Winter Monsoon Convection in the Vicinity of North Borneo. Part I: Structure and Time Variation of the Clouds and Precipitation

Houze, Robert A.; Geotis, Spiros G.; Marks, Frank D.; West, Arthur K.

doi:10.1175/1520-0493(1981)109<1595:wmcitv>2.0.co;2

Cited by 256 publications

(245 citation statements)

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“…The MRI-GCM incompletely simulates the nocturnal convection propagating offshore. This propagation was first found by Houze et al (1981). Over the inland area, the simulated precipitation has a very large phase error in the diurnal cycle.…”

Section: Diurnal Cycle Of Convective Activities In Gcmmentioning

confidence: 54%

Assessment of the Diurnal Cycle of Precipitation over the Maritime Continent Simulated by a 20 km Mesh GCM Using TRMM PR Data

Hara

Yoshikane

Takahashi

et al. 2009

Journal of the Meteorological Society of Japan

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This study investigates precipitation over the Maritime Continent, comparing the precipitation simulated by a 20 km-grid Meteorological Research Institute General Circulation Model (MRI-GCM) and the nearsurface rain data of TRMM 2A25. The focus is particularly the diurnal cycle and its phase distribution of precipitation. The features of the simulated precipitation mostly agree well with observations made over islands and straits having horizontal scales smaller than 200 km. However, these are quite different around larger islands, such as Sumatra and Borneo, particularly in the phase of the diurnal cycle. The MRI-GCM indicates maximum pre cipitation in the early afternoon on these islands, while the observed precipitation has its maximum at night. In particular, over the inland areas of the larger islands, the simulated diurnal cycle has almost a reversed phase. The simulated precipitation is remarkably weaker than the observation around the western coast of Sumatra Island, where a large discrepancy is also found in the phase distribution along a line perpendicular to the coast. A higher-resolution simulation using a nonhydrostatic model without convective parameterizations substantially improves the phase distribution over Borneo Island. The non-hydrostatic model simulates well the migration of the precipitation zone and the daily maximum at night in the inland areas. In contrast, the GCM fails to simulate the diurnal cycle over islands whose horizontal scale is larger than 200 km, although the 20 km grid spacing is small enough to reproduce the major aspects of the local circulations. The cause for this seems to be the cumulus convective parameterization, which may not adequately represent the coupling of convection and local circulations.

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Section: Diurnal Cycle Of Convective Activities In Gcmmentioning

confidence: 54%

Assessment of the Diurnal Cycle of Precipitation over the Maritime Continent Simulated by a 20 km Mesh GCM Using TRMM PR Data

Hara

Yoshikane

Takahashi

et al. 2009

Journal of the Meteorological Society of Japan

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“…The trapping effect of the mountains on the present land breeze circulation probably deepens the land breeze layers. Houze et al (1981) showed that convergence between the northeasterly monsoon and a land breeze, formed mesoscale cloud systems along the western shore of Borneo in the tropics. These cloud systems are typical cases of land breeze-originated convection.…”

Section: E Comparison With Other Casesmentioning

confidence: 99%

Doppler Radar Analysis of the Structure of Mesoscale Snow Bands Developed between the Winter Monsoon and the Land Breeze

Ishihara¹,

Sakakibara²,

Yanagisawa³

1989

Journal of the Meteorological Society of Japan

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“…The relevant processes reported in previous studies include land breeze convergence [Houze et al, 1981], advection by background wind [Mori et al, 2004;Sakurai et al, 2009Sakurai et al, , 2011, self-replication of convective cells [Sakurai et al, 2009[Sakurai et al, , 2011, convergence of cold outflows produced by rainfall systems [Fujita et al, 2010], and gravity waves triggered by daytime heating of the mixed layer on land [Mapes et al, 2003] or convection on land [Love et al, 2011]. effects of seasonality on the diurnal propagation of precipitation systems.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the direction of diurnal rainfall migration and the ambient wind over the Southern Sumatra Island

Yanase

Yasunaga

Masunaga

2017

Earth and Space Science

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This study investigates the climatological relationship between diurnal rainfall migration and the ambient wind over the southern Sumatra by using observation and reanalysis of 15 years of data from the Tropical Rainfall Measuring Mission satellite precipitation radar. When winds in the lower troposphere (1000-500 hPa) are westerly, convective rainfall systems migrate eastward, while rainfall systems dominated by stratiform precipitation propagate to the west in association with mid-upper level easterly winds. When the winds are easterly throughout the troposphere, both convective and stratiform precipitation systems propagate only to the west. Rainfall system migration appears to be generally consistent with ambient zonal wind. It is suggested that the advection by background wind is, in general, a dominant component of the propagation mechanism of diurnal rainfall.

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Winter Monsoon Convection in the Vicinity of North Borneo. Part I: Structure and Time Variation of the Clouds and Precipitation

Cited by 256 publications

References 0 publications

Assessment of the Diurnal Cycle of Precipitation over the Maritime Continent Simulated by a 20 km Mesh GCM Using TRMM PR Data

Assessment of the Diurnal Cycle of Precipitation over the Maritime Continent Simulated by a 20 km Mesh GCM Using TRMM PR Data

Doppler Radar Analysis of the Structure of Mesoscale Snow Bands Developed between the Winter Monsoon and the Land Breeze

Relationship between the direction of diurnal rainfall migration and the ambient wind over the Southern Sumatra Island

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