Acta Oceanologica Sinica

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Spectral classification of water masses under the influence of the Amazon River plume
Acta Oceanologica Sinica - Tập 29 - Trang 1-8 - 2010
Gustavo Souto Fontes Molleri, Milton Kampel, Evlyn Márcia Leão de Moraes Novo
The large amount of dissolved and particulate material discharged by the Amazon River into the Equatorial Atlantic Ocean cause distinct spectral response of its waters as compared to the nearby ocean waters. This paper shows the application of K-means clustering algorithm for classifying water masses in the region under the Amazon River plume influence according to their spectral behavior. Salinit...... hiện toàn bộ
Under-ice ambient noise in the Arctic Ocean: observations at the long-term ice station
Acta Oceanologica Sinica - Tập 39 - Trang 125-132 - 2020
Xiao Han, Jingwei Yin, Yanming Yang, Hongtao Wen, Longxiang Guo
Under-ice ambient noise in the Arctic Ocean is studied using the data recorded by autonomous hydrophones at the long-term ice station during the 9th Chinese National Arctic Research Expedition. Time-frequency analysis of two 7-s-long ice-induced noise samples shows that both ice collision and ice breaking noise have many outliers in the time-domain (impulsive characteristic) and abundant frequency...... hiện toàn bộ
Sea surface temperature retrieval based on simulated microwave polarimetric measurements of a one-dimensional synthetic aperture microwave radiometer
Acta Oceanologica Sinica - Tập 40 - Trang 122-133 - 2021
Mengyan Feng, Weihua Ai, Wen Lu, Chengju Shan, Shuo Ma, Guanyu Chen
Compared with traditional real aperture microwave radiometers, one-dimensional synthetic aperture microwave radiometers have higher spatial resolution. In this paper, we proposed to retrieve sea surface temperature using a one-dimensional synthetic aperture microwave radiometer that operates at frequencies of 6.9 GHz, 10.65 GHz, 18.7 GHz and 23.8 GHz at multiple incidence angles. We used the ERA5 ...... hiện toàn bộ
Evaluating a satellite-based sea surface temperature by shipboard survey in the Northwest Indian Ocean
Acta Oceanologica Sinica - Tập 35 - Trang 52-58 - 2016
Guang Yang, Hailun He, Yuan Wang, Xiqiu Han, Yejian Wang
A summer-time shipboard meteorological survey is described in the Northwest Indian Ocean. Shipboard observations are used to evaluate a satellite-based sea surface temperature (SST), and then find the main factors that are highly correlated with errors. Two satellite data, the first is remote sensing product of a microwave, which is a Tropical Rainfall Measuring Mission Microwave Imager (TMI), and...... hiện toàn bộ
Role of surface warming in the northward shift of tropical cyclone tracks over the South China Sea in November
Acta Oceanologica Sinica - Tập 36 - Trang 67-72 - 2017
Jia Sun, Guihua Wang, Juncheng Zuo, Zheng Ling, Dahai Liu
Tropical cyclones (TCs) formed in the Northwest Pacific Ocean (NWP) can cross the South China Sea (SCS) sometimes. It is found that the TC tracks in the SCS in November are shifted to the north after 1980 compared with those before 1980. Both data analyses and numerical simulations show that the surface warming in the SCS may contribute to this more northward shift. The warming produces a cyclonic...... hiện toàn bộ
Demonstration of the refined three-dimensional structure of mesoscale eddies and computational error estimates via Lagrangian analysis
Acta Oceanologica Sinica - Tập 39 - Trang 146-164 - 2020
Heqing Yin, Haijin Dai, Weimin Zhang, Xueyan Zhang, Pinqiang Wang
In previous studies, Lagrangian analyses were used to assess large-scale ocean circulation, and the Lagrangian coherent structure could also reveal the evolution of the two-dimensional structure of the mesoscale eddies. However, few studies have demonstrated the three-dimensional structure of the mesoscale eddies via Lagrangian analysis. Compared with previous studies, which investigated the eddy ...... hiện toàn bộ
Phân bố oxy hòa tan và nguyên nhân của nồng độ tối đa trong biển Bering vào tháng 7 năm 2010 Dịch bởi AI
Acta Oceanologica Sinica - Tập 33 - Trang 20-27 - 2014
Xiuwu Sun, Cai Lin, Yong Chen, Yuanbiao Zhang, Jigang Wang, Weidong Ji
Dựa trên dữ liệu thu được trong biển Bering trong quá trình Thám hiểm Bắc Cực Quốc gia Trung Quốc lần thứ 4, sự phân bố của oxy hòa tan (DO) đã được nghiên cứu, nguyên nhân của nồng độ tối đa được thảo luận, và mối quan hệ giữa DO và các thông số khác như độ mặn, nhiệt độ và chlorophyll a đã được phân tích. Kết quả cho thấy nồng độ DO dao động từ 0,53 đến 12,05 mg/L trong lưu vực biển Bering. Nước...... hiện toàn bộ
#Oxy hòa tan #biển Bering #độ mặn #nhiệt độ #chlorophyll a #quang hợp của thực vật phù du
Recent changing patterns of the Changjiang (Yangtze River) Estuary caused by human activities
Acta Oceanologica Sinica - - 2017
Chenglong Wang, Yifei Zhao, Xiong Xu, Chendong Ge
An insight into shallow gas hydrates in the Dongsha area, South China Sea
Acta Oceanologica Sinica - - 2021
Bin Liu, Jiangxin Chen, Luís Pinheiro, Yang Li, Shengxuan Liu, Yanan Guan, Haibin Song, Nengyou Wu, Hui Xu, Rui Yang
Observed features of temperature, salinity and current in central Chukchi Sea during the summer of 2012
Acta Oceanologica Sinica - Tập 34 - Trang 51-59 - 2015
Yan He, Na Liu, Hongxia Chen, Fei Teng, Lina Lin, Huiwu Wang
During the summer of 2012, the fifth CHINARE Arctic Expedition was carried out, and a submersible mooring system was deployed in M5 station located at (69°30.155'N,169°00.654'W) and recovered 50d later. A set of temperature, salinity and current profile records was acquired. The characteristics of these observations are analyzed in this paper. Some main results are achieved as below. (1) Temperatu...... hiện toàn bộ
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