Sentences with phrase «hurricane activity»

It looks like there was a dramatic increase in hurricane activity in the 1996 - 2005 period (and to a lesser extent in the preceding 1986 - 1995 period).

However, prior bouts of increased hurricane activity due to natural variation do not rule out a role for global warming the current period of increased activity since the early 1980s.

The current study only looks at hurricane activity since 1970 — a relatively quiet period.

Recent research in this area suggests that there has been an increase in intense hurricane activity over the past 40 years.

The results show high hurricane activity also occurred at around 1000 AD, where levels approached that seen today.

There is evidence suggesting a human contribution to recent changes in hurricane activity as well as in storms outside the tropics, though a confident assessment will require further study.

Further investigation with more advanced models is needed for more confident projections of future hurricane activity in a warming climate.

According to the most recent evidence, there does not seem to be any sort of trend toward more hurricane activity and the signal for a possible increase in intensity is weak.

Why does hurricane activity vary from decade to decade?

The other factors affected hurricane activity on short time scales only.

The following table shows there have been periods of greater hurricane activity before atmospheric CO2 increased by any significant amount.

We have been told that climate change would cause more powerful hurricanes and yet we have had a decade of lower hurricane activity and no change in tornado activity.

Fortunately, however, several climate patterns are known which strongly control the overall seasonal hurricane activity, and they often last for entire seasons, sometimes for decades at a time.

Not only has hurricane activity not increased across the wide areas examined, the activity has actually been on a slow declining trend.

Direct model simulations of hurricane activity under climate change scenarios offer another perspective on the problem.

That study also showed the recent increase in hurricane activity is nothing new.

Unfortunately, it is difficult to compare recent hurricane activity to that of earlier periods, because the technology for hurricane detection has dramatically improved in recent years.

Scientists are continuing to refine our understanding of how global warming affects hurricane activity.

Even if they are wrong, existing reactors were built (along with most coastal developments) during a period of historically low hurricane activity and a return to baseline seems likely.

As we have also pointed out in previous posts, we can indeed draw some important conclusions about the links between hurricane activity and global warming in a statistical sense.

Their study also shows that the tropical multi-decadal signal is causing the observed multi-decadal fluctuations in Atlantic hurricane activity since 1950.»

Indeed, the climatological peak for hurricane activity in the Atlantic Ocean is September 10, as you can see in this helpful image from the National Hurricane Center:

One study found that warming didn't seem to play a role in the increased winter storm activity over the U.S., but, in another study by the same researchers, they did find that it did up the odds of the unusually high hurricane activity around Hawaii.

In addition to enhanced vertical wind shear, El Niño suppresses Atlantic hurricane activity by increasing the amount of sinking motion and increasing the atmospheric stability.

«The environmental changes found here do not suggest a strong increase in tropical Atlantic hurricane activity during the 21st century,» said Brian Soden, Rosenstiel School associate professor of meteorology and physical oceanography and the paper's co-author.

So trying to draw inferences about global hurricane activity from these statistics just doesnâ t work.

By Gray's very clearly articulated reasoning, there should have been a downturn, not the observed upturn in major Atlantic hurricane activity over the past several decades (in the absence of other — including anthropogenic — influences on tropical Atlantic climate) if Bryden et al.'s results are correct.

This year saw above - normal hurricane activity in the region, including the strongest storm ever directly measured in the Western Hemisphere.

The study looked at historical hurricane activity across the entire tropical Atlantic basin to see if the current peak in storm numbers is... Read more

The scientists relied on the same model the National Weather Service uses to predict hurricane activity for a given season.

«Their statistical projection is totally unconvincing, since it is based on a data set that incompletely represents US landfalling hurricane activity since 1923.»

In July, the hurricane set several records for early season hurricane activity, becoming both the earliest formation of a fourth tropical cyclone and the strongest Atlantic hurricane ever to form before August, according to available records.

«It is difficult to use climate models to study hurricane activity, and so studies such as ours, which produced a record of storms under different climate conditions, are important for our understanding of future storm activity,» Denniston said.

In the Northern Hemisphere, the season runs from June 1 to Nov. 30, while the Southern Hemisphere generally experiences hurricane activity from January to March.

«The interval when Columbus is exploring the New World is this interval where we're seeing increased hurricane activity along the eastern seaboard of the U.S.,» Jeffrey Donnelly, a Woods Hole Oceanographic Institution palaeoclimatologist, said.