Considerable differences of the interannual variations for the tropical cyclone landfall over north and south East Asia in summer

2020 ◽  
Author(s):  
Jufen Lai ◽  
Chaofan Li ◽  
Riyu Lu
Keyword(s):  
Tropical Cyclone ◽  
East Asia ◽  
The Philippines ◽  
Boreal Summer ◽  
South East Asia ◽  
Interannual Variations ◽  
Seasonal Forecasts ◽  
The South ◽  
North East ◽  
North And South

<p>Interannual variation of tropical cyclone (TC) landfall frequency is not consistent along the coast of East Asia, with large contrast of north and south East Asia coast regions in boreal summer. This study examines interannual variations of TC landfall frequency over north and south East Asia and identifies roles of the western North Pacific subtropical high (WNPSH) and TC genesis frequency associated with these variations. Although the total number of landing TC of north and south East Asia is similar, interannual variations of TC landfall frequency are relatively independent to each other, with the corresponding correlation coefficient north and south of 25°N is only –0.024 from 1979 to 2017. TC landfall over north East Asia is largely modulated by the circulation related to the WNPSH, while TC landfall in the south has no significant relationship with the WNPSH or other remote large-scale circulations. The WNPSH effectively regulates TC landfall in the north by modulating TC genesis east of the Philippines and steering flows. Nonetheless, the two factors have weak contradictory effects on TC landing in the south region. The frequency of TC genesis around the South China Sea directly connects to the TC landfall over south East Asia, which is modulated by the surrounding genesis environment, including relative humidity and relative vorticity. This work favors for a better understanding of the seasonal forecasts of TC landfall frequency and the subsequent climate service over East Asia.</p>

scholarly journals EDITORIAL

2001 ◽  
Vol 6 (1) ◽  
pp. 1-2
Keyword(s):  
New Zealand ◽  
East Asia ◽  
South Pacific ◽  
The Philippines ◽  
Music Technology ◽  
South East Asia ◽  
The South

The collection of papers in this issue of Organised Sound results from a call for material focused on the theme of music technology in Australasia (New Zealand, Australia and neighbouring Islands of the South Pacific) and South East Asia (Brunei, Burma, Indonesia, Cambodia, Laos, Malaysia, the Philippines, Thailand and Vietnam).

Rice and Forest Farming in East and South-East Asia

2006 ◽  
Author(s):  
Graeme Barker
Keyword(s):  
East Asia ◽  
Pacific Islands ◽  
Deciduous Forest ◽  
Yellow River ◽  
Solomon Islands ◽  
Coniferous Forest ◽  
New Guinea ◽  
The Philippines ◽  
South East Asia ◽  
North East

East and South-East Asia is a vast and diverse region (Fig. 6.1). The northern boundary can be taken as approximately 45 degrees latitude, from the Gobi desert on the west across Manchuria to the northern shores of Hokkaido, the main island of northern Japan. The southern boundary is over 6,000 kilometres away: the chain of islands from Java to New Guinea, approximately 10 degrees south of the Equator. From west to east across South-East Asia, from the western tip of Sumatra at 95 degrees longitude to the eastern end of New Guinea at 150 degrees longitude, is also some 6,000 kilometres. Transitions to farming within this huge area are discussed in this chapter in the context of four major sub-regions: China; the Korean peninsula and Japan; mainland South-East Asia (Vietnam, Laos, Cambodia, Thailand, the Malay peninsula); and island South-East Asia (principally Taiwan, the Philippines, Sumatra, Java, Borneo, Sulawesi, and New Guinea). The chapter also discusses the development of agricultural systems across the Pacific islands to the east, both in island Melanesia (the Bismarck Archipelago and the Solomon Islands east of New Guinea) and in what Pacific archaeologists are terming ‘Remote Oceania’, the islands dotted across the central Pacific as far as Hawaii 6,000 kilometres east of Taiwan and Easter Island some 9,000 kilometres east of New Guinea—a region as big as East Asia and South-East Asia put together. The phytogeographic zones of China reflect the gradual transition from boreal to temperate to tropical conditions, as temperatures and rainfall increase moving southwards (Shi et al., 1993; Fig. 6.2 upper map): coniferous forest in the far north; mixed coniferous and deciduous forest in north-east China (Manchuria) extending into Korea; temperate deciduous and broadleaved forest in the middle and lower valley of the Huanghe (or Yellow) River and the Huai River to the south; sub-tropical evergreen broad-leaved forest in the middle and lower valley of the Yangzi (Yangtze) River; and tropical monsoonal rainforest on the southern coasts, which then extends southwards across mainland and island South-East Asia. Climate and vegetation also differ with altitude and distance from the coast.

The South-East Asia Crisis, Neural Networks and Market Behavior: An Exploratory Study

2003 ◽  
Vol 06 (03) ◽  
pp. 349-379 ◽  
Author(s):  
Callum Scott
Keyword(s):  
Neural Networks ◽  
New Zealand ◽  
East Asia ◽  
Exploratory Study ◽  
The Philippines ◽  
South East Asia ◽  
Market Behavior ◽  
The South ◽  
Time Changes ◽  
Market Learning

A model of market behavior as a learning process was explored using artificial neural networks. Market and currency data from the period before and during the South-East Asia crisis of 1997 relating to Indonesia, the Philippines, Malaysia, Thailand, Australia, and New Zealand was used to train neural networks. Time series of changes in neural networks' connection weights were generated whilst making a series of forecasts over time. Changes in connection weights captured the changing importance of these Asian markets to those of Australia and New Zealand as the crisis unfolded, and could be regarded as a measure of market learning.

Annona muricata (soursop).

2021 ◽  
Author(s):  
Marianne Jennifer Datiles ◽  
Pedro Acevedo-Rodríguez
Keyword(s):  
East Asia ◽  
Fruit Trees ◽  
The Philippines ◽  
Home Gardens ◽  
South East Asia ◽  
Annona Muricata ◽  
Old World ◽  
Evergreen Tree ◽  
Tropical America ◽  
Dark Green

Abstract A. muricata is a small evergreen tree up to 9 m tall. It is native to tropical America but is widely planted in home gardens in South-East Asia. In Brazil, several small commercial plantations are in operation (about 2000 hectares are planted) with more planned. It was one of the earliest fruit trees introduced to the old world, brought to the Philippines by the Spanish. It is valued chiefly for its edible fruits, which are large (> 1 kg), heart-shaped and dark green in colour. The flesh is tart, desirable for ice creams and drinks, fruit jellies and sweetcakes. In the Philippines, young fruits with seeds still soft are used as a vegetable.

scholarly journals HDSS Profile: The South East Asia Community Observatory Health and Demographic Surveillance System (SEACO HDSS)

2017 ◽  
Vol 46 (5) ◽  
pp. 1370-1371g ◽  
Author(s):  
Uttara Partap ◽  
Elizabeth H Young ◽  
Pascale Allotey ◽  
Ireneous N Soyiri ◽  
Nowrozy Jahan ◽  
...  
Keyword(s):  
East Asia ◽  
Surveillance System ◽  
Demographic Surveillance System ◽  
South East Asia ◽  
The South

Diurnal Cycle of Coastal Convection in the South China Sea Region and Modulation by the BSISO

2021 ◽  
pp. 1-53
Author(s):  
Weixin Xu ◽  
Steven A. Rutledge ◽  
Kyle Chudler
Keyword(s):  
South China Sea ◽  
South China ◽  
The Philippines ◽  
The South China Sea ◽  
Boreal Summer ◽  
Total Precipitation ◽  
The South ◽  
Low Level ◽  
China Sea ◽  
Diurnal Cycles

AbstractUsing 17-yr spaceborne precipitation radar measurements, this study investigates how diurnal cycles of rainfall and convective characteristics over the South China Sea region are modulated by the Boreal Summer Intraseasonal Oscillation (BSISO). Generally, diurnal cycles change significantly between suppressed and active BSISO periods. Over the Philippines and Indochina, where the low-level monsoon flows impinge on coast lines, diurnal cycles of rainfall and many convective properties are enhanced during suppressed periods. During active periods, diurnal variation of convection is still significant over land but diminishes over water. Also, afternoon peaks of rainfall and MCS populations over land are obviously extended in active periods, mainly through the enhancement of stratiform precipitation. Over Borneo, where the prevailing low-level winds are parallel to coasts, diurnal cycles (both onshore and offshore) are actually stronger during active periods. Radar profiles also demonstrate a pronounced nocturnal offshore propagation of deep convection over western Borneo in active periods. During suppressed periods, coastal afternoon convection over Borneo is reduced, and peak convection occurs over the mountains until the convective suppression is overcome in the late afternoon or evening. A major portion (> 70%) of the total precipitation over Philippines and Indochina during suppressed periods falls from afternoon isolated to medium-sized systems (< 10,000 km2), but more than 70% of the active BSISO rainfall is contributed by nocturnal (after 18 LT) broad precipitation systems (> 10,000 km2). However, offshore total precipitation is dominated by large precipitation systems (> 10,000 km2) regardless of BSISO phases and regions.

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