Sentences with phrase «hydrological extreme»

Recent hydrological extreme events demonstrate the vulnerability of European society to water - related natural hazards, and there is strong evidence that climate change will worsen these events in the coming years.

This technical document provides background information on groundwater protection with particular reference to its use in emergency situations as result of natural hazards and hydrological extremes.

This issue that deserves a lot of attention in the literature due to the possible existence of (positive) feedbacks that may affect occurrence or intensity of hydrological extremes such as heatwaves.

Besides this study, there are robust theory and modeling results that show increased risk of hydrological extremes (floods and droughts) and heat - related problems.

It compares the reported impacts of meteorological, climatic and hydrological extremes on people and economies at both global and regional levels.

Not exact matches

New data show that extreme weather events have become more frequent over the past 36 years, with a significant uptick in floods and other hydrological events compared even with five years ago, according to a new publication, «Extreme weather events in Europe: Preparing for climate change adaptation: an update on EASAC's 2013 study» by the European Academies» Science Advisory Council (EASAC), a body made up of 27 national science academies in the European Union, Norway, and Switzerland.

Co-author Dr Alison Kay from the Centre for Ecology & Hydrology said: «Our hydrological modelling suggests that the increased likelihood of extreme rainfall arising from human - made climate change gives a more modest increase in extreme flows in the River Thames.

By the 2100 humankind could be looking at a very different world, 7 metres more water apparantly, a slowdown of the worlds thermohaline system which could plunge northern europe into some canada style winters, a major realignment of the planets hydrological cycle which would mean drought and monsoons where none exist now perhaps, the disapperance of the Amazon rainforest, more extreme el ninos that last a lot longer along with the sister efect (la nina I think.

The yearly hydrological redistribution of mass is visible in the GRACE data, as well as the more extreme melting seasons.

I know in general terms that the hydrological cycle should intensify with warming and that one event is hard to pin on climate change, but it would be good to do a catch up on how the broad trend of extreme weather fits the models.

The findings are among the first formal identifications of human contribution to extreme hydrological events.

«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..

The British Hydrological Society's Chronology of extreme weather events shows all too clearly that we have had (in the U.K.) much more severe flooding in Britain, and long before the recent warming trend set in, for centuries past.

«Global geoengineering is completely disrupting the hydrological cycle, destroying the ozone layer (which is exposing all life on Earth to extreme UV radiation), and contaminating the entire surface of the planet with highly toxic bioavailable heavy metals and chemicals.

With Spring on the way, with so much moisture still bleeding off the Pacific, with a record level of global warming greatly amping up the hydrological cycle, and with a trough development tendency setting up for this region — this particular extreme rainfall event may, sadly, be but the first of many this season.

More accurate and reliable precipitation data would be invaluable, not only for the study of climate trends and variability, but also as inputs to hydrological and ecological models and for model validation, characterization of extreme events, and flood and drought forecasting.

Whatever the cause — global hydrological and climate variability — extreme drought, extreme floods and extreme temperature changes such as has not been seen in the past century — will occur again.

Such natural extremes from climate persistence are quantitatively modeled by Harold E. Hurst (1951) in his breakthrough hydrological analysis of the 813 year record of Nile river flows (Rikert 2014).

Increasing global temperatures are disrupting the global climate and the earth's hydrological cycle, leading not only to record high air and sea temperatures, but also to more extreme flooding, deeper and longer droughts and more frequent and severe storms.

This, as climate models suggest, and what seems to have been happening in the climate system, is to produce a more energetic hydrological cycle, resulting in more extreme weather conditions — more severe droughts, more sever floods.

Some more astute voices have been speculating about this potential since the turn of the century — and suggesting that with dynamic climate shifts there are even greater risks of extreme hydrological and temperature changes.

A) Physical impacts: Sea level rise, extreme events and hydrological disruptions, pose major challenges to vital transport, water, and energy infrastructure and can weaken states socially and economically.

The risk assessment framework comprises hydrological modelling, threshold - based evaluation of extreme event magnitude and frequency, fully integrated 2D flood hazard mapping, updated exposure maps, country - specific depth - damage functions and improved vulnerability information to estimate current and future flood risk.

These include increased average land and ocean temperatures that lead to reduced snowpack levels, hydrological changes, and sea level rise; changing precipitation patterns that will create both drought and extreme rain events; and increasing atmospheric CO2 that will contribute to ocean acidification, changes in species composition, and increased risk of fires.

The results have implications for how we interpret the impact of global warming on the hydrological cycle and its extremes, and may help to explain why palaeoclimate drought reconstructions based on tree - ring data diverge from the PDSI - based drought record in recent years9, 10.