Sentences with phrase «daily precipitation extremes»

In addition, climate change is very likely to lead to more frequent extreme heat events and daily precipitation extremes over most areas of North America, more frequent low snow years, and shifts towards earlier snowmelt runoff over much of the western US and Canada (high confidence).

«We show that at the present - day warming of 0.85 °C about 18 % of the moderate daily precipitation extremes over land are attributable to the observed temperature increase since pre-industrial times, which in turn primarily results from human influence,» the research team said.

Not exact matches

Durman, C.F., et al., 2001: A comparison of extreme European daily precipitation simulated by a global model and regional climate model for present and future climates.

Because of the limited availability of daily observations, however, most previous studies have examined only the potential detectability of changes in extreme precipitation through model — model comparisons (12 — 15).

In particular, the report authors predicted that with climate change there would be an increase in certain types of extreme weather, including daily high temperatures, heat waves, heavy precipitation and droughts, in some places.

The extremes considered are for weather elements that are monitored daily, such as temperature and precipitation.

Figure 9.6: Maps show the increase in frequency of extreme daily precipitation events (a daily amount that now occurs just once in 20 years) by the later part of this century (2081 - 2100) compared to the latter part of the last century (1981 - 2000).

Evidence that extreme precipitation is increasing is based primarily on analysis1, 2,3 of hourly and daily precipitation observations from the U.S. Cooperative Observer Network, and is supported by observed increases in atmospheric water vapor.4 Recent publications have projected an increase in extreme precipitation events, 1,5 with some areas getting larger increases6 and some getting decreases.7, 2

Yearly maxima of the daily precipitation and wadi flow for varying return periods were compared for observed and projected data by fitting the generalized extreme value (GEV) distribution function.

Figure 2.19: Maps show the increase in frequency of extreme daily precipitation events (a daily amount that now occurs once in 20 years) by the later part of this century (2081 - 2100) compared to the later part of last century (1981 - 2000).

A summary of the report released in November predicts an increase in certain types of extreme weather, including daily high temperatures, heat waves, heavy precipitation and droughts, in some places.

Presents the trends in daily and extreme temperature and precipitation indices in the Caribbean region for records spanning the 1961 — 2010 and 1986 — 2010 intervals

We examine a range of climate extremes, comprising the 10th and 90th percentiles of daily maximum (TX) and minimum (TN) temperatures, the 90th percentile of daily precipitation (PR90), and the 27 core Climate Daily Extremes (CLIMDEX) extremes, comprising the 10th and 90th percentiles of daily maximum (TX) and minimum (TN) temperatures, the 90th percentile of daily precipitation (PR90), and the 27 core Climate Daily Extremes (CLIMDEX) inddaily maximum (TX) and minimum (TN) temperatures, the 90th percentile of daily precipitation (PR90), and the 27 core Climate Daily Extremes (CLIMDEX) inddaily precipitation (PR90), and the 27 core Climate Daily Extremes (CLIMDEX) indDaily Extremes (CLIMDEX) Extremes (CLIMDEX) indices.

In extreme seasons — when precipitation falls infrequently — July and August daily high temperatures could average between 100 and 110 degrees Fahrenheit in cities such as Chicago, Washington, and Atlanta.

A set of long, nearly complete daily precipitation series for Alaska spanning the latter half of the 20th century has been analyzed for seasonal relationships between variations in mean, heavy, and extreme precipitation and large - scale atmospheric circulation variations at interannual, decadal, and secular timescales.

Indicators based on daily precipitation data show more mixed patterns of change but significant increases have been seen in the extreme amount derived from wet spells and number of heavy rainfall events.

Wang, J. & Zhang, X. Downscaling and projection of winter extreme daily precipitation over North America.

The recurrence of extreme - to - heavy precipitation is notoriously hard to predict, yet cost — benefit estimates of mitigation and successful climate adaptation will need reliable information about percentiles for daily precipitation.

Analysis of extreme precipitation simulated by climate models has included the daily variability of anomalous precipitation (Zwiers and Kharin, 1998; McGuffie et al., 1999; Kharin and Zwiers, 2000), patterns of heavy rainfall (Bhaskran and Mitchell, 1998; Zhao et al., 2000b), as well as wet and dry spells (Thorncroft and Rowell, 1998; McGuffie et al., 1999).