Sentences with phrase «hydrological studies»

(quoted from Koutsoyiannis, D., & Z. W. Kundzewicz, Editorial — Quantifying the impact of hydrological studies, Hydrological Sciences Journal, 52 (1), 3 - 17, 2007; open access in http://www.atypon-link.com/IAHS/doi/abs/10.1623/hysj.52.1.3, which contains also the data that support this statement).

Not exact matches

According to the authors, since the 1970s, when studies conducted by Professor Eneas Salati demonstrated that the Amazon generates approximately half of its own rainfall, the question has been raised of how much deforestation would be required to degrade the region's hydrological cycle to the point at which it would be unable to support rainforest ecosystems.

Now a new study led by researcher Eduardo Maeda from the University of Helsinki has put together a unique combination of satellite data and hydrological measurements to study the problem.

This study highlights the importance of considering hydrological drought for wildfire prediction, and the researchers recommend that hydrology should be considered in future studies of the impact of projected ENSO strength, including effects on tropical ecosystems, and biodiversity conservation.

Many past studies have determined that geoengineering experiments, while keeping the planet cool, also can disrupt the Earth's hydrological cycle to dangerous degrees (ClimateWire, Nov. 6).

A: Ethnographic studies in Alaska to better understand subsistence; how to preserve the integrity of the hydrological system in the Colorado river; how to deal with disasters like Hurricane Sandy or Deepwater Horizon.

After evaluating data from the field, hydrological models, and Environmental Impact Assessment reports about the small dams, Kibler and Tullos concluded that impacts of the small dams exceeded those of large dams on nine of the 14 characteristics they studied.

The study is the first to use long - term continuous water chemistry data to document hydrological changes over an enormous geographic area and a long time span.

When comparing the history of hydrological changes in the region with artifacts from the Middle Stone Age, the researchers discovered a «striking correspondence between the archaeological record of South Africa and the timing of the abrupt climate change» as seen in the marine core, the study states.

In the study, Lauren Lowman, a doctoral student in Barros's laboratory, used a hydrological computer model to simulate the ecological impacts of tropical cyclones from 2004 - 2007.

«Looking at changes in the number of dry days per year is a new way of understanding how climate change will affect us that goes beyond just annual or seasonal mean precipitation changes, and allows us to better adapt to and mitigate the impacts of local hydrological changes,» said Polade, a postdoctoral researcher who works with Scripps climate scientists Dan Cayan, David Pierce, Alexander Gershunov, and Michael Dettinger, who are co-authors of the study.

Our study shows that the northeast United States is one of those regions where warming will proceed very rapidly, so that if and when the global target is reached, we will already be experiencing much higher temperatures, with all of the related ecological, hydrological and agricultural consequences.»

The trends driven by earlier snowmelt are likely to as they are «are very much in line with the projections of future climate» from climate models, study co-author Berit Arheimer of the Swedish Meteorological and Hydrological Institute said.

In subsequent studies, Masiello's lab has explored biochar's production, microbial impacts, hydrological characteristics and pollution - reducing effects.

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.

The team also hopes that in future analyses, they can link hydrological models with their analyses to study changes in flood risk more directly.

The study used detailed hydrological models to compare the amount of flooding in El Niño and La Niña years to the average from all years between 1958 to 2000.

«With the hydrological cycle projected to change under global warming, impacting upper - ocean stratification and mixing, the results from this study have potentially important implications for understanding future tropical cyclone activity.»

Studies of climate change using global climate models with a focus on changes in the hydrological cycle.

Conversion to arable land changes the hydrological regime In the present study, the cause for the decrease in species diversity is the changing hydrological regime resulting from the conversion of forest to arable land.

http://www.springerlink.com/content/lm0024kv72t3841w/ «The simulated magnitude of hydrological changes over land are much larger when compared to changes over oceans in the recent marine cloud albedo enhancement study since the radiative forcing over land needed (− 8.2 W m − 2) to counter global mean radiative forcing from a doubling of CO2 (3.3 W m − 2) is approximately twice the forcing needed over the oceans (− 4.2 W m − 2).

«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..

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.

A new study shows that the AMOC is more sensitive to warming, including changes in the atmospheric hydrological cycle, than Greenland Ice Sheet melting.

The National Hydrological Monitoring Programme study, carried out by scientists from the Centre for Ecology and Hydrology (CEH) and the British Hydrological Society, is published today on the anniversary of Storm Desmond − the most destructive of several named storms during three months of «remarkably persistent and exceptionally mild cyclonic» activity.

In general, these studies have shown that different ways of creating scenarios from the same source (a global - scale climate model) can lead to substantial differences in the estimated effect of climate change, but that hydrological model uncertainty may be smaller than errors in the modelling procedure or differences in climate scenarios (Jha et al., 2004; Arnell, 2005; Wilby, 2005; Kay et al., 2006a, b).

Virtually all studies use a hydrological model driven by scenarios based on climate model simulations, with a number of them using SRES - based scenarios (e.g., Hayhoe et al., 2004; Zierl and Bugmann, 2005; Kay et al., 2006a).

Studies made at the State Hydrological Institute, Russia, comparing the horizon of 2010 to 2015 with the control period 1950 to 1979, show that ice cover duration on the rivers in Siberia would be shorter by 15 to 27 days and maximum ice cover would be thinner by 20 to 40 % (Vuglinsky and Gronskaya, 2005).

The objective of this drilling is to detect permafrost distribution, study impact of frozen ground on hydrological cycle, carbon exchange.

Zhang, Dongxiao and Michael J. McPhaden: The ocean's role in an intensified hydrological cycle under global warming: A case study for the Pacific.

This study investigates a physical basis for heterogeneity in hydrological changes, which suggests a greater detectability in wet than dry regions.

We are developing methodologies, case studies, and tools that range from hydrological diagnostics to cost - effectiveness analyses to long - term master planning.

A recent hydrological impacts study in British Columbia, Canada, used an ensemble of 23 climate change simulations to assess potential future changes in streamflow.

PTI: Studies conducted by Geological Survey of India indicate some of the likely impacts of melting of glaciers on the hydrological system in form of changes in the river hydrology, increased debri...

Our study has identified soil water predictability even beyond the interannual timescales, thus extending the potential predictive range of hydrological conditions over North America to almost a decade.

Coincident with the abrupt cooling and hydrological changes of ~ 5,200 yr BP, archaeological studies support a general pattern of abandoned Neolithic human settlements in several areas, including the Andes and the entire Eastern Mediterranean, indicating a widespread climatic crisis that marks the transition from the Chalcolithic to the early Bronze Age (Weninger et al., 2009).

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

1) The enhancement to the hydrological cycle 2) increased advection of energy toward the polar regions, both by ocean currents and of course the atmosphere (there is a large team studying the expanding IPWP and the effects on atmospheric circulation right now).

Timing of human - induced climate change emergence from internal climate variability for hydrological impact studies

PTI: Studies conducted by Geological Survey of India indicate some of the likely impacts of melting of glaciers on the hydrological system in form of changes in the river hydrology, increased debris production and siltation of rivers in downstream region.

Published in the journal Hydrological Sciences, the study looks at data sets from 1884 to 2013 and found an upward trend in reported flooding, with flood events appearing more frequently towards the end of the 20th century, peaking in 2012 when annual rainfall was the second highest in over 100 years.