dor_id: 11119

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590.#.#.d: Los artículos enviados a la revista "Atmósfera", se juzgan por medio de un proceso de revisión por pares

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650.#.4.x: Físico Matemáticas y Ciencias de la Tierra

336.#.#.b: article

336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: https://www.revistascca.unam.mx/atm/index.php/atm/index

351.#.#.b: Atmósfera

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harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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883.#.#.a: Revistas UNAM

590.#.#.a: Coordinación de Difusión Cultural

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850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: https://www.revistascca.unam.mx/atm/index.php/atm/article/view/8432/7902

100.1.#.a: Argote Espinosa, M. L.; Lavín, M. F.; Amador, A.

524.#.#.a: Argote Espinosa, M. L., et al. (1998). Barotropic eulerian residual circulation in the Gulf of California due to the M. Atmósfera; Vol. 11 No. 3, 1998. Recuperado de https://repositorio.unam.mx/contenidos/11119

245.1.0.a: Barotropic eulerian residual circulation in the Gulf of California due to the M

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

264.#.0.c: 1998

264.#.1.c: 2009-10-05

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC 4.0 Internacional, https://creativecommons.org/licenses/by-nc/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico editora@atmosfera.unam.mx

884.#.#.k: https://www.revistascca.unam.mx/atm/index.php/atm/article/view/8432

001.#.#.#: 022.oai:ojs.pkp.sfu.ca:article/8432

041.#.7.h: eng

520.3.#.a: A vertically integrated, non-linear numerical model in finite differences is used to analyze two forcing mechanisms of the mean barotropic circulation in the Gulf of California: topographic rectification due to tidal currents (M2) and wind stress. Under tidal forcing the nonlinearities of the momentum equations induce unorganized strong tidal induced residual currents (ue > 5 cm s-1) in the channels between the islands, and along-isobath anticyclonic circulation in the Northern Gulf, with speeds Ue < 2.5 cm s-1 over the edge of Delfín Basin. These numerical results are in agreement with analytical results, which indicate that the tidal-induced currents are mostly due to the advective terms, and that continuity and the Coriolis term (but regulated by bottom friction) are responsible for the along-isobath flow. The quadratic bottom friction plays a role in generating mean currents only in the very shallow area off the Colorado River Delta. The effect of wind stress was modeled by imposing upon the running M2 model a constant surface stress (r = 0.016 Pa), from the NW for winter conditions and from the SE for summer conditions. The wind-induced circulation was obtained by averaging over a tidal cycle and then subtracting the tidal residuals. The two wind directions produce almost identical circulation patterns, but with opposite directions. For the NW wind stress, the main features of the predicted circulation are: (a) In the Northern Gulf an anticyclonic circulation pattern, with the strongest currents (up to ~ 10 cm s-1) following the bathymetry of the rim of Delfín Basin, Wagner Basin and the mainland coast off Bahía Adair and Bahía San Jorge. There is also a southward flow along the peninsula coast, from the Colorado River to Bahía San Luis Gonzaga. (b) In the Southern Gulf, there is a strong flow (~ 10 to 15 cm s-1) to the SE over the continental shelf along the mainland coast. A somewhat less well-defined return flow (~ 5 cm s-1) from Santa Rosalía to Isla San Lorenzo complete an anticyclonic circulation in the area immediately to the SE of the islands. Some of the predicted features of the wind-driven flow in the Northern Gulf of California are in qualitative agreement with current meter observations, but the model underestimates them which may be attributable to baroclinity, not included in the model.

773.1.#.t: Atmósfera; Vol. 11 No. 3 (1998)

773.1.#.o: https://www.revistascca.unam.mx/atm/index.php/atm/index

046.#.#.j: 2021-10-20 00:00:00.000000

022.#.#.a: ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

310.#.#.a: Trimestral

264.#.1.b: Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM

handle: 00b3286aa90f8626

harvesting_date: 2023-06-20 16:00:00.0

856.#.0.q: application/pdf

245.1.0.b: Barotropic eulerian residual circulation in the Gulf of California due to the M2 tide and wind stress

last_modified: 2023-06-20 16:00:00

license_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode.es

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Artículo

Barotropic eulerian residual circulation in the Gulf of California due to the M

Argote Espinosa, M. L.; Lavín, M. F.; Amador, A.

Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM, publicado en Atmósfera, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Instituto de Ciencias de la Atmósfera y Cambio Climático, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Argote Espinosa, M. L., et al. (1998). Barotropic eulerian residual circulation in the Gulf of California due to the M. Atmósfera; Vol. 11 No. 3, 1998. Recuperado de https://repositorio.unam.mx/contenidos/11119

Descripción del recurso

Autor(es)
Argote Espinosa, M. L.; Lavín, M. F.; Amador, A.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Barotropic eulerian residual circulation in the Gulf of California due to the M
Fecha
2009-10-05
Resumen
A vertically integrated, non-linear numerical model in finite differences is used to analyze two forcing mechanisms of the mean barotropic circulation in the Gulf of California: topographic rectification due to tidal currents (M2) and wind stress. Under tidal forcing the nonlinearities of the momentum equations induce unorganized strong tidal induced residual currents (ue > 5 cm s-1) in the channels between the islands, and along-isobath anticyclonic circulation in the Northern Gulf, with speeds Ue < 2.5 cm s-1 over the edge of Delfín Basin. These numerical results are in agreement with analytical results, which indicate that the tidal-induced currents are mostly due to the advective terms, and that continuity and the Coriolis term (but regulated by bottom friction) are responsible for the along-isobath flow. The quadratic bottom friction plays a role in generating mean currents only in the very shallow area off the Colorado River Delta. The effect of wind stress was modeled by imposing upon the running M2 model a constant surface stress (r = 0.016 Pa), from the NW for winter conditions and from the SE for summer conditions. The wind-induced circulation was obtained by averaging over a tidal cycle and then subtracting the tidal residuals. The two wind directions produce almost identical circulation patterns, but with opposite directions. For the NW wind stress, the main features of the predicted circulation are: (a) In the Northern Gulf an anticyclonic circulation pattern, with the strongest currents (up to ~ 10 cm s-1) following the bathymetry of the rim of Delfín Basin, Wagner Basin and the mainland coast off Bahía Adair and Bahía San Jorge. There is also a southward flow along the peninsula coast, from the Colorado River to Bahía San Luis Gonzaga. (b) In the Southern Gulf, there is a strong flow (~ 10 to 15 cm s-1) to the SE over the continental shelf along the mainland coast. A somewhat less well-defined return flow (~ 5 cm s-1) from Santa Rosalía to Isla San Lorenzo complete an anticyclonic circulation in the area immediately to the SE of the islands. Some of the predicted features of the wind-driven flow in the Northern Gulf of California are in qualitative agreement with current meter observations, but the model underestimates them which may be attributable to baroclinity, not included in the model.
Idioma
eng
ISSN
ISSN electrónico: 2395-8812; ISSN impreso: 0187-6236

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