Observational evidence for an ocean heat pump induced by tropical cyclones

Nature ◽  
2007 ◽  
Vol 447 (7144) ◽  
pp. 577-580 ◽  
Author(s):  
Ryan L. Sriver ◽  
Matthew Huber
Keyword(s):  
Tropical Cyclones ◽  
Heat Pump ◽  
Observational Evidence

Observational evidence for a cross frontal heat pump in the Southern Ocean

2006 ◽  
Vol 33 (19) ◽  
Author(s):  
I. J. Ansorge ◽  
J. R. E. Lutjeharms ◽  
N. C. Swart ◽  
J. V. Durgadoo
Keyword(s):  
Southern Ocean ◽  
Heat Pump ◽  
Observational Evidence

scholarly journals Tropical cyclone motion in a changing climate

2020 ◽  
Vol 6 (17) ◽  
pp. eaaz7610 ◽  
Author(s):  
Gan Zhang ◽  
Hiroyuki Murakami ◽  
Thomas R. Knutson ◽  
Ryo Mizuta ◽  
Kohei Yoshida
Keyword(s):  
North America ◽  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
21St Century ◽  
Climate Models ◽  
Observational Evidence ◽  
Accumulated Damage ◽  
Ensemble Simulations ◽  
Poleward Shift ◽  
Anthropogenic Forcings

The locally accumulated damage by tropical cyclones (TCs) can intensify substantially when these cyclones move more slowly. While some observational evidence suggests that TC motion might have slowed significantly since the mid-20th century (1), the robustness of the observed trend and its relation to anthropogenic warming have not been firmly established (2–4). Using large-ensemble simulations that directly simulate TC activity, we show that future anthropogenic warming can lead to a robust slowing of TC motion, particularly in the midlatitudes. The slowdown there is related to a poleward shift of the midlatitude westerlies, which has been projected by various climate models. Although the model’s simulation of historical TC motion trends suggests that the attribution of the observed trends of TC motion to anthropogenic forcings remains uncertain, our findings suggest that 21st-century anthropogenic warming could decelerate TC motion near populated midlatitude regions in Asia and North America, potentially compounding future TC-related damages.

Peculiarity Parameters

1976 ◽  
Vol 32 ◽  
pp. 233-254
Author(s):  
H. M. Maitzen
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Theoretical Work ◽  
Observational Evidence ◽  
Rotator Model ◽  
Peculiar Behaviour ◽  
Field Spectrum ◽  
Oblique Rotator ◽  
Ap Stars ◽  
The Way

Ap stars are peculiar in many aspects. During this century astronomers have been trying to collect data about these and have found a confusing variety of peculiar behaviour even from star to star that Struve stated in 1942 that at least we know that these phenomena are not supernatural. A real push to start deeper theoretical work on Ap stars was given by an additional observational evidence, namely the discovery of magnetic fields on these stars by Babcock (1947). This originated the concept that magnetic fields are the cause for spectroscopic and photometric peculiarities. Great leaps for the astronomical mankind were the Oblique Rotator model by Stibbs (1950) and Deutsch (1954), which by the way provided mathematical tools for the later handling pulsar geometries, anti the discovery of phase coincidence of the extrema of magnetic field, spectrum and photometric variations (e.g. Jarzebowski, 1960).

The effect of aerosols on fog lifetime: observational evidence and model simulations

2020 ◽  
Author(s):  
Shuqi Yan ◽  
Bin Zhu ◽  
Tong Zhu ◽  
Chune Shi ◽  
Duanyang Liu ◽  
...  
Keyword(s):  
Observational Evidence ◽  
Model Simulations
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