Article
Environmental Sciences
Jingru Sun, Gabriel Vecchi, Brian Soden
Summary: Satellite remote sensing data spanning multiple years have been used in this study to investigate the climatological characteristics of sea surface salinity (SSS) response to tropical cyclones (TCs). The study found that TCs initially lead to a decrease in SSS due to precipitation, followed by a salinification largely driven by vertical ocean processes. Factors such as TC intensity, translation speed, and vertical stratification in different basins also significantly impact the salinity response during and after TC passage.
Article
Environmental Sciences
Weicheng Ni, Ad Stoffelen, Kaijun Ren, Xiaofeng Yang, Jur Vogelzang
Summary: A new wind speed adjustment method is proposed based on statistical analysis of SAR and ASCAT Tropical Cyclone data, effectively reducing ASCAT wind errors and alleviating differences between ASCAT and SAR wind speeds.
Article
Geochemistry & Geophysics
Guosheng Zhang, Chao Xu, Xiaofeng Li, Ziqiang Zhu, William Perrie
Summary: This study proposes a method to estimate the center location, intensity, and radius of maximum wind of tropical cyclones (TCs) using ocean winds observed by the Soil Moisture Active Passive (SMAP) radiometer. The method is validated by comparing the estimated hurricane centers and wind distributions with measurements from other instruments. The results demonstrate the significance of this simple method in estimating TC parameters from SMAP wind products, despite the low spatial resolution.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Meteorology & Atmospheric Sciences
Shuo Li, Wei Mei, Shang-Ping Xie
Summary: This study quantifies the contributions of tropical sea surface temperature (SST) variations during the boreal warm season to the interannual-to-decadal variability in tropical cyclone genesis frequency (TCGF) over the Northern Hemisphere ocean basins. The study finds that the dominant SST modes affecting TCGF vary among different basins and are related to ENSO, GW, PMM, AMO, PDO, and AMM. These modes explain a portion of the variance in TCGF in the North Atlantic, northeast Pacific, and northwest Pacific Oceans.
JOURNAL OF CLIMATE
(2022)
Article
Oceanography
Syarawi M. H. Sharoni, Mohd Nadzri Md Reba, Mohammad Shawkat Hossain
Summary: This study examines the response of satellite altimeter-derived ocean parameters to wind speed inside tropical cyclones, finding that the accuracy of U-10 estimation is reduced in high wind speed and rainy conditions. New models incorporating multiple ocean parameters show improved U-10 estimation accuracy up to 35 ms(-1), particularly in extreme tropical cyclone environments. The study highlights the ability of satellite altimeters to accurately estimate U-10 in extreme conditions.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Construction & Building Technology
Genshen Fang, Miaomiao Wei, Lin Zhao, Kun Xu, Shuyang Cao, Yaojun Ge
Summary: A stochastic simulation-based algorithm is developed to determine the design extreme wind speed vertical profile of tropical cyclones, providing a rational estimation of TC-induced wind loadings for high-rise structures.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Oceanography
Zhengbei Zhang, Jing Wang, Dongliang Yuan
Summary: The balance of mixed layer salinity (MLS) in the eastern tropical Indian Ocean has been investigated using observations and model output. The study finds that the annual mean MLS is determined by the balance between surface freshwater forcing and ocean advection. The seasonal variation of MLS in the eastern equatorial Indian Ocean is influenced by salt advection associated with the Wyrtki Jet. MLS is lowest in summer due to freshwater advection, while it reaches its maximum in fall due to strong evaporation. During the negative Indian Ocean Dipole (IOD), eastward currents transport high-salinity water, leading to positive MLS anomalies. The MLS balance during positive IOD is nearly the opposite of that during negative IOD.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Multidisciplinary Sciences
Kana Kamimura, Kazuki Nanko, Asako Matsumoto, Saneyoshi Ueno, James Gardiner, Barry Gardiner
Summary: This article discusses the damage caused by tropical cyclones to forests and trees in the future with climate change, and explores the mechanical behavior of trees during tropical cyclones and the impact of inter-tree spacing on damage levels.
Article
Environmental Sciences
Huabing Xu, Yucai Shan, Guangjun Xu
Summary: This study compared the accuracy of S-SMAP and S-SMOS in the Bay of Bengal before and after tropical cyclones, using S-Argo as the reference. The results showed that S-SMAP had higher correlation and lower root mean square error compared to S-SMOS. Furthermore, S-SMAP performed well in both nearshore and offshore waters. Overall, S-SMAP was found to be better than S-SMOS.
Article
Meteorology & Atmospheric Sciences
Jie Cao, Guanbo Zhou, Longsheng Liu, Wei Zhao, Yan Yan
Summary: This study analyzes the contributions of divergent and rotational winds to the kinetic energy budget in different quadrants during the recurvature of Typhoon Rumbia. The importance of divergent and rotational kinetic components in the energy budget is investigated. The results show that the KE budget by the divergent wind is vital during the typhoon recurvature.
ATMOSPHERIC RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Sheng Wang, Xiaofeng Yang, Marcos Portabella, Ka-Veng Yuen, Miao Zhang, Yanlei Du
Summary: This article proposes a parametric tangential wind profile (TWP) model based on high-spatial-resolution synthetic aperture radar (SAR) imagery, which outperforms the commonly used single-modified Rankine vortex (SMRV) model in resolving the tangential wind profile shape, and can be used for improved TC characterization and forecasting.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Geosciences, Multidisciplinary
Shoude Guan, Wei Zhao, Liang Sun, Chun Zhou, Ze Liu, Xin Hong, Yihan Zhang, Jiwei Tian, Yijun Hou
Summary: This study examines and contrasts the sea surface temperature (SST) responses of the shallow waters of the Yellow Sea and the Bohai Sea to four tropical cyclones in the 2019 Pacific typhoon season. Lekima, with relatively weaker intensity, induced the largest and most widespread SST cooling over the Yellow Sea basin, attributed to the stratified and sharp thermal structure in August. The buoy observations show that over 80% of the TC-induced SST cooling occurred ahead of the TC eye center approaching, and the TC contributes significantly to the SST seasonal cycle of coastal waters by disrupting the seasonal SST evolution lasting for tens of days.
JOURNAL OF MARINE SYSTEMS
(2021)
Article
Geochemistry & Geophysics
Sheng Wang, Ka-Veng Yuen, Xiaofeng Yang, Biao Zhang
Summary: This study successfully estimates the wind speed of tropical cyclones using dual-polarization synthetic aperture radar (SAR) signals and proposes a novel wind speed estimation model. The validation results demonstrate good consistency between the model and the actual measurements.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Engineering, Marine
Xingkun Xu, Joey J. Voermans, Qingxiang Liu, Il-Ju Moon, Changlong Guan, Alexander V. Babanin
Summary: The study investigated the thermal effects of sea spray on a tropical cyclone and found that sea spray has significant impacts on the atmospheric and oceanic environments, suggesting the need to include sea spray in cyclone forecasting models.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Marine
Jianmin Yu, Haibin Lv, Simei Tan, Yuntao Wang
Summary: This study investigates the sea surface temperature (SST) changes caused by 96 tropical cyclones (TCs) in the northern Indian Ocean (NIO) over an 18-year period. It reveals that within a radius of 300 km from the TC center, SST decreases were observed at 86% of locations, with an average SST response of -0.46 degrees C and a maximum decrease of -2.07 degrees C. The most significant reduction in SST typically occurred two days after the passage of TCs, followed by a gradual recovery period exceeding 15 days for the SSTs to return to their initial values. Stronger and slower-moving TCs induced more substantial cooling effects.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Hui Chen, Wenyan Zhang, Xinong Xie, Ya Gao, Shan Liu, Jianye Ren, Dongxiao Wang, Ming Su
Summary: This study combines high-resolution bathymetry and 2-D seismic data with 3-D hydrodynamic numerical simulation to identify Quaternary plastered contourite drifts in the South China Sea. The study reveals the impacts of different water masses on bottom currents and the formation of different geological features. Additionally, the study highlights the role of large-scale ocean circulations in shaping continental slopes through the interaction between topography and currents.
Article
Limnology
Di Tian, Feng Zhou, Wenyan Zhang, Han Zhang, Xiao Ma, Xinyu Guo
Summary: The study revealed that changes in dissolved oxygen (DO) concentration in the Kuroshio have significant impacts on hypoxia in the East China Sea (ECS), while nutrients also play a role in influencing hypoxia to a certain extent. On the other hand, the effect of silicate on hypoxia can be considered negligible.
JOURNAL OF OCEANOLOGY AND LIMNOLOGY
(2022)
Article
Oceanography
Lucas Porz, Wenyan Zhang, Corinna Schrum
Summary: The morphological evolution of two mud depocenters in the southwestern Baltic Sea is investigated by comparing numerical model results to geological and oceanographic data. The study shows that the dense currents during episodic dense-water inflows from the North Sea correspond to contouritic depositional geometries in the flow-confining channels. The model results indicate that external forcing and basin geometry control the mesoscale dynamics of inflow events.
Review
Oceanography
Qi Quan, Zhiqiang Liu, Yang Yang, Zhongya Cai, Han Zhang, Xiaohui Liu
Summary: This study characterizes the intraseasonal fluctuations in the deep South China Sea (SCS) and evaluates the energy budget using observations and numerical simulations. The study finds substantial geographical inhomogeneity in the energy reservoir and suggests quasigeostrophic dynamics as the main driver of intraseasonal motions. The study also identifies the primary and secondary sources of energy, as well as the dissipative processes. Overall, this study provides important insights into the distribution and dissipation of energy in the deep abyssal ocean.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Xiaohui Li, Jingsong Yang, Guoqi Han, Lin Ren, Gang Zheng, Peng Chen, Han Zhang
Summary: This paper investigates the performance of ERA5 in representing tropical cyclones and finds that ERA5 underestimates the maximum wind speed. An effective wind reconstruction method is proposed to improve the accuracy of tropical cyclone representation in ERA5.
Article
Environmental Sciences
Qicheng Meng, Feng Zhou, Xiao Ma, Jiliang Xuan, Han Zhang, Shuai Wang, Xiaobo Ni, Wenyan Zhang, Bin Wang, Dewang Li, Di Tian, Jia Li, Jiangning Zeng, Jianfang Chen, Daji Huang
Summary: This study reconstructed the details of coastal hypoxia development in the East China Sea in response to Typhoon Bavi using numerical modeling. The results showed that typhoon-induced oceanic advection played an important role in the development of hypoxia and redistribution of deposited organic matter in coastal shelf seas.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Jingli Liu, Han Zhang, Rui Zhong, Bo Han, Renhao Wu
Summary: This study conducted numerical experiments to explore the sensitivity of typhoon track, intensity, structure, and oceanic response to the feedbacks of ocean surface waves and different planetary boundary layer parameterization schemes. The results showed that these factors have a significant impact on typhoon intensity and structure, especially the distribution of air-sea interface heat flux and the shape of the typhoon center.
ATMOSPHERIC RESEARCH
(2022)
Article
Geochemistry & Geophysics
Jianmin Lin, Sunke Fang, Wen Xu, Sidao Ni, Han Zhang, Ting Yang
Summary: This study presents a comprehensive investigation of microseisms generated by typhoon Kalmaegi in 2014, revealing two different generation mechanisms. The findings are crucial for future tracking and monitoring of typhoons.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Environmental Sciences
Jiannan Wang, Xiaohui Xie, Shaofeng Li, Han Zhang, Wei Li
Summary: Recent mooring observations on the continental slope of the Dongsha Island in the northeastern South China Sea demonstrate the generation of along-slope bottom currents due to the dissipation of obliquely incident internal tides. New mooring data collected on the south side of the island confirms the ability of the previous theory in estimating the along-slope current. Strong near-bottom energy dissipation and a southwestward along-slope current are observed, with the maximum velocity exceeding 6 cm/s.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Mengyao Ma, Wenyan Zhang, Wei Chen, Junjie Deng, Corinna Schrum
Summary: The Pearl River Delta has experienced significant changes in its hydro-morphology, with a reduction in water area by 21% and an increase in average water depth by 2.24 m. This study investigates the response of stratification in the Pearl River Estuary to morphological change and external forcing using three-dimensional numerical modeling. The results show that stratification exhibits distinct spatial and temporal variabilities, with human-induced morphological change enhancing stratification by up to four times. Future sea level rise would further enhance stratification, but to a lesser extent than past human impacts. Stratification in different areas of the estuary also responds differently to driving factors.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Xiayan Lin, Guixi Wang, Guoqing Han, Yu Liu, Han Zhang, Xiaomei Liao, Qiyan Ji
Summary: Cross-slope eddies are crucial for the exchange of various biogeochemical elements between the basin and shelf in the South China Sea. This study used the ROMS model and satellite data to investigate the cross-slope transport process by a mesoscale anticyclonic eddy. The results showed different characteristics of the anticyclone at different locations on the slope, with enhanced on and off-slope transports during the cross-slope process.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Oceanography
Yinfeng Xu, Feng Zhou, Qicheng Meng, Dingyong Zeng, Tao Yan, Wenyan Zhang
Summary: Water renewal through the Bohai Strait largely determines the water quality of the semi-enclosed Bohai Sea. The water transport occurs mainly in summer but does not significantly decrease the residence time of the sea. The study reveals that the northern Laotieshan Channel acts as a barrier, limiting the water exchange between the strait and the BS interior.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
Article
Geology
Henriette Wilckens, Tilmann Schwenk, Thomas Ludmann, Christian Betzler, Wenyan Zhang, Jiayue Chen, F. Javier Hernandez-Molina, Alice Lefebvre, Antonio Cattaneo, Volkhard Spiess, Elda Miramontes
Summary: The aim of this study is to improve the understanding of the interaction between sedimentary systems and oceanographic processes in deep-water environments. By analyzing a large number of cross-sections of moat-drift systems from different locations worldwide, as well as in situ measured current data, the study provides new insights into the link between moat-drift system morphology and bottom current dynamics. Findings show that the slope angle and drift angle of bottom currents have an impact on the morphology of moat-drift systems.
Article
Environmental Sciences
Xiayan Lin, Hui Zhao, Yu Liu, Guoqing Han, Han Zhang, Xiaomei Liao
Summary: This study analyzed the statistical characteristics of mesoscale eddies in the Drake Passage using a 10-year dataset from 2009 to 2018. The findings revealed that the eddies had an average radius of 35.5 km, a mean lifespan of 12.3 weeks, and a mean vorticity of 2.2 x 10(-5) s(-1). They were most active near the three main fronts and propagated northeastward at an average distance of 97.8 km. The shape, size, and distribution of the eddies varied with water depth, with anticyclones dominating near the surface and cyclones having longer lifespans and greater vorticity.
Review
Geosciences, Multidisciplinary
H. E. Markus Meier, Madline Kniebusch, Christian Dieterich, Matthias Groeger, Eduardo Zorita, Ragnar Elmgren, Kai Myrberg, Markus P. Ahola, Alena Bartosova, Erik Bonsdorff, Florian Boergel, Rene Capell, Ida Carlen, Thomas Carlund, Jacob Carstensen, Ole B. Christensen, Volker Dierschke, Claudia Frauen, Morten Frederiksen, Elie Gaget, Anders Galatius, Jari J. Haapala, Antti Halkka, Gustaf Hugelius, Birgit Huenicke, Jaak Jaagus, Mart Jussi, Jukka Kayhko, Nina Kirchner, Erik Kjellstrom, Karol Kulinski, Andreas Lehmann, Goran Lindstrom, Wilhelm May, Paul A. Miller, Volker Mohrholz, Barbel Muller-Karulis, Diego Pavon-Jordan, Markus Quante, Marcus Reckermann, Anna Rutgersson, Oleg P. Savchuk, Martin Stendel, Laura Tuomi, Markku Viitasalo, Ralf Weisse, Wenyan Zhang
Summary: This study summarises and assesses the effects of global warming on past and future climate changes in the Baltic Sea region based on recent assessment reports and literature. While the main conclusions from earlier assessments still remain valid, new observational records and improved models have provided a better understanding of changes in certain variables and the influence of natural variability. However, challenges remain in attributing observed changes in marine ecosystems to climate change and reconciling differences in cloudiness trends between global and regional models.
EARTH SYSTEM DYNAMICS
(2022)
