Sentences with phrase «cyclone maximum intensity»
[James P. Kossin, Kerry A. Emanuel and Gabriel A. Vecchi, The poleward migration of the location of tropical cyclone maximum intensity] Researchers looked at the global record of tropical cyclones since the 1970s.
https://www.scientificamerican.com/ Not exact matches
The researchers also cite previous research showing that over the past 30 years, the location where tropical cyclones reach their maximum intensity has shifted away from the equator and toward the poles.
According to the latest IPCC report, «tropical cyclone frequency is likely to decrease or remain unchanged over the 21st century, while intensity (i.e. maximum wind speed and rainfall rates) is likely to increase.»
This leaves tropical cyclone forecasters, who are ultimately responsible for recording TC tracks and intensities (i.e. maximum wind speeds), with a challenging problem.
No Category 5 was observed until 1920 or so; with poorer observations, could the maximum intensity of cyclones have been missed (seems like it)?
The extension of maximum cyclone intensity scales Greg Lade proposes has long been embodied in the Modified Beaufort Scale employed by cruising sailors the world over:
Under this scenario, peak precipitation rates are likely to increase by 25 % as a result of increases in maximum tropical cyclone wind intensities, which in turn cause higher storm surges.
When comparing a category 5 and a category 6 tropical cyclone of the same duration, given the difference in their intensity characterized by maximum wind speed, the kinetic energy of the category 6 storm of 165 to 185 knots would be 139 % — 175 % higher than the category 5 storm of 140 knots, Lin said.
DeMaria, M., and Kaplan, J., 1994: Sea Surface Temperature and the Maximum Intensity of Atlantic Tropical Cyclones.
The method is a way to estimate the maximum surface sustained wind over one minute which is the most significant data of a cyclone intensity.
RE # 150 The most important parameter is the maximum surface sustained wind when you are analysing the tropical cyclones intensity with the satellite pictures.
DeMaria and Kaplan (1994) show that only 20 % of the cyclones of the North Atlantic reach 80 % or more theirs potential maximum intensity, case in which the intensity reached by a cyclone is in balance with the temperature of surface of the ocean in the absence of dynamic stresses in the atmosphere.
Recent work (Kossin et al. 2014; see GFDL Research Highlight) indicates that the latitude at which the maximum intensity of tropical cyclones occurs has expanded poleward globally in recent decades, although the causes for this have not been firmly established and a significant change was not seen in the Atlantic basin statistics.
This is mainly because the area of maximum cyclone intensity has moved nearer the East Asian coastline, the researchers believe, boosting cyclone intensity at landfall — when the centre of the storm hits the coast — over easten China, Korea and Japan.
Following the general concepts outlined by Emanuel (1987), Holland (1997) has derived an alternative thermodynamic approach to estimate maximum potential intensity of tropical cyclones.