scholarly journals Global tropical cyclone activity to decrease with climate change

Eos ◽  
2013 ◽  
Vol 94 (2) ◽  
pp. 28-28
Author(s):  
Colin Schultz
Keyword(s):  
Climate Change ◽  
Tropical Cyclone ◽  
Tropical Cyclone Activity ◽  
Cyclone Activity

scholarly journals Coastal flooding will disproportionately impact people on river deltas

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Douglas A. Edmonds ◽  
Rebecca L. Caldwell ◽  
Eduardo S. Brondizio ◽  
Sacha M. O. Siani
Keyword(s):  
Climate Change ◽  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Coastal Flooding ◽  
Tropical Cyclone Activity ◽  
Cyclone Activity ◽  
Know How ◽  
Developed Economies ◽  
River Deltas ◽  
Global Population

Abstract Climate change is intensifying tropical cyclones, accelerating sea-level rise, and increasing coastal flooding. River deltas are especially vulnerable to flooding because of their low elevations and densely populated cities. Yet, we do not know how many people live on deltas and their exposure to flooding. Using a new global dataset, we show that 339 million people lived on river deltas in 2017 and 89% of those people live in the same latitudinal zone as most tropical cyclone activity. We calculate that 41% (31 million) of the global population exposed to tropical cyclone flooding live on deltas, with 92% (28 million) in developing or least developed economies. Furthermore, 80% (25 million) live on sediment-starved deltas, which cannot naturally mitigate flooding through sediment deposition. Given that coastal flooding will only worsen, we must reframe this problem as one that will disproportionately impact people on river deltas, particularly in developing and least-developed economies.

Future projections in tropical cyclone activity over multiple CORDEX domains from RegCM4 CORDEX-CORE simulations

2021 ◽  
Author(s):  
José Abraham Torres-Alavez ◽  
Russell Glazer ◽  
Filippo Giorgi ◽  
Erika Coppola ◽  
Xuejie Gao ◽  
...  
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclone Activity ◽  
Cyclone Activity ◽  
Future Projections

scholarly journals Change in Tropical Cyclone Activity during the Break of the Western North Pacific Summer Monsoon in Early August

2016 ◽  
Vol 29 (7) ◽  
pp. 2457-2469 ◽  
Author(s):  
Ke Xu ◽  
Riyu Lu
Keyword(s):  
Tropical Cyclone ◽  
Summer Monsoon ◽  
North Pacific ◽  
Western North Pacific ◽  
Cyclonic Circulation ◽  
Tropical Cyclone Activity ◽  
Upward Motion ◽  
Mariana Islands ◽  
Cyclone Activity

Abstract The modulation of tropical cyclone (TC) activity by the western North Pacific (WNP) monsoon break is investigated by analyzing the subseasonal evolution of TCs and corresponding circulations, based on 65 years of data from 1950 to 2014. The monsoon break has been identified as occurring over the WNP in early August. The present results show that TC occurrence decreases (increases) remarkably to the east of the Mariana Islands (southeast of Japan) during the monsoon break, which is closely related to local anomalous midtropospheric downward (upward) motion and lower-tropospheric anticyclonic (cyclonic) circulation, in comparison with the previous and subsequent convective periods in late July and mid-August. These changes of TC activity and the corresponding circulation during the monsoon break are more significant in typical monsoon break years when the monsoon break phenomenon is predominant. The reverse changes of TC activity to the east of the Mariana Islands and to the southeast of Japan during the monsoon break are closely associated with the out-of-phase subseasonal evolutions over these two regions from late July to mid-August, which are both contributed to greatly by 10–25-day oscillations. Finally, the roles of midlatitude and tropical disturbances on 10–25-day oscillations are also discussed.

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