Long-term trend in potential vorticity intrusion events over the Pacific Ocean: Role of global mean temperature rise

This chapter examines the contribution of Sino-Japanese economic interdependence on China's moderation of the role of mass nationalism on its policymaking. It contends that the importance to China of stable Sino-Japanese economic cooperation has compelled Chinese leaders to repress periodic mass outbursts of anti-Japanese nationalism before they could harm Sino-Japanese economic cooperation. But the rise of the Chinese economy vis-à-vis Japan, and Beijing's corresponding understanding that Japanese dependence on the Chinese economy has superseded Sino-Japanese interdependence, have weakened the constraints of economic interests on China's Japan policy. The rise of the Chinese economy has eroded the contribution of economic interdependence to stable Sino-Japanese relations, suggesting a long-term trend of greater nationalist content in China's Japan policy.

Download Full-text

Long term relation between solar activity and surface temperature at different geographical regions

Proceedings of the International Astronomical Union ◽

10.1017/s1743921312005170 ◽

2011 ◽

Vol 7 (S286) ◽

pp. 418-422

Author(s):

M. P. Souza-Echer ◽

W. D. Gonzalez ◽

E. Echer ◽

D. J. R. Nordemann ◽

N. R. Rigozo

Keyword(s):

Solar Activity ◽

Surface Temperature ◽

Temperature Series ◽

Term Trend ◽

Natural Processes ◽

Term Relation ◽

Geographical Regions ◽

Long Term Trend

AbstractGlobal suface temperature has showed a rise trend in the last 150 years. This has been mainly attributed to the anthropogenic induced grenhouse gases emissions. However, the role of natural processes is not completely understood and should not be underestimated. In this work, we compare the long term variability of solar activity (as quantified by the sunspot number) with several surface temperature series from different geographical regions (global, hemispheric and latitudinal ranges). The interval of analysis is 1880-2005. The data are analyzed with wavelet multiresolution technique. It has been found that the solar activity long term trend has a maximum around 1970, while air surface temperature series showed maximum (still rising) at 2005. There are differences in the long term trend for Northern and Southern hemispheres. These differences and the relation with solar activity are discussed in this work.

Download Full-text

Pacific Sea Levels Rising Very Slowly and Not Accelerating

Quaestiones Geographicae ◽

10.2478/quageo-2019-0007 ◽

2019 ◽

Vol 38 (1) ◽

pp. 179-184 ◽

Cited By ~ 1

Author(s):

Albert Parker ◽

Clifford Ollier

Keyword(s):

Pacific Ocean ◽

Sea Level ◽

Relative Rate ◽

Tide Gauges ◽

Sea Levels ◽

The Past ◽

The Pacific ◽

The Pacific Ocean ◽

Long Term Trend

AbstractOver the past decades, detailed surveys of the Pacific Ocean atoll islands show no sign of drowning because of accelerated sea-level rise. Data reveal that no atoll lost land area, 88.6% of islands were either stable or increased in area, and only 11.4% of islands contracted. The Pacific Atolls are not being inundated because the sea level is rising much less than was thought. The average relative rate of rise and acceleration of the 29 long-term-trend (LTT) tide gauges of Japan, Oceania and West Coast of North America, are both negative, −0.02139 mm yr−1and −0.00007 mm yr−2respectively. Since the start of the 1900s, the sea levels of the Pacific Ocean have been remarkably stable.

Download Full-text

Global warming and world soybean yields

Journal of Agrometeorology ◽

10.54386/jam.v23i4.139 ◽

2021 ◽

Vol 23 (4) ◽

pp. 367-374

Author(s):

CAI CHENG-ZHI ◽

LIAO CONG-JIAN ◽

XIAO DAN ◽

ZENG XIAO-SHAN ◽

ZUO JIN

Keyword(s):

Global Warming ◽

Positive Impact ◽

Arima Model ◽

Yield Potential ◽

Average Yield ◽

Turn Point ◽

Global Mean Temperature ◽

Long Term Trend ◽

Global Mean

The crop yield potential of world soybean from 2019 to 2028 has been projected using ARIMA model based on the yields from 1961 to 2018. Both annual global mean temperature and the yields of world soybean have been projected to rise during the ensuing decade 2019-2028. Projected average yields of world soybean varies from 2841 to 3276 kg ha-1 while 4324 to 4807 kg ha-1 in the case of top (national) yields of world soybean. Annual global mean temperatures may vary from 15.0 to 15.3oC and likely to exert positive impact on average yield (R squared = 0.80) while negative on top yield (R squared = 0.40) of world soybean. It may be concluded that for world soybean yields in 2019 to 2028, the opportunities for improving production should be dependent on both high and low-yielding countries as the yield remained between 30 and 70 per cent of potential limit i.e. in middle place around the turn-point of S-shaped curve in long-term trend partly affected by global warming.

Download Full-text