DSpace at VNU: Synoptic-Dynamic Analysis of Early Dry-Season Rainfall Events in the Vietnamese Central Highlands

Monthly Weather Review EARLY ONLINE RELEASE This is a preliminary PDF of the author-produced manuscript that has been peer-reviewed and accepted for publication.. This preliminary vers

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The DOI for this manuscript is doi: 10.1175/MWR-D-15-0265.1

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van der Linden, R., A Fink, T Phan-Van, and L Trinh-Tuan, 2016: Dynamic Analysis of Early Dry-Season Rainfall Events in the Vietnamese Central Highlands Mon Wea Rev doi:10.1175/MWR-D-15-0265.1, in press

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Synoptic-Dynamic Analysis of Early Dry-Season Rainfall Events in the

1 Corresponding author address: Roderick van der Linden, Institute for Geophysics and

Meteorology, University of Cologne, Pohligstr 3, 50969 Cologne, Germany

E-mail: rvdlinde@uni-koeln.de

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and N4 in Nguyen et al 2013) Contrary to the Vietnamese Central Highlands where an

describe a January 2010 case in which the Borneo Vortex moved northwestward and

lead to rainfall in Vietnam’s most important coffee-growing region In Section 2, data and

To describe the evolution of deep convection, three-hourly Gridded Satellite

(case III), and “cold surge with Borneo Vortex” (case IV) The reasons for the naming are

center located over the Yellow Sea on 09 November 1982 at 1800 UTC (Figure 3a) At this

As a consequence of the strong surface anticyclogenesis over China, the MSLP

Highlands southward and in the southern portion of the SCS (Figure 4b), suggesting potential

show a cyclonic circulation over the Western Pacific on 26 November 1986 that was

by previous studies (e.g., Roundy 2008; Schreck and Molinari 2011; and Schreck 2015) the

The high Froude number is one explanation that explains why rainfall reached

was located exceptionally far west with its center located above the Sea of Okhotsk and the

scale wave diagnostics were employed to obtain a thorough description of the synoptic

While case I shows some similarities to the cold surge event of 02–03 November 1999

Given the data paucity over the Central Highlands and the relatively coarse resolution of

China Sea Part I: Formation and Propagation of Cold Surge Vortex J Climate, 28,

Jeong, J.-H., T Ou, H W Linderholm, B.-M Kim, S.-J Kim, J.-S Kug, and D Chen, 2011:

Liebmann, B., and C A Smith, 1996: Description of a Complete (Interpolated) Outgoing

Schreck, C J., and J Molinari, 2011: Tropical Cyclogenesis Associated with Kelvin Waves

based on a Dense Network of Rain Gauges Bull Amer Meteor Soc., 93, 1401–1415,

Figure 4 Influence of the cold front on Vietnam on 10 November 1982, 0600 UTC (a)

Figure 8 TD-type disturbance reaching Vietnam on 02 December 1986, 0600 UTC (a)

wind (colors), 10 m wind (vectors), and SF-CAPE (stippling) (c) Topography (colors),

flux (vectors), humidity flux convergence (colors) and GridSat brightness temperatures

706

(stippling)

707