The Relationship between POC Export Efficiency and Primary Production: Opposite on the Shelf and Basin of the Northern South China Sea

Li, Teng; Bai, Yan; He, Xianqiang; Chen, Xiaoyan; Chen, Chen‐Tung Arthur; Tao, Bangyi; Pan, Delu; Zhang, Xuan

doi:10.3390/su10103634

Cited by 16 publications

(8 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, POC export efficiency (the ratio of EP to OPP) of the euphotic layer was reported to be positively correlated with OPP within typical POC export efficiency models at the global ocean scale (Dunne et al, ; Laws et al, ). However, the POC export efficiency in the basin of NSCS tended to decrease with increasing OPP, suggesting a different regulatory mechanism of POC export in the NSCS (Li et al, ). To date, only a few studies have been conducted on microzooplankton and mesozooplankton grazing in the NSCS (Chen et al, ; Chen et al, ).…”

Section: Discussionmentioning

confidence: 99%

Satellite‐Based Estimation of Particulate Organic Carbon Export in the Northern South China Sea

Bai

et al. 2018

JGR Oceans

Self Cite

View full text Add to dashboard Cite

Knowledge of particulate organic carbon export flux (EP) is the key to understanding the marine biological carbon pump. In this study, a satellite remote sensing algorithm based on the food‐web model established by Siegel et al. (2014; https://doi.org/10.1002/2013GB004743) was used to estimate EP in the northern South China Sea (NSCS), which consists of direct sinking flux of large phytoplankton and associated aggregates by gravity and flux of zooplankton feces by grazing. This is the first time that fine spatiotemporal variation of satellite‐derived EP in the NSCS is unveiled. Compared with the results on 1° spatial scale products, the model results based on the satellite products with 1/3° and 1/12° resolutions showed better consistency with the observations. Validation with in situ EP showed that the model exhibited a good performance in the NSCS basin, but the predicted EP in the shelf regions were smaller compared with measurements. The satellite‐derived annual‐mean EP in the shelf areas was 8.47 and 5.56 mmol C·m−2·d−1 in the NSCS basin, on the 1/3° spatial scale, with relative differences from observations were about −50% and −15% for the shelf and basin, respectively. The flux of feces from zooplankton grazing, especially that from microzooplankton grazing, might account for the major fraction of the EP in the NSCS. Accurate products of ocean net primary production and empirical coefficients in the food web (e.g., export efficiency of zooplankton grazing and specific mortality rate of nongrazing phytoplankton) suitable for the NSCS, are essential for performance improvement of the satellite‐based EP model.

show abstract

Section: Discussionmentioning

confidence: 99%

Satellite‐Based Estimation of Particulate Organic Carbon Export in the Northern South China Sea

Bai

et al. 2018

JGR Oceans

Self Cite

View full text Add to dashboard Cite

show abstract

“…The strong vertical mixing and wind field generated by a typhoon has a major impact on the upper ocean dynamics and ecosystem [58]. Due to typhoons, there is a decrease in sea level, a decrease in sea surface temperature, an increase in phytoplankton blooms and a decrease in primary productivity, which also affect marine fisheries [59][60][61]. Typhoons mainly affect the marine ecological environment through two physical mechanisms: (1) after a typhoon, a cold vortex is formed, causing seawater to upwell and the lower layer of cold nutrient water is transported to the upper layer [62,63]; and (2) the typhoon intensifies the vertical mixing of the upper ocean by a strong wind process [64][65][66][67].…”

Section: Sea Surface Salinity Response To Tropical Cyclonesmentioning

confidence: 99%

Response of the Coastal Ocean to Tropical Cyclones

Wu¹,

Conde²

2020

Current Topics in Tropical Cyclone Research

View full text Add to dashboard Cite

The Northwest Pacific and the South China Sea region are the birthplaces of most monsoon disturbances and tropical cyclones and are an important channel for the generation and transmission of water vapor. The Northwest Pacific plays a major role in regulating interdecadal and long-term changes in climate. China experiences the largest number of typhoon landfalls and the most destructive power affected by typhoons in the world. The hidden dangers of typhoon disasters are accelerating with the acceleration of urbanization, the rapid development of economic construction and global warming. The coastal cities are the most dynamic and affluent areas of China's economic development. They are the strong magnetic field that attracts international capital in China, and are also the most densely populated areas and important port groups in China. Although these regions are highly developed, they are vulnerable to disasters. When typhoons hit, the economic losses and casualties caused by gale, heavy rain and storm surges were particularly serious. This chapter reviews the response of coastal ocean to tropical cyclones, included sea surface temperature, sea surface salinity, storm surge simulation and extreme rainfall under the influence of tropical cyclones.

show abstract

“…The strong vertical mixing and wind field generated by a typhoon has a major impact on the upper ocean dynamics and ecosystem [55]. Due to typhoons, there is a decrease in sea level, a decrease in sea surface temperature, an increase in phytoplankton blooms and a decrease in primary productivity, which also affect marine fisheries [56][57][58]. Typhoons mainly affect the marine ecological environment through two physical mechanisms: (1) after a typhoon, a cold vortex is formed, causing seawater to upwell and the lower layer of cold nutrient water is transported to the upper layer [59,60]; and (2) the typhoon intensifies the vertical mixing of the upper ocean by a strong wind process [61][62][63][64].…”

Section: Sea Surface Salinity Response To Tropical Cyclonesmentioning

confidence: 99%

Current Topics in Tropical Cyclone Research

Lupo¹

2020

View full text Add to dashboard Cite

While many studies examine the synoptic and dynamic features associated with the growth of tropical cyclones or their landfall, relatively few (Fedorova et al.) examine several case studies of weaker storms near the equator that give rise to fog and mist events over Northeast Brazil. These events can have serious consequences for aerospace operations. In these cases, it was found that the tropical cyclones or disturbances do not come ashore directly, but it is the indirect influence caused by secondary circulations that lead to the formation of fog and mist events. Also, tropical cyclones such as tropical storms and hurricanes generally emerge from tropical disturbances. Over the Atlantic region these disturbances occur with some regularity emanating from formation regions over Africa (African Easterly Waves -AEWs). Reyes and Shen use this quasi-periodicity to develop algorithms to forecast their occurrence using recurrence theory. These results show some promise in extending the lead time for the forecasting of the tropical cyclone "seeds".Other parts of the world, such as the countries of the Northwest Pacific, are also vulnerable to the occurrence of tropical cyclones. A review by Wu and Conde summarizes the previous research done by the authors and collaborators involving the response of coastal ocean dynamics to tropical cyclone occurrence for variables such as sea surface temperature, sea surface salinity, storm surge simulation, and extreme rainfall. They also propose three research paths for future work that involves observational, dynamic, and model studies in order to improve the understanding of the future threat these regions may face due to tropical cyclones.Satellite techniques are often used to determine the intensity of tropical cyclones using the area of cold cloud tops near the center as well as storm feature shapes as determined using visible or infrared imagery (the Dvorak technique). The work of Yurchak proposes using the character of the spiral rainbands as derived from not only satellite techniques, but augmenting this with ground and aircraft-based RADAR to determine the shape of the spiral bands. This information can be used to develop a hyperbolic-logarithmic streamline equation that ultimately relates the model to maximum wind speed.Lastly, it was a pleasure to edit this book and work with all the authors and the staff of IntechOpen. The process was rather smooth. I am grateful to all the authors for their contributions, and the staff at IntechOpen for their hard work in keeping the process moving along. This is the third such project that I've been involved with and the experience has been good each time. Finally, it is my hope that the tropical meteorology community finds this book to be a useful resource for augmenting their own studies as well as providing a basis for future research.

show abstract

The Relationship between POC Export Efficiency and Primary Production: Opposite on the Shelf and Basin of the Northern South China Sea

Cited by 16 publications

References 72 publications

Satellite‐Based Estimation of Particulate Organic Carbon Export in the Northern South China Sea

Satellite‐Based Estimation of Particulate Organic Carbon Export in the Northern South China Sea

Response of the Coastal Ocean to Tropical Cyclones

Current Topics in Tropical Cyclone Research

Contact Info

Product

Resources

About