Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Tatsuyuki Sagawa"'
Publikováno v:
Remote Sensing, Vol 11, Iss 10, p 1155 (2019)
Shallow water bathymetry is important for nautical navigation to avoid stranding, as well as for the scientific simulation of high tide and high waves in coastal areas. Although many studies have been conducted on satellite derived bathymetry (SDB),
Externí odkaz:
https://doaj.org/article/3c88512d1c0944a4bad897e52d06b623
Autor:
Rodgers Makwinja, Yoshihiko Inagaki, Tatsuyuki Sagawa, John Peter Obubu, Elias Habineza, Wendy Haaziyu
Publikováno v:
Environmental Science and Pollution Research. 30:29755-29772
With excessive nutrient enrichment exacerbated by anthropogenic drivers, many standing water bodies are changing from oligotrophic to mesotrophic, eutrophic, and finally hypertrophic-negatively affecting ecosystem functioning, biodiversity, and human
Autor:
`RODGERS MAKWINJA, Yoshihiko Inagakia, Tatsuyuki Sagawa, John Peter Obubu, Elias Habineza, Wendy Haaziyu
Inland waters' eutrophication is considered a severe global ecological issue. It is associated with rapid phytoplankton and other microorganisms' production. The use of satellite remote sensing has been proposed to determine the primary productivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03d3d134cd0694220c780ebd3232a606
https://doi.org/10.21203/rs.3.rs-1800869/v1
https://doi.org/10.21203/rs.3.rs-1800869/v1
Autor:
John Peter Obubu, Yoshihiko Inagaki, Rodgers Makwinja, Tatsuyuki Sagawa, Rebeca Walugembe Nambi
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Estuarine, Coastal and Shelf Science. 200:81-90
Lyzenga's multispectral bathymetry formula has attracted considerable interest due to its simplicity. However, there has been little discussion of the effect that variation in optical conditions and bottom types—which commonly appears in coral reef
Publikováno v:
IGARSS
Shallow water bathymetry is essential information for coastal science and nautical navigation. In this study, a satellite derived bathymetry (SDB) map, considered suitable for shallow water, was created using random forests (RF) and multi-temporal sa
Autor:
Tatsuyuki Sagawa, Teruhisa Komatsu
Publikováno v:
Ocean Science Journal. 50:335-342
Seagrass and seaweed beds play important roles in coastal marine ecosystems. They are food sources and habitats for many marine organisms, and influence the physical, chemical, and biological environment. They are sensitive to human impacts such as r
Publikováno v:
2016 Techno-Ocean (Techno-Ocean).
Hydrographic organizations and affiliated institutes are developing satellite-derived bathymetry (SDB) technology. To apply SDB to the coastal waters of Japan, we have been developing SDB technology based on the method of Lyzenga, considering the cha
Publikováno v:
Journal of the Marine Biological Association of the United Kingdom. 90:1297-1303
Even if artificial reef studies heavily refer to the distinction between resident and transient species, there is still no widely-shared available method to distinguish objectively these two groups. Such an absence makes any comparison between studie
Autor:
Karim Ben Mustapha, Tatsuyuki Sagawa, Teruhisa Komatsu, N. Kosaka, Sanae Miyazaki, Abdalla Hattour, Etienne Boisnier
Publikováno v:
International Journal of Remote Sensing. 31:3051-3064
Remote sensing is widely used in coastal management. Lyzenga's model has been traditionally used to explain the relationship between bottom surface reflectance and the radiance level measured by satellite. Due to its central assumption, this model la