Kuroshio Current最新文献_第2页

Contribution of Kuroshio Recirculation to Nutrient Transport Along the Kuroshio South of Japan 黑潮再循环对日本南部黑潮沿岸养分输送的贡献

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH7

Xinyu Guo, Yingying Hu, Y. Sasai

{"title":"Contribution of Kuroshio Recirculation to Nutrient Transport Along the Kuroshio South of Japan","authors":"Xinyu Guo, Yingying Hu, Y. Sasai","doi":"10.1002/9781119428428.CH7","DOIUrl":"https://doi.org/10.1002/9781119428428.CH7","url":null,"abstract":"As the Kuroshio flows from low latitude to midlatitude regions, it carries not only heat but also many dissolved materials. Nutrients are one of the important materials with horizontal nitrate transport reported to be on the order of 100–200 kmol s−1 in the East China Sea (Chen et al., 1994, 1995, 2017; Guo et al., 2012, 2013) and, downstream, higher nitrate transport is reported to be on the order of 800–1300 kmol s−1 in the Kuroshio south of Japan. The joining of the Ryukyu Current into the Kuroshio south of Japan is partly responsible for this increase because the Ryukyu Current carries nitrate with horizontal transport on the order of 300 kmol s−1 (Guo et al., 2013). Another process is the joining of the Shikoku Basin local recirculation (Nagano et al., 2013) (hereafter called the Kuroshio recirculation) into the Kuroshio, which is estimated to make a large contribution to the downstream increase of horizontal nitrate transport within the Kuroshio between the two sections across the Kuroshio south of Japan. The question is whether intensification of the downstream nitrate transport within the Kuroshio by the Kuroshio recirculation is applicable over the entire area of the Kuroshio south of Japan. In the case that the Kuroshio recirculation joins into the Kuroshio main stream, it acts to increase the horizontal nitrate transport within the Kuroshio. However, in the case that the Kuroshio recirculation departs from the Kuroshio main stream, such intensification is unlikely from the viewpoint of water budget. Currently available estimations by Guo et al. (2013) are based on observations limited to the area west of 137°E. To clarify the contribution of the Kuroshio recirculation on downstream nitrate transport within the Kuroshio main stream, we use the results of a biogeochemical model that covers the entire area of the Kuroshio south AbstrAct","PeriodicalId":132072,"journal":{"name":"Kuroshio Current","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115893925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Reproduction and Early Life History of Mesopelagic Fishes in the Kuroshio Region 黑潮地区中远洋鱼类的繁殖与早期生活史

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH17

C. Sassa

引用次数: 15

Diverse Trophic Pathways from Zooplankton to Larval and Juvenile Fishes in the Kuroshio Ecosystem 黑潮生态系统中从浮游动物到幼鱼的不同营养途径

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH15

Y. Okazaki, H. Miyamoto, Koji Suzuki, H. Saito, K. Hidaka, T. Ichikawa

引用次数: 13

Impact of Ocean Physics on Marine Ecosystems in the Kuroshio and Kuroshio Extension Regions 黑潮及其延伸区海洋物理对海洋生态系统的影响

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH11

Y. Sasai, M. Honda, E. Siswanto, S. Kato, K. Uehara, H. Sasaki, M. Nonaka

引用次数: 6

The Gulf Nutrient Stream 墨西哥湾营养流

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH3

J. Pelegrí, I. Vallès‐Casanova, Dorleta Orúe‐Echevarría

引用次数: 3

On the Role of the Gulf Stream in the Changing Atlantic Nutrient Circulation During the 21st Century 海湾流在21世纪大西洋养分环流变化中的作用

Kuroshio Current Pub Date : 2019-05-28 DOI: 10.1002/9781119428428.CH4

D. Whitt

{"title":"On the Role of the Gulf Stream in the Changing Atlantic Nutrient Circulation During the 21st Century","authors":"D. Whitt","doi":"10.1002/9781119428428.CH4","DOIUrl":"https://doi.org/10.1002/9781119428428.CH4","url":null,"abstract":"The Gulf Stream is part of the upper limb of the Atlantic meridional overturning circulation (AMOC) and the western boundary current of the North Atlantic sub tropical gyre. The Gulf Stream is also a nutrient stream. It transports macronutrients (nitrate, phosphate, silicate) necessary for marine phytoplankton growth along the eastern continental margin of the United States from the Straits of Florida to Cape Hatteras at globally significant rates. At Cape Hatteras, the Gulf Stream separates from the coast and carries its nutrients to the northeast off the continental slope and into deep water. There, waters of recent tropical, subtropical and subpolar origins con verge and both the volume and nutrient transport increase in a great junction of the global ocean circulation. Further east, near the Grand Banks of Newfoundland, the waters and nutrients of the Gulf Stream diverge again into the subtropical and subpolar gyres. As nutrients and water move northward, they rise along sloping isopycnals and are eventually advected into the surface mixed layer or entrained by seasonal mixed‐layer deepening. This upwards nutrient flux is compensated for by downwards nutrient fluxes associated with physical and biogeochemical processes. A significant fraction of the inorganic nutrient entering the mixed layer is trans formed directly to denser North Atlantic Deep Water and sinks as the incoming water loses heat to the atmosphere. However, another significant fraction of the inor ganic nutrient entering the mixed layer is converted to organic form by phytoplankton. A fraction of this organic nutrient sinks via particles to denser water, where it is remineralized, and the other fraction of the organic nutrient (i.e., the nonsinking dissolved part) is transformed On the Role of the Gulf Stream in the Changing Atlantic Nutrient Circulation During the 21st Century","PeriodicalId":132072,"journal":{"name":"Kuroshio Current","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134305266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Multiscale Routes to Supply Nutrients Through the Kuroshio Nutrient Stream 通过黑潮营养流提供养分的多尺度路线

Kuroshio Current Pub Date : 2019-04-10 DOI: 10.1002/9781119428428.CH6

T. Nagai, S. Clayton, Y. Uchiyama

{"title":"Multiscale Routes to Supply Nutrients Through the Kuroshio Nutrient Stream","authors":"T. Nagai, S. Clayton, Y. Uchiyama","doi":"10.1002/9781119428428.CH6","DOIUrl":"https://doi.org/10.1002/9781119428428.CH6","url":null,"abstract":"In this study, the role of the Kuroshio as a nutrient conduit is discussed using results from eddy-resolving, and nested high-resolution numerical simulations using Regional Oceanic Modeling System (ROMS) coupled with a N 2 PZD 2 ecosystem model, and results from recent in-situ observations. The eddy-resolving simulation can reproduce the elevated nutrient concentrations along the Kuroshio compared to those in ambient waters of the same density, similar to the Gulf Stream. The nested simulations show that nutrients in the upstream Kuroshio can be supplied to euphotic zone by strong diapycnal mixing associated with the Kuroshio over topography. This large nutrient input is consistent with the very strong turbulent mixing observed directory in the upstream Kuroshio regions, where the Kuroshio flows over the seamounts and on the continental slope. The autonomous microstructure float observations also suggest that the large turbulent nitrate diffusive flux occurs in the Izu Ridge, along the Kuroshio. These diapycnal processes may explain why the basin scale nutrient elevation on the density surface along the Kuroshio path is maintained. During winter-spring, in the model downstream Kuroshio Extension, a large nitrate induction of O(10 mmol N m 2 day -1 ), comparable to or greater than wintertime diffusive nitrate flux, occurs through the inclined mixed layer base, which is strongly influenced by the mesoscale structures.","PeriodicalId":132072,"journal":{"name":"Kuroshio Current","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128409869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

The Kuroshio

Kuroshio Current Pub Date : 2019-04-10 DOI: 10.1002/9781119428428.CH1

H. Saito

引用次数: 14

INDEX 指数

Kuroshio Current Pub Date : 2019-04-10 DOI: 10.1002/9781119428428.index

引用次数: 0