On the origin of hurricane spiral bands
Atlas, David; Hardy, Kenneth R.; Wexler, Raymond; Boucher, Roland J.
Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM
dor_id: 4141330
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336.#.#.b: article
336.#.#.3: Artículo de Investigación
336.#.#.a: Artículo
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856.4.0.u: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1696/1851
100.1.#.a: Atlas, David; Hardy, Kenneth R.; Wexler, Raymond; Boucher, Roland J.
524.#.#.a: Atlas, David, et al. (1963). On the origin of hurricane spiral bands. Geofísica Internacional; Vol. 3 Núm. 4: Octubre 1, 1963; 123-132. Recuperado de https://repositorio.unam.mx/contenidos/4141330
245.1.0.a: On the origin of hurricane spiral bands
502.#.#.c: Universidad Nacional Autónoma de México
561.1.#.a: Instituto de Geofísica, UNAM
264.#.0.c: 1963
264.#.1.c: 1963-10-01
653.#.#.a: Meteorología; Bandas espiraladas; Huracanes; Meteorology; Spiral band; Hurricanes
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-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico revistagi@igeofisica.unam.mx
884.#.#.k: http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1696
001.#.#.#: 063.oai:revistagi.geofisica.unam.mx:article/1696
041.#.7.h: spa
520.3.#.a: Vertical radar cross-sections of echo intensity in Hurricane Esther are used to build a three dimensional model of a spiral band. This model and PPI time-lapse movies show that the large persistent bands are essentially stratiform and have convective type clouds only at their upwind ends. The convective clouds are observed to develop upband outward relative to the eye, while spewing out precipitation particles which stream down-wind in plume· like fashion. The net effect is echo motion along the band in both direction; the plume extends downwind while the source cloud propagates upwind. The outward radial component of propagation of the source cloud gives the band its outward velocity. The major growth is concentrated in the stratiform region of the band at middle and low levels below 18,000 ft (0° C level at 14,000 ft). The presence of the bright band in the melting layer precludes that the moisture supply for growth occurs in the form of strong convective currents. A mechanism is proposed in which cooling by evaporation and melting snow con tributes to the establishment of a spiral line of convergence near the advancing edge of the band and gives rise to a cumuliform roll cloud. Cooling by melting snow within the core of the hand establishes a 0° C isothermal and causes instability which results in a finer scale handedness of stratocumulus below the melting level. The mechanism is consistent with direct meteorological observations; namely, that a few per cent of the precipitation area is comprised of "hot" convective towers, that the intermediate spiral bands are usually cold core, and that relatively modest turbulence is experienced within them.
773.1.#.t: Geofísica Internacional; Vol. 3 Núm. 4: Octubre 1, 1963; 123-132
773.1.#.o: http://revistagi.geofisica.unam.mx/index.php/RGI
022.#.#.a: ISSN-L: 2954-436X; ISSN impreso: 0016-7169
310.#.#.a: Trimestral
300.#.#.a: Páginas: 123-132
264.#.1.b: Instituto de Geofísica, UNAM
doi: https://doi.org/10.22201/igeof.2954436xe.1963.3.4.1696
handle: 4a0e6de45d4298a4
harvesting_date: 2023-06-20 17:00:00.0
856.#.0.q: application/pdf
file_creation_date: 2023-01-31 16:14:51.0
file_modification_date: 2023-04-27 20:45:10.0
file_creator: David Atlas
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245.1.0.b: Sobre el origen de las bandas espiraladas de los huracanes
last_modified: 2023-06-20 17:00:00
license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es
license_type: by-nc-sa
Atlas, David; Hardy, Kenneth R.; Wexler, Raymond; Boucher, Roland J.
Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM
Atlas, David, et al. (1963). On the origin of hurricane spiral bands. Geofísica Internacional; Vol. 3 Núm. 4: Octubre 1, 1963; 123-132. Recuperado de https://repositorio.unam.mx/contenidos/4141330