A multiscale analysis of a case of slow growth/rapid cyclogenesis during CASP II

Gyakum, John R.; Stewart, Ronald E.

doi:10.1080/07055900.1996.9649556

Cited by 5 publications

(6 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have thus characterized individually many of the events considered by previous climatological studies (e.g., Roebber, 1984;Gyakum et al, 1989). Our results lend weight to a dynamical interpretation of the local maximum in strong cold-season cyclogenesis in the eastern North Pacific (cf.…”

Section: Discussionmentioning

confidence: 94%

“…The 50 most strongly deepening cyclones from 10 cold seasons are identified using a domain of 20°N to 70°N and 170°W to 120°W, which encompasses the long-term regional maximum in intensification (Gyakum et al, 1989). We focus on strong cyclones in part because their onset of maximum 24-h deepening provides a robust temporal point of reference.…”

Section: Methodology a Case Selectionmentioning

confidence: 99%

“…(If cyclone intensity change is measured by changes in wind speed or vorticity, then the deepening rate can be ambiguous because it does not account for changes in the environmental pressure field. However, we have computed 24-h growth rates following Gyakum and Stewart (1996) and find similar averages of (1.2 d) -1 and (1.4 d) -1 for the eastern and western groups, respectively.) Only one western cyclone occurs immediately upstream of an eastern cyclone.…”

Section: Downstream Baroclinic Development Among North Pacific Cyclonmentioning

confidence: 99%

“…Some surface climatologies are suggestive of a local maximum in strong cyclogenesis in the eastern North Pacific (e.g., Sanders and Gyakum, 1980;Murty et al, 1983;Roebber, 1984). This could be interpreted as resulting from the primary maximum in cyclogenesis in the western North Pacific (Gyakum et al, 1989). Such an interpretation would thus depend on a systematic propagation of energy across developing ridges in the mid-North Pacific toward predecessor upper-level troughs.…”

Section: Introductionmentioning

confidence: 99%

“…Their central pressures and positions have been tabulated at 00:00 UTC and 12:00 UTC based on the six-hourly final northern hemisphere manual sea level pressure analyses produced by the United States National Centers for Environmental Prediction (NCEP). A surface cyclone climatology based on events from the first eight seasons of this dataset is described by Gyakum et al (1989).…”

Section: Datamentioning

confidence: 99%

See 4 more Smart Citations

Downstream baroclinic development among forty‐one cold‐season Eastern North Pacific cyclones

2004

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 94%

Section: Methodology a Case Selectionmentioning

confidence: 99%

Section: Downstream Baroclinic Development Among North Pacific Cyclonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Datamentioning

confidence: 99%

See 3 more Smart Citations

Downstream baroclinic development among forty‐one cold‐season Eastern North Pacific cyclones

2004

Self Cite

View full text Add to dashboard Cite

show abstract

Canadian icing envelopes near the surface and its impact on wind energy assessment

Lamraoui

Fortin

Perron

et al. 2015

Cold Regions Science and Technology

View full text Add to dashboard Cite

CASPII and the Canadian cyclones during the 1989–92 cold seasons

et al. 1996

Self Cite

View full text Add to dashboard Cite

The climazological characteristics of cyclogenesis and the associated storm tracks in the domain of 40-70 0N and 50-14oe W are studied for the four cold seasons of 1989-1992. It is found that surface cyclones affecting the Canadian terrizories originate mostly from the eastern slopes of the Rocky Mountains, the Atlantic coast of the United Siates (US.) and the eastern North Paciflc basin. The explosive deepening of these systems is shown to occur preferentially along the Atlantic coast of both Canada and the US. h is also found that regions of mosi frequent occurrence of cyclones include Baffin Island, the Davis Strait, the northern Great Lakes and northern Newfoundland. A more detailed examination of the Canadian Atlantic Storms Program Il (CASP 11) season of January-March 1992 shows an anomalously large number of rapid cyclogenesis events occurring in the Atlantic coastal region of Canada. This anomaly is fourni in association with a persistent large-scale region of an unusually cold air mass. RÉSUME On étudie les caractéristiques climatologiques de la cyclogénese et des trajectoires des tempêtes sur le secteur de 40-70"N et 50-140" O pour les quatres saisons froides de 1989 à 1992. On s'aperçoit que les cyclones de surface affectant le territoire canadien proviennent surtout des pentes est des Rocheuses, de la côte atlantique américaine et du bassin est du Pacifique Nord. Le creusement explosif de ces systèmes survient particulièrement le long des côtes atlantiques canadienne et américaine. On remarque aussi que les régions les plus touchées comprennent l'île de Baffin, le détroit de Davis, le nord des Grands Lacs et le nord de Terre-Neuve. Une observation plus détaillée de la saison janvier-mars 1992 du Programme canadien d'études des tempêtes de l'Atlantique (PCETA Il) montre un nombre anomale fort elevé de cyclogénèses rapides sur les régions côtières atlantiques canadiennes. Cette anomalie est en association avec une région de grande échelle de masses d'air froLd inhabituelles persistante.

show abstract

A multiscale analysis of a case of slow growth/rapid cyclogenesis during CASP II

Cited by 5 publications

References 23 publications

Downstream baroclinic development among forty‐one cold‐season Eastern North Pacific cyclones

Downstream baroclinic development among forty‐one cold‐season Eastern North Pacific cyclones

Canadian icing envelopes near the surface and its impact on wind energy assessment

CASPII and the Canadian cyclones during the 1989–92 cold seasons

Contact Info

Product

Resources

About