Sentences with phrase «in hydrological cycle»

We also have projects in the general area of non-linear geophysics such as examining climate feedbacks in the hydrological cycle and the effects of a variable sun on climate model simulations

One interesting science question is whether a response to changes in the GHG concentration mainly will involve a global mean temperature change dT s / dt, or if the response leads to changes in the hydrological cycle turn - around rate η z (t).

If a shift in the hydrological cycle were to lower the response in the global mean temperature, there may be a poisonous sting in such a negative feedback: changes in the precipitation patterns.

The temporal relationship between the Suess solar cycle and particularly significant 210 yr oscillations in the speleothem δ18O records therefore supports the notion that solar variability played a significant role in driving centennial - scale changes in the hydrological cycle in the subtropics during the Holocene.

As noted in the TAR (McAvaney et al., 2001), vegetation change during the mid-Holocene likely triggered changes in the hydrological cycle, explaining the wet conditions that prevailed in the Sahel region that were further enhanced by ocean feedbacks (Ganopolski et al., 1998; Braconnot et al., 1999), although soil moisture may have counteracted some of these feedbacks (Levis et al., 2004).

Dynamical and thermodynamical causes of large - scale changes in the hydrological cycle over North America in response to global warming

Uncertainties in the hydrological cycle due to land surface parameterizations can be divided into uncertainties from the spatial distribution of vegetation and from the model parameter values.

Within HYDRA this uncertainty in the hydrological cycle on both the global and local scales will be explored.

Wills, R. C. and T. Schneider, 2016: How stationary eddies shape changes in the hydrological cycle: Zonally asymmetric experiments in an idealized GCM.

2) Clouds rain using up the energy in the hydrological cycle.

These stationary - wave changes lead to large regional changes in the hydrological cycle and modify the sensitivity of the hydrological cycle to global warming.

Changes in the winds lead to further changes in the hydrological cycle with global warming.

with increasing stress on crops due to changes in the hydrological cycle and heat stress, more and more farmers are seeking answers from modified crops to heartier breeds of cattle that are more accustomed to drought conditions such as those that come from Africa and India.

The end of the first half of the Holocene — between about 5 and 4 ka — was punctuated by rapid events at various latitudes, such as an abrupt increase in NH sea ice cover (Jennings et al., 2001); a decrease in Greenland deuterium excess, reflecting a change in the hydrological cycle (Masson - Delmotte et al., 2005b); abrupt cooling events in European climate (Seppa and Birks, 2001; Lauritzen, 2003); widespread North American drought for centuries (Booth et al., 2005); and changes in South American climate (Marchant and Hooghiemstra, 2004).

Visible changes in hydrological cycle have been observed in the form of changing precipitation patterns, cropping patterns, droughts, water availability periods, frequency and intensity of heatwaves, precipitation events and weather - induced natural disasters.

Andy (or anyone else with full access)-- The abstract states that «Inferences from the observational record... indicate that models underestimate some of the changes in the hydrological cycle.»

Changes in ocean salinity can be a useful indicator of chagnes in the hydrological cycle, since the ocean integrates those changes.

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

Uncertainties in the hydrological cycle due to land surface parameterizations can be divided into uncertainties from the spatial distribution of vegetation and from the model parameter values.

Changes in hydrological cycles have taken place and the depletion of water resources are the top challenges Nepal faces in context of climate change.

Not exact matches

In recent decades, new factors in addition to deforestation have affected the hydrological cyclIn recent decades, new factors in addition to deforestation have affected the hydrological cyclin addition to deforestation have affected the hydrological cycle.

An active hydrological cycle would have required a warmer climate in the planet's early history and therefore a thicker atmosphere, one capable of creating a strong greenhouse effect.

FOG has been spotted on Titan, the first evidence that the Earth isn't the only body in the solar system to have a hydrological cycle.

Climate change is having impacts not only on the hydrological cycle, resulting in increased droughts and floods1, but also on vital water resources and ecosystem services2, such as the ability to regulate water quality through sedimentation3.

Taking factors such as sea surface temperature, greenhouse gases and natural aerosol particles into consideration, the researchers determined that changes in the concentration of black carbon could be the primary driving force behind the observed alterations to the hydrological cycle in the region.

(McNutt's response was «no» because drawbacks to the hydrological cycle would likely exceed the benefits in terms of global climate.)

Dams may also change the hydrological cycle in Amazonia, which affects precipitation in the Andes.

In hydrological data, there are series of 20 or 30 years, when we would need 100 years or more to see if there is a cycle of flooding and drought.»

That's a growing problem, because in many places, finding water for energy isn't easy - and it's bound to get tougher as energy demands soar and climate change alters hydrological cycles in already arid regions.

The paradox is that this season stands in such stark contrast to the past 11 years of drought, highlighting the types of variability that climate change can wreak on the hydrological cycle.

He predicts an acceleration of warming trends to take place in coming decades but what that means for cloud formation, hydrological cycles and other events that affect albedo is unknown.

When combined with General Circulation Models, such observations would be essential in understanding the hydrological cycle and seasonal variation on Titan.

Humans alter that hydrological cycle through water use demand - irrigation being a large use - and cause changes in water supply by affecting evaporation and runoff.

Better understanding of feedbacks in the carbon and hydrological cycles are of great interest.

On the Relationship Between Uncertainties in Tropical Divergence and the Hydrological Cycle in Global Models.»

The global science community still isn't entirely sure what caused the repeated cycles — there may have been larger oceans in the northern hemisphere that powered a hydrological cycle (evaporation, condensation, precipitation), or shorter cycles could've been caused by volcanic activity or asteroid / comet impacts.

It has been argued that the land amplification is associated with lapse rate changes (not represented in the UVic model), and it is certain that drying of the land can play a role (not reliable in the UVic model since diffusing water vapor gives you a crummy hydrological cycle, especially over land).

Strong warming in the middle latitudes of the Southern Ocean can lead to an enhanced hydrological cycle, with enhanced evaporation and moisture content in the lower troposphere [14].

The patterns of salinity change can be used to infer changes in the Earth's hydrological cycle over the oceans (Wong et al., 1999; Curry et al., 2003) and are an important complement to atmospheric measurements.

In the context of future changes in the atmospheric hydrological cycle, understanding precipitation changes in the subtropics is of particular importance givIn the context of future changes in the atmospheric hydrological cycle, understanding precipitation changes in the subtropics is of particular importance givin the atmospheric hydrological cycle, understanding precipitation changes in the subtropics is of particular importance givin the subtropics is of particular importance given

1 - Introduction 2 - Hydrological cycle 3 - Drainage basin 4 - Long profile of river 5 - Upper, middle and lower course 6 - V shaped valleys 7 - Waterfalls 8 - Meanders and ox bow lakes 9 - Mid test 10 - Flooding 11 - Boscastle mystery 12 - Boscastle ICT 13 - Flooding in Bangladesh 14 - Rivers GIS 15 - Revision

One challenge has been that the state of the hydrological cycle is not as easily summarised by one single index in the same way as the global mean temperature or the global mean sea level height.

The findings represent evidence for considerable changes in regional hydrological cycles following greenhouse gas emissions.

He predicts an acceleration of warming trends to take place in coming decades but what that means for cloud formation, hydrological cycles and other events that affect albedo is unknown.

These shifts to wetter summers correspond with periods on enhanced continental runoff as expressed by the abundance of freshwater indicators such as the algae Pediastrum and the dinocyst taxon Bosedinia and areconsistent with enhanced hydrological cycling prior to, and during the PETM interval.The marked increase in WMMT and WMMP puts a new perspective on environ - 15 mental precursors to the injection of carbon during the PETM.

If there is an increase in the rate of the hydrological cycle, even if it is small, then the temperature increase due to doubling of CO2 has been overestimated.

Volume gives us an idea on how much freshwater is stored in Arctic sea ice — an important element in the global - Arctic hydrological cycle, i.e., the cycle of distillation due to freezing, and subsequent export, and melt.

On the other hand, the subtropical waters can be expected to become saltier in the future, for the same reason (increased hydrological cycle gives more evaporation in the subtropics, thus increased salinities in subtropical waters).

The discussion in Vecchi et al. also raises some very interesting issues regarding the way the hydrological cycle might change in a warming world.

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.