Sentences with phrase «hurricane activity since»

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.

GFDL researchers have developed a regional dynamical downscaling model for Atlantic hurricanes and tested it by comparing with observed hurricane activity since 1980.

There has been a substantial increase in most measures of Atlantic hurricane activity since the early 1980s, the period during which high - quality satellite data are available.13, 14,15,16,17 These include measures of intensity, frequency, and duration as well as the number of strongest (Category 4 and 5) storms.

There has been a substantial increase in most measures of Atlantic hurricane activity since the early 1980s, the period during which high quality satellite data are available.20, 21,22 These include measures of intensity, frequency, and duration as well as the number of strongest (Category 4 and 5) storms.

The study contradicts recent claims that natural cycles are responsible for the upturn in Atlantic hurricane activity since 1995.

«The climate patterns responsible for the expected above - normal 2007 hurricane season continue to be the ongoing multi-decadal signal (the set of oceanic and atmospheric conditions that have spawned increased Atlantic hurricane activity since 1995), warmer - than - normal sea surface temperatures in key areas of the Atlantic Ocean and Caribbean Sea, and the El Nino / La Nina cycle»

NOAA research shows that the tropical multi-decadal signal is causing the increased Atlantic hurricane activity since 1995, and is not related to greenhouse warming.»

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

Not exact matches

«In their discussion of the economic situation and the outlook, meeting participants agreed that information received since the FOMC met in September indicated that the labor market had continued to strengthen and that economic activity had been rising at a solid rate despite hurricane - related disruptions.»

While no specific weather event like this can be directly attributed to global warming, it does fit the pattern of increased hurricane activity overall since the 1970s, coinciding with a rise in sea temperature.

Since high hurricane activity is associated with periods of high sst in the tropics which we have now and did in the 1920 ′ and 1930's 2.

If we're considering the risk of hurricane damages, and not just overall basin activity, then the effect of increased vertical wind shear would seem to be (at least) twofold — it not only reduces potential intensity, but it also influences the steering of hurricanes (since hurricanes are basically steered by the background flow plus a beta drift).

Although they do not attempt to calculate the proportion of total Atlantic activity, they were able reconstruct a remarkably accurate picture of the hurricanes that have passed over or within 400 km of the site in southern Georgia since 1770.

Is the rather definitive statement that «The increased activity since 1995 is due to natural fluctuations (and) cycles of hurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming» at all supportable?

Since a primary driver of the Earth's climate from year to year is the El Nino Southern Oscillation (ENSO) acts on time scales on the order of 2 - 7 years, and the fact that the bulk of the Southern Hemisphere hurricane season occurs from October — March, a reasonable interpretation of global hurricane activity requires a better metric than simply calendar year totals.

If so, this is one way in which global warming may end up causing a decrease in Atlantic hurricane activity over the coming decades, since the increased wind shear over the Atlantic during El Niño events greatly reduces the number and intensity of these storms.»

The AMO appears to be transitioning towards its cool phase now coinciding with below average hurricane activity in the Atlantic since 2013.

Global tropical cyclone activity is near historic lows, the frequency of major U.S. hurricanes has declined, and big tornados have dramatically declined since the 1970s.

Landsea said he was gravely concerned that since Trenberth had already «come to the conclusion that global warming has altered hurricane activity,» and since Trenberth would be overseeing the hurricane section in the Climate Bible, «it may not be possible for the IPCC process to proceed objectively.»

But since the mid-1990s, hurricane activity in the Atlantic has increased in both frequency and severity, according to data compiled by the National Oceanic and Atmospheric Administration (NOAA).

Gray has been gazing into the crystal ball since 1984 to divine future hurricane activity with remarkable accuracy.

Scientists have dubbed this natural cycle the «Atlantic Multidecadal Oscillation,» or AMO, and since ocean temperatures have been on the upswing for the past decade, so too has hurricane activity.

Since this index represents a continuous spectrum of both system duration and intensity, it does not suffer as much from the discontinuities inherent in more widely used measures of activity such as the number of tropical storms, hurricanes or major hurricanes.

«The increased activity since 1995 is due to natural fluctuations (and) cycles of hurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming,» he testified.

Max Mayfield, director of the National Hurricane Center in Miami: «The increased activity since 1995 is due to natural fluctuations (and) cycles of hurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming,» he tHurricane Center in Miami: «The increased activity since 1995 is due to natural fluctuations (and) cycles of hurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming,» he thurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming,» he testified.

If greenhouse warming causes a substantial increase in hurricane activity, then the century scale increase in global and tropical Atlantic SSTs since the late 1800s should have been accompanied by a long - term rising trend in measures of Atlantic hurricanes activity.

If greenhouse warming causes a substantial increase in Atlantic hurricane activity, then the century scale increase in tropical Atlantic SSTs since the late 1800s should have produced a long - term rise in measures of Atlantic hurricanes activity, similar to that seen for global temperature, for example.

On average, the U.S. has been hit by two hurricanes per season since an active period of tropical activity began in 1995, said Gerry Bell, NOAA's lead hurricane seasonal forecaster, in an interview.

While hurricanes are a natural part of our climate system, recent research suggests that there has been an increase in intense hurricane activity in the North Atlantic since the 1970s.

Given the recent and upcoming storm activity, it's not surprising that the National Oceanic and Atmospheric Administration (NOAA) predicts the 2017 hurricane season could be the strongest since 2010.

Economic activity has picked up since Hurricane Harvey and job growth is expected throughout 2018 with gains in sectors including manufacturing, real estate, arts and entertainment, and healthcare.