Sentences with phrase «on precipitation extremes»

Topics include observations of precipitation extremes, detection and attribution work on precipitation extremes and projected changes to precipitation extremes.

Performance is assessed based on precipitation extremes indices and results from a generalized extreme value analysis applied to annual precipitation maxima.

This study employed three newly developed global coupled climate models to study the impact of horizontal atmospheric model resolution (tile size) on precipitation extremes.

Not exact matches

The 2007 International Panel on Climate Change (IPCC), the most authoritative source of climate science, spelled out the likely consequences of inaction, including extreme heat and precipitation, droughts, and rising seas.

To identify extreme weather events, the researchers relied on county and calendar day specific thresholds for precipitation and maximum temperature (90th and 95th percentile, respectively) that were calculated based on 30 years of baseline data (1960 - 1989).

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.

While the majority of climate change scientists focus on the «direct» threats of changing temperatures and precipitation after 2031, far fewer researchers are studying how short - term human adaptation responses to seasonal changes and extreme weather events may threaten the survival of wildlife and ecosystems much sooner.

«The human influence on the climate system has the effect of intensifying precipitation extremes,» Zwiers notes.

Although the rising average global surface temperature is an indicator of the degree of disruption that we have imposed on the global climate system, what's actually happening involves changes in circulation patterns, changes in precipitation patterns, and changes in extremes.

Climate scientists know that the intensity of extreme precipitation events is on the rise because there's more water vapor in the atmosphere caused by higher global and sea temperatures.

This location was chosen because it is one of the most Mars - like locales on the face of the Earth: the island is completely uninhabited and unvegetated; it receives almost no precipitation, and is thus nearly as dry as Mars; temperature extremes approach those of Mars; the impact crater where the station is located is similar to many such craters on Mars.

As the 2014 Intergovernmental Panel on Climate Change report notes, models predict that increasing temperature ought to cause greater precipitation extremes in both directions — both drought and flooding, though there are likely more areas of heavy precipitation.

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.

On a statewide and seasonal level, 2015 was a year of temperature and precipitation extremes.

Warm oceans produced extensive evaporation and precipitation, which on the cold continents resulted in extreme snowfall rates that built up glaciers.

Climate model projections show a warmer Montana in the future, with mixed changes in precipitation, more extreme events, and mixed certainty on upcoming drought.

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).

Her work focuses on the causes of change in mean and extreme temperature and precipitation.

Anthropogenic climate change is expected to have an impact on these types of events: warm temperature extremes and heavy precipitation extremes have -LSB-...]

His work mainly focuses on remote sensing of precipitation, hydrologic applications, and the analysis of extreme weather and climatic events using observation and models.

Simulation of extreme precipitation is dependent on resolution, parametrization and the thresholds chosen.

This book argues that the floods following extreme precipitation result not only from very heavy rainfall but also from the significant impact of human activities on natural water systems.

Here is an interesting report on the links between tropical temperatures and increased likelihood of extreme precipitation events:

Mean temperature, mean monthly precipitation, frequency of hot / cold days / nights, and indices of extreme precipitation are all estimated for each country based on observed and modeled data.

This influence of climate change on some extremes, including especially heat waves and heavy precipitation and some kinds of storm and flood events must no longer be waved away, swept under the rug, or otherwise ignored.

The Democrats on the committee are staying true to form, as well, overstating the findings in a recent Nature paper to try — in a way that will surely backfire — to build urgency based on extreme precipitation patterns.

The ECMWF provides data for some climate indices, such as the global mean temperature, and the National Oceanic and Atmospheric Administration (NOAA) has a web site for extreme temperatures and precipitation around the world with an interactive map, showing the warmest and coldest sites on the continents.

They discussed the effect of variables being non-iid on the extreme value analysis, and after taking that into account, propose that changes in extreme precipitation are likely to be larger than the corresponding changes in annual mean precipitation under a global warming.

When it comes to extreme weather, we always take the opportunity to point back to the last definitive international scientific report on extreme weather and climate change, which found strong historic links for heat waves, coastal flooding and changes in precipitation along with weaker links for tornadoes and hurricanes.

There have also been some reports on trends of more extreme precipitation, although The International Ad Hoc Detection and Attribution Group (IDAG, 2005) did not manage to attribute trends in precipitation to anthropogenic greenhouse gases (G)-- a quote from their review article is: «For diurnal temperature range (DTR) and precipitation, detection is not achieved», here «detection» implying the signal of G.

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.

So: The study finds a fingerprint of anthropogenic influences on large scale increase in precipitation extremes, with remaining uncertainties — namely that there is still a possibility that the widespread increase in heavy precipitation could be due to an unusual event of natural variability.The intensification of extreme rainfall is expected with warming, and there is a clear physical mechanism for it, but it is never possible to completely separate a signal of external forcing from climate variability — the separation will always be statistical in nature.

3:28 p.m. Updated I contacted Kevin Trenberth, a climate scientist at the National Center for Atmospheric Research who was just interviewed by Joe Romm on extreme precipitation and warming, to see if he thinks it's appropriate to call such storms «global warming type» events.

Some of the differences were touched on in my recent coverage of new analysis attributing some changes in extreme precipitation in the Northern Hemisphere to human - driven global warming.

3:19 p.m. Updated Andrew Freedman at the Washington Post's Capital Weather Gang blog weighed in on extreme precipitation and warming today, as well.

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.

«Since the AR4, there is some new limited direct evidence for an anthropogenic influence on extreme precipitation, including a formal detection and attribution study and indirect evidence that extreme precipitation would be expected to have increased given the evidence of anthropogenic influence on various aspects of the global hydrological cycle and high confidence that the intensity of extreme precipitation events will increase with warming, at a rate well exceeding that of the mean precipitation..

Several charts on US precipitation extremes are wet, dry and combined.

The photos allow Romps, a climate scientist who specializes in clouds, to measure how fast the clouds rise, which in turn can shed light on a wide range of areas, ranging from lightning rates to extreme precipitation to the ozone hole.

Dr. Francis Zwiers, PCIC's Director, delivered a talk on recent advances in the detection and attribution of precipitation extremes.

Peer - reviewed literature about the effects of climate change are in broad agreement that air and surface water temperatures are rising and will continue to do so, that ice cover is declining steadily, and that precipitation and extreme events are on the rise.

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

Our warming world is, according to the United Nations Intergovernmental Panel on Climate Change, increasing heat waves and intense precipitation in some places, and is likely to bring more extreme weather in the future.

The effects of weather extremes on human health have been well documented, particularly for increased heavy precipitation, which has contributed to increases in severe flooding events in certain regions.

As a result, the air is on average warmer and moister than it was prior to about 1970 and in turn has likely led to a 5 — 10 % effect on precipitation and storms that is greatly amplified in extremes.

This post was originally published on this site Today the journal Nature Climate Change published results of a groundbreaking paper that explores the changing character of precipitation extremes in California.

Precipitation extremes, many of them associated with one of the strongest La Niña events of the past 60 years, had major impacts on the world.

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 regionOn 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 regionon more than the RCPs, and that the conclusion was generally true for all these regions.

A programming note: my colleagues and I have just completed a new study on changing California precipitation extremes, and the associated paper will be released in late April.

While this week's expected precipitation is much - needed and notable given the recent extreme dryness, we're probably still on track for the driest year on record.