Sentences with phrase «precipitation extremes over»

Bracken C., B. Rajagopalan, L. Cheng, W. Kleiber and S. Gangopadhyay (August 2016): Spatial Bayesian hierarchical modeling of precipitation extremes over a large domain.

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).

O'Gorman, P. A., and T. Schneider, 2009: Scaling of precipitation extremes over a wide range of climates simulated with an idealized GCM.

«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

«If we look at precipitation events over the long term, there is an increase in frequency of extremes.

Based on over a decade of asthma hospitalization data (115,923 cases from 2000 - 2012), researchers observed higher risk of asthma hospitalization after extreme heat or extreme precipitation events.

Staying on the Southern Hemisphere, a research team led by Sue Rosier, looked at extreme precipitation over the North Island of New Zealand that led to severe flooding in July 2014.

The Extremes Grand Challenge is organised around four over arching themes (Document, Understand, Simulate, Attribute) with a main focus on four core events (Heavy Precipitation, Heatwave, Drought, Storm).

I understand this to mean that over time, there is a tendency to move upwards (to the right) along the cumulative probability curve, let's say, for annual extreme 1 - day precipitation.

My experience with extremes and detection and attribution of an anthropogenic signal in those is that only by averaging the behavior of extremes (both temperature extremes and precipitation extremes) over large geographical areas (continental or barely sub-continental) we have been able to see something outside of natural variability.

Second Assessment of Climate Change for the Baltic Sea Basin https://books.google.com/books?isbn=3319160060 The BACC II Author Team averaged frequency of extreme 1 - day precipitation totals above 15 mm and a... 4.6 Cloudiness and Solar Radiation 4.6.1 Cloudiness Records of cloudiness and solar... There is a trend of decreasing cloud cover over the Baltic Sea basin......

These results are based on a comparison of observed and multi-model simulated changes in extreme precipitation over the latter half of the twentieth century analyzed with an optimal fingerprinting technique.

I posted a quick riff overnight on new research, published in Nature, that links human - driven global warming and rising instances of extreme precipitation in observed parts of the Northern Hemisphere over the last half of the 20th century.

The U.S. Climate Extremes Index (USCEI), an index that tracks the highest and lowest 10 percent of extremes in temperature, precipitation, drought and tropical cyclones across the contiguous U.S., was a record - large 44 percent during the January - June period, over twice the averagExtremes Index (USCEI), an index that tracks the highest and lowest 10 percent of extremes in temperature, precipitation, drought and tropical cyclones across the contiguous U.S., was a record - large 44 percent during the January - June period, over twice the averagextremes in temperature, precipitation, drought and tropical cyclones across the contiguous U.S., was a record - large 44 percent during the January - June period, over twice the average value.

Nearly all studies to date published in the peer - reviewed literature agree that extreme precipitation event number and intensity have risen, when averaged over the United States.

Maine could also see two to three times more extreme precipitation events, defined as four inches over 48 hours, said Wake.

There is a minimum model resolution that is needed to capture weather phenomena generating precipitation extremes, for example for simulating tropical cyclones or precipitation enhancement over mountains.

«Lehmann et al. (2015) also found large — scale increasing patterns in extreme precipitation, with 12 % more record - breaking rainfall events over 1981 — 2010.

The US CLIVAR Extremes Working Group was formed to evaluate whether current climate models produce extremes for the right reasons and whether they can be used for predicting and projecting short - term extremes in temperature and precipitation over North Extremes Working Group was formed to evaluate whether current climate models produce extremes for the right reasons and whether they can be used for predicting and projecting short - term extremes in temperature and precipitation over North extremes for the right reasons and whether they can be used for predicting and projecting short - term extremes in temperature and precipitation over North extremes in temperature and precipitation over North America.

On extreme precipitation events over mid-latitude landmass and wet tropical regions becoming more intense and frequent, the CLAs clarified that the assessment was based on more than the RCPs, and that the conclusion was generally true for all these regions.

Over the longer term, this kind of weather isn't totally unexpected — extreme swings in precipitation are becoming the new normal.

* I was just recently pointed at a study by Cretat et al (http://link.springer.com/article/10.1007/s00382-013-1796-7) demonstrating the added skill of RCMs over GCMs to capture the characteristics of extreme precipitation events over Africa

The report, written by 220 experts from 62 countries, finds that climate change has already contributed to changes in extreme events — such as heat waves, high temperatures, and heavy precipitation — in many regions over the past 50 years.

Average precipitation is changing in many regions with both increases and decreases and there is a general tendency for increases in extreme precipitation observed over land areas.

Hagos, S. M., et al., 2016: A projection of changes in landfalling atmospheric river frequency and extreme precipitation over western North America from the Large Ensemble CESM simulations.

One of the major findings is an increase in key types of extreme weather events, especially in heat waves and large precipitation events, in the U.S. and around the world over the last 50 years.

This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high - latitude snow cover, changes in Arctic - region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and / or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature / precipitation anomalies and extreme weather events over northern continents.

Winter precipitation (mean and extreme) variability and trends along the south coast and interior of Alaska appear to be closely related to variations in the PNA pattern over this timeframe, while El Nino / Southern Oscillation (ENSO) influences, through the Nino3 index, appear to be significant along the south coast alone.

The projections also indicate an increase in the basin - averaged precipitation and an increase in the frequency of extreme precipitation events over the region as a whole.

Zilli M. T., L. M. V. Carvalho, B. Liebmann and M. A. S. Dias (April 2017): A comprehensive analysis of trends in extreme precipitation over southeastern coast of Brazil.

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

Although the global models have improved over time (Chapter 8), they still have limitations that affect the simulation of extreme events in terms of spatial resolution, simulation errors, and parametrizations that must represent processes that can not yet be included explicitly in the models, particularly dealing with clouds and precipitation (Meehl et al., 2000d).

In general, the majority of all precipitation occurs as isolated 1 - day events, while most extreme precipitation occurs over a period of several hours embedded within 2 - 5 day events.

Over 75 % of the Northeast short - term extreme precipitation is related to extratropical storms moving through or near the region, except during September, when more than 50 % of extreme precipitation is related to tropical storm activity.

The culprit behind much of the extreme heat in each case has been large, strong, and persistent areas of high pressure, which have set up shop over these high latitude locations, keeping cooler weather and precipitation at bay.

Here is an excerpt of the research paper, «When It Rains It Pours», from Environment America, showing a statistically significant spike in flash flooding and other extreme precipitation events since 1948: «Weather records show that storms with extreme precipitation have become more frequent over the last 60 years.

An analysis of extreme precipitation trends in Europe during the 20th century has identified a wetting trend over central and western Europe from 1921 to 1999.

Many impacts of climate change will be realised as the result of a change in the frequency of occurrence of extreme weather events such as windstorms, tornados, hail, heatwaves, gales, heavy precipitation or extreme temperatures over a few hours to several days.