@article{zeng_adams_roffer_he_2019, title={Potential connectivity among spatially distinct management zones for Bonefish (Albula vulpes) via larval dispersal}, volume={102}, ISSN={["1573-5133"]}, DOI={10.1007/s10641-018-0826-z}, number={2}, journal={ENVIRONMENTAL BIOLOGY OF FISHES}, author={Zeng, Xiangming and Adams, Aaron and Roffer, Mitchell and He, Ruoying}, year={2019}, month={Feb}, pages={233–252} } @article{zeng_he_zong_2017, title={Variability of Changjiang Diluted Water revealed by a 45-year long-term ocean hindcast and Self-Organizing Maps analysis}, volume={146}, ISSN={["1873-6955"]}, DOI={10.1016/j.csr.2017.08.010}, abstractNote={Based on long-term realistic ocean circulation hindcast for in the Bohai, Yellow, and East China Seas, 45 years (1961–2005) of sea surface salinity data were analyzed using Self-Organizing Maps (SOM) to have a better understanding of the Changjiang Diluted Water (CDW) variation. Three spatial patterns were revealed by the SOM: normal, transition, and extension. The normal pattern mainly occurs from December to May while the CDW hugs China's east coast closely and flows southward. The extension pattern is dominant from June to October when the CDW extends northwestward toward Jeju Island in an omega shape. The transition pattern prevails for the rest of the year. Pattern-averaged temperature, circulation, and chlorophyll-a concentration show significant differences. CDW area and its eastern most extension were explored as a function of the Changjiang runoff and regional upwelling index. We found that Changjiang runoff and upwelling index can be reasonable predictors for the overall CDW area, while ambient circulation determines the distribution and structure of the CDW, and thus the CDW eastern most extension.}, journal={CONTINENTAL SHELF RESEARCH}, publisher={Elsevier BV}, author={Zeng, Xiangming and He, Ruoying and Zong, Haibo}, year={2017}, month={Aug}, pages={37–46} } @article{zeng_he_2016, title={Gulf Stream variability and a triggering mechanism of its large meander in the South Atlantic Bight}, volume={121}, ISSN={["2169-9291"]}, DOI={10.1002/2016jc012077}, abstractNote={The Gulf Stream (GS) variability has an important impact on coastal circulation, shelf ecosystem, and regional weather and climate systems. Here we focus on the variability of the GS south of Cape Hatteras in the South Atlantic Bight (SAB). Statistical analysis on the 21 year satellite altimetry data reveals that the GS path in the SAB has two patterns: weakly and strongly deflected. The strongly deflected pattern is more likely to occur in winter. Over the last two decades, the largest GS offshore meander occurred in November 2009 to April 2010. Realistic ocean hindcast simulation and adjoint sensitivity analysis are used to investigate the triggering mechanisms for this extreme event. Our analyses show that a net increase of relative vorticity near the Charleston Bump was generated by strong interaction between increased GS velocity and local bathymetry, pushing the GS further offshore by virtue of conserving the potential vorticity. Quantitative vorticity analysis confirms this finding.}, number={11}, journal={JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS}, publisher={Wiley}, author={Zeng, Xiangming and He, Ruoying}, year={2016}, month={Nov}, pages={8021–8038} } @article{zeng_li_he_yin_2015, title={Clustering of Loop Current patterns based on the satellite-observed sea surface height and self-organizing map}, volume={6}, ISSN={["2150-7058"]}, DOI={10.1080/2150704x.2014.998347}, abstractNote={The self-organizing map is used to investigate variations of the Loop Current (LC) in the Gulf of Mexico from 1992 to 2013 based on satellite-observed sea surface height data. It is found that LC variations can be characterized by three spatial patterns: normal, extension and retraction. The corresponding temporal variations confirm that LC eddy shedding generally occurs during the transition from the extension to retraction patterns. On the weekly time scale, the wind stress curl (WSC) in the Caribbean Sea has a major influence on LC eddy shedding. The increase of Caribbean WSC from June to November favours more frequent LC eddy shedding during that period. On the interannual time scale, there is also a potential linkage between the frequency of LC eddy shedding and El Niño activities.}, number={1}, journal={REMOTE SENSING LETTERS}, publisher={Informa UK Limited}, author={Zeng, Xiangming and Li, Yizhen and He, Ruoying and Yin, Yuqi}, year={2015}, pages={11–19} } @article{zeng_li_he_2015, title={Predictability of the Loop Current Variation and Eddy Shedding Process in the Gulf of Mexico Using an Artificial Neural Network Approach}, volume={32}, ISSN={["1520-0426"]}, DOI={10.1175/jtech-d-14-00176.1}, abstractNote={AbstractA novel approach based on an artificial neural network was used to forecast sea surface height (SSH) in the Gulf of Mexico (GoM) in order to predict Loop Current variation and its eddy shedding process. The empirical orthogonal function analysis method was applied to decompose long-term satellite-observed SSH into spatial patterns (EOFs) and time-dependent principal components (PCs). The nonlinear autoregressive network was then developed to predict major PCs of the GoM SSH in the future. The prediction of SSH in the GoM was constructed by multiplying the EOFs and predicted PCs. Model sensitivity experiments were conducted to determine the optimal number of PCs. Validations against independent satellite observations indicate that the neural network–based model can reliably predict Loop Current variations and its eddy shedding process for a 4-week period. In some cases, an accurate forecast for 5–6 weeks is possible.}, number={5}, journal={JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY}, publisher={American Meteorological Society}, author={Zeng, Xiangming and Li, Yizhen and He, Ruoying}, year={2015}, month={May}, pages={1098–1111} } @article{wang_wang_bi_zeng_xiao_2014, title={Seasonal distribution of suspended sediment in the Bohai Sea, China}, volume={90}, ISSN={["1873-6955"]}, DOI={10.1016/j.csr.2014.03.006}, abstractNote={Distribution of suspended sediment in the Bohai Sea and its seasonal variability were investigated based on the datasets obtained from four cruises carried out in different seasons in 2010 and 2012. The results indicate that the spatial distribution of suspended sediment in the Bohai Sea was dominated by the river input and coastal resuspension that depends on the type of local surface sediment and hydrodynamics. The suspended sediment was mostly concentrated in the southern Bohai Sea particularly around the Yellow River Delta in the summer season as impacted by the river plume but confined within a very limited area near the river mouth, whereas in winter–spring seasons sediment concentration became much higher as a result of active coastal resuspension induced by energetic wave actions in the shallow water. High sediment concentration was found in Liaodong Bay in winter–spring seasons when dynamics become strong but decrease significantly in summer seasons. The sediment concentration in the southern Bohai Strait was much higher than that in the northern part, suggesting evident sediment export to the Yellow Sea particularly in the winter–spring seasons. Strong seasonal variability of suspended sediment distribution in the Bohai Sea was consistent with the monsoon activity and associated wave actions and coastal currents that are varying seasonally. The dominance of seasonal monsoon signal and associated wave dynamics make the subaqueous Yellow River delta to be a major sink for the terrestrial sediment in the summer seasons, but transiting to a primary source in winter–spring seasons for sediment redistribution in the Bohai Sea and sediment export to the Yellow Sea. The seasonal patterns of suspended sediment distribution in the Bohai Sea and the dominance of monsoon activities may provide a good reference to understanding the sediment transport in the China Shelf Seas where sediment resuspension and coastal circulation are evidently driven by monsoon.}, journal={CONTINENTAL SHELF RESEARCH}, author={Wang, Houjie and Wang, Aimei and Bi, Naishuang and Zeng, Xiangming and Xiao, Hehui}, year={2014}, month={Nov}, pages={17–32} } @article{yuqi_xiaopei_yizhen_xiangming_2014, title={Seasonal variability of Kuroshio intrusion northeast of Taiwan Island as revealed by self-organizing map}, volume={32}, ISSN={["1993-5005"]}, DOI={10.1007/s00343-015-4017-x}, number={6}, journal={CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY}, author={Yuqi, Yin and Xiaopei, Lin and Yizhen, Li and Xiangming, Zeng}, year={2014}, month={Nov}, pages={1435–1442} }