FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2057812582> ?p ?o ?g. }

• W2057812582 endingPage "5646" @default.
• W2057812582 startingPage "5587" @default.
• W2057812582 abstract "Abstract. The development of tropical depressions within tropical waves over the Atlantic and eastern Pacific is usually preceded by a surface low along the wave as if to suggest a hybrid wave-vortex structure in which flow streamlines not only undulate with the waves, but form a closed circulation in the lower troposphere surrounding the low. This structure, equatorward of the easterly jet axis, is identified herein as the familiar critical layer of waves in shear flow, a flow configuration which arguably provides the simplest conceptual framework for tropical cyclogenesis resulting from tropical waves, their interaction with the mean flow, and with diabatic processes associated with deep moist convection. The recirculating Kelvin cat's eye within the critical layer represents a sweet spot for tropical cyclogenesis in which a proto-vortex may form and grow within its parent wave. A common location for storm development is given by the intersection of the wave's critical latitude and trough axis at the center of the cat's eye, with analyzed vorticity centroid nearby. The wave and vortex live together for a time, and initially propagate at approximately the same speed. In most cases this coupled propagation continues for a few days after a tropical depression is identified. For easterly waves, as the name suggests, the propagation is westward. It is shown that in order to visualize optimally the associated Lagrangian motions, one should view the flow streamlines, or stream function, in a frame of reference translating horizontally with the phase propagation of the parent wave. In this co-moving frame, streamlines are approximately equivalent to particle trajectories. The closed circulation is quasi-stationary, and a dividing streamline separates air within the cat's eye from air outside. The critical layer equatorward of the easterly jet axis is important to tropical cyclogenesis because its cat's eye provides (i) a region of cyclonic vorticity and weak deformation by the resolved flow, (ii) containment of moisture entrained by the developing gyre and/or lofted by deep convection therein, (iii) confinement of mesoscale vortex aggregation, (iv) a predominantly convective type of heating profile, and (v) maintenance or enhancement of the parent wave until the vortex becomes a self-sustaining entity and emerges from the wave as a tropical depression. The entire sequence is likened to the development of a marsupial infant in its mother's pouch. These ideas are formulated in three new hypotheses describing the flow kinematics and dynamics, moist thermodynamics and wave/vortex interactions comprising the marsupial paradigm. A survey of 55 named tropical storms in 1998–2001 reveals that actual critical layers sometimes resemble the ideal east-west train of cat's eyes, but are usually less regular, with one or more recirculation regions in the co-moving frame. It is shown that the kinematics of isolated proto-vortices carried by the wave also can be visualized in a frame of reference translating at or near the phase speed of the parent wave. The proper translation speeds for wave and vortex may vary with height owing to vertical shear and wave-vortex interaction. Some implications for entrainment/containment of vorticity and moisture in the cat's eye are discussed from this perspective, based on the observational survey." @default.
• W2057812582 created "2016-06-24" @default.
• W2057812582 creator A5046482477 @default.
• W2057812582 creator A5065721621 @default.
• W2057812582 creator A5081940087 @default.
• W2057812582 date "2009-08-06" @default.
• W2057812582 modified "2023-10-09" @default.
• W2057812582 title "Tropical cyclogenesis in a tropical wave critical layer: easterly waves" @default.
• W2057812582 cites W1482091481 @default.
• W2057812582 cites W1651530196 @default.
• W2057812582 cites W1965406497 @default.
• W2057812582 cites W1967452652 @default.
• W2057812582 cites W1970193542 @default.
• W2057812582 cites W1975684064 @default.
• W2057812582 cites W1976703753 @default.
• W2057812582 cites W1976750260 @default.
• W2057812582 cites W1977391801 @default.
• W2057812582 cites W1977452436 @default.
• W2057812582 cites W1977499649 @default.
• W2057812582 cites W1977569626 @default.
• W2057812582 cites W1980051782 @default.
• W2057812582 cites W1984782207 @default.
• W2057812582 cites W1984835387 @default.
• W2057812582 cites W1985007994 @default.
• W2057812582 cites W1986209721 @default.
• W2057812582 cites W1986302095 @default.
• W2057812582 cites W1989781680 @default.
• W2057812582 cites W1989827019 @default.
• W2057812582 cites W1991329119 @default.
• W2057812582 cites W1992044024 @default.
• W2057812582 cites W1992523086 @default.
• W2057812582 cites W1994572040 @default.
• W2057812582 cites W1997158493 @default.
• W2057812582 cites W1997406232 @default.
• W2057812582 cites W2002412747 @default.
• W2057812582 cites W2002587897 @default.
• W2057812582 cites W2003291154 @default.
• W2057812582 cites W2003480869 @default.
• W2057812582 cites W2003523400 @default.
• W2057812582 cites W2005781466 @default.
• W2057812582 cites W2008590992 @default.
• W2057812582 cites W2012249250 @default.
• W2057812582 cites W2012393256 @default.
• W2057812582 cites W2019971590 @default.
• W2057812582 cites W2020522537 @default.
• W2057812582 cites W2021487683 @default.
• W2057812582 cites W2023440674 @default.
• W2057812582 cites W2027615250 @default.
• W2057812582 cites W2028034346 @default.
• W2057812582 cites W2030110003 @default.
• W2057812582 cites W2031809277 @default.
• W2057812582 cites W2033156080 @default.
• W2057812582 cites W2034151784 @default.
• W2057812582 cites W2035813204 @default.
• W2057812582 cites W2038443410 @default.
• W2057812582 cites W2042356375 @default.
• W2057812582 cites W2043625639 @default.
• W2057812582 cites W2044690762 @default.
• W2057812582 cites W2046853662 @default.
• W2057812582 cites W2047800647 @default.
• W2057812582 cites W2048876654 @default.
• W2057812582 cites W2051585361 @default.
• W2057812582 cites W2051768798 @default.
• W2057812582 cites W2053050915 @default.
• W2057812582 cites W2058588889 @default.
• W2057812582 cites W2058740778 @default.
• W2057812582 cites W2059050855 @default.
• W2057812582 cites W2059740959 @default.
• W2057812582 cites W2062674392 @default.
• W2057812582 cites W2065075252 @default.
• W2057812582 cites W2065180480 @default.
• W2057812582 cites W2067625322 @default.
• W2057812582 cites W2067758371 @default.
• W2057812582 cites W2069892666 @default.
• W2057812582 cites W2070174487 @default.
• W2057812582 cites W2073708920 @default.
• W2057812582 cites W2075531545 @default.
• W2057812582 cites W2075718420 @default.
• W2057812582 cites W2076977109 @default.
• W2057812582 cites W2077550432 @default.
• W2057812582 cites W2078446057 @default.
• W2057812582 cites W2078890775 @default.
• W2057812582 cites W2079247826 @default.
• W2057812582 cites W2079385925 @default.
• W2057812582 cites W2082447972 @default.
• W2057812582 cites W2086495392 @default.
• W2057812582 cites W2086517218 @default.
• W2057812582 cites W2091400108 @default.
• W2057812582 cites W2091540726 @default.
• W2057812582 cites W2091698545 @default.
• W2057812582 cites W2097376228 @default.
• W2057812582 cites W2099083749 @default.
• W2057812582 cites W2099319298 @default.
• W2057812582 cites W2099346501 @default.
• W2057812582 cites W2099515471 @default.
• W2057812582 cites W2099604502 @default.
• W2057812582 cites W2099921877 @default.
• W2057812582 cites W2100681014 @default.

• next