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Role of the Atmospheric and Oceanic Circulation in the Tropical
Role of the Atmospheric and Oceanic Circulation in the Tropical

... than) that in YL05, which has an atmospheric resolution of R15 with 18 vertical layers in a hybrid sigmapressure coordinate system and an oceanic resolution of 1.4° latitude ⫻ 2.8° longitude ⫻ 32 vertical levels. For the model’s setup and spinup details, please refer to Furevik et al. (2003) and Ben ...
The Effect of Potential Future Climate Change on the Marine
The Effect of Potential Future Climate Change on the Marine

... typically exhibits methane concentrations that are well below those needed to saturate the pore waters and form methane hydrate (Dickens 2001). To explore the effect of climate change on the actual hydrate inventory, a first-order estimate of the volume of hydrate present within the GHSZ is made usi ...
North American megadroughts in the Common Era
North American megadroughts in the Common Era

... discussion of the evidence, primarily model based, for various hypothesized megadrought drivers, including internal atmospheric variability, persistent SST states, and land–atmosphere interactions. We conclude with a discussion of anthropogenic climate change and megadrought risk, including uncertai ...
Climate change in Australia | East Coast cluster report
Climate change in Australia | East Coast cluster report

... Projections are generally given for two 20-year time periods: the near future 2020–2039 (herein referred to as 2030) and late in the century 2080–2099 (herein referred to as 2090). The spread of model results are presented as the range between the 10th and 90th percentile in the CMIP5 ensemble outpu ...
Simulated interannual variation in summertime atmospheric
Simulated interannual variation in summertime atmospheric

... website; http://www.ipcc-ddc.cru.uea.ac.uk). This means that summertime land–sea temperature contrast increases, and it is inferred that monsoonal circulation over East Asia is intensified (IPCC 2001). However, there is little agreement so far on the future summertime East Asian climate, which is pr ...
Acceleration technique for Milankovitch type forcing in a coupled
Acceleration technique for Milankovitch type forcing in a coupled

... The temperature evolution of the Holocene is also important in light of recent climate change. The new third assessment report of the Intergovernmental Panel on Climate Change (IPCC 2001) stated a global surface air temperature increase during the past century by 0.6 0.2 Kelvin (K). On the longer pe ...
- Wiley Online Library
- Wiley Online Library

... the dependence increased trend uncertainty by about 50%. If we should increase the error bars in Figure 1 by 50%, they would still be small compared with the year-to-year fluctuations seen, and we may believe that these year-toyear fluctuations are real geophysical changes and not just measurement unc ...
How closely do changes in surface and column water vapor follow
How closely do changes in surface and column water vapor follow

... almost no effect on the rate of change of global water vapor, although, as shown in figure 1, their impact is of order 1%/K at many latitudes. Interestingly, observed interannual variations in free-tropospheric relative humidity also tend to have regions of opposing changes so that the global-mean v ...
Climate-driven expansion of blanket bogs in Britain during the
Climate-driven expansion of blanket bogs in Britain during the

... basal peat deposits, or there were sufficient radiocarbon dates to develop an age-depth model allowing the basal age to be well constrained. The extrapolated dates may provide more accurate estimates of basal ages than radiocarbon assays of basal peats, which often yield young ages because of contam ...
a case study in the Italian Alp
a case study in the Italian Alp

... linking slope hydrological/stability modelling with projections of global warming due to the enhanced greenhouse effect. The latter is the topic of the present paper. Large-scale projections of global warming are derived from general circulation models (GCMs), which at present provide the physically ...
How the Second Delta Committee Set the
How the Second Delta Committee Set the

... neglected the committee’s throughput. We did not account for the differences between individual members of the committee, or the process leading to the selection of the committee’s members, but instead regarded the whole committee as one single change agent. The paper by Boezeman et al., Verduijn et ...
Fisheries-dependent indicators of climate change in Western Australia
Fisheries-dependent indicators of climate change in Western Australia

... areas where data are currently being gathered in a number of projects in, or related to Project 4.2, to provide information on the current status of these systems, in terms of both community structure and function. Ecosystem modelling frameworks have the ability to guide the sort of data which shoul ...
Climate Change 2014: Impacts, Adaptation, and Vulnerability
Climate Change 2014: Impacts, Adaptation, and Vulnerability

... been increased heat-related mortality and decreased cold-related mortality in some regions as a result of warming (medium confidence). Local changes in temperature and rainfall have altered the distribution of some water-borne illnesses and disease vectors (medium confidence).12 Differences in vulne ...
IPCC 5-2014 WG-2 Summary.pdf
IPCC 5-2014 WG-2 Summary.pdf

... been increased heat-related mortality and decreased cold-related mortality in some regions as a result of warming (medium confidence). Local changes in temperature and rainfall have altered the distribution of some water-borne illnesses and disease vectors (medium confidence).12 Differences in vulne ...
Working Group I Fifth Assessment Report
Working Group I Fifth Assessment Report

... Human activities are continuing to affect the Earth’s energy budget by changing the emissions and resulting atmospheric concentrations of radiatively important gases and aerosols and by changing land surface properties. Previous assessments have already shown through multiple lines of evidence that ...
NBER WORKING PAPER SERIES TEMPERATURE, HUMAN HEALTH, AND ADAPTATION:
NBER WORKING PAPER SERIES TEMPERATURE, HUMAN HEALTH, AND ADAPTATION:

... is now recognized as one of the most important impact margins of climate change, and thus is a global  research priority. A vast literature – almost exclusively in public health and epidemiology – has emerged  to document the excess morbidity and mortality associated with exposure to extreme tempera ...
An assessment of the likely consequences of global warming on the
An assessment of the likely consequences of global warming on the

... knowledge plus other factors. Part 3 describes the analytical methods used in this report as well as the development of numerical methods for future adaptation procedures. All the analyses and comments in this report refer to South African conditions, although I believe that they are generally appli ...
Expert Judgement, Meta-Analysis and Participatory Risk Analysis 1
Expert Judgement, Meta-Analysis and Participatory Risk Analysis 1

... methods for expert judgement data have not been considered. Indeed, one might anticipate logical positivist arguments that evidence-based decision making should draw solely upon objective empirical data. It is often assumed that evidence-based decision making should be ‘objective’, but evidence nee ...
Recent and future changes in the combination of annual
Recent and future changes in the combination of annual

... China Meteorological Data Sharing Service System (http://cdc.nmic.cn/home.do). Data quality control, especially for data homogeneity tests, is important for detecting climate changes. Data quality control efforts were comprised of two parts: (1) checking for erroneous data (e.g. negative precipitati ...
Extreme Weather Events
Extreme Weather Events

... the 1980s and 90s, but it failed miserably when temperatures plateaued in the new millennium. ...
Granger causality from changes in level of atmospheric CO2 to
Granger causality from changes in level of atmospheric CO2 to

... explanations into two categories. The first involves a reduction in radiative forcing: by a decrease in stratospheric water vapour, an increase in background stratospheric volcanic aerosols, by 17 small volcano eruptions since 1999, increasing coal-burning in China, the indirect effect of time-varyi ...
Paleoclimate forcing by the solar De Vries/Suess cycle
Paleoclimate forcing by the solar De Vries/Suess cycle

... show a precise linear dependence of solar magnetic field (thus solar activity) and Earth temperature and estimate the influence of the Sun on the 20th century Earth climate change up to 100 %. Raspopov et al. (2008) find a clear ∼ 200 year cycle and relate it with the solar De Vries/Suess cycle. How ...
Aqua Introductory Research Essay 2016:3
Aqua Introductory Research Essay 2016:3

... species, and this has been referred to as a composition shift (Ohlberger, 2013). Moreover, stage-specific thermal optima can alter the age-structure and hence the mean size of a population, if for instance temperature induces a disproportional increase in mortality on older and larger individuals ( ...
How closely do changes in surface and column water vapor follow
How closely do changes in surface and column water vapor follow

... those in column water vapor (figure 1). The implied decreases in mean relative humidity at roughly 10◦ –50◦ latitude in both hemispheres are consistent with previously reported decreases in free-tropospheric relative humidity at similar latitudes in simulations of global warming (Mitchell and Ingram ...
IPCC 5: Synthesis - Summary
IPCC 5: Synthesis - Summary

... impacts globally (high confidence). Mitigation involves some level of co-benefits and of risks due to adverse side-effects, but these risks do not involve the same possibility of severe, widespread, and irreversible impacts as risks from climate change, increasing the benefits from near-term mitigat ...
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North Report

The North Report was a 2006 report evaluating reconstructions of the temperature record of the past two millennia, providing an overview of the state of the science and the implications for understanding of global warming. It was produced by a National Research Council committee, chaired by Gerald North, at the request of Representative Sherwood Boehlert as chairman of the U.S. House of Representatives Committee on Science.These reconstructions had been dubbed ""hockey stick graphs"" after the 1999 reconstruction by Mann, Bradley and Hughes (MBH99), which used the methodology of their 1998 reconstruction covering 600 years (MBH98). A graph based on MBH99 was featured prominently in the 2001 IPCC Third Assessment Report (TAR), and became a focus of the global warming controversy over the 1997 Kyoto Protocol. It was disputed by various contrarians, and in the politicisation of this hockey stick controversy the New York Times of 14 February 2005 hailed a paper by businessman Stephen McIntyre and economist Ross McKitrick (MM05) as undermining the scientific consensus behind the Kyoto agreement. On 23 June 2005, Rep. Joe Barton, chairman of the House Committee on Energy and Commerce, with Ed Whitfield, Chairman of the Subcommittee on Oversight and Investigations, wrote joint letters referring to issues raised by the Wall Street Journal article, and demanding that Mann, Bradley and Hughes provide full records on their data and methods, finances and careers, information about grants provided to the institutions they had worked for, and the exact computer codes used to generate their results. Boehlert said this was a ""misguided and illegitimate investigation"" into something that should properly be under the jurisdiction of the Science Committee, and in November 2005 after Barton dismissed the offer of an independent investigation organised by the U.S. National Academy of Sciences, Boehlert requested the review, which became the North Report.The North Report went through a rigorous review process, and was published on 22 June 2006. It concluded ""with a high level of confidence that global mean surface temperature was higher during the last few decades of the 20th century than during any comparable period during the preceding four centuries"", justified by consistent evidence from a wide variety of geographically diverse proxies, but ""Less confidence can be placed in large-scale surface temperature reconstructions for the period from 900 to 1600"". It broadly agreed with the basic findings of the original MBH studies, which subsequently been supported by other reconstructions and proxy records, while emphasising uncertainties over earlier periods. The principal component analysis methodology that McIntyre and McKitrick had contested had a small tendency to bias results so was not recommended—but it had little influence on the final reconstructions, and other methods produced similar results.
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