In concert with the results for increased extremes of intense precipitation, even if the wind strength of storms in a future climate did not change, there would be an increase in
extreme rainfall intensity.
Not exact matches
Overall, the chances of seeing a
rainfall event as intense as Harvey have roughly tripled - somewhere between 1.5 and five times more likely - since the 1900s and the
intensity of such an event has increased between 8 percent and 19 percent, according to the new study by researchers with World Weather Attribution, an international coalition of scientists that objectively and quantitatively assesses the possible role of climate change in individual
extreme weather events.
Dry places are likely to get drier;
rainfall is likely to arrive in fewer but more concentrated episodes; and
extreme weather events such as tropical cyclones are likely to increase in
intensity.
Using probability distributions of convergence / divergence and of
rainfall intensity, thresholds were identified and used to classify
extreme and background events in each dataset.
In presentations we have given and in the papers in prep right now, we call into question the traditional ways in which we estimate
extreme rainfall frequency, probability and
intensity.
Their work, published in the journal Reviews of Geophysics, summarizes current research on the analysis of future changes to the
intensity, duration and frequency of short - duration
extreme rainfall.
Westra, S., et al., 2014: Future changes to the
intensity and frequency of short - duration
extreme rainfall.
In particular, in the European Mediterranean region, increases in the frequency of
extreme climate events during specific crop development stages (e.g., heat stress during flowering period, rainy days during sowing time), together with higher
rainfall intensity and longer dry spells, are likely to reduce the yield of summer crops (e.g., sunflower).
Publishing in the Reviews of Geophysics, Westra et al (2014) summarize the current state of research in the analysis of future changes to the
intensity, frequency and duration of
extreme rainfall.
Spectral nudging improves agreement on landfall latitude between the RCM and the driving model without greatly diminishing the
intensity of the
rainfall extreme.
But, as far as what we can expect from the IPCC and what the consensus science is, climate change is likely to lead to increased occurrences and
intensity of
extreme weather events like heavy
rainfall, droughts, warm spells, storm surges, heat waves and sea level rise.
In addition to rising global temperatures, the increasing frequency and
intensity of
extreme rainfall events is one of the clearest already observed effects of climate change.
In summary, in contrast with the simulations of
extreme temperature by climate models,
extreme precipitation is difficult to reproduce, especially for the
intensities and patterns of heavy
rainfall which are heavily affected by the local scale (see Chapter 10).