Sentences with phrase «cyclical temperature trends»

But in each case those cyclical temperature trends were homogenized to look like the linear urbanized trend at Marysville.

Not exact matches

Given how much yelling takes place on the Internet, talk radio, and elsewhere over short - term cool and hot spells in relation to global warming, I wanted to find out whether anyone had generated a decent decades - long graph of global temperature trends accounting for, and erasing, the short - term up - and - down flickers from the cyclical shift in the tropical Pacific Ocean known as the El Niño — Southern Oscillation, or ENSO, cycle.

My opinion expressed elsewhere is that almost all the temperature changes we observe over periods of less than a century are caused by cyclical changes in the rate of energy emission from the oceans with the solar effect only providing a slow background trend of warming or cooling for several centuries at a time.

I mean, given the noise in the temperature data + assorted cyclical phenomena of various time scales, shouldn't someone have given a numerical estimate as to how long it would be before any warming trend could be detected with any statistical reliability?

As I look at the global mean temperature trend for the 20th century, I see a cyclical pattern as shown in the following graph.

Some might believe that this all suggests that CO2 appears to be a somewhat weak climate driver that is overwhelmed by natural variability, and that our international institutions appear to have inexplicably forgotten their climate history and not be aware that, far from being «unprecedented,» the apparent cyclical nature of our climate explains the current temperature trends very nicely.

Is it possible that Arctic temperatures are cyclical rather than on a linear upwards trend?

The thing is that as regards the sequence of observed events leading to changes in tropospheric temperature trends and the cyclical poleward and equatorward shifts in the air circulation systems the NCM is pretty robust.

The Second Supplement to Petition states: Adjustments that impart an ever - steeper upward trend in the data by removing the natural cyclical temperature patterns present in the data deprive the GAST products from NOAA, NASA and Hadley CRU of the credibility required for policymaking or climate modeling, particularly when they are relied on to drive trillions of dollars in expenditures.

His unspoken argument is that you have to take a temperature trend over complete cycle (s) in order to remove the cyclical effect: «To remove the warming rate due to the multidecadal oscillation of about 60 years cycle, least squares trend of 60 years period from 1945 to 2004 is calculated ``.