"Precipitation increases" means that the amount of water falling from the atmosphere onto the Earth's surface, such as rain, snow, or hail, is becoming greater.
Full definition
As the number of days with
extreme precipitation increases, the risk for intense and damaging floods is also expected to increase throughout much of the country.
The estimates suggest that flood losses are related to exposure because the explanatory power of population and wealth is 82 %, while
adding precipitation increases the explanatory power to 89 %.
Climate model simulations for the 21st century are consistent in projecting
precipitation increases in high latitudes (very likely) and parts of the tropics, and decreases in some subtropical and lower mid-latitude regions (likely).
They found that the mean and standard deviation of flood damage are projected to increase by more than 140 % if the mean and standard deviation of
annual precipitation increase by 13.5 %.
Because the models predict little
average precipitation increase nationwide over this period, the product of CAPE and precipitation gives about a 12 percent rise in cloud - to - ground lightning strikes per degree in the contiguous U.S., or a roughly 50 percent increase by 2100 if Earth sees the expected 4 - degree Celsius increase (7 degrees Fahrenheit) in temperature.
Because the models predict little average
precipitation increase nationwide over this period, the product of CAPE and precipitation gives about a 12 percent rise in cloud - to - ground lightning strikes per degree in the contiguous U.S., or a roughly 50 percent increase by 2100 if Earth sees the expected 4 - degree Celsius increase (7 degrees Fahrenheit) in temperature.
In fact, the lower climate sensitivity is, the faster must
total precipitation increase with GMST, or the atmosphere would heat up too much.
The green and blue colours, therefore, represent the minimum (dark blue) and maximum (all green and blue colours) extent of regions projected to experience temperature and
precipitation increases above the limits set earlier.
While global evaporation and precipitation are reduced in response to surface radiative forcing by dust,
precipitation increases locally over desert regions, so that dust emission can act as a negative feedback to desertification.
Agricultural growing seasons warm at a pace slightly behind the annual temperature trends in most regions, while
precipitation increases slightly ahead of the annual rate.
Although the current study is limited by the fact that the authors looked only at runoff and held other variables such as land cover constant, the results could be relevant to other regions that are likely to
experience precipitation increases in a warming world.
Table 2: List of Impacts Due to Changes in
Precipitation Increasing Frequency of Severe Weather Events and Changes to Storm Tracks Warmer temperatures could create conditions for more severe weather events.
«In line with previous results, we find that on average the surface air temperature variability decreases at higher latitudes, particularly over the ocean along the sea ice margins, while variability in
precipitation increases on average, particularly at high latitudes.
Climate change projections predict increases in precipitation and air temperature for northern Europe, with the greatest temperature increase during winter and the
greatest precipitation increase from April to September.
While there is uncertainty about the amount of precipitation in the future, he said, «even
if precipitation increases, the increase in temperature is great enough to cause earlier melt to occur,» Diffenbaugh said.
Most GCM's predict that, while some parts of the tropics get drier in response to anthropogenic greenhouse gas increases, the net
tropical precipitation increases.