Sentences with phrase «models and observations suggest»

Both the models and observations suggest this signal has only recently emerged from the background noise of natural variability.»
In addition, climate models and observations suggest that there may be modes of variability which act on multi-decadal timescales, although understanding of such modes is currently limited3.
The researchers noted in today's (Mar. 27) issue of Scientific Reports that «Both the models and observations suggest this signal has only recently emerged from the background noise of natural variability.»
Both computer modelling and observation suggest that these crops are fully pollinated by wild bees.

Not exact matches

Computer modeling and satellite observations suggest that these tiny particles can increase storm - cloud cover over certain regions of the North Pacific by 20 to 50 percent, enough to alter storm tracks in some cases.
Previous research has suggested a connection between coal - burning and the Sahel drought, but this was the first study that used decades of historical observations to find that this drought was part of a global shift in tropical rainfall, and then used multiple climate models to determine why.
«There have been some idealized studies using models, and even some indirect observations off the ice shelves, suggesting that El Niño might significantly affect some of these shelves, but we had no actual ice - shelf observations.
They go on to suggest that «lowering levels of TNF may be an effective strategy in improving host defense against S. pneumoniae in older adults,» and that, «although it may be counterintuitive to limit inflammatory responses during a bacterial infection, [some existing] clinical observations and our animal model indicate that anti-bacterial strategies need to be tailored to the age of the host.»
But Spracklen's study suggests both the climate model projections and the observations may be correct.
«We built several models of equal quality from the photometric data, but we favored a model made of two lobes since some of the best adaptive optics observations suggest that the Trojan asteroid has a dual structure,» said Josef Durech, co-author and researcher at the Charles University in Prague.
Based on model experiments, it has been suggested that errors resulting from the highly inhomogeneous distribution of ocean observations in space and time (see Appendix 5.
This observation suggests that subretinal localization of hNPCctx is necessary and sufficient to promote anatomic rescue of the ONL in this model.
The analysis of processes contributing to climate feedbacks in models and recent studies based on large ensembles of models suggest that in the future it may be possible to use observations to narrow the current spread in model projections of climate change.
The basic idea is that across the CMIP3 models there was a strong correlation of mid-tropospheric humidity variations with the model sensitivity, and combined with observations of the real world variations, this gives a way to suggest which models are most realistic, and by extension, what sensitivities are more likely.
Soon after the demonstration lesson or modeling experience, experienced practitioners suggested that the teacher and teacher leader discuss what the teacher understood from his / her observation.
And in all 8 models the point estimates suggest that a standard deviation improvement in classroom observation or student survey results is associated with less than a.1 standard deviation increase in test score gains.
Proposed causes for human IBD include defective immunoregulation of the gut - associated lymphoid tissue that may be precipitated by permeability defects, 14 infectious and parasitic agents, 15,16 and dietary allergies.13, 17 There is provocative evidence from clinical observations and animal models to incriminate normal luminal bacteria or bacterial products in the initiation and perpetuation of canine IBD.18, 19 The clinical response to hypoallergenic or elimination diets suggest that dietary factors may influence the pathogenesis of canine IBD.8 - 11 The term «hypoallergenic» refers to a diet that is generally free of additives and preservatives, and contains a hydrolyzed protein source.
Data from satellite observations «suggest that greenhouse models ignore negative feedback produced by clouds and by water vapor, that diminish the warming effects» of human carbon dioxide emissions.
The basic idea is that across the CMIP3 models there was a strong correlation of mid-tropospheric humidity variations with the model sensitivity, and combined with observations of the real world variations, this gives a way to suggest which models are most realistic, and by extension, what sensitivities are more likely.
The bottom line in this analysis is that both observations of the past decades and models looking forward to the future do not suggest that one can explain the heavy rains of Harvey by global warming, and folks that are suggesting it are poorly informing the public and decision makers.
The GRACE observations over Antarctica suggest a near - zero change due to combined ice and solid earth mass redistribution; the magnitude of our GIA correction is substantially smaller than previous models have suggested and hence we produce a systematically lower estimate of ice mass change from GRACE data: we estimate that Antarctica has lost 69 ± 18 Gigatonnes per year (Gt / yr) into the oceans over 2002 - 2010 — equivalent to +0.19 mm / yr globally - averaged sea level change, or about 6 % of the sea - level change during that period.
While there has been warm water building up in the pacific, and this warm water is highly correlated to El Nino, and most of the models suggest there will be an El nino (because of these observations rather than any form of «forecast skill»), that does not mean 2014 will be an El nino.
By constraining A through observations (grey bar), this example suggests that some models are more realistic (models 14 -15-17-18-22) and, by inference, provide more realistic future climate sensitivities.
Both theory and models predict the SIE in the Antarctic to decrease.That both CMIP5 and PMIP3 (paleo) fail to capture both observations (The spreads are in the Mkm ^ 2) and theoretical expectations suggest that systemic bias in the models.
«The satellite observations suggest there is much more energy lost to space during and after warming than the climate models show,» Spencer said in a July 26 University of Alabama press release.
A recent study by Cowtan et al. (paper here) suggests that accounting for these biases between the global temperature record and those taken from climate models reduces the divergence in trend between models and observations since 1975 by over a third.
But recent observations and model results done in the context of the annular modes suggest the coupling is two - way.
It would not have occurred to me to suggest that they delete both figures, concoct a new one that obscures the AR4 uncertainty ranges in a spaghetti format, and double down on text that claims the observations match the models.
Observations and model simulations suggest that even though global warming is set into motion by greenhouse gases that reduce OLR, it is ultimately sustained by the climate feedbacks that enhance ASR.»
The issue is the time of the year, latitude and type.The Krakatoa problem is well known eg Stenchikov 2006 ie that the models over estimate the global forcing.Hansen suggested that the observations were incorrect, however the Giss model gets the AO sign incorrect and arctic central temps incorrect in scale and time so.This is due to the incorrect heteregenous chemistry at high latitudes eg chapter3 WMO 2003, Ozone assessment 2011.
Both observations and model simulations implicate changes in the strength of the THC as the primary source of the multi-decadal variability, and suggest a possible oscillatory component to its behaviour (Delworth and Mann, 2000; Latif, 2001; Sutton and Hodson, 2003; Knight et al., 2005).
Direct measurements of the AMOC are only available for the past ten years or so, but Yeager et al. present a combination of observation - and model - based evidence that suggests that the Atlantic thermohaline circulation (THC, which is closely related to AMOC) transitioned from a weak state in the 1970s to a strong state in the 1990s and that this strengthening contributed to the accelerated rate of winter sea ice loss that was observed in the late 1990s.
It's interesting to note that while the result of a muted precipitation response to global warming appears to be theoretically sound and robust across models, satellite observations suggest that precipitation is increasing closer to 7 % per K, instead of 3 % per K (Wentz et al 2007).
Tegen et al. (2004) provided an updated, alternative estimate by comparing observations of visibility, as a proxy for dust events, from over 2,000 surface stations with model results, and suggested that only 5 to 7 % of mineral dust comes from anthropogenic agricultural sources.
(BTW, my 1 +1 parameter model does not contain a lag and its general success plus the observations of substantial fluctuations around the mean it predicts suggest that the Earth is never substantively in radiative imbalance with some sort of serious lag.
Spencer & Braswell (2008) found: «we obtain positive cloud feedback biases in the range -0.3 to -0.8 Wm ^ -2 K ^ -1... our results suggest the possibility of an even larger discrepancy between models and observations than is currently realized» See Spencer's discussion on Foster's comments «As can be seen, most models exhibit large biases — as much as 50 deg.
The observational and model results broadly support our hypothesis, but suggest that further work is needed to diagnose the causes of the high - latitude circulation trends in models and observations.
Overall, these results suggest that the «models are statistically indistinguishable from the truth» paradigm, which was used in the main text, is more appropriate to ensure consistency between models and observations, and avoids over emphasizing the climate models outputs.
However, limited observations from the late 19th and early 20th centuries combined with models suggest that tropospheric O3 has increased from a global mean value of 25 DU (where 1 DU = 2.71016 O3 molecules / cm2) in the pre-industrial era to 34 DU today.
Satellite observations suggest that GH models ignore negative feedbacks, produced by clouds and by water vapor, that diminish the warming effects of carbon dioxide.»
So, we have reasonable constraints that suggest the feedbacks are net positive (amplifying), observations / theory / models that explain the bulk of that effect and remaining uncertainties on one (key) part of it.
And now some recently recovered observations and new modeling suggest that Arctic sea ice grew for a period between 1950 and 19And now some recently recovered observations and new modeling suggest that Arctic sea ice grew for a period between 1950 and 19and new modeling suggest that Arctic sea ice grew for a period between 1950 and 19and 1975.
Since ocean temperature anomalies in the canonical Niño 3.4 region are now above 2 C — which are record values for the calendar month and not too far from their highest values ever observed at any time of year — current observations in the real world suggests that the models are very much on track.
The lack of an oscillatory model signal suggests that the inter-decadal global mean surface temperature signal derived from the observations and shown in Figs. 1A and 2B is indeed the signature of natural long - term climate variability.
Our understanding of the various feedbacks - and it is a very complex system - both through observations and modelling, suggests that we won't see those catastrophic changes, in terms of the physical system.
I also suggest you read the paper by Easterling and Wehner (2009)(Google scholar will find it easily), which shows that similar slowdowns have ocurred before in the OBSERVATIONS as well as in the output of individual model runs.
Invoking Buckminster Fuller's observation that you can not change things by fighting reality and instead must build a new model that makes the existing one obsolete, we suggested that, ultimately, legal design could go as far as to build a completely new model for how we handle «legal» issues.
Consistent with these observations, the transition to parenting literature suggests that parent personality is an important influence on parenting behavior (Heinicke, 2002), and the attachment literature suggests that parental internal working models of relationships predict parenting behaviors (Madigan et al., 2006).
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