The seasons are defined by the relative incidence of rainfall, which, in turn, is determined by the movements of the monsoon air masses.
Ground water occurs in almost all geological formations, and its potential depends upon the nature of geological formations, geographical set up, incidence of rainfall, recharge, and other hydrogeological characters of the aquifer.
In Oregon and Florida, however, the incidence of extreme rainfall dropped slightly, though in Florida the drop was not statistically significant.
The unusual incidence of excessive rainfall over the study period suggests that further long-term studies are required to determine effects under the dry conditions which are more typical of this region.
The 53 page document, seen by the Guardian which includes a note saying "do not cite, quote or distribute" says that levels of greenhouse gases in the atmosphere are now greater than at any time in the last 800,000 years, based on ice cores and other evidence, and the incidences of extreme rainfall are increasing, with rainfall likely to increase in the north but to decrease in the subtropics.
Spatial variations in the incidence and amount of rainfall are reflected in their hydrological regimes.
Speed of headcut recession varies widely with the incidence and intensity of rainfall; but ultimately, when the whole profile has been worked along and the bed widened, the original even slope is restored, though at a lower level than before.
Studies throughout the world have linked changes in malaria incidence with patterns of rainfall, temperature and humidity [14], [15].
Is there reason to think that greater climate variability would result in a greater incidence of high-intensity rainfall and longer dry spells?
The predicted lower incidence of extremely high rainfall events could mean fewer opportunities for tree species to become established and a decline in plant diversity.
To assess the correlation between the incidence of melioidosis and rainfall, humidity, and temperature, we built regression models that used a quasi-Poisson distribution for the number of cases; Poisson and quasi-Poisson models are suitable for count data, of which the quasi-Poisson requires fewer assumptions.
