Cloud Patterns: Part 1: Some Aspects of the Organization of Cloud Patterns

Oliver, Vincent J.; Oliver, Mildred B.

doi:10.1175/1520-0493(1963)091<0621:psaoto>2.3.co;2

Cited by 3 publications

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“…Our ring-shaped distribution was very similar to the ring-shaped distribution seen in the Lake Okeechobee area in Florida, which was considered to be caused by differential heating between the lake water and the ground surface (Oliver and Oliver 1963). However, the authors considered that the present ring-shaped cloud distributions were caused by several downward motion areas accompanied by the convergence zone in its periphery.…”

Section: The Ring-shaped Clouds Over the Gulf Of Siamsupporting

confidence: 77%

Cloud Distributions near the Periphery of a Convergence Zone in the Tropical Region

Magono

Chiyu

1969

Journal of the Meteorological Society of Japan

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Cloud observationswere made over the Gulf of Siam, using a passenger flight airplane.Several ring-shaped cloud distributions were observed near the periphery of a convergence zone, and it was considered that they were not look like the usual Benard's cell type motion, but were produced by a several downward air motion near the periphery of the convergence zone.A Cb cloud and a characteristic towering cumulus cloud with cloud bands of starfish-like form were observed.An effective sucking area with about 60 km diameter for the Cb or the towering cloud was estimated from the cloud band distribution.

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Section: The Ring-shaped Clouds Over the Gulf Of Siamsupporting

confidence: 77%

Cloud Distributions near the Periphery of a Convergence Zone in the Tropical Region

Magono

Chiyu

1969

Journal of the Meteorological Society of Japan

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“…During the first decade of operational weather satellites a few meteorologists drew attention to the sensitivity of small cumulus clouds to the land surface. Apart from the suppressive effect of the Great Lakes, early observations of portions of the Mississippi Basin [e.g., Oliver and Oliver, 1963;Anderson et al, 1966, pp. 34-36 and 169-170] implied that relatively gentle topography can affect the distribution of these clouds.…”

Section: Introductionmentioning

confidence: 99%

Satellite observations of shallow cumulus coverage over the central United States: An exploration of land use impact on cloud cover

Rabin¹,

Martin²

1996

J. Geophys. Res.

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A simple algorithm is presented which identifies cumulus clouds in visible and infrared satellite image pairs. The algorithm is applied to hourly pairs of the Geostationary Operational Environmental Satellite (GOES) to determine the relative frequency of daytime cumulus clouds over the central United States for two consecutive Julys: one drought (1988) and one control (1987). In both Julys, cumulus frequency decreased from southeast to northwest, against the gradient of elevation, but with the gradient of midday average relative humidity. On the scale of uplands and lowlands and even isolated ridges it tended to increase with elevation. During the drought in July, contrasts in vegetative cover were especially large. These contrasts tended to oppose contrasts in surface temperature inferred from satellite radiometers. They also tended to oppose contrasts in the frequency of shallow cumulus. Over central and southern Illinois, a flat to gently undulating, mostly rural plain, during July 1988, shallow cumulus clouds occurred more often over lightly vegetated than heavily vegetated landscapes. These clouds also tended to be relatively abundant near the larger urban centers. During the control July of 1987, fewer cumulus clouds were recorded.

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