"Seasonal precipitation" refers to the amount of rainfall or snowfall that occurs during specific seasons of the year.
Full definition
Despite no historical changes in average annual precipitation between 1950 and 2015, there have been changes in
average seasonal precipitation over the same period.
Assessing the quality
of seasonal precipitation forecasts for the Malawi and Zambia area is challenging, particularly due to the limited number of forecasts used and the climatic conditions of the region.
Projected change in
seasonal precipitation for 2071 - 2099 (compared to 1970 - 1999) under an emissions scenario that assumes continued increases in emissions.
Data analyses have found an increase of drought intensity at many locations [130]--[131] The magnitude of change depends on the drought index employed [132], but soil moisture provides a good means to separate the effect of
shifting seasonal precipitation and confirms an overall drought intensification [37].
Vector wind analyses were computed to explain the composite
seasonal precipitation anomaly results in terms of different circulation patterns associated with these two wet groups.
L'Heureux, M.L., Mann, M.E., Cook B.I., Gleason, B.E., Vose, R.S., Atmospheric Circulation Influences
on Seasonal Precipitation Patterns in Alaska during the latter 20th Century, Journal of Geophysical Research, 109, D06106, doi: 10.1029 / 2003JD003845, 2004.
Although a limited sample size precluded rigorous analysis across different forest types, separate analysis was conducted (with data from at least three droughts) for the following subsets: tropical and temperate forests, climates with and
without seasonal precipitation flux, broadleaf and needle - leaf forests, and forests with drought deaths not associated with bark beetles.
Since essentially the entire geographic region experiences a qualitatively Mediterranean climate — with
strongly seasonal precipitation and a very distinct (but globally uncommon) summer dry season — most of California's annual precipitation derives from a relatively small handful of major cool - season precipitation events.
Data analyses have found an increase of drought intensity at many locations [130]--[131] The magnitude of change depends on the drought index employed [132], but soil moisture provides a good means to separate the effect of
shifting seasonal precipitation and confirms an overall drought intensification [37].
Assessing the quality of
seasonal precipitation forecasts in Malawi and Zambia is challenging but necessary
Instead they found that the natural influence on precipitation over land areas with observations in the 30 to 60N latitude band is indistinguishable from the natural + anthropogenic signal indicating that anthropogenic forcing has played no detectable role in the evolution of
seasonal precipitation in this latitude band either in seasonal or annual totals.
(D) The unconditional probability of a — 1.5 SD
seasonal precipitation anomaly (blue curve) and the conditional probability that a — 1.5 SD seasonal precipitation anomaly occurs in conjunction with a 1.5 SD seasonal temperature anomaly (red curve), for each of the four 3 - mo seasons.
Trends in atmospheric patterns conducive to
seasonal precipitation and temperature extremes in California
Controlling for observed conditions, beliefs about global climate change had a large effect on perceptions of seasonal temperature, and smaller effects on perceptions of
seasonal precipitation.»