For example, the «long rains» in recent years have
seen declining rainfall but models project increasing amounts of «long rains» rainfall in the future.
Not exact matches
This lower - intensity
rainfall implies less runoff over the surface, which means we should
see a
decline in runoff over a whole basin.
Indeed, that region has
seen a general increase in
rainfall over the long term during most seasons (certainly no material
decline).
Snowfall varies across the region, comprising less than 10 % of total precipitation in the south, to more than half in the north, with as much as two inches of water available in the snowpack at the beginning of spring melt in the northern reaches of the river basins.81 When this amount of snowmelt is combined with heavy
rainfall, the resulting flooding can be widespread and catastrophic (
see «Cedar Rapids: A Tale of Vulnerability and Response»).82 Historical observations indicate
declines in the frequency of high magnitude snowfall years over much of the Midwest, 83 but an increase in lake effect snowfall.61 These divergent trends and their inverse relationships with air temperatures make overall projections of regional impacts of the associated snowmelt extremely difficult.
In 2002 for example, a break in the monsoon rains
saw July receiving only about 50 % of its normal
rainfall, leading to cuts in agricultural output and
declining GDP.
=============================================== Instead of cutting and pasting slabs of words go to the BOM page Climate change > time series and you will
see with your very own eyes there is only one region with a
declining rainfall namely the South West....
The southeast of the continent has experienced a similar
decline in late autumn and early winter
rainfall since around the mid-1990s (
see the State of the Climate 2014 for more information).
High latitude areas are tending to
see more significant increases in
rainfall, while precipitation has actually
declined in many tropical areas.»
A period of
declining Australian
rainfall associated with more frequent and intense El Nino is
seen between 1977 and 1998.