which says «Rayner (2006) demonstrated that, apart from the northwest of the country (where increased cloudiness associated
with the rainfall increase may play a role), the observed decline in pan evaporation was clearly related to declines in wind speed.
Not exact matches
«Human - induced climate change likely
increased Harvey's total
rainfall around Houston by at least 19 percent,
with a best estimate of 37 percent,» Michael Wehner, a co-author on an attribution study recently published in Geophysical Research Letters, said at the American Geophysical Union conference in December.
With the
rainfall in 2016 there was
increased scope to improve the health and resilience of aquatic ecosystems using a top up of Commonwealth environmental water within the Namoi River Valley.
Along
with Niagara County, Orleans and Monroe counties are also severely affected by the rising water levels along the shoreline, caused by an
increased amount of
rainfall this season along
with the controversial Plan 2014, an international agreement between the United States and Canada to regulate the water levels in Lake Ontario.
Increases in average temperature and
rainfall were associated in Zanzibar
with higher numbers of cholera cases within a definite time period.
«Our new data however, contrasts
with sub-Saharan Africa and demonstrates that the South African climate responded in the opposite direction,
with increasing rainfall, that can be associated
with a globally occurring southward shift of the tropical monsoon belt.»
Areas of
increased rainfall are shown in green,
with darker colors representing a greater
increase.
With more
rainfall, vegetation
increases, which then fuels rodent populations.
The scientists warn that climate change threatens these habitats, not only from rising temperatures
increasing peat decomposition, but also via altered
rainfall patterns —
with summer droughts drastically affecting the blanket bog hydrology.
Despite
rainfall decreasing by about 7 inches annually in the grain belt located in Western Australia since the 1970s, wheat production has
increased, and Eckard said that's because farmers have employed adaptations such as planting species
with shorter growing seasons, dry sowing seeds and tilling fields less often.
Warmer temperatures and
increased rainfall from the El Niño, along
with a devastated infrastructure and an influx of people into larger cities, likely caused the spike in Zika cases, Sorensen said.
The warmer temperatures and
increased rainfall from El Niño have previously been associated
with a higher likelihood of dengue outbreaks.
With no
increase in the region's
rainfall, the change «can only come from melting permafrost and glaciers.»
Overall, the chances of seeing a
rainfall event as intense as Harvey have roughly tripled - somewhere between 1.5 and five times more likely - since the 1900s and the intensity of such an event has
increased between 8 percent and 19 percent, according to the new study by researchers
with World Weather Attribution, an international coalition of scientists that objectively and quantitatively assesses the possible role of climate change in individual extreme weather events.
They face challenges from an
increasing population; land that's overfarmed and worn out; and climate change, bringing
with it worsening drought or
increased rainfall.
Dust that absorbed heat more efficiently was linked
with increases in monsoon
rainfall.
The new research confirms heavy
rainfall events are
increasing across the Gulf Coast region because of human interference
with the climate system.
The concentration of these magnetic minerals is enhanced
with increasing rainfall and can be used as a record of past precipitation history.
«Looking at weather and dengue incidents over longer periods, we found a similar strong link between how
increased rainfall and warmer temperatures resulting from the reoccurring el Niño phenomenon are associated
with elevated risks of dengue epidemics.
As well as this,
increased average temperatures and more erratic
rainfall could become be the «new normal» according to the report —
with significantly less
rainfall in the Mediterranean, Madagascar and the Cerrado - Pantanal in Argentina.
The results showed an
increasing relative risk of dengue
with increasing rainfall starting at above 50 mm per week.
Defining an extreme El Niño as one
with a massive reorganisation of
rainfall, where the usually dry regions in South America experience a tenfold
increase in rain, they found that climate models do agree after all.
It also showed the potential for putting existing water supplies on a roller coaster,
with a several - inch
increase expected in
rainfall in some years compared to the annual average, as well as some years of decrease over the same period.
For example, the levels of flavonols decreased in Red Baron onions from 2010, the year
with the lowest temperatures, but
increased in 2011 and 2014 when temperatures were higher and
rainfall was down.
Simultaneous exposure to toxic air pollutants can worsen allergic responses.24, 156,25,157 Extreme
rainfall and rising temperatures can also foster indoor air quality problems, including the growth of indoor fungi and molds,
with increases in respiratory and asthma - related conditions.27, 28,29,30 Asthma prevalence (the percentage of people who have ever been diagnosed
with asthma and still have asthma)
increased nationwide from 7.3 % in 2001 to 8.4 % in 2010.
Cory Cleveland, a UM professor of terrestrial ecosystem ecology, said that previous research in the wet tropics — where much of global forest productivity occurs — indicates that the
increased rainfall that may occur
with climate change would cause declines in plant growth.
Climate change intersects
with hurricanes by
increasing storm
rainfall, intensity, and surge.
The team found that warming had
increased the chances of such extreme
rainfall from a storm like Desmond in the region by about 40 percent,
with a full range of between 5 and 80 percent.
My research indicates that the Siberian peat moss, Arctic tundra, and methal hydrates (frozen methane at the bottom of the ocean) all have an excellent chance of melting and releasing their stored co2.Recent methane concentration figures also hit the news last week, and methane has
increased after a long time being steady.The forests of north america are drying out and are very susceptible to massive insect infestations and wildfires, and the massive die offs - 25 % of total forests, have begun.And, the most recent stories on the Amazon forecast that
with the change in
rainfall patterns one third of the Amazon will dry and turn to grassland, thereby creating a domino cascade effect for the rest of the Amazon.
With co2 levels risng faster now that the oceans have reached carrying capacity, the oceans having become also more acidic, and the looming threat of a North Atlanic current shutdown (note the recent terrible news on salinity upwelling levels off Greenland,) and the change in cold water upwellings, leading to far less biomass for the fish to feed upon, all lead to the conclusion we may not have to worry about NASA completing its inventory of near earth objects greater than 140 meters across by 2026 (Recent Benjamin Dean astronomy lecture here in San Francisco).
In the central United States, for example, observational data indicate that
rainfall increased, surface air temperature decreased, and surface humidity
increased during the summer over the course of the 20th century concurrently
with increases in both agricultural production and global GHG emissions.
Results of both regional climate model simulations and observational analyses suggest that much of the observed
rainfall increase — as well as the decrease in temperature and
increase in humidity — is attributable to agricultural intensification in the central United States,
with natural variability and GHG emissions playing secondary roles.
The nationwide trends of days
with one -, two -, and three - inch
rainfalls are also
increasing.
The number of days each year
with extreme
rainfall is, on average,
increasing in every region of the U.S.
For most purposes re public policy on climate flips, it is the demonstrated instability and the role played by freshening the North Atlantic that needs emphasis, along
with the melt water from Greenland adding to the effects of
increased rainfall in the very places where downwelling seems to be most efficiently conducted, the Larador and Greenland Seas.
«
With storm surge and heavy
rainfall increasing and climate and sea level rise, the system is just not working,» he said.
Global temperatures have
increased by ∼ 0.2 °C per decade over the last three decades16, possibly leading to an acceleration of the global water cycle
with more intense
rainfall events17, more severe and widespread droughts18 (despite drought frequencies appearing unchanged19) and regional humidity variations20.
Despite models predicting
increased rainfall with climate change, the region has collapsed into drought — a puzzle known as the East African paradox
In the first continent - wide study of the effects of fire on bird and mammal diversity in the African savanna environment, researchers have found that
increasing «pyrodiversity» boosts the variety of species of mammals by around 20 percent and of birds by 30 percent in savannas
with high
rainfall.
In the long term, changes in sea level were of minor importance to
rainfall patterns in north western Sumatra
With the end of the last Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an
increase in
rainfall around Indonesia and many other regions of the world..
Observational evidence indicates that the frequency of the heaviest
rainfall events has likely
increased within many land regions in general agreement
with model simulations that indicate that
rainfall in the heaviest events is likely to
increase in line
with atmospheric water vapour concentration.
The annual average
rainfall on Madeira Island is greater on the northern coast than on the southern coast and
increases with altitude; however Ponta Delgada generally has less
rainfall compared to other north - facing areas at the same altitude.
German summers tend to be warm and sunny
with temperatures falling between 20 °C and 30 °C although
rainfall increases slightly during June, July and August.
The probability of
rainfall increases slightly as the month progresses,
with the likelihood of
rainfall rising from 43 % on September 1st up to 49 % by September 30th.
Darwin's wet season lasts from November until April and while it may make some tourist activities less appealing due to the humidity and
increased rainfall, the region comes alive
with spectacular waterfalls and lush green rainforest.
[1] CO2 absorbs IR, is the main GHG, human emissions are
increasing its concentration in the atmosphere, raising temperatures globally; the second GHG, water vapor, exists in equilibrium
with water / ice, would precipitate out if not for the CO2, so acts as a feedback; since the oceans cover so much of the planet, water is a large positive feedback; melting snow and ice as the atmosphere warms decreases albedo, another positive feedback, biased toward the poles, which gives larger polar warming than the global average; decreasing the temperature gradient from the equator to the poles is reducing the driving forces for the jetstream; the jetstream's meanders are
increasing in amplitude and slowing, just like the lower Missippi River where its driving gradient decreases; the larger slower meanders
increase the amplitude and duration of blocking highs,
increasing drought and extreme temperatures — and 30,000 + Europeans and 5,000 plus Russians die, and the US corn crop, Russian wheat crop, and Aussie wildland fire protection fails — or extreme
rainfall floods the US, France, Pakistan, Thailand (driving up prices for disk drives — hows that for unexpected adverse impacts from AGW?)
The two new papers deal
with the attribution of a single flood event (Pall et al), and the attribution of
increased intensity of
rainfall across the Northern Hemisphere (Min et al).
Re # 37: Ray, the information I have suggests the mid-Holocene warming was mostly global,
with increased rainfall nearly everywhere (except western North America).
For most purposes re public policy on climate flips, it is the demonstrated instability and the role played by freshening the North Atlantic that needs emphasis, along
with the melt water from Greenland adding to the effects of
increased rainfall in the very places where downwelling seems to be most efficiently conducted, the Larador and Greenland Seas.
* Over the last decade or two,
rainfall has been markedly below average in our temperate south - west, south and east, and this along
with increased average temperatures has caused a major decrease in runoff from our catchments.
One shouldn't take this picture too literally as a prediction for any particular region, but it help one understand why the signal in
rainfall will be positive in some region and negative in others,
with the pattern tending to
increase gradients.