The study, by British and American scientists, found that the observed peaks
in extreme rain events are about twice as high as what global climate simulations produce.
In extreme rain events, sediment and associated pollution have already been shown to flow out to sea in a pulse reaching as far out as 100 kilometers (62 miles) that can be seen from space, said Richmond.
Not exact matches
The researchers then looked at four key
extreme Australian
events — the Angry Summer 2012/13; the Coral Sea marine heatwave of 2016; the severe
rain event in Queensland
in 2010; and the 2006 drought
in southeast Australia — to model how often similar
events could occur under each scenario.
The researchers also looked at other
extreme events, like the southeast Australian drought of 2006 and the
rain events that led to widespread flooding
in Queensland
in 2010, to see whether they would occur more often as global temperatures increased.
Fluctuations
in extreme weather
events, such as heavy
rains and droughts, are affecting ecosystems
in unexpected ways — creating «winners and losers» among plant species that humans depend upon for food.
Since 2002, Denmark's challenge
in dealing with
extreme rain events has meant that many urban areas have been immersed
in water following heavy rainfall.
In late December to early January, southern California also experienced particularly
extreme rain events that induced flash floods and mudslides.
What goes up, must come down and, more and more, that water vapor is coming down
in extreme precipitation
events — defined
in North America as more than 100 millimeters of rainfall (or the equivalent
in snow or freezing
rain) falling
in 24 hours — according to new research also published February 17
in Nature that examines such
events in the Northern Hemisphere.
«When you take a very, very rare,
extreme rainfall
event like Hurricane Harvey, and you shift the distribution of
rain toward heavier amounts because of climate change, you get really big changes
in the probability of those rare
events,» Emanuel says.
While the models do not reliably track individual
extreme weather
events, they do reproduce the jet stream patterns and temperature scenarios that
in the real world lead to torrential
rain for days, weeks of broiling sun and absence of precipitation.
Many people are very worried, even scared, about abrupt climate change causing
extreme weather
events like torrential
rains with floods, droughts, high winds, etc. increasing
in severity, duration, frequency and impact.
The first thorough federal review of research on how global warming may affect
extreme climate
events in North America forecasts more drenching
rains, parching droughts (especially
in the Southwest), intense heat waves and stronger hurricanes if long - lived greenhouse gases continue building
in the atmosphere.
The tendency towards increased magnitude of
extreme rain events (documented
in the historical record and projected to continue
in downscaling analyses) will cause an increased risk of waterborne disease outbreaks
in the absence of infrastructure overhaul.
The report also predicts
extreme rain events could pollute lakes and streams due to nutrient run - off, noting that a heavy rainfall
in 2012 combined with a particularly warm year fueled a massive algae bloom
in Lake Auburn.
The 2010 weather shocks are associated with not only an increase
in the number of dengue cases but also with a decrease
in its incidence (particularly
in the presence of
extreme rain events).
This warming,
in turn, has melted ice, raised sea levels, and increased the frequency of
extreme weather
events: heat waves and heavy
rains, for example.
They estimate that there has been a (roughly) 18 - percent increase
in the intensity of
extreme rain events along this stretch of the Gulf Coast since the late 1800s.
[18] There has also been a 40 percent increase
in number of five - year
rain events,
extreme events that have only a 20 percent chance of occurring
in any given year.
Two recent
events contrast existing vulnerability to
extreme events: Hurricane Irene, which produced a broad swath of very heavy
rain (greater than five inches
in total and sometimes two to three inches per hour
in some locations) from southern Maryland to northern Vermont from August 27 to 29, 2011; and Hurricane Sandy, which caused massive coastal damage from storm surge and flooding along the Northeast coast from October 28 to 30, 2012.
He says average rainfall for Australia will decrease, but the
extreme weather
events will be on the rise, so while you might get less
rain over the year it will come
in the form of damaging storms and stronger winds which feel like so - called freak
events.
How human influence affected other types of
events such as droughts, heavy
rain events, and storms was less clear, indicating that natural variability likely played a much larger role
in these
extremes.
The Gulf Coast is historically prone to hurricanes, but climate change has contributed to a greater intensity of
extreme weather
events like hurricanes and an increase
in the amount of
rain produced by those
events.
The Polar bears stubbornly refuse to go extinct, indeed the buggers are thriving, the glaciers don't appear to be disappearing, sea levels have stayed boringly level, we haven't been subsumed by hordes of desperate climate refugees, the polar ice caps haven't melted, the Great Barrier Reef is still with us, we haven't fought any resource wars, oil hasn't run out, the seas insist on not getting acidic, the rainforest is still around, islands have not sunk under the sea, the ozone holes haven't got bigger, the world hasn't entered a new ice age, acid
rain appears to have fallen somewhere that can't quite be located, the Gulf Stream hasn't stopped,
extreme weather
events have been embarrassingly sparse
in recent years and guess what?
These include increased average land and ocean temperatures that lead to reduced snowpack levels, hydrological changes, and sea level rise; changing precipitation patterns that will create both drought and
extreme rain events; and increasing atmospheric CO2 that will contribute to ocean acidification, changes
in species composition, and increased risk of fires.
Because we may see really
extreme precipitation
events, with very powerful atmospheric rivers, that dump a ton of
rain and put us
in danger of devastating floods, we need to continue investing
in our flood management infrastructure.
This possibly explains the greater incidence of
extreme weather
events of all types noted
in the historic records compared to today, especially the prolonged periods of heavy
rain leading to flooding.
Is there enough freshwater
rain in your average
extreme event to change the salinity of large areas of the ocean?
It is clear that
in terms of weather, environmental health,
extreme events, snow,
rain drought and flood, the impact of a global average is trivial or less.
Here is an excerpt of the research paper, «When It
Rains It Pours», from Environment America, showing a statistically significant spike
in flash flooding and other
extreme precipitation
events since 1948: «Weather records show that storms with
extreme precipitation have become more frequent over the last 60 years.
Global warming is causing more intense
rain and snowstorms
in the United States, and making
extreme events such as the January 2016 snow storm that crippled most of the Mid-Atlantic and Northeast more likely.
In continental fluvial and coastal sections, changes in siliciclastic depositional facies reflect on increased frequency of high - energy events (e.g., extreme flooding), possibly from monsoon - like seasonal rains, and / or from unusually intense and / or sustained extra-tropical storm
In continental fluvial and coastal sections, changes
in siliciclastic depositional facies reflect on increased frequency of high - energy events (e.g., extreme flooding), possibly from monsoon - like seasonal rains, and / or from unusually intense and / or sustained extra-tropical storm
in siliciclastic depositional facies reflect on increased frequency of high - energy
events (e.g.,
extreme flooding), possibly from monsoon - like seasonal
rains, and / or from unusually intense and / or sustained extra-tropical storms.
what and how many
extreme rain events have their been
in the last 250 million years... yr a dckhead - and they made you a professor - wot out of a fckn cornflake packet?