We tested the performance of the mooring array, station-keeping glider array, mooring and wave-energy profiling buoy (M&WPB) combination array, and multidevice array. The results show that the glider and M&WPB arrays have better performance of strong current regions. It could be helpful for the observation of dynamic processes in high EKE regions and has potential application for the validation of WIA.Chen WangFangjie YuZhiyuan ZhuangJunwu TangHanwei SunGe ChenIEEEarticleAltimetrymarine equipmentsimulationOcean engineeringTC1501-1800Geophysics. Cosmic physicsQC801-809ENIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 11287-11296 (2021)
institution DOAJ
collection DOAJ
language EN
topic Altimetry
marine equipment
simulation
Ocean engineering
TC1501-1800
Geophysics. Cosmic physics
QC801-809
spellingShingle Altimetry
marine equipment
simulation
Ocean engineering
TC1501-1800
Geophysics. Cosmic physics
QC801-809
Chen Wang
Fangjie Yu
Zhiyuan Zhuang
Junwu Tang
Hanwei Sun
Ge Chen
A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
description Short-wavelength (15–150 km) ocean phenomena are difficult to be observed by conventional altimeter due to the sampling method limited the resolution of the data. It is, therefore, the future wide-swath interferometric altimetry (WIA) missions like “SWOT” and “Guanlan” are designed to observe these phenomena. However, observing the short-wavelength dynamic process of the high eddy kinetic energy (EKE) region is still a challenge. The short-wavelength validation of WIA is also an urgent problem to be solved. In-situ observation platforms array can provide data set with high spatial and temporal resolution, which can capture short-wavelength dynamic process and validate the altimeter data. Simulation is a key to verify the feasibility of the observation strategy. In this article, we carried out simulated observation experiments based on high spatial-temporal resolution numerical models and introduced motion model of mooring and keep-station glider to improve the accuracy of in-situ observation simulation under the influence of the dynamic ocean currents which optimized by deep learning methods. In this experiment, the steric height, reconstructed by different observation array strategies, and the sea surface height of the measured positions are compared based on wavenumber spectrum. We tested the performance of the mooring array, station-keeping glider array, mooring and wave-energy profiling buoy (M&WPB) combination array, and multidevice array. The results show that the glider and M&WPB arrays have better performance of strong current regions. It could be helpful for the observation of dynamic processes in high EKE regions and has potential application for the validation of WIA.
format article
author Chen Wang
Fangjie Yu
Zhiyuan Zhuang
Junwu Tang
Hanwei Sun
Ge Chen
author_facet Chen Wang
Fangjie Yu
Zhiyuan Zhuang
Junwu Tang
Hanwei Sun
Ge Chen
author_sort Chen Wang
title A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
title_short A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
title_full A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
title_fullStr A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
title_full_unstemmed A Simulation Experiment on In-Situ Observation of Short-Wavelength Scale Dynamic Processes and Potential Applications to Wide-Swath Interferometric Altimetry Validation
title_sort simulation experiment on in-situ observation of short-wavelength scale dynamic processes and potential applications to wide-swath interferometric altimetry validation
publisher IEEE
publishDate 2021
url https://doaj.org/article/e186381fc5fc4e47b29030da0299b0e7
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