Sentences with phrase «climate observational record»

According to Stone, cases where the link between human - generated greenhouse gas emissions and local warming trends were weak were often due to the fact that the climate observational record was insufficient in those regions to build a clear picture about what has been happening over the past several decades.

Not exact matches

Those heat extremes, the hottest in the country's observational record, were likely caused by man - made climate change, according to a new study accepted for publication in the journal Geophysical Research Letters.

We've narrowed the uncertainty in surface warming projections by generating thousands of climate simulations that each closely match observational records for nine key climate metrics, including warming and ocean heat content.»

Co-author of the study Professor Ian Hall, from the School of Earth and Ocean Sciences, said: «Our results highlight the challenge of basing our understanding of the climate system on generally short observational records.

Co-author Nerilie Abram, from the Australian National University, said: «In order to better understand climate change in Antarctica, we need continued climate measurements in the Antarctic and Southern Ocean, and extension of these short observational records with past climate reconstructions and climate modelling.»

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).

Indeed, it is not clear how best to diagnose a regional forcing and response in the observational record; regional forcings can lead to global climate responses, while global forcings can be associated with regional climate responses.

The attribution calculation in the IPCC AR5 is based on fingerprint studies, where the spatial patterns of the temperature response of the climate models to various agents are scaled to best reconstruct the temperature record from observational constraints.

As early as February 2016, climate scientists were making evidence - based predictions that 2016 would become the hottest year in the observational record.

The day - by - day, month - by - month, year - by - year, etc. sequencing of values, however, will not correspond to observations, since climate models solve a «boundary value problem» and are not constrained to reproduce the timing of natural climate variability (e.g., El Niño - Southern Oscillation) in the observational record.

Observational records show that anthropogenic - influenced climate change has already had a profound impact on global and U.S. warm season climate over the past 30 years, and there is increasing contrast between geographic regions that are climatologically wet and dry - the hypothesis that the «wet gets wetter, dry gets drier» is seen in a new paper by Chang et al..

It is likely that all of these have left their mark on the climate signal, but the room within which they may have operated is limited by the reasonably close approximation between the known non-chaotic signals and the observational record.

Studies surveyed Millar, R. et al. (2017) Emission budgets and pathways consistent with limiting warming to 1.5 C, Nature Geophysics, doi: 10.1038 / ngeo3031 Matthews, H.D., et al. (2017) Estimating Carbon Budgets for Ambitious Climate Targets, Current Climate Change Reports, doi: 10.1007 / s40641 -017-0055-0 Goodwin, P., et al. (2018) Pathways to 1.5 C and 2C warming based on observational and geological constraints, Nature Geophysics, doi: 10.1038 / s41561 -017-0054-8 Schurer, A.P., et al. (2018) Interpretations of the Paris climate target, Nature Geophysics, doi: 10.1038 / s41561 -018-0086-8 Tokarska, K., and Gillett, N. (2018) Cumulative carbon emissions budgets consistent with 1.5 C global warming, Nature Climate Change, doi: 10.1038 / s41558 -018-0118-9 Millar, R., and Friedlingstein, P. (2018) The utility of the historical record for assessing the transient climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20Climate Targets, Current Climate Change Reports, doi: 10.1007 / s40641 -017-0055-0 Goodwin, P., et al. (2018) Pathways to 1.5 C and 2C warming based on observational and geological constraints, Nature Geophysics, doi: 10.1038 / s41561 -017-0054-8 Schurer, A.P., et al. (2018) Interpretations of the Paris climate target, Nature Geophysics, doi: 10.1038 / s41561 -018-0086-8 Tokarska, K., and Gillett, N. (2018) Cumulative carbon emissions budgets consistent with 1.5 C global warming, Nature Climate Change, doi: 10.1038 / s41558 -018-0118-9 Millar, R., and Friedlingstein, P. (2018) The utility of the historical record for assessing the transient climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20Climate Change Reports, doi: 10.1007 / s40641 -017-0055-0 Goodwin, P., et al. (2018) Pathways to 1.5 C and 2C warming based on observational and geological constraints, Nature Geophysics, doi: 10.1038 / s41561 -017-0054-8 Schurer, A.P., et al. (2018) Interpretations of the Paris climate target, Nature Geophysics, doi: 10.1038 / s41561 -018-0086-8 Tokarska, K., and Gillett, N. (2018) Cumulative carbon emissions budgets consistent with 1.5 C global warming, Nature Climate Change, doi: 10.1038 / s41558 -018-0118-9 Millar, R., and Friedlingstein, P. (2018) The utility of the historical record for assessing the transient climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20climate target, Nature Geophysics, doi: 10.1038 / s41561 -018-0086-8 Tokarska, K., and Gillett, N. (2018) Cumulative carbon emissions budgets consistent with 1.5 C global warming, Nature Climate Change, doi: 10.1038 / s41558 -018-0118-9 Millar, R., and Friedlingstein, P. (2018) The utility of the historical record for assessing the transient climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20Climate Change, doi: 10.1038 / s41558 -018-0118-9 Millar, R., and Friedlingstein, P. (2018) The utility of the historical record for assessing the transient climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20climate response to cumulative emissions, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0449 Lowe, J.A., and Bernie, D. (2018) The impact of Earth system feedbacks on carbon budgets and climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20climate response, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2017.0263 Rogelj, J., et al. (2018) Scenarios towards limiting global mean temperature increase below 1.5 C, Nature Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.20Climate Change, doi: 10.1038 / s41558 -018-0091-3 Kriegler, E., et al. (2018) Pathways limiting warming to 1.5 °C: A tale of turning around in no time, Philosophical Transactions of the Royal Society A, doi: 10.1098 / rsta.2016.0457

Steve, you write «c) The observational record is still too short to constrain climate sensitivity (in part because of lack of knowledge about some of the forcings), so weakening evidence from this record doesn't change the result.»

In one method, a statistical analysis of observational records was performed (using the KNMI Climate Explorer) to compare this summer's heat with summers during the early part of the century, before global warming played a significant role in our cClimate Explorer) to compare this summer's heat with summers during the early part of the century, before global warming played a significant role in our climateclimate.

While the statistics of 30 - year (or longer) NAO trends and associated surface climate impacts can not be reliably determined from the short observational record, we have made use of a simple relationship between the statistics of trends of any length and the statistics of the interannual variability, provided the time series is Gaussian (Thompson et al. 2015).

Scientists don't have good enough long - term observational records of tornadoes to tell, if climate change is affecting tornadoes, and climate models don't shed any light on the issue, either.

Evidence exists in recorded local observational accounts as well as in the peer - reviewed scientific literature of the cumulative effects of climate - related environmental change on Native communities in Alaska; these effects combine with other socioeconomic stressors to strain rural Native communities (Ch.

The more direct measure of global warming provided by measuring the energy content of the climate system avoids many of these problems, although the observational record is shorter and less complete (e.g. Church et al 2011).

«While the new satellite instruments discussed in this study have clearly advanced the state - of - the - art in cloud - radiation observational capabilities, there is a critical need to extend the length of these records over multiple decades and further improve their accuracy in order to quantify how clouds are changing in a warmer climate and how cloud changes impact the Earth's radiation budget.

«Evidence for climate change in the satellite cloud record» «Cloud feedback mechanisms and their representation in global climate models» «A net decrease in the Earth's cloud, aerosol, and surface 340 nm reflectivity during the past 33 yr (1979 — 2011)» «New observational evidence for a positive cloud feedback that amplifies the Atlantic Multidecadal Oscillation» «Impact of dataset choice on calculations of the short - term cloud feedback»

Such proxy material as tree rings can not be as accurate as instrumental records or detailed reconstructions using a variety of observational material - but there are nevertheless a number of obvious consequences that those who debate climate as either «realists» or «sceptics» need to face when considering this data;

This claim makes little sense even on its face, as the observational record tells us nothing about the distant past, nor about the present climate in context of the past.

Reliable assessments of these contributing factors depend critically on reliable estimations of natural climate variability, either from the observational record or from coupled climate model simulations without anthropogenic forcings.

A large amount of observational evidence besides the temperature records shows that Earth's climate is changing.

This technical document provides guidelines with the aim to provide managers and operators of climate monitoring networks with a set of recommended procedures / practices by which change can be managed in the observational programs in a manner that best maintains the required integrity of the climate record.

It was this latter date when the CET instrumental records began, and we can usefully bookend this era with two pieces of observational climate information.

Observational climate datasets are regularly updated to include newly digitised historical paper records and improved analysis techniques.

B) Im interested because the temperature record is important to observational estimates of climate sensitivity.

Observational records of tropical storm and hurricanes are essential in order to discern how climatic changes have influenced tropical storms and hurricanes, and to build predictive understanding of the influence of climate on hurricanes.

We make specific recommendations for using past climate records to improve our understanding of the relationship of radiative forcing to climate change and for developing an observational strategy aimed at continuous monitoring of climate forcing variables for the indefinite future.

However, the model predictions of the climate of the end of this century lie largely outside of this evaluation period, due to the projected future CO2 forcing being significantly greater than that seen in the observational record.

Pepijn Bakker and colleagues combine observational records of iceberg - rafted debris with climate models to show that the climate fluctuations seen during the Holocene may have been driven by small variations in the discharge of freshwater from the Antarctic Ice Sheet, amplified through the climate system.

Although there exist observational estimates of the SAMOC, the decadal and multi-decadal variability of the SAMOC and its influence on climate and weather can not be assessed due to its short temporal record.