Sentences with phrase «year variability ranging»

After the station moved, between 1974 - 2004 Walpole temperatures averaged 2.89 + / - 1.29 F warmer than Medway, but with similar year - to - year variability ranging between 1.5 cooler one year to 4.5 warmer another.

Not exact matches

In fact, sample sex ratios collected for loggerhead turtles for more than 10 years in Palm Beach County, Fla. show significant variability, with highly female - biased ratios being produced over a wider range of temperatures than are found in many well - controlled laboratory studies.

Despite large year - to - year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].

In the next 50 years, even the lower limit of impending climate change — an additional global mean warming of 1 degree Celsius above the last decade — is far beyond the range of climate variability experienced during the past thousand years and poses global problems in planning for and adapting to it.

As to the bottom line, we are talking about changes to a fundamental part of the ocean carbon cycle, far outside the range of natural variability, that are irreversible and will last for thousands of years.

Global temperature has in recent years increased more slowly than before, but this is within the normal natural variability that always exists, and also within the range of predictions by climate models — even despite some cool forcing factors such as the deep solar minimum not included in the models.

Long - term climate variability is the range of temperatures and weather patterns experienced by the Earth over a scale of thousands of years.

Within the range of natural variability that has existed for the last thousand years?

Why not construct some emissions scenarios that cover what you think might happen over the next 50 (or 100) years, and then run those scenarios through a range of leading climate models, performing multiple runs for each model to capture both the uncertainty in the model physics and internal variability.

The fact that there is interdecadal variability (things have flattened out a bit over the past few years) is really nothing too shocking and fits well within the range of predictions.

Thus the core - mantle interaction is believed to dominate the variability over a wide range of timescales from years to centuries.

«The planet has warmed and cooled several times over the past 150 years, all within the range of natural climate variability.

We probably won't have a good idea of the range of natural variability of a few years, then we can find out if «sensitivity: really makes any sense as it is currently defined.

Our results show that this expected range resulting from internal variability of the NAO is substantial for both SAT and P trends over the next 30 years, and in the case of P can even change the sign of the trend.

In summary, our results show that in the CESM - LE, the range of uncertainty in projected NAO trends and associated influences on SAT and P over the next 30 years can be obtained to a large degree from the Gaussian statistics of NAO variability during the historical period, with some regional exceptions possibly associated with AMOC variability.

That's your problem, you want exactly, when the best nature can give you is within the range of year to year natural variability.

A key question was: were there systematic or physical changes that contributed to a greater observed sea ice extent this year or was it within the range of natural variability?

On short time scales (decade to centuries), there is no satisfactory way of sorting out forced climate variability from natural internal climate variability unless you have a really good climate model that can adequately handle the natural internal variability on the range of time scales from years to millennia.

It looks like the authors have calculated two standard deviations from the 10 - year SMOOTHED curve to assess the range of natural variability.

Science assessments indicate that human activities are moving several of Earth's sub-systems outside the range of natural variability typical for the previous 500,000 years (1, 2).

The flat period of 15 years fits in the expected range of variability, but its likelihood is certainly rather low, perhaps of the order of 5 %.

Despite large year - to - year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].

What the paleoclimate information does indicate is that the warmth of the past 50 years is not outside the range of natural variability and is no cause for alarm.

The observed recession of glaciers (Box 1.1) during the last century is larger than at any time over at least the last 5,000 years, is outside of the range of normal climate variability, and is probably induced by anthropogenic warming (Jansen et al., 2007).

Climate - Climate in a narrow sense is usually defined as the average weather, or more rigorously, as the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands or millions of years.

Phase relationships between hemispheric and global climate reconstructions from tree - rings and the solar irradiance time series indicate a lag of ~ 10 years (range, 5 - 20 years), with solar changes leading temperature anomalies, consistent with both climate modeling and other climate and solar variability studies (Eichler et al., 2009; Breitenmoser et al., 2012; Anchukaitis et al., 2017).

However, excluding the most recent 30 years, as Hansen does, is question - begging — it assumes what Hansen sets out to prove, namely, that the current climate is outside the range of natural variability.

This year's late winter heat wave over much of the United States, dubbed «March Madness,» has been cited as evidence that human - induced global warming is causing the climate system to stray far outside its normal range of variability.

Modeling studies suggest that we need ~ 500 years of observations to sample the full range of ENSO decadal variability (e.g., Wittenberg 2009).

It seemed that the present day was likely not much or very little outside the range of climate variability for the last 2000 years and that no government action or policy was required or would be useful with regard to postulated anthropogenic CO2 driven climate change.

Within this uncertainty range, this reconstruction suggests that the pronounced decline in summer Arctic sea ice cover that began in the late twentieth century is unprecedented in both magnitude and duration when compared with the range of variability of the previous roughly 1,450 years.

Present - day ocean models do have some rudimentary capability to model El Nino - like variability, but they are not yet able to reliably simulate decadal - type variability, even though 1000 - year climate runs exhibit variability over a broad range of time scales.

Atmospheric processes that generate internal variability are known to operate on time scales ranging from virtually instantaneous (e.g., condensation of water vapour in clouds) up to years (e.g., troposphere - stratosphere or inter-hemispheric exchange).

The research demonstrates that modern snowfall in the iconic Alaska Range is unprecedented for at least the past 1200 years and far exceeds normal variability.

Variables explaining a significant component of yield variance are nitrogen, irrigation water, and precipitation; temperature was a less significant component of yield variation within the range of observed year - to - year variability at the study sites.

Roy Spencer, principal research scientist at the University of Alabama - Huntsville, says, «The main thing they're trying to show is that the recent warming and moistening in the last 30 years is outside the range of natural variability, and that man is causing the warming.

While sea ice was more extensive in 2013 than in other recent years, it fits into range of variability characteristic of the time period 2007 - 2011 with a similar path of summer ice evolution as 2009 (Figure 2).

Climate, sometimes understood as the «average weather,» is defined as the measurement of the mean and variability of relevant quantities of certain variables (such as temperature, precipitation or wind) over a period of time, ranging from months to thousands or millions of years.