Sentences with phrase «tropical storm frequency»

For example, our 2015 study projects an increase in tropical storm frequency in the Northeast Pacific and near Hawaii, and a decrease in category 4 - 5 storm days over much of the southern hemisphere basins and parts of the northwest Pacific basin — both at variance with the global - scale projected changes.

Additionally, changes in anthropogenic sulfate aerosol forcing have been proposed as the dominant cause of the AMV and the historical multidecadal variations in Atlantic tropical storm frequency, based on some model simulations including aerosol indirect effects.

David Campbell, Boiling Springs, N.C. Stormier weather I was confused by the conclusion that «simulations suggest that the climate effects of greenhouse gases will again reduce tropical storm frequency later this century» in «Cleaner air may bring on storms &

Not exact matches

This is due to the large natural variability in the frequency and intensity of tropical storms (e.g., due to the El Niño Southern Oscillation), which complicate the detection of long - term trends and their attribution to increasing greenhouse gases.

As the climate changes, tropical cyclones are expected to produce more rain and the frequency of the highest intensity storms is projected to increase even though the overall number of storms may remain unchanged or perhaps even decrease.

Included in resource are the following topics: Natural causes of climate change Evidence of climate change Global Warming Causes and effects of climate change Global atmospheric circulation Tropical storms causes, characteristics, location and frequency Causes of EL Nino Effects of the Big Dry Adaptation to drought At the end of the resources are pupil booklets.

(1) Lowman had already created hurricane radar paintings once before with Hurricane Katrina, and with climate change expected to accelerate the frequency and intensity of tropical storms, he has created perhaps his most cynical body of work yet.

Yet the frequency of large El Ninos and large La Ninas means everything in terms of the likelihood of very active Atlantic tropical storm seasons.

These studies, however, have focused on the frequency of all tropical storms and hurricanes (lumping the weak ones in with the strong ones) rather than a measure of changes in the intensity of the storms.

«Century of Data Shows Intensification of Water Cycle but No Increase in Storms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past ceStorms or Floods Released: 3/15/2006 12:13:21 PM» (excerpt) A review of the findings from more than 100 peer - reviewed studies shows that although many aspects of the global water cycle have intensified, including precipitation and evaporation, this trend has not consistently resulted in an increase in the frequency or intensity of tropical storms or floods over the past cestorms or floods over the past century.

-- How about THIS: «Thus the weight of evidence points to increasing potential intensity in the region where Pam developed, and consistent with this, increasing intensity of the highest category storms based on satellite - derived measurements» — How about THIS: «All of this is consistent with the strengthening consensus that the frequency of high category tropical cyclones should increase as the planet warms (Knutson et al., 2010).»

Some people have suggested that if SST (& GW) is increasing hurricane intensity, it seems logical it would also be increasing hurricane frequency (all other things being equal — which I suppose they may not be), since the storms are moving up in category: 1 to 2, 2 to 3, etc., then some «tropical storms» would also be moving up to Cat.

The largest cyclones are most affected by warmer conditions and we detect a statistically significant trend in the frequency of large surge events (roughly corresponding to tropical storm size) since 1923.

I thought of some way in which you could get more intensity, without increased frequency: Perhaps hurricanes & tropical storms are clubbing together into more intense storms (what would have been 2 hurricanes given lower SST, become 1 more intense hurricane, given the higher SST).

But focusing the debate within societies on overall frequency or intensity or degrees of this or that in this or that geographical basin as a way to evaluate the relationship between climate change and tropical storms is confusing the issue.

«Future projections based on theory and high - resolution dynamical models consistently suggest that greenhouse warming will cause the globally averaged intensity of tropical cyclones to shift towards stronger storms,» Knutson et al. (2010); Grinsted et al. (2013) projected «a twofold to sevenfold increase in the frequency of Katrina magnitude events for a 1 °C rise in global temperature.»

Microwave radars of the European Remote - Sensing Satellites (ERS), radiometers of the Defense Meteorological Satellite Program (DMSP) and the dual - frequency altimeter TOPEX - POSEIDON have shown their ability to improve the description and location of storms, especially in the case of tropical cyclones for which very few traditional observations exist.

This is a lowball estimate, but even at this level you're going to see increased coastal erosion, and much more damaging storm surges — even at the present frequency and severity of tropical cyclones.

Like many other conference speakers and attendees, Secretary - General Ban cited the recent droughts, floods, and Tropical Storm Sandy as proof of the dire consequences of man - made global warming, even though many studies and scientists (including scientists who usually fall into the climate alarmist category) have stated that there is no evidence to support claims that «extreme weather» has been increasing in frequency and / or magnitude in recent years, or that extreme events (hurricanes, droughts, heat waves, etc.) have anything to do with increased CO2 levels.

The IPCC notes in its most recent scientific assessment that there are «[n] o robust trends in annual numbers of tropical storms, hurricanes and major hurricanes counts have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

The Intergovernmental Panel on Climate Change reported in its most recent scientific assessment that «[n] o robust trends in annual numbers of tropical storms, hurricanes, and major hurricanes... have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed trends in global tropical cyclone frequency.»

Nonetheless, an upward trend in Atlantic and West Pacific tropical cyclone power dissipation in the past few decades — based on the frequency, duration, and intensity of observed storms — is well correlated with increases in sea surface temperature [16].

Human - induced changes in the IPWP have important implications for understanding and projecting related changes in monsoonal rainfall, and frequency or intensity of tropical storms, which have profound socioeconomic consequences.

It will also be interesting to see plaintiffs explain this graph of accumulated cyclone energy in the light of their theory that man - made global warming is increasing hurricane strengths and frequencies (ACE is a sort of integration of hurricane and tropical storm strengths over time).

Over the past 50 years there has been a strong statistical connection between tropical Atlantic sea surface temperatures and Atlantic hurricane activity as measured by the Power Dissipation Index (which combines storm intensity, duration, and frequency).

It may well be that the FREQUENCY of tropical storms won't change much.

From an observational perspective then, key issues are the tropical storm formation regions, the frequency, intensity, duration and tracks of tropical storms, and associated precipitation.

Where could I find more information — preferably in a synopsis (as in a textbook)-- of expected changes in the global circulation and tropical, extratropical, and mesoscale storm frequency, structure, evolution, timing, and tracks (I've found data sources and annual maps (http://data.giss.nasa.gov/stormtracks/) but I'm not sure I'd get around to deriving any trends from that any time soon)... and also, maps of trends or expectations of trends in surface pressure and winds?

- and data on the frequency of North Atlantic tropical storms going back to 1851 show strong minima of hurricane activity in the periods centered around 1850, 1915, and 1980 and maxima centered around 1875, 1950, and at the end of the time series (Elsner et al. 1999)-- these variations are approximately in phase with the AMO (Knight et al. 2005).»

However, I would go much farther than what Roger Pielke advocates because the possibility of a casual relationship between storm frequency and anthropic climate change has not been falsified, and the possibility of stronger tropical cyclones appears to have increasing evidence in its favor.

«There is no compelling evidence to indicate that the characteristics of tropical and extratropical storms have changed... Owing to incomplete data and limited and conflicting analyses, it is uncertain as to whether there have been any long - term and large - scale increases in the intensity and frequency of extra-tropical cyclones in the Northern Hemisphere.

A recent, peer - reviewed study published by several authors in the Proceedings of the National Academy of Science concludes: «The largest cyclones are most affected by warmer conditions and we detect a statistically significant trend in the frequency of large surge events (roughly corresponding to tropical storm size) since 1923.»

An implication of the GFDL studies is that if the frequency of tropical cyclones remains the same over the coming century, a greenhouse - gas induced warming may lead to an increasing risk globally in the occurrence of highly destructive category - 5 storms.

However, to gain insight on the influence of climate change on Atlantic tropical storm and hurricane frequency, we must focus on longer (> 100 yr) records of Atlantic hurricane activity since very strong year - to - year and decade - to - decade variability appears in records of Atlantic tropical cyclones.

For the north - west sub-tropical Pacific basin, Chan and Shi (1996) found that the frequency of typhoons and the total number of tropical storms and typhoons have been more variable since about 1980.

The IPCC AR4 report (2007) says regarding global tropical storms: «There is no clear trend in the annual numbers [i.e. frequency] of tropical cyclones.»

Others, such as tropical storms, occur with some frequency and can cause catastrophic lossess.