If this can be achieved it should provide environmental benefits across the city and contribute to green infrastructure, particularly as climate change impacts like urban heating and
high rainfall events increase.
«The starting point for understanding risk of
high rainfall events is always a comprehensive analysis of previous records.
Not exact matches
Growing scarcity In addition to a growing scarcity of natural resources such as land, water and biodiversity «global agriculture will have to cope with the effects of climate change, notably
higher temperatures, greater
rainfall variability and more frequent extreme weather
events such as floods and droughts,» Diouf warned.
«Tasmania would have been somewhat shielded from the warmer, drier climate because of its
higher rainfall but it appears that this population was also affected by the El Niño
event before starting to recover.»
We are already seeing more intense storms and more heatwaves and
higher extreme
rainfall events, all at damaging levels so it can only get worse over the next 30 years imho.
We have fairly
high confidence that we observe the history of Heinrich
events (huge discharges of ice - rafted debris from the Laurentide ice sheet through Hudson Bay that are roughly coincident with large southern warming, southward shift of the intertropical convergence zone, extensive sea ice in the north Atlantic, reduced monsoonal
rainfall in at least some parts of Asia, and other changes), and also cold phases of the Dansgaard / Oeschger oscillations that lack Heinrich layers and are characterized by muted versions of the other climate anomalies I just mentioned.
Also I published a paper about a
rainfall event I found on March, 1960 in the Northeast of Brazil that reported in the core
rainfall near 20 times
higher than the typical value.
Storms and extreme
rainfall events have always happened, but with the added heat in the atmosphere and oceans due to greenhouse gas emissions, storms now occur with increasing accumulated energy and
higher moisture loading.
Lenderink, G., E. van Meijgaard en F. Selten (2009), Intense coastal
rainfall in the Netherlands in response to
high sea surface temperatures: analysis of the
event of August 2006 from the perspective of a changing climate; Clim.
There wasn't much impact on daily peak river levels, since this is about sustained rather than intense
rainfall, but 100 - year
highs in monthly averaged river levels became about 80 - year
events.
However, the report does say it is very likely that there will be more intense precipitation
events over many areas, and that peak winds and
rainfall rates from hurricanes are also likely to be
higher.
In particular, in the European Mediterranean region, increases in the frequency of extreme climate
events during specific crop development stages (e.g., heat stress during flowering period, rainy days during sowing time), together with
higher rainfall intensity and longer dry spells, are likely to reduce the yield of summer crops (e.g., sunflower).
«Climate change means that when we do have an
event like Harvey, the
rainfall amounts are likely to be
higher than they would have been otherwise,» UN spokeswoman Clare Nullis said at a conference.
Masters's column then delves into specific
events from around the globe: extremely low Arctic ice and rapid melting in Greenland; a radical shift from El Nino to La Nina; an Amazonian drought; a bizarre period for tropical cyclones and monsoons; floods, heat waves, record
rainfalls across the world; the strongest non-coastal storm in U.S. history; and a long list of countries that set record
high temperatures.
Such
high SSTs are associated with most ENSO
events, and it is probably SSTs in these regions, rather than the Pacific ENSO (Nicholson and Kim, 1997), that have the largest influence on east African
rainfall.
The storm fits the current pattern experienced in the warming world in which
higher temperatures are driving more intense
rainfall events.
Published in the journal Hydrological Sciences, the study looks at data sets from 1884 to 2013 and found an upward trend in reported flooding, with flood
events appearing more frequently towards the end of the 20th century, peaking in 2012 when annual
rainfall was the second
highest in over 100 years.
Moreover, rising global average temperatures lead to longer pollen seasons in many places and — when combined with stronger
rainfall events, flooding, and
higher humidity — create the perfect environment for mold to flourish.
Because of the substantial under - catch of precipitation gauges during solid precipitation, frequent light
rainfall events, or windy conditions, the true precipitation in the Arctic is more than 50 %
higher than the measured values (Førland and Hanssen - Bauer, 2000).