Sentences with phrase «flat temperature trend»

Going back to the example of a hill, let's say a station moves from valley to hilltop, with a slight overlap in time, and both locations have a flat temperature trend, like this: Valley: 2 2 2 2 x x x Hilltop: x x x 4 4 4 4 Then the average of the two is: 2 2 2 3 4 4 4.

When skeptics used the raw, «unadjusted» numbers, they got Figure 8, which shows a flat temperature trend:

This variation plus a constant.5 deg / century trend accounts for all of the observed trend since 1850, the increase in slope during the 80s and 90s and the current flat temperature trend.

Can 20 years of flat temperature trend plus 12 years of increase equal a long term trend?

Not exact matches

The Goddard analysis challenges in particular a respected and widely quoted study by climatologist Susan Solomon and colleagues at the National Center for Atmospheric Research that states the trend in global surface temperatures «has been nearly flat since the 1990s.»

Anyway tropospheric temperature trends and surface trends are broadly consistent with a flat period after WW2.

1958 — 1963 has essentially flat temperatures, then there is a big drop in 1964 followed by a steady upward trend from 1964 to 1988 (and, unfortunately for all us, on through to today).

I do seem to remember that the HadCRUT3 linear annual global temperature trend for the last 10 years was almost flat, though that may be an outdated recollection that doesn't include the recent record months that 2010 contained.

0.5 million km2 per decade in the last decades, the yearly average temperature trend was flat 1880 - 1920, +3.5 Â °C 1920 - 1930, variable (around a flat trend) 1930 - 1948, -3 Â °C 1949 - 1994, +3 Â °C 1995 - 2004 Even more interesting: the summer (June, July, August) temperatures dropped from average +7 Â °C in 1900 - 1980 to +3.1 Â °C in 1983, and slowly went up again to +6 Â °C in 2003 - 2004.

Given the decadal averages and the issue of what is meant by «the next» decade, Romm does have a point that the result of the paper could more clearly be described as representing «a period of flat global mean temperatures extending somewhat into the coming decade, following by a very rapid rise in temperature leaving the planet on its long - term trend line by 2030.»

Whether or not the current flat global tropospheric temperature trend turns to cooling or back to warming will most likely depend on what the sun does next.

We have to look elsewhere for the cause of the change in temperature trend to flat in BOTH stratosphere and troposphere that occurred in the middle and late 1990s.

The Earth's temperature has been flat to trending down.

But never mind which of the 3 scenarios is correct: If there is a common trend between CO2 / rise per year and global temperatures, then there is a severe problem for the extreemly flat Antarctic curves.

The trend itself is (near) independent of temperature, simply look at three different periods: 1959 - 1975 and 1998 - 2008 with near flat or even cooling temperatures and 1976 - 1997 with increasing temperatures.

Another thing: Regardsless what the source is for the rising trend of CO2, its the temperature sensitivity of CO2rise / year that gives the flat Antarctic curves problems.

Additionally, the observed surface temperature changes over the past decade are within the range of model predictions (Figure 6) and decadal periods of flat temperatures during an overall long - term warming trend are predicted by climate models (Easterling & Wehner 2009).

Linear trends are appropriate for the time period after 1990 where the data are described well by a linear trend plus interannual noise (that's why we show a linear trend for the satellite sea level in our paper), but they don't capture the longer - term climate evolution very well, e.g. the nearly flat temperatures up to 1980.

The HadCRUT4 global surface temperature database is flat between 2002 and 2014, a trend bound to be increased by the presence of high temperatures due to weather at the end of the database.

(The essentially flat temperature of 2000 - 2010 is real, and the trend for that decade can not be changed in 2020 by including the temperature for 2010 - 2020 unless you define decadal trend in some other way.)

However, I note that in my Hadcrut3 data, downloaded 14/10/2012 from http://www.cru.uea.ac.uk/cru/data/temperature/hadcrut3gl.txt, the global temperature is overall prettty flat during the 1980s within a longer warming trend.

Wide swings in temperature; a relatively flat trend starting in 1998 — 2000.

If you simply plot the average global temperatures, 1975 - present, you will see a continuing upward trend that slowed down around 1995 (due to Eastern SO2 Emissions offsetting Western SO2 reductions), but it has never been flat.

The flat trend in global surface temperatures may continue for another decade or two.»

Note, for example, how the temperature trend in the first decade of the 21st century was generally flat because an upward push by anthropogenic forces was temporarily offset by a downward pull as solar activity decreased and the oceans absorbed more heat than usual from the atmosphere (sea water temperatures continued to rise).»

The odd thing is that the result always shows a steep rising temperature trend when the neighbouring CLEAN RURAL data shows only a flat or a slightly rising trend.

The Marcott study is one that raised a stink because it was an attempt to create yet another «hockey stick» graph in which all of human history — this time, going back 11,000 years — shows a flat line of global temperatures, with only recent decades showing an alarming upward trend like the blade of a hockey stick.

First, this is a transient «offsetting» phase — as forcing continues and temperatures continue to rise, even the DJF NH winter flat trend will be overprinted.

Cohen and co-workers set out their hypothesis as to what might be causing this flat trend in boreal DJF temperatures in a separate study, also published this year, entitled Arctic warming, increasing snow cover and widespread boreal winter cooling:

The next figure shows the Hadley temperatures from 2000 - 2009, with the trend line (virtually flat) shown in green.

This difference explains why global temperature records based on HadSST tend to show flatter temperatures over the past 17 years, while the new NOAA record shows a more rapid trend.»

This would seem to support a luke - warmish interpretation: the temperature trend has not flat - lined recently, though the increase is currently decelerating at a rate that (if unchanged) would lead to zero growth by the end of the century.

Dr. Judith Curry recently compared five data sets of global temperatures and found that all but one show the warming trend has been essentially flat for various periods exceeding 10 years in length during the past 18 years.

It seems like the best thing to do would be to measure the difference between the measurement of choice (daily high, presumably, since we're in the business of talking about black - swan high - temperature events this time of year) and the trend line rather than a flat baseline.

, but that overall the temperature trend for the century was actually flat.

Rabbit Flat and Learmonth are located in the hot climates of the Northern Territory and WA's north - west coast, and are used as a variable in this analysis to examine the influence of local climates at new weather locations on Australia's averaged temperature trends.

If I'm reading this correctly, the last time there was a negative global land temperature trend was the late 1960's, with only two or three nearly flat trends very briefly since then?

and the BoM's WA temperature trend similarly accurate, the city's mean temperature was flat from 1994 to 2010, 1978 was the hottest mean year ever and WA had below - average temperatures in 2011.

A zero line, as the principle point of discussion of trends on this particular topic is flat or negative trend lines, would help indicate when the temperature plot falls from rising, for instance.

The observations of a global mean temperature «flat» with no linear trend since 1997 can not be discarded.

Because you are fitting to look for a trend * after * selecting the data that looks flat, the real 95 % confidence interval of the trend in temperature (or ocean heat content) over any of these intervals is much larger than what you are presumably calculating.

I'm reminded of some accusations when climategate broke that the New Zealand temperature record looked fudged, i.e. flat until the adjustments were made, at which point a warming trend appeared.

Looking at historical temperature trend data, and comparing it to assumed anthro forcing, I'd guess flat to cooling for a decade or so.

«Over relatively short, non-climate timescales (less than 20 - 30 years), these patterns of natural variability can lead to all kinds of changes in global and regional near - surface air temperature: flat, increasing, or even decreasing trends,»

The flat to down temperature trend of the last 17 or so years, and likely continued down trend clearly demonstrate the failure of the only part of CAGW that is used to scare us: The models.

The Tropical Tropopause Layer (TTL) is cooling, the stratosphere is drying, the TLT (temperature lower troposphere) trend seems warmer measured from the ground than the basically flat trend of the first couple of kilometers measured from space.

My take - away is that CAGW looks very unlikely, more unlikely every year the temperature continues to flat - line, and that skeptics, by calling attention to their distrust of motivation, are huting the more important goal of educating the public, politicians, and especially journalists that the longer term warming trend we're in is NOT catastrophic.

Leonard Weinstein: The flat to down temperature trend of the last 17 or so years, and likely continued down trend clearly demonstrate the failure of the only part of CAGW that is used to scare us: The models.

Granted, surface temperatures have only been measured since the 1950s on Antarctica, however, it would be interesting to see how well the climate models reproduced the flat or slightly cooling trend on Antarctica for the last 50 years as presented in TS.22.

Insisting on analysis broken out by Gregorian calendar decades allows you to discard the last three years of the current 17 year long flat trend, and it also allows you to lump the first four years of that trend in with six prior years that you freely admit lie on the other side of a discontinuity in the temperature record.