Wintertime Observations of Roll Clouds over the Bering Sea

Walter, Bernard A.

doi:10.1175/1520-0493(1980)108<2024:woorco>2.0.co;2

Cited by 48 publications

(36 citation statements)

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“…Numerous studies of OCP have been performed which were observed in cold-air outbreaks at different places over the world: for example, the Bering Sea [e.g., Walter, 1980] Briimmer, 1996Briimmer, , 1997Briimmer, , 1999. Case studies based on in situ measurements have demonstrated that enormous amounts of energy ranging from 100 to more than 1000 W/m 2 (sum of sensible and latent heat flux) are transferred from the ocean to the atmosphere during cold-air outbreaks [e.g., Sheu and Agee, 1977;Briimmer, 1996].…”

Section: Introductionsupporting

confidence: 64%

Wintertime roll and cell convection over Greenland and Barents Sea regions: A climatology

Brümmer¹,

Pohlmann²

2000

J. Geophys. Res.

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Section: Introductionsupporting

confidence: 64%

Wintertime roll and cell convection over Greenland and Barents Sea regions: A climatology

Brümmer¹,

Pohlmann²

2000

J. Geophys. Res.

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“…Lenschow, 1973;Ninomiya and Akiyama, 1976;Stage and Businger, 198 1;Yuen, 1985;Kantha and Mellor, 1989) and convective pattern generation and transition (e.g. Walter, 1980;Rothermel and Agee, 1980;Miura, 1986;Hein and Brown, 1988) involved. When the cold air mass leaves the ice surface and moves over the open water, the boundary layer is immediately transformed with respect to depth, temperature, moisture, cloudiness etc.…”

Section: Introductionmentioning

confidence: 99%

Boundary-layer modification in wintertime cold-air outbreaks from the Arctic sea ice

Brümmer¹

1996

Boundary-Layer Meteorol

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During the field experiment ARKTIS 1993 ten cases of boundary-layer modification in wintertime cold-air outbreaks from the Arctic sea ice in the Spitsbergen region were observed by aircraft over a distance ranging from about 50 km over the ice to about 300 km over the water. The modification depends decisively on the initial conditions over the ice, the boundary conditions at the bottom and top of the boundary layer and on the conditions of the large-scale flow. The modification of the bulk boundary-layer characteristics in relation to these conditions is presented.Besides the air-sea temperature contrast, the most important role for the boundary-layer modification is played by the stability on top of the boundary layer and by the divergence of the large-scale flow. According to the high variability of these conditions the observed boundary-layer modifications were very variable ranging from 100 to 300 m thick boundary layers with air temperatures between -32 and -22 'C over the ice to thicknesses between 900 and 2200 m and air temperatures between -15 and -5 'C after 300 km fetch over the open water. In most cases the large-scale flow was anticyclonic and divergent over the ice and changed to cyclonic and convergent over the water and an ice-sea breeze was superimposed on it.The sensible and latent heat fluxes are the dominant terms in the surface energy budget over the open water and ranged between 200 and 700 W m -' whereas the net longwave radiation is the dominating term over the ice with the heat fluxes only about 10 W me2.

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“…Cloud lines once formed have been shown to extend hundreds of miles downstream with little change in shape (Walter, 1980). The extent of the downstream persistence of cloud lines is increased when they form under synoptic scale induced low jevel inversions.…”

Section: Local Wind-induced Clouds and Interactions With Synoptic Scamentioning

confidence: 99%

Forecasters Handbook for the Bering Sea, Aleutian Islands, and Gulf of Alaska

Fett¹,

Englebretson²,

Perryman³

1993

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Wintertime Observations of Roll Clouds over the Bering Sea

Cited by 48 publications

References 0 publications

Wintertime roll and cell convection over Greenland and Barents Sea regions: A climatology

Wintertime roll and cell convection over Greenland and Barents Sea regions: A climatology

Boundary-layer modification in wintertime cold-air outbreaks from the Arctic sea ice

Forecasters Handbook for the Bering Sea, Aleutian Islands, and Gulf of Alaska

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