Influence of the wind profile on the initiation of convection in mountainous terrain

Hagen, Martin; Baelen, Joël Van; Richard, Évelyne

doi:10.1002/qj.784

Cited by 41 publications

(40 citation statements)

References 34 publications

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“…One possible reason for CI in the Rhine Valley may be the common occurrence of boundary-layer convergence zones. Hagen et al (2011) frequently observed CI in the Rhine Valley on days with strong southwesterly winds. They attributed the origin of CI to convergence zones caused by flow around the Vosges at the southern and northern ends and flow through the west-east oriented gaps and valleys of the Vosges.…”

Section: Discussionmentioning

confidence: 92%

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Radar climatology of the COPS region

Weckwerth

Wilson

Hagen

et al. 2011

Quart J Royal Meteoro Soc

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Section: Discussionmentioning

confidence: 92%

“…low CAPE and relatively high CIN; Kalthoff et al, 2009). Hagen et al (2011) compared two CI days during COPS and noted that the Rhine Valley is densely populated with strong industrial activity; therefore they suggested that the heat island effect could supply enough buoyancy to overcome the CIN and allow for thunderstorm development.…”

Section: Introductionmentioning

confidence: 99%

Radar climatology of the COPS region

Weckwerth

Wilson

Hagen

et al. 2011

Quart J Royal Meteoro Soc

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“…Hagen et al (2011), in this issue, investigate the role of the wind profile and low-level convergence for the initiation of convection over the wider COPS domain on 12 and 13 August 2007. This article focuses on the convection observed by the DOW radars over the northern Black Forest.…”

Section: Satellite and Radar Observationsmentioning

confidence: 99%

Initiation of convection over the Black Forest mountains during COPS IOP15a

Bennett

Blyth

Burton

et al. 2011

Quart J Royal Meteoro Soc

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“…Many studies are applied to convectively unstable synoptic situations [2]- [7]. Synoptic-scale kinetic energy analysis has shown convective storm environments to be regions of intense energy transformations and transports [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Kinetic Energy Budget of a Tropical Cyclone

Mohamed¹,

Husin²,

Hasanen³

2015

ACS

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An analysis of the kinetic energy budget is made for a tropical cyclone. Horizontal flux convergence constitutes a major energy source. Generation of kinetic energy via cross-contour flow is a persistent sink throughout the pre-storm and growth periods. Dissipation of kinetic energy from subgrid to grid scales is an important source during the pre-storm and growth periods; it acts as the major sink of energy during the decay period. The major contribution to kinetic energy comes from a persistent upper tropospheric jet stream activity throughout the period of the cyclone development. Unlike midlatitude cyclones, a considerable quantity of kinetic energy appears between 850 -500 hPa layers especially during the growth period. While the behavior of the values of horizontal divergence by nondivergent wind closely resemble to those of total horizontal divergence term, neglecting the divergent part of the wind would clearly lead to a considerable error in the calculation of total horizontal divergence. The mean error in approximation of total horizontal divergence by the nondivergent part during the life cycle of our cyclone is about 36%.

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Influence of the wind profile on the initiation of convection in mountainous terrain

Cited by 41 publications

References 34 publications

Radar climatology of the COPS region

Radar climatology of the COPS region

Initiation of convection over the Black Forest mountains during COPS IOP15a

Kinetic Energy Budget of a Tropical Cyclone

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