Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Nozomi Sugiura"'
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
An observation operator in data assimilation was formalized based on the signatures extracted from the integral quantities contained within observed vertical profiles in the ocean. A four-dimensional variational global ocean data assimilation system,
Externí odkaz:
https://doaj.org/article/b7160716af4d43b09f7d92a4edb21774
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
Abstract Energy dissipation rates are an important characteristic of turbulence; however, their magnitude in observational profiles can be incorrectly determined owing to their irregular appearance during vertical evolution. By analysing the data obt
Externí odkaz:
https://doaj.org/article/9371ccbeddb041df99a10dbf8bb6a2d9
Machine Learning Technique Using the Signature Method for Automated Quality Control of Argo Profiles
Autor:
Nozomi Sugiura, Shigeki Hosoda
Publikováno v:
Earth and Space Science, Vol 7, Iss 9, Pp n/a-n/a (2020)
Abstract A profile from the Argo ocean observation array is a sequence of three‐dimensional vectors composed of pressure, salinity, and temperature, appearing as a continuous curve in three‐dimensional space. The shape of this curve is faithfully
Externí odkaz:
https://doaj.org/article/07c6b5abbc0e49ab8e271e9fd9473641
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
We investigated the impact of assimilating a mapped dataset of subsurface ocean currents into an ocean state estimation. We carried out two global ocean state estimations from 2000 to 2007 using the K7 four-dimensional variational data synthesis syst
Externí odkaz:
https://doaj.org/article/97d1c96421c94519ae0d4e6359a61ed9
Publikováno v:
Journal of Oceanography. 77:367-382
An optimization experiment was conducted to reproduce the climatological distribution of water properties with an ocean general circulation model in which interior vertical mixing below the surface mixed layer is represented by tidally induced near-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b91edb438c74578c210edce61c466e0
https://doi.org/10.1007/s10872-021-00591-9
https://doi.org/10.1007/s10872-021-00591-9
Publikováno v:
Ocean Modelling. 179:102111
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afee586d810ef888228dc2a48333443e
https://doi.org/10.1016/j.ocemod.2022.102111
https://doi.org/10.1016/j.ocemod.2022.102111
Publikováno v:
Journal of Geophysical Research: Oceans. 125
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::329e9e845ed84b9352a866761c41fcd2
https://doi.org/10.1029/2019jc015513
https://doi.org/10.1029/2019jc015513
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
Energy dissipation rates are an important characteristic of turbulence; however, their magnitude in observational profiles can be incorrectly determined owing to their irregular appearance during vertical evolution. By analysing the data obtained fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::973683fb722e9707c382080514e454e0
Autor:
Nozomi Sugiura, Yoichi Ishikawa, Toshiyuki Awaji, Masao Fukasawa, Hiromichi Igarashi, Takaki Hatayama, Katsuro Katsumata, Shinya Kouketsu, Yuji Sasaki, Shuhei Masuda, Yoshimi Kawai, Takahiro Toyoda, Hiroshi Uchida, Takeshi Kawano, Toshimasa Doi
Publikováno v:
Geophysical Research Letters. 42:9916-9924
An improved vertical diffusivity scheme is introduced into an ocean general circulation model to better reproduce the observed features of water property distribution inherent in the deep Pacific Ocean structure. The scheme incorporates (a) a horizon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11350458d5043dbdbf0fcc3d27401956
https://doi.org/10.1002/2015gl065940
https://doi.org/10.1002/2015gl065940