Conversely,
precipitation totals at the higher end of the spectrum typically only contribute a small amount to the annual totals.
Not exact matches
In western Tibet, annual snowfall
totals have risen steadily since the 1990s, especially
at higher elevations, as strengthening westerly winds bring more
precipitation.
«We need to look
at the changes in
total precipitation and the timing and distribution of run - off patterns and see how that lines up with our current infrastructure,» Fahlund said in an email.
The annual
precipitation total for Alaska is slightly decreasing
at an average rate of 0.03 inch per decade.
June is the last of dry months and during June only 1 mm of
total precipitation is expected
at Cape Verde.
Our analysis examines the heaviest downpours — the days where
total precipitation exceeded the top 1 percent of all rain and snow days —
at over 3,000 rain gauges distributed across the country over the period 1950 - 2014.
As a consequence, even in regions or states where there is a strong increasing trend in heavy
precipitation, the trend
at an individual
precipitation gauge that represents the official
total for a city may be equivocal, flat, or even down.
On average in the United States, the amount of rain falling during the heaviest 1 percent of rainstorms has increased nearly 20 percent during the past 50 years — almost three times the rate of increase in
total precipitation.4, 5 The Midwest saw an even larger average increase of 31 percent, surpassed only by the Northeast (
at 67 percent).4 Scientists attribute the rise in heavy
precipitation to climate change that has already occurred over the past half - century.6
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.
At the same time, however, for the continent as a whole, the agriculture sector, which is highly dependent on
precipitation, is estimated to account for approximately 60 % of
total employment, indicating its crucial role in livelihoods and food security derived through food access through purchase (Slingo et al., 2005).
Precipitation at Rock Springs, Wyoming,
totaled 0.01 in (0.3 mm).
Ratio between April 1 SWE
at seven SNOTEL stations and mean
total November - March
Precipitation at Diablo Dam and Concrete.
Ratio between April 1 SWE
at SNOTEL stations and mean
total November - March
Precipitation at Diablo Dam and Concrete.
This is expected since a higher proportion of
total precipitation falls as snow
at the higher sites.
forecast lead - time
at which the continuous ranked probability skill score (CRPSS) for ENS probabilistic forecasts of 24 - hour
total precipitation reaches 10 % for the extra-tropics (northern and southern hemispheres); verification against station observations
Also, I would imagine it is very difficult
at the moment to calculate the
total volume of
precipitation of rainfall over a region.
The intensity of
precipitation is of interest, but even that doesn't say a lot about
total volume of
precipitation given that rainfall is, by its nature, is not measured by area, it is only measured
at a point — or several points — all of which will have different results.
Together with the progressive shortening of the ISM season and gradual southward retreat of the summer ITCZ, the
total amount of monsoon
precipitation decreased in those areas located
at the northern fringe of the ISM domain, but increased in areas closer to the equator.
If we take a further step and consider the atmospheric state
at a location (or even the global average) with respect to temperature or
precipitation, we may observe that physics does not imply any preservation law for temperature (the
total energy is preserved, not temperature) or for
precipitation (the
total water balance is preserved, not the rate of
precipitation).
PCIC has made seasonal maps of average temperature and
total precipitation departures from the 30 - year climatology
at observational weather stations in BC, for all months from 1972 onward.