Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Yongjun Jia"'
Publikováno v:
Geodesy and Geodynamics, Vol 15, Iss 4, Pp 419-428 (2024)
The deflection of the vertical (DOV) is the key information in the study of ocean gravity field. However, in most areas, the precision of the prime component of DOV is significantly lower than that of the meridian component. To obtain higher accuracy
Externí odkaz:
https://doaj.org/article/6e3836858a4c4c0dbdbe32c4eeda2244
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
ABSTRACTThis work compares the Haiyang-2 (HY-2) altimeter data with the well-recognized satellite oceanographic data (AVISO) product in the global ocean in their capability of detecting mesoscale eddy. A well-established method to detect mesoscale ed
Externí odkaz:
https://doaj.org/article/6147a6cbc6a243b48c55ddf463aa6fed
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3154 (2024)
Seafloor topography prediction can fill in sea areas without ship sounding data. However, the dependence of various topographic prediction algorithms on ship soundings varies significantly. Hence, this study explores the impact of the number and dist
Externí odkaz:
https://doaj.org/article/94655c69d4234b9d906ec81471131b34
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1336 (2024)
Haiyang-2A (HY-2A) is the first marine dynamic environment satellite established by China, which has made significant contributions to the marine scientific research field. It carries the satellite-based GPS receiver named HY2, which was independentl
Externí odkaz:
https://doaj.org/article/b177e01877f042c8819dfd934bc87724
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-14 (2022)
Abstract In this study, China’s first altimeter satellite Haiyang-2A (HY-2A) data combined observations from CryoSat-2, SARAL/AltiKa, and Jason-1&2 are used to calculate the global (60°S–60°N) marine deflections of the vertical and gravity anom
Externí odkaz:
https://doaj.org/article/ad133448d61f495d8086b145e840270b
Publikováno v:
Remote Sensing, Vol 15, Iss 24, p 5643 (2023)
The HY-2D satellite was successfully launched in 2022, which marks the first phase of the HY-2 satellite constellation. In order to reduce the deviation of wet path delay (WPD) between different satellites in the HY-2 satellite constellation and incr
Externí odkaz:
https://doaj.org/article/8d9894a76d6d4f1abb6d1faa3da7d8af
Publikováno v:
地球与行星物理论评, Vol 53, Iss 2, Pp 172-186 (2022)
The sea depth is the vertical distance from the sea surface to the seafloor, reflecting the ups and downs of the seafloor topography. Seafloor topography affects the marine natural disasters, resource development, military defense, etc. The detection
Externí odkaz:
https://doaj.org/article/77abb4e6f1224b91ae6c17cb8ce3e85f
Publikováno v:
Remote Sensing, Vol 15, Iss 19, p 4780 (2023)
China’s first dynamic environment satellite constellation includes the HY-2B, HY-2C, and HY-2D satellites. In this study, the along track SLA, SWH, and SSWS of this satellite constellation were evaluated. SLA parameters are evaluated using self-cro
Externí odkaz:
https://doaj.org/article/97e42a897cab481ebc10d579fc80abe0
Autor:
Chi Zhang, Xi Zhang, Jie Zhang, Gui Gao, Yongshou Dai, Genwang Liu, Yongjun Jia, Xiaochen Wang, Yi Zhang, Meng Bao
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 9311-9326 (2022)
As artificial intelligence continues to advance, deep learning has greatly contributed to the advancement of ship recognition using synthetic aperture radar (SAR) images. Deep learning-based SAR ship recognition performance is largely dependent on th
Externí odkaz:
https://doaj.org/article/f63a145a0097407bb52602e1e13b1d66
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 2797-2804 (2022)
The ultrafinestrip (UFS) of the Gaofen-3 (GF-3) satellite provides extensive ocean wave details due to the high spatial resolution of 3 m. In this article, a new empirical model is developed to estimate wave height from GF-3 UFS mode data in South Ch
Externí odkaz:
https://doaj.org/article/fafbc4058d254a4290871cc4ad73f194