Islanders have expressed their concerns about the impact of climate change and the visible changes that are already occurring: increased erosion, strong winds, land accretion,
increasing storm frequency and rougher seas of a sort that elders have never seen or heard of before.
Climate impacts that could affect the DOD's nearly 7,600 sites worldwide include hotter temperatures, rising sea levels and
increasing storm frequency and intensity
Not exact matches
We know that
storms will continue to come — extreme weather events are
increasing in
frequency all over the world.
The report found, among other things, that 43 of the lower 48 U.S. states have set at least one monthly heat record since 2010, sea levels are expected to rise between one and four feet by the end of this century, winter
storms have
increased in intensity and
frequency, and the past decade was warmer than every previous decade in every part of the country.
The MetroWest region of Massachusetts is experiencing climate change through more intense
storm events, punctuated by
increased frequency of droughts, which are only expected to worsen.
«We conclude that coastal communities are facing a looming crisis due to climate change related sea - level rise, one that will manifest itself as
increased frequency of Sandy - like inundation disasters in the coming decades along the mid-Atlantic and elsewhere, from
storms with less intensity and lower
storm surge than Sandy,» Sweet said.
Large power outages are expected to become more frequent as the result of a changing climate, where the
frequency and intensity of extreme weather events is
increasing, as well as geomagnetic
storms and attacks on grid infrastructure.
But in terms of the
frequency of these kinds of
storms, we have strong evidence that
storm surge will
increase (on average) with sea level rise.
Joint research from the Monash branch of the Australian Research Council Centre of Excellence for Climate System Science (ARCCSS) and NASA published in Nature found even though other types of rainfall has decreased in
frequency and the total number of thunderstorms remained the same, the
increase in big
storms had elevated total rainfall.
Although average summer
storm activity decreases, the most intense winter
storms are projected to
increase in
frequency under continued global warming.
Higher sea levels will
increase the extent and
frequency of flooding from such
storms.
«As the variability and intensity of
storms increase in the world, we need to reevaluate what the
frequency of these major
storms could be,» Feinberg said.
Floods due to sea - level rise,
storm surges and heavy rain will
increase in
frequency.
To understand the
increased frequency in tornado outbreaks, the researchers looked at two factors: convective available potential energy, or CAPE, and
storm relative helicity, which is a measure of vertical wind shear.
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.
Mid-latitude winter
storms have
increased in both intensity and
frequency nationally since 1950.
Heat waves are hotter, heavy rain events are heavier, and winter
storms have
increased in both
frequency and intensity.
Also, unlike the bulk of climate models to date, the
increase in odds of extreme
storms found in the study stems both from a shift toward more intense hurricanes as well as an overall
increase in hurricane
frequency.
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.
Confidence in the latter is not related to TC intensity or
frequency; it comes from the probable
increase in heavy rain events and the inevitable rise in sea level that will make it easier for
storm surges to go inland.
•
increases in malnutrition and consequent disorders, with implications for child growth and development; •
increased deaths, disease and injury due to heat waves, floods,
storms, fires and droughts; • the
increased burden of diarrheal disease; • the
increased frequency of cardio - respiratory diseases due to higher concentrations of ground - level ozone related to climate change; and, • the altered spatial distribution of some infectious disease vectors.
Increasing rates of sea - level rise and intensity and
frequency of coastal
storms and hurricanes over the next decades will
increase threats to shorelines, wetlands, and coastal development.
The assessment considered the impacts of several key drivers of climate change: sea level change; alterations in precipitation patterns and subsequent delivery of freshwater, nutrients, and sediment;
increased ocean temperature; alterations in circulation patterns; changes in
frequency and intensity of coastal
storms; and
increased levels of atmospheric CO2.
Climate models suggest that human activities, specifically the emission of atmospheric greenhouse gases, may lead to
increases in the
frequency of severe
storms in certain regions of the Northern Hemisphere.
This rhythm in
storm frequency may explain some of the recently observed
increases in extreme precipitation events.
BTW, the prediction is for
storm intensity to
increase due to higher sea surface temperatures (a rather obvious conclusion),
frequency is debated.
At the end of their comment # 27 the authors state «Turning to very important question of the
frequency of the strongest
storms, it is entirely possible that a large
increase in category 4 - 5
storms will result from
increasing greenhouse gases, despite an overall reduction in hurricane numbers.
My geography text says they've about doubled in
frequency since 1990 and that the
frequency of the higher intensity
storms has also
increased significantly.
Since this is the case, that the ENSO cycle is so much shorter, there is no relation between the two phenomena (ENSO and GW), with the exception that GW may trigger a change in the nature of ENSO,
increasing its
frequency (i.e. reducing the time it takes to complete a cycle) and / or
increasing its intensity (putting people in affected areas at risk of experiencing worse famine - causing droughts, flooding, and
storms).
In the paper I state that there is no evidence that
storm frequency, intensity, or duration
increased in the 20th century.
Some researchers have found that the
frequency of mid-latitude
storms may have dropped slightly over the European continent, but there have also been indications that the
frequency of
storms has
increased elsewhere (the North Atlantic
storm track — Iceland / Norwegian sea).
The
frequency of the most intense
storms will more likely than not
increase in some basins.
Even without changing intensity or
frequency of
storms, the impact of associated
storm surges
increases with
increasing sea levels.
In light of these recent papers I would change the language to state «the evidence does not consistently support an
increase in the
frequency or intensity of major
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
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 ce
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
increase in the
frequency or intensity of tropical
storms or floods over the past ce
storms 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.
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).
Eventually, if not right now, we would expect to see
increase in
storm intensity and perhaps
frequency in a globally warming world, all things being equal... which they are not, since even weathermen can't well predict next week's weather due to some butterfly flapping it's wings in Japan gumming up the wind system.
I can not envision physically that the hydrologic cycle can intensify and there not be an
increase in
storm frequency and intensity of floods and droughts.
I wonder how much certainty there is that global warming is NOT causing
increased intensity (perhaps also
frequency) of
storms.
In New Orleans, geophysical vulnerability is characterized by its below - sea level, bowl - shaped location, its accelerating subsidence, rising sea level,
storm surges, and possible
increased frequency of larger hurricanes from climate change.
--
Increases in intensity and
frequency of heat waves and extreme precipitation events (a category in which it includes droughts, floods, hurricanes and major
storms)
«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.»
They include soaring temperatures, declining late - season snowpack, northward - shifted winter
storm tracks,
increasing precipitation intensity, the worst drought since measurements began, steep declines in Colorado River reservoir storage, widespread vegetation mortality, and sharp
increases in the
frequency of large wildfires.
Climate models suggest
increasing frequency of, and greater damage from, violent
storms is the result of global cooling, not warming... and so on and so forth.
From the evidence I have seen, there seems to be decent evidence that
storm power has
increased but not
frequency, which of course varies by region of the world.
Tornadoes, twisting winds that descend from thunderheads, and derechos, winds that race ahead of a straight line of
storms, are just two varieties of extreme weather events whose
frequency and violence are on the
increase.
India could witness an
increase in the severity and
frequency of dust
storms and thunderstorms due to rising global temperatures, experts say.
Confidence is medium that winter
storms have
increased slightly in
frequency and intensity, and that their tracks have shifted northward over the U.S.