Vorticity and mixing induced by the barotropic M2 tidal current and zooplankton biomass distribution in the Gulf of California

2011 ◽  
Vol 66 (2) ◽  
pp. 143-153 ◽  
Author(s):  
David Alberto Salas-de-León ◽  
Noel Carbajal ◽  
Maria Adela Monreal-Gómez ◽  
Antonio Gil-Zurita
Keyword(s):  
Tidal Current ◽  
Gulf Of California ◽  
Zooplankton Biomass ◽  
Biomass Distribution ◽  
M2 Tidal Current

Estimation of the electric current density in the Gulf of California induced by the M2 tidal current

2021 ◽  
Vol 214 ◽  
pp. 104335
Author(s):  
Rosalinda Monreal-Jiménez ◽  
David Alberto Salas-de-León ◽  
María Adela Monreal-Gómez ◽  
Noel Carbajal ◽  
Víctor Kevin Contreras-Tereza
Keyword(s):  
Electric Current ◽  
Current Density ◽  
Tidal Current ◽  
Gulf Of California ◽  
Electric Current Density ◽  
M2 Tidal Current

scholarly journals MAREDAT: towards a World Ocean Atlas of MARine Ecosystem DATa

2012 ◽  
Vol 5 (2) ◽  
pp. 1077-1106 ◽  
Author(s):  
E. T. Buitenhuis ◽  
M. Vogt ◽  
R. Moriarty ◽  
N. Bednaršek ◽  
S. C. Doney ◽  
...  
Keyword(s):  
Marine Ecosystem ◽  
World Ocean ◽  
Zooplankton Biomass ◽  
Global Ocean ◽  
Special Issue ◽  
Biomass Distribution ◽  
Phytoplankton Pigment ◽  
Autotrophic Biomass ◽  
Ocean Ecosystem ◽  
World Ocean Atlas

Abstract. We present a summary of biomass data for 11 Plankton Functional Types (PFTs) plus phytoplankton pigment data, compiled as part of the MARine Ecosystem biomass DATa (MAREDAT) initiative. The goal of the MAREDAT initiative is to provide global gridded data products with coverage of all biological components of the global ocean ecosystem. This special issue is the first step towards achieving this. The PFTs presented here include picophytoplankton, diazotrophs, coccolithophores, Phaeocystis, diatoms, picoheterotrophs, microzooplankton, foraminifers, mesozooplankton, pteropods and macrozooplankton. All variables have been gridded onto a World Ocean Atlas (WOA) grid (1° × 1° × 33 vertical levels × monthly climatologies). The data show that (1) the global total heterotrophic biomass (2.0–6.4 Pg C) is at least as high as the total autotrophic biomass (0.5–2.6 Pg C excluding nanophytoplankton and autotrophic dinoflagellates), (2) the biomass of zooplankton calcifiers (0.9–2.3 Pg C) is substantially higher than that of coccolithophores (0.01–0.14 Pg C), (3) patchiness of biomass distribution increases with organism size, and (4) although zooplankton biomass measurements below 200 m are rare, the limited measurements available suggest that Bacteria and Archaea are not the only heterotrophs in the deep sea. More data will be needed to characterize ocean ecosystem functioning and associated biogeochemistry in the Southern Hemisphere and below 200 m. Microzooplankton database: doi:10.1594/PANGAEA.779970.

Vertical structure of the M2 tidal current in the Yellow Sea

2011 ◽  
Vol 46 (2) ◽  
pp. 73-84 ◽  
Author(s):  
Seok Lee ◽  
Heung-Jae Lie ◽  
Cheol-Ho Cho ◽  
Sok Kuh Kang ◽  
William J. Teague ◽  
...  
Keyword(s):  
Yellow Sea ◽  
Tidal Current ◽  
Vertical Structure ◽  
The Yellow Sea ◽  
M2 Tidal Current

scholarly journals In-Stream Energy by Tidal and Wind-Driven Currents: An Analysis for the Gulf of California

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1095
Author(s):  
Vanesa Magar ◽  
Victor M. Godínez ◽  
Markus S. Gross ◽  
Manuel López-Mariscal ◽  
Anahí Bermúdez-Romero ◽  
...  
Keyword(s):  
Tidal Current ◽  
Gulf Of California ◽  
Energy Production ◽  
Three Dimensional ◽  
Energy Resources ◽  
Sediment Type ◽  
Tidal Power ◽  
Tidal Stream ◽  
Wind Driven Currents ◽  
Hycom Model

We analyzed the peak spring tidal current speeds, annual mean tidal power densities ( T P D ) and annual energy production ( A E P ) obtained from experiment 06.1, referred as the “HYCOM model” throughout, of the three dimensional (3D), global model HYCOM in an area covering the Baja California Pacific and the Gulf of California. The HYCOM model is forced with astronomical tides and surface winds alone, and therefore is particularly suitable to assess the tidal current and wind-driven current contribution to in-stream energy resources. We find two areas within the Gulf of California, one in the Great Island Region and one in the Upper Gulf of California, where peak spring tidal flows reach speeds of 1.1 m per second. Second to fifth-generation tidal stream devices would be suitable for deployment in these two areas, which are very similar in terms of tidal in-stream energy resources. However, they are also very different in terms of sediment type and range in water depth, posing different challenges for in-stream technologies. The highest mean T P D value when excluding TPDs equal or less than 50 W m−2 (corresponding to the minimum velocity threshold for energy production) is of 172.8 W m−2, and is found near the town of San Felipe, at (lat lon) = (31.006–114.64); here energy would be produced during 39.00% of the time. Finally, wind-driven currents contribute very little to the mean T P D and the total A E P . Therefore, the device, the grid, and any energy storage plans need to take into account the periodic tidal current fluctuations, for optimal exploitation of the resources.

Spatial and Temporal Distribution of the Zooplankton Biomass in Sfântu Gheorghe Branch (The Danube Delta, Romania) in Relation to Environmental Factors

2013 ◽  
Vol 56 (1) ◽  
pp. 109-124 ◽  
Author(s):  
Larisa Florescu ◽  
Laura Parpală ◽  
Alina Dumitrache ◽  
Mirela Moldoveanu
Keyword(s):  
Anthropogenic Impact ◽  
Temporal Distribution ◽  
River System ◽  
Distribution Patterns ◽  
Zooplankton Biomass ◽  
Danube Delta ◽  
Biomass Distribution ◽  
Hydrological System ◽  
Changes Over Time ◽  
Over Time

Abstract Sfântu Gheorghe fluvial branch belongs to the macroregional hydrological system of the Danube Delta. In order to improve the navigation on the river branches, between 1983 and 1989 various technical works have been initiated, which later proved to be one of the most aggressive factors leading to changes over time in the Danube Delta. The influence of anthropogenic impact on the zooplankton biomass distribution patterns in Sfântu Gheorghe was investigated in 2008 - 2010 interval. From this perspective, the aim of this paper was to emphasize the structure and distribution of zooplankton in the new conditions of the river system. Seasonal sampling shows that Copepoda and Cladocera were the dominant groups while the protozoans (Ciliata and Testacea) presented the smallest values of biomass and also emphasized distinct differences among the three sampling periods: summer, spring and autumn.

scholarly journals In-Stream Energy by Tidal and Wind-Driven Currents: An Analysis for the Gulf of California

2020 ◽  
Author(s):  
Vanesa Magar ◽  
Victor M. Godínez ◽  
Markus S. Gross ◽  
Manuel López-Mariscal ◽  
Anahí Bermúdez-Romero ◽  
...  
Keyword(s):  
Tidal Current ◽  
Gulf Of California ◽  
Energy Production ◽  
Three Dimensional ◽  
Energy Resources ◽  
Sediment Type ◽  
Tidal Power ◽  
Tidal Stream ◽  
Wind Driven Currents ◽  
Hycom Model

We analyzed the peak spring tidal current speeds, annual mean tidal power densities (TPD) and annual energy production (AEP) obtained from experiment 06.1, referred as the "HYCOM model" throughout, of the three dimensional (3D), global model HYCOM in an area covering the Baja California Pacific and the Gulf of California. The HYCOM model is forced with astronomical tides and surface winds alone, and therefore is particularly suitable to assess the tidal current and wind-driven current contribution to in-stream energy resources. We find two areas within the Gulf of California, one in the Great Island Region and one in the Upper Gulf of California, where peak spring tidal flows reach speeds of 1.1 meters per second. Second to fifth-generation tidal stream devices would be suitable for deployment in these two areas, which are very similar in terms of tidal in-stream energy resources. However, they are also very different in terms of sediment type and range in water depth, posing different challenges for in-stream technologies. The highest mean TPD value when excluding TPDs equal or less than 50 W/m2 (corresponding to the minimum velocity threshold for energy production) is of 172.8 W/m2, and is found near the town of San Felipe, at (lat lon) = (31.006 -114.64); here energy would be produced during 39.00% of the time. Finally, wind-driven currents contribute very little to the mean TPD and the total AEP. Therefore, the device, the grid, and any energy storage plans need to take into account the periodic tidal current fluctuations, for optimal exploitation of the resources.

scholarly journals In-Stream Energy by Tidal and Wind-Driven Currents: An Analysis for the Gulf of California

2020 ◽  
Author(s):  
Vanesa Magar ◽  
Victor M. Godínez ◽  
Markus S. Gross ◽  
Manuel López-Mariscal ◽  
Anahí Bermúdez-Romero ◽  
...  
Keyword(s):  
Tidal Current ◽  
Gulf Of California ◽  
Energy Production ◽  
Three Dimensional ◽  
Energy Resources ◽  
Sediment Type ◽  
Tidal Power ◽  
Tidal Stream ◽  
Wind Driven Currents ◽  
Hycom Model

We analyzed the peak spring tidal current speeds, annual mean tidal power densities (TPD) and annual energy production (AEP) obtained from experiment 06.1, referred as the "HYCOM model" throughout, of the three dimensional (3D), global model HYCOM in an area covering the Baja California Pacific and the Gulf of California. The HYCOM model is forced with astronomical tides and surface winds alone, and therefore is particularly suitable to assess the tidal current and wind-driven current contribution to in-stream energy resources. We find two areas within the Gulf of California, one in the Great Island Region and one in the Upper Gulf of California, where peak spring tidal flows reach speeds of 1.1 meters per second. Second to fifth-generation tidal stream devices would be suitable for deployment in these two areas, which are very similar in terms of tidal in-stream energy resources. However, they are also very different in terms of sediment type and range in water depth, posing different challenges for in-stream technologies. The highest mean TPD value when excluding TPDs equal or less than 50 W/m2 (corresponding to the minimum velocity threshold for energy production) is of 172.8 W/m2, and is found near the town of San Felipe, at (lat lon) = (31.006 -114.64); here energy would be produced during 39.00% of the time. Finally, wind-driven currents contribute very little to the mean TPD and the total AEP. Therefore, the device, the grid, and any energy storage plans need to take into account the periodic tidal current fluctuations, for optimal exploitation of the resources.

Sign in / Sign up

Export Citation Format

Share Document