Long-term change of tropical cyclones activity and its potential impacts on Vietnam

2020 ◽  
Author(s):  
Thi Ngoc Huyen Ho ◽  
S.-Y. Simon Wang ◽  
Karthik Balaguru ◽  
Kyo-Sun Lim ◽  
Jin-Ho Yoon
Keyword(s):  
Spatial Distribution ◽  
South China Sea ◽  
Tropical Cyclones ◽  
The Philippines ◽  
Practical Significance ◽  
National Scale ◽  
Rainfall Events ◽  
Term Change ◽  
Different Parts

<p>Tropical cyclones (TCs) are the most dangerous climatic events in Vietnam. Recently, most of the studies have focused on TCs frequency and intensity, yet the rainfall events caused by them have not been got adequate attention. We show here the long-term change of TCs activity developed in both the South China Sea and the Philippines Sea and estimated its potential impacts during the period of 1977 – 2016. The trend analysis reveals that TCs have not shown obvious variability in numbers and destructiveness ability, whereas the TCs-induced rainfall events and its spatial distribution exhibit more complex patterns in different parts of Vietnam. For example, increasing rainfall amounts in the northern part is likely caused by TCs despite the fact that the TCs frequency did not exhibit much of significant changes. Evaluating rainfall caused by TCs activity is of great practical significance for Vietnam. Our findings suggest that in addition to the TCs frequency and intensity, TCs-induced rainfall events should be considered and included in future preparedness and response plans both on regional and national scale.</p>

Dividing ASEAN and the Limits to China’s Influence Abroad

2018 ◽  
pp. 214-236
Author(s):  
Daniel C. O'Neill
Keyword(s):  
Latin America ◽  
Comparative Analysis ◽  
South China Sea ◽  
Political Institutions ◽  
The Philippines ◽  
State Governments ◽  
Bilateral Relations ◽  
To Come ◽  
The Impact

The chapter summarizes the book’s findings on China’s efforts to divide ASEAN and conquer the South China Sea, using variation in member state’s reactions to the decision in favor of the Philippines by the tribunal at the Permanent Court of Arbitration to illustrate the impact of China’s influence. The book concludes that because of the inherent differences within ASEAN, especially in political institutions, as well as the intrinsic difficulties of effective multilateralism and collective action, ASEAN will be unlikely to come together to force China to the negotiating table, as long as China wishes to resist taking a seat. The chapter notes that China’s efforts to influence states in the region have not always been successful, as the case studies illustrate; China has advantages in influencing developing state, authoritarian governments but faces more and higher hurdles in its efforts to influence developing state governments operating within relatively democratic institutions. A brief comparative analysis of China’s bilateral relations in Latin America suggests that the book’s findings are generalizable to China’s relations with developing states globally. The book concludes that the potential evolution of political institutions toward democracy is a form of long-term political risk facing Chinese efforts to influence developing state governments.

scholarly journals Long-term change in coral cover and the effectiveness of marine protected areas in the Philippines: a meta-analysis

Hydrobiologia ◽  
2013 ◽  
Vol 733 (1) ◽  
pp. 5-17 ◽  
Author(s):  
Evangeline T. Magdaong ◽  
Masahiko Fujii ◽  
Hiroya Yamano ◽  
Wilfredo Y. Licuanan ◽  
Aileen Maypa ◽  
...  
Keyword(s):  
Protected Areas ◽  
Marine Protected Areas ◽  
Coral Cover ◽  
Meta Analysis ◽  
The Philippines ◽  
Term Change

scholarly journals Ca II H High-Resolution Spectral Monitoring of Active Late-type Dwarfs

1991 ◽  
Vol 130 ◽  
pp. 463-465
Author(s):  
J. E. Beckman ◽  
R. J.García López ◽  
R. Rebolo ◽  
L. Crivellari
Keyword(s):  
High Resolution ◽  
Velocity Fields ◽  
Late Type ◽  
Short Term ◽  
Term Change ◽  
Flux Monitoring ◽  
Spectral Monitoring ◽  
Different Parts ◽  
Lower Chromosphere

AbstractWe have monitored Ca II H with a spectral resolution of 8 × 104, in asimple of late-type MS stars over a four-year period. The high resolution enables us to add information on velocity fields to the usual flux monitoring. We detect changes in wavelength of different parts of the Ca II H feature, which can be interpreted as velocity fields in the lower chromosphere, with downflow and upflow of order 0.5 km s−1, depending on the star. Flux variations in Ca II H emission can be ascribed, via velocity tagging, to long-term change in plage cover rather than short-term modulation by (incompletely sampled) rotation cycles.

Vivid Imagers Are Better at Detecting Salient Changes

2006 ◽  
Vol 27 (4) ◽  
pp. 218-228 ◽  
Author(s):  
Paul Rodway ◽  
Karen Gillies ◽  
Astrid Schepman
Keyword(s):  
Individual Differences ◽  
Change Detection ◽  
Visual Imagery ◽  
Detection Task ◽  
Level Of Detail ◽  
Detection Accuracy ◽  
Change Detection Task ◽  
Term Change ◽  
High Level

This study examined whether individual differences in the vividness of visual imagery influenced performance on a novel long-term change detection task. Participants were presented with a sequence of pictures, with each picture and its title displayed for 17  s, and then presented with changed or unchanged versions of those pictures and asked to detect whether the picture had been changed. Cuing the retrieval of the picture's image, by presenting the picture's title before the arrival of the changed picture, facilitated change detection accuracy. This suggests that the retrieval of the picture's representation immunizes it against overwriting by the arrival of the changed picture. The high and low vividness participants did not differ in overall levels of change detection accuracy. However, in replication of Gur and Hilgard (1975) , high vividness participants were significantly more accurate at detecting salient changes to pictures compared to low vividness participants. The results suggest that vivid images are not characterised by a high level of detail and that vivid imagery enhances memory for the salient aspects of a scene but not all of the details of a scene. Possible causes of this difference, and how they may lead to an understanding of individual differences in change detection, are considered.

Research on the Economic Vitality of the Northeast China

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Jiayue Jiao
Keyword(s):  
Northeast China ◽  
Practical Significance ◽  
Economic Policies ◽  
Regional Competitiveness ◽  
Regional Economic ◽  
Important Indicator ◽  
Depth Study ◽  
Long Term Impact ◽  
Economic Vitality

 Economic vitality is an important indicator of regional competitiveness. The demand for talents and the vitality of enterprises in different regions are obvious to all and have practical significance. Therefore, it is necessary to establish a survey data model and conduct in-depth study on improving regional economic vitality from the perspective of policy.Based on a variety of forecasting methods, this paper analyzes the short-term and long-term impact of economic policies in Northeast China, and finally puts forward the factors that affect the economic vitality of northeast policies. Finally, the paper puts forward the feasibility and targeted suggestions of strengthening regional economic vitality, obtaining long-term development and building a more competitive city in the new era. 

Social Cohesion, Breaks, and Transformations in Italy, 535–600

2018 ◽  
Author(s):  
Walter Pohl
Keyword(s):  
The Political ◽  
Late Antique ◽  
Religious Context ◽  
Ancient Society ◽  
Complex Process ◽  
Term Change ◽  
Two Generations ◽  
Classical Culture

When the Gothic War began in Italy in 535, the country still conserved many features of classical culture and late antique administration. Much of that was lost in the political upheavals of the following decades. Building on Chris Wickham’s work, this contribution sketches an integrated perspective of these changes, attempting to relate the contingency of events to the logic of long-term change, discussing political options in relation to military and economic means, and asking in what ways the erosion of consensus may be understood in a cultural and religious context. What was the role of military entrepreneurs of more or less barbarian or Roman extraction in the distribution or destruction of resources? How did Christianity contribute to the transformation of ancient society? The old model of barbarian invasions can contribute little to understanding this complex process. It is remarkable that for two generations, all political strategies in Italy ultimately failed.

Enhanced Seasonal Exchange of CO2 by Northern Ecosystems Since 1960

Science ◽  
2013 ◽  
Vol 341 (6150) ◽  
pp. 1085-1089 ◽  
Author(s):  
H. D. Graven ◽  
R. F. Keeling ◽  
S. C. Piper ◽  
P. K. Patra ◽  
B. B. Stephens ◽  
...  
Keyword(s):  
Boreal Forests ◽  
Atmospheric Carbon Dioxide ◽  
Ecosystem Models ◽  
The North ◽  
Ecological Changes ◽  
Term Change ◽  
Major Shift ◽  
Underlying Mechanisms ◽  
Global Carbon

Seasonal variations of atmospheric carbon dioxide (CO2) in the Northern Hemisphere have increased since the 1950s, but sparse observations have prevented a clear assessment of the patterns of long-term change and the underlying mechanisms. We compare recent aircraft-based observations of CO2 above the North Pacific and Arctic Oceans to earlier data from 1958 to 1961 and find that the seasonal amplitude at altitudes of 3 to 6 km increased by 50% for 45° to 90°N but by less than 25% for 10° to 45°N. An increase of 30 to 60% in the seasonal exchange of CO2 by northern extratropical land ecosystems, focused on boreal forests, is implicated, substantially more than simulated by current land ecosystem models. The observations appear to signal large ecological changes in northern forests and a major shift in the global carbon cycle.

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