Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Motoki Nagura"'
Publikováno v:
Geoscience Letters, Vol 8, Iss 1, Pp 1-7 (2021)
Abstract The termination of Indian Ocean Dipole (IOD) events is examined in terms of equatorial wave dynamics. In situ and satellite observations combined with an output from a linear wave model are used in this study. Our emphasis is on the 1997 IOD
Externí odkaz:
https://doaj.org/article/b05d5d545e0b49319f2554dc3323515e
Publikováno v:
Progress in Earth and Planetary Science, Vol 8, Iss 1, Pp 1-19 (2021)
Abstract A recently developed energy flux diagnosis scheme, which incorporates a smooth connection between the tropical and subtropical zones, is used in the present study to investigate vertically propagating waves in the tropical Indian Ocean (IO)
Externí odkaz:
https://doaj.org/article/d967809c0f3f4591b20c26bc1f6aaba5
Autor:
Iskhaq Iskandar, Wijaya Mardiansyah, Dedi Setiabudidaya, Pradanto Poerwono, Netty Kurniawati, Fadli Saymsuddin, Motoki Nagura
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 25, Iss 6, p 847 (2014)
The role of equatorial oceanic waves on the evolution of the 2007 positive Indian Ocean Dipole (pIOD) event was evaluated using available observations and output from a quasi-analytical linear wave model. It was found that the 2007 pIOD event was a w
Externí odkaz:
https://doaj.org/article/088406cead194428b9c7b224db76ab11
Autor:
Motoki Nagura, Satoshi Osafune
Publikováno v:
Journal of Physical Oceanography. 52:1749-1773
Many previous studies of midlatitude Rossby waves have examined satellite altimetry data, which reflect variability near the surface above the pycnocline. Argo float observations provide hydrographic data in the upper 2000 m, which likely monitor sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e67dbfcfad860a671bcab9594011359
https://doi.org/10.1175/jpo-d-21-0290.1
https://doi.org/10.1175/jpo-d-21-0290.1
Autor:
Motoki Nagura, Michael J. McPhaden
Publikováno v:
Journal of Physical Oceanography.
Frequency spectra of in-situ meridional velocity measurements in the central equatorial Indian Ocean show two distinct peaks at “quasi-biweekly” periods of 10-30 days. One is near the surface at frequencies of 0.06-0.1 cpd (periods of 10-17 days)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a92a63f88cc9623fdbfd61f817bc7431
https://doi.org/10.1175/jpo-d-22-0222.1
https://doi.org/10.1175/jpo-d-22-0222.1
Publikováno v:
Geoscience Letters, Vol 8, Iss 1, Pp 1-7 (2021)
The termination of Indian Ocean Dipole (IOD) events is examined in terms of equatorial wave dynamics. In situ and satellite observations combined with an output from a linear wave model are used in this study. Our emphasis is on the 1997 IOD event bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce6507d43db8feb3f27618becb8350bc
https://doaj.org/article/b05d5d545e0b49319f2554dc3323515e
https://doaj.org/article/b05d5d545e0b49319f2554dc3323515e
Autor:
Ke Huang, Dongxiao Wang, Gengxin Chen, Motoki Nagura, Weiqing Han, Michael J. McPhaden, Ming Feng, Ju Chen, Ying Wu, Xiaolin Zhang, Yuanlong Li, Qiang Xie, Weiqiang Wang, Feng Zhou
Publikováno v:
Geophysical Research Letters. 49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b928d225c28432052fb4edb15faec6a
https://doi.org/10.1029/2022gl100168
https://doi.org/10.1029/2022gl100168
Autor:
Motoki Nagura, Michael J. McPhaden
Publikováno v:
Journal of Physical Oceanography. 51:1595-1609
This study examines interannual variability in sea surface height (SSH) at southern midlatitudes of the Indian Ocean (10°–35°S). Our focus is on the relative role of local wind forcing and remote forcing from the equatorial Pacific Ocean. We use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71ed61543d66522c922f9cb3c85e4717
https://doi.org/10.1175/jpo-d-20-0279.1
https://doi.org/10.1175/jpo-d-20-0279.1
Autor:
Yoshiki Fukutomi, Yuki Kanno, Goro Yamanaka, Motoki Nagura, L. Shogo Urakawa, Tomomichi Ogata, Takahiro Toyoda, Kei Sakamoto, Hidenori Aiki, Hideyuki Nakano
Publikováno v:
Journal of Climate. 34:4023-4042
A method is introduced for diagnosing the time evolution of wave energy associated with ENSO from an ocean reanalysis. In the diagnosis, time changes of kinetic and available potential energy are mainly represented by energy inputs caused by surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4258643fd9b4b9451abd9e78a72b69ac
https://doi.org/10.1175/jcli-d-20-0704.1
https://doi.org/10.1175/jcli-d-20-0704.1
Autor:
Motoki Nagura
Publikováno v:
Journal of Climate
This study investigates spreading and generation of spiciness anomalies of the Subantarctic Mode Water (SAMW) located on 26.6 to 26.8 σθ in the south Indian Ocean, using in situ hydrographic observations, satellite measurements, reanalysis datasets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ef86934f7cd2e2e4c67d078d3528590
https://doi.org/10.1175/jcli-d-20-0482.1
https://doi.org/10.1175/jcli-d-20-0482.1