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  • Fisheries
  • Humans
  • Magnetism
  • Mice
  • Sea level
  • Instituto de Oceanología  (4)
  • American Geophysical Union  (3)
  • 2010-2014  (7)
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Keywords
Publisher
Years
Year
  • 1
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    Caso de Estudio No. 2: Estado de la pesquería de la langosta espinosa (Panulirus argus) y su relación con factores ambientales y antrópicos en Cuba. (2011)
    Instituto de Oceanología | Cuba
    Details
    Publication Date: 2021-05-19
    Description: Las capturas de langosta espinosa Panulirus argus (Latreille, 1804) en Cuba alcanzaron sus mayores volúmenes en la década de 1980 con un promedio anual de 11565 ton. En la década de 1990, la captura descendió a un promedio de 9327 ton, lo cual se ha visto agudizado entre 2000 y 2007 con un promedio de 6262 ton y una mayor variabilidad de las capturas, a pesar de un perfeccionamiento del sistema de manejo pesquero dado por: la disminución del esfuerzo pesquero y de la tasa de mortalidad por pesca desde 1999, el aumento del período de veda desde 2001 y el incremento gradual de la talla mínima legal de captura a partir de 2004. Los análisis más recientes sobre el estado de esta pesquería fueron presentados en el Quinto Taller Regional sobre la Evaluación y la Ordenación de la Langosta Común del Caribe en septiembre 2006 (Puga et al, 2006; FAO, 2007), donde se reconoció por la comunidad científica especializada que la pesquería de langosta cubana se encontraba bien manejada y plenamente explotada (no sobre- explotada) y se concluyó que además de la mortalidad por pesca, otros factores ajenos al sector pesquero estaban produciendo afectaciones en la abundancia del recurso, al causar daños al hábitat 1 en zonas de cría, influyendo negativamente por esta vía sobre el reclutamiento y la producción de langostas. Entre estos aspectos para Cuba se señalaron: la mayor frecuencia e intensidad de huracanes durante el último decenio, el desarrollo de las zonas costeras, la construcción de presas en las cuencas de captación de los ríos y de carreteras en el Archipiélago Sabana-Camagüey comunicando la isla principal con los cayos y los cayos entre si (pedraplenes).
    Description: Published
    Keywords: Fisheries ; Lobster fisheries ; Fisheries ; Environment management ; Recruitment ; Coastal zone management
    Repository Name: AquaDocs
    Type: Book Section
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  • 2
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    Some Considerations on the Variability of Sea Level Synoptic Component in the Gulf of Batabanó. (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: Abstract: An analysis of sea level synoptic variations in the Gulf of Batabanó is carried out starting from data of direct measurements. Spectral analysis is applied. It is corroborated with new elements the prevalence of meteorological variations in part of the southwestern shelf, and the spectral structure of this shelf is characterized. The influence of meteorological factors is evaluated. It is demonstrated the influence exerted by the southern component of the wind on this variations. There are signs of the possible influence of ENSO on sea level monthly variability at La Coloma; and there is a great similarity between this variability and that of Siboney.
    Description: Published
    Description: Synoptic Variations
    Keywords: Sea level ; Spectral analysis ; Sea level ; Storm surges ; Spectral analysis
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 3
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    Ondas atrapadas a la costa en el sector NW de Cuba. (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: Series cronológicas de nivel del mar obtenidas durante el año 2004 en tres estaciones mareaográficas ubicadas en la costa noroccidental de Cuba muestran en las frecuencias bajas, ω 〈 0.2 ciclos por día (cpd), una propagación hacia el E con velocidad de fase de una onda baroclínica de Kelvin (2-3 m/s). La coherencia entre las localidades alcanza sus valores máximos en la banda de los 0.1-0.2 cpd. Estos resultados permiten verificar la existencia de ondas atrapadas a la costa en la zona de estudio.
    Description: Time series of sea level during 2004, from three tide gauges located in the NW coast of Cuba, show that in low frequencies, ω 〈 0.2 cycles per day (cpd), fluctuations propagate eastward with the phase speed of baroclínic Kelvin wave (2-3 m/s). The alongshore coherence reaches its maximum values in the frequency band of 0.1-0.2 cpd. These results allow verifying the existence of coastal-trapped waves in the study zone.
    Description: Published
    Description: nivel del mar, ondas atrapadas a la costa, coastal-trapped waves
    Keywords: Sea level ; Sea level
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 4
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    Respuesta del Nivel del Mar al Forzamiento Atmosférico en las Costasdel Golfo de México. (2010)
    Instituto de Oceanología
    Details
    Publication Date: 2021-05-19
    Description: The subinertial response of sea level to meteorological forcing in the Gulf of Mexico is examined using observations of sea level, atmospheric pressure and surface wind covering the period 1985-1986. Spectral analysis and multiple regression in the frequency domain methods are employed for data processing. The analysis shows that the atmospheric pressure is the principal forcing agent. The response of sea level to atmospheric pressure is found to be non isostatic and dependent on frequency and geographical location; the response is overisostatic in the north zone and underisostatic in the south zone of the Gulf, approaching isostasy only at stations located in the Cuban coast. The importance of local and remote wind in sea level variability are determined; it is found an effective zone of sea level forcing due to the wind on the West Florida Shelf.
    Description: Published
    Description: meteorological forcing.
    Keywords: Sea level ; Sea level ; Sea level changes
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 5
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    Minimum distribution of subsea ice-bearing permafrost on the U.S. Beaufort Sea continental shelf (2012)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: This paper is not subject to U.S. copyright. The definitive version was published in Geophysical Research Letters 39 (2012): L15501, doi:10.1029/2012GL052222.
    Description: Starting in Late Pleistocene time (~19 ka), sea level rise inundated coastal zones worldwide. On some parts of the present-day circum-Arctic continental shelf, this led to flooding and thawing of formerly subaerial permafrost and probable dissociation of associated gas hydrates. Relict permafrost has never been systematically mapped along the 700-km-long U.S. Beaufort Sea continental shelf and is often assumed to extend to ~120 m water depth, the approximate amount of sea level rise since the Late Pleistocene. Here, 5,000 km of multichannel seismic (MCS) data acquired between 1977 and 1992 were examined for high-velocity (〉2.3 km s−1) refractions consistent with ice-bearing, coarse-grained sediments. Permafrost refractions were identified along 〈5% of the tracklines at depths of ~5 to 470 m below the seafloor. The resulting map reveals the minimum extent of subsea ice-bearing permafrost, which does not extend seaward of 30 km offshore or beyond the 20 m isobath.
    Description: This research was sponsored by DOE-USGS Interagency Agreement DE-FE0002911. L.B. was supported by a DOE NETL/NRC Methane Hydrate Fellowship under DE-FC26-05NT42248.
    Keywords: Beaufort Sea ; Climate change ; Methane hydrates ; Refraction ; Sea level ; Subsea permafrost
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 6
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    Marine isotope stage 3 sea level fluctuations : data synthesis and new outlook (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Reviews of Geophysics 46 (2008): RG4003, doi:10.1029/2007RG000226.
    Description: To develop a better understanding of the abrupt Dansgaard-Oeschger mode of climate change, it is essential that we establish whether the ice sheets are actively involved, as trigger or amplifier, or whether they merely respond in a passive manner. This requires careful assessment of the fundamental issues of magnitude and phasing of global ice volume fluctuations within marine isotope stage 3 (MIS 3), which to date remain enigmatic. We review recent advances in observational studies pertaining to these key issues and discuss the implications for modeling studies. Our aim is to construct a robust stratigraphic framework for the MIS 3 period regarding sea level variability, using the most up-to-date arguments available by combining insights from both modeling and observational approaches.
    Description: Mark Siddall is supported by a Lamont-Doherty research fellowship. This paper contributes to UK Natural Environment Research Council projects NE/C003152/1, NER/T/S/2002/00453, and NE/ D001773/1. William G. Thompson is supported by grants from the National Science Foundation (OCE-0602383) and the Ocean and Climate Change Institute of Woods Hole Oceanographic Institution. Claire Waelbroeck was supported by EC grant EVK-2000- 00089, by the CNRS, CEA, and IPEV, as well as the IMAGES program.
    Keywords: Sea level ; MIS 3 ; Seesaw ; Dansgaard-Oeschger
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 7
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    A box model test of the freshwater forcing hypothesis of abrupt climate change and the physics governing ocean stability (2011)
    American Geophysical Union
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2010. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 25 (2010): PA4222, doi:10.1029/2010PA001936.
    Description: Observations and an ocean box model are combined in order to test the adequacy of the freshwater forcing hypothesis to explain abrupt climate change given the uncertainties in the parameterization of vertical buoyancy transport in the ocean. The combination is carried out using Bayesian stochastic inversion, which allows us to infer changes in the mass balance of Northern Hemisphere (NH) ice sheets and in the meridional transports of mass and heat in the Atlantic Ocean that would be required to explain Dansgaard-Oeschger Interstadials (DOIs) from 30 to 39 kyr B.P. The mean sea level changes implied by changes in NH ice sheet mass balance agree in amplitude and timing with reconstructions from the geologic record, which gives some support to the freshwater forcing hypothesis. The inversion suggests that the duration of the DOIs should be directly related to the growth of land ice. Our results are unaffected by uncertainties in the representation of vertical buoyancy transport in the ocean. However, the solutions are sensitive to assumptions about physical processes at polar latitudes.
    Description: This material is based upon work supported by the National Science Foundation under grant OCE‐0402363 and Department of Energy grant DE‐FG02‐08ER64619.
    Keywords: Inversion ; MOC ; Abrupt ; Sea level ; Coral ; Mixing
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/postscript
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