Sentences with phrase «as climate variability and change»

A continued mode of corrections using approaches where statistical uncertainties are not quantified is not a scientifically sound methodology and should be avoided, considering the importance of such surface station data to a broad variety of climate applications as well as climate variability and change studies.

Not exact matches

Growing scarcity In addition to a growing scarcity of natural resources such as land, water and biodiversity «global agriculture will have to cope with the effects of climate change, notably higher temperatures, greater rainfall variability and more frequent extreme weather events such as floods and droughts,» Diouf warned.

In the spring of 2014, Koonin's drafting committee produced a statement that attributed equal weight to human influences and natural variability as a driver of climate change, according to a source who declined to be named.

Climate researchers from the Helmholtz Young Investigators Group ECUS at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) in Potsdam have now investigated how temperature variability changed as the Earth warmed from the last glacial period to the current interglacial period.

Strategies to adapt to climate change will dovetail with the current policies and practices that deal with variability and will be understood as more of the same, rather than something alien.

Gentine and his team are now exploring ways to model how biosphere - atmosphere interactions may change with a shifting climate, as well as learning more about the drivers of photosynthesis, in order to better understand atmospheric variability.

The research concludes that for other changes, such as regional warming and sea ice changes, the observations over the satellite - era since 1979 are not yet long enough for the signal of human - induced climate change to be clearly separated from the strong natural variability in the region

In recent years, a brand of research called «climate attribution science» has sprouted from this question, examining the impact of extreme events to determine how much — often in fractional terms — is related to human - induced climate change, and how much to natural variability (whether in climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host of other possible factors).

As the model runs progressed, those tiny differences grew and expanded, producing a set of climate simulations useful for studying questions about variability and change.

Unlike the freakish situation in California, where several years of low snowfall and rainfall are serving as a reminder of the tremendous natural variability in Pacific - influenced weather, and the need to always be vigilant when it comes to managing water supplies, the situation in Washington resembles the parched climate - changed normal for swaths of the West in the decades ahead.

«Even more interesting is that as satellite measurements continue and so as the datasets get longer, we will be able to recalculate our metric over longer time periods to investigate how and if ecosystem sensitivity to climate variability is changing over time.»

January 2004: «Directions for Climate Research» Here, ExxonMobil outlines areas where it deemed more research was necessary, such as «natural climate variability, ocean currents and heat transfer, the hydrological cycle, and the ability of climate models to predict changes on a regional and local scale.Climate Research» Here, ExxonMobil outlines areas where it deemed more research was necessary, such as «natural climate variability, ocean currents and heat transfer, the hydrological cycle, and the ability of climate models to predict changes on a regional and local scale.climate variability, ocean currents and heat transfer, the hydrological cycle, and the ability of climate models to predict changes on a regional and local scale.climate models to predict changes on a regional and local scale.»

Methods: While a few studies in the past investigated the influence of climate phenomena such as the El Niño Southern Oscillation and the Madden - Julian Oscillation on the inter-annual variability of tropical cyclones in the post-monsoon Bay of Bengal, changes in long - term cyclone activity are less well understood.

While ENSO and other sources of natural variability can determine the location of extremes, 1 the intensity and duration of the associated extremes such as droughts, and the associated heat waves, have increased with climate change.

His research interests include studying the interactions between El Niño / Southern Oscillation (ENSO) and the monsoons of Asia; identifying possible effects on global climate of changing human factors, such as carbon dioxide, as well as natural factors, such as solar variability; and quantifying possible future changes of weather and climate extremes in a warmer climate.

In the following chapters, we will refer to the impacts and effects of climate change as a result of both natural variability and human - caused climate change.

In fact, scientists have long recognized the importance of solar variability as one of the factors governing climate (see the very scholarly review of the subject by Bard and Frank, available here at EPSL or here as pdf) An understanding of solar variability needs to be (and is) taken into account in attribution of climate change of the past century, and in attempts to estimate climate sensitivity from recent climate variations.

Prior to joining ECI, she completed her Ph.D. at Oregon State University, where she worked on the weather@home project over western US region, looking at drivers of extreme drought events in the US, future regional climate change projections over the western US, as well as investigating uncertainties due to internal variability and physical parameter perturbations.

Rather, it sampled how sensitive they are to climate «variability» — defined in the study as monthly changes in temperature, precipitation or water availability, and cloud cover.

Changes in the frequency and magnitude of climate extremes, of both moisture and temperature, are affected by climate trends as well as changing variability.

The motivation for the MCA arose from citizens and organizations in Montana who have expressed interest in receiving timely and pertinent information about climate change, including information about historical variability, past trends, and projections of future impacts as they relate to topics of economic concern.

If we have some time to prepare, the combination of lowering all the discussed emissions, utilizing current technology to implement alternative energy sources, and engineering new twists on said technology to both continue lowering emissions and adapting to global climate changes as well, we may be able to guide our response sets to outside, artificial selective pressures in conjunction with natural ones; natural, internal variability and external forcings / feedbacks.

The attribution of the term at regional scales is complicated by significant regional variations in temperature changes due to the the influence of modes of climate variability such as the North Atlantic Oscillation and the El Nino / Southern Oscillation.

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureClimate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

As with most titles, however, this one simplifies the chain of causality (global climate change - > increased temperature variability - > increased infection - > increased frog sickness) and hopefully invites readers to read further.

Ruling out solar as a forcing would be equivalent to saying ENSO and the NPI and other forms of natural variability no longer play a role in climate change because of CO2....

Thus, the title of the USF press release, «Frogs Getting Sick from Climate Change,» is accurate in suggesting that climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate Climate Change,» is accurate in suggesting that climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cChange,» is accurate in suggesting that climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cchange caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cchange» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate climate changechange.

With that in mind, our paper is fundamentally about inter-decadal variability in the climate system and its role in the evolution of the 20th century climate trajectory, as well as in near - future climate change.

Since there is now an almost century - long record of these break up dates, it makes sense to look at them as potential indicators of climate change (and interannual variability).

Ironically, while some continue to attack this nearly decade - old work, the actual scientific community has moved well beyond the earlier studies, focusing now on the detailed patterns of modeled and reconstructed climate changes in past centuries, and insights into the roles of external forcing and internal modes of variability (such as the North Atlantic Oscillation or «NAO» and the «El Nino / Southern Oscillation» or «ENSO») in explaining this past variability.

In many cases, it is now often possible to make and defend quantitative statements about the extent to which human - induced climate change (or another causal factor, such as a specific mode of natural variability) has influenced either the magnitude or the probability of occurrence of specific types of events or event classes.»

On the very small scale, one could have a runaway between whether or not a weather pattern has a thunderstorm at a specific time and place or whether it is dry and sunny at that specific time and place — but that's not the same as a change in climate (see internal variability, chaos, butterfly effect).

The implications of our findings are that the modern observations of ocean - driven warming along the western Antarctic Peninsula need to be considered as part of a natural centennial timescale cycle of climate variability, and that in order to understand climate change along the Antarctic Peninsula, we need to understand the broader climate connections with the rest of the planet.

Recently I have been looking at the climate models collected in the CMIP3 archive which have been analysed and assessed in IPCC and it is very interesting to see how the forced changes — i.e. the changes driven the external factors such as greenhouse gases, tropospheric aerosols, solar forcing and stratospheric volcanic aerosols drive the forced response in the models (which you can see by averaging out several simulations of the same model with the same forcing)-- differ from the internal variability, such as associated with variations of the North Atlantic and the ENSO etc, which you can see by looking at individual realisations of a particular model and how it differs from the ensemble mean.

Those main conclusions are that climate is changing in ways unusual against the backdrop of natural variability; that human activities are responsible for most of this unusual change; that significant harm to human well - being is already occurring as a result; and that far larger --- perhaps catastrophic — damages will ensue if serious remedial action is not started soon.

«We... propose that one should not rely solely on prediction as the primary policy approach to assess the potential impact of future regional and global climate variability and change.

The tools for adapting to climate change are the same as those for dealing with climate variability, and both are needed in northern Africa.

So, of course there are uncertainties in the findings, as in any attribution and detection result, there is a remaining chance that the observed change is due to internal climate variability (5 - ish %) particularly if the models would underestimate that variability.

As to the models, this interplay between climate change and climate variability is fascinating and this richness of behaviour is indeed seen in the climate models.

As far as surface temperature is concerned — the Royal Society said that climate change is the result of ordered forcing and internal climate variability as a result of climate being an example of a chaotic systeAs far as surface temperature is concerned — the Royal Society said that climate change is the result of ordered forcing and internal climate variability as a result of climate being an example of a chaotic systeas surface temperature is concerned — the Royal Society said that climate change is the result of ordered forcing and internal climate variability as a result of climate being an example of a chaotic systeas a result of climate being an example of a chaotic system.

The disagreement arises from different assessments of the value and importance of particular classes of evidence as well as disagreement about the appropriate logical framework for linking and assessing the evidence — my reasoning is weighted heavily in favor of observational evidence and understanding of natural internal variability of the climate system, whereas the IPCC's reasoning is weighted heavily in favor of climate model simulations and external forcing of climate change.

In principle, changes in climate on a wide range of timescales can also arise from variations within the climate system due to, for example, interactions between the oceans and the atmosphere; in this document, this is referred to as «internal climate variability».

The United Nations Framework Convention on Climate Change (UNFCCC), in its Article 1, defines climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&Climate Change (UNFCCC), in its Article 1, defines climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&rChange (UNFCCC), in its Article 1, defines climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&climate change as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&rchange as: «a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&rchange of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods&climate variability observed over comparable time periods».

WMO will issue its full Statement on the State of the Climate in 2017 in March which will provide a comprehensive overview of temperature variability and trends, high - impact events, and long - term indicators of climate change such as increasing carbon dioxide concentrations, Arctic and Antarctic sea ice, sea level rise and ocean acidifiClimate in 2017 in March which will provide a comprehensive overview of temperature variability and trends, high - impact events, and long - term indicators of climate change such as increasing carbon dioxide concentrations, Arctic and Antarctic sea ice, sea level rise and ocean acidificlimate change such as increasing carbon dioxide concentrations, Arctic and Antarctic sea ice, sea level rise and ocean acidification.

Variability in the marine carbon cycle has been observed in response to physical changes associated with the dominant modes of climate variability such as El Niño events and the PDO (Feely et al., 1999; Takahashi et al., 2006), and the NAO (Bates et al., 2002; Johnson and GruVariability in the marine carbon cycle has been observed in response to physical changes associated with the dominant modes of climate variability such as El Niño events and the PDO (Feely et al., 1999; Takahashi et al., 2006), and the NAO (Bates et al., 2002; Johnson and Gruvariability such as El Niño events and the PDO (Feely et al., 1999; Takahashi et al., 2006), and the NAO (Bates et al., 2002; Johnson and Gruber, 2007).

Unusual climate phenomena identified by some as «climate changes» are regularly attributed at WUWT to natural variability, and as such are not viewed as «changes.»

Many regional climate changes can be described in terms of preferred patterns of climate variability and therefore as changes in the occurrence of indices that characterise the strength and phase of these patterns.

The groundwater table in the Central Valley has been declining to such a degree that it requires a deeper understanding of the temporal dynamics of drought as well as their dependence on regional climate variability and change.

Most authors identify government practices as being far more influential drivers than climate variability, noting also that similar changes in climate did not stimulate conflicts of the same magnitude in neighboring regions, and that in the past people in Darfur were able to cope with climate variability in ways that avoided large scale violence.

The inclusion of climate variability and change in understanding human vulnerability and adaptation is being increasingly explored at household and community levels, as well as though regional agro-climatological studies in Africa (e.g., Verhagen et al., 2001).