Sentences with phrase «significance of a trend over»

Debate over whether the warming has really «paused» and the statistical significance of a trend over a short interval are basically debating points.

Not exact matches

The report identifies key trends that will influence the packaging industry over the next five years and highlights the significance of e-commerce specific packaging and «smart» packaging features.

If there is a trend that continues with increasingly higher typhoon landfalls over Japan, even if there is a near - constant total number of Typhoons over the Pacific, this would have significance on many levels.

First, Happer mentions statistical significance, but global surface temperature trends are rarely if ever statistically significant (at a 95 % confidence level) over periods as short as a decade, even in the presence of an underlying long - term warming trend, because of the natural variability and noise in the climate system.

I asked for the evidence for this assertion, and I showed with some data sets that there are discernible trends over the last 16 years in most of those sets, which are not statistically significant at a significance level of 95 %, though.

A decrease in statistical significance of a trend from one period to the next period doesn't by itself even allow the conclusion that the trend slope decreased, since the statistical significance depends both on the trend slope and on the properties of the fluctuations overlaying the trend within the time period, the amplitude and how the fluctuations are distributed over the time interval.

Since the U.S. alone accounted for roughly half the insured losses over this period, the significance of the longer U.S. record and lack thereof in the shorter global record suggests that 20 years may be too short to detect significant trends.

Trends are estimated over time periods, and depending on what the chosen length of the time period is, the trend estimates for the surface / troposphere temperature and their statistical significance will vary.

There has not been shown to be a density variation of significance that correlates with average temperature variation (e.g, the recent high average temperature came from a small very hot area over the ocean and a small northern area, and more normal to even colder temperatures everywhere else, not global temperatures being warmer), and Solar activity has been shown to correlate very well with much of the long term (thousands of years time scale) global temperature trend.

Cox also seemed incognisant of the significance of the 2015/16 El Nino, a major natural spike over underlying trends, and that it has fallen away much faster than the previous Super El Nino * of 1997/8.

The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.1 Earth - orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale.