Sentences with phrase «detect changes in the trend»

Trend line analysis can then be employed to detect changes in the trend of RSI.

If you «use all of the data» you can't detect any change in trend from forcings known to make a difference (e.g. sulfate aerosols, which peaked in the 1940 - 1970 range from US sources and again later from Chinese).

Not exact matches

«We did not detect any clear change in the long - term time trends in the incidence of brain tumors from 1998 to 2003 in any subgroup,» the researchers wrote in the paper, which was published online Thursday in the Journal of the National Cancer Institute (JNCI).

Since trends in convective rainfall are not easily detected in daily rainfall records, or well - simulated by global or regional climate models, the researchers created a new tool to assess the effects of climate change on rainfall patterns and trends in dryland areas.

This magnitude of annual change should be identified by using the methods suggested in this paper and could be used in future to detect population trends.

The new data provide a basis for detecting future change and analyzing trends in surface water chemistry.

Just like us, each animal is slightly different so having these trending values helps the doctor in detecting subtle changes that may indicate a health problem early before it starts to affect your pet.

UHI effects will generally lead to long term trends in an affected station (relative to a rural counterpart), whereas micro-site changes could lead to jumps in the record (of any sign)-- some of which can be very difficult to detect in the data after the fact.

«Thus, if climate change effects are anticipated, or detected in basin - wide storm statistics, sensible policy decisions should depend on the projected overall shift in the probability of damage rather than on a high - threshold criterion for trend emergence.»

«We caution that the question of when a statistically robust trend can be detected in damage time series should not be confused with the question of when climate - induced changes in damage become a significant consideration...

Here is a discussion (with links to an earlier discussion) on seeing... and even «detecting»... step changes in synthetic data sets that we know for a fact have simply an underlying linear trend plus noise: (snip.

Whether Parker's stations are in «cool parks» or if there are other reasons for the lack of trends differences, does not change that he detected no or minimal trend differences.

Similarly, trends in a certain kind of impact of that class of events can also be detected and attributed, although the influence of other drivers of change, such as policy decisions and increasing wealth, can make this challenging.

So far, no residual trend, whether as a result of anthropogenic climate change or otherwise, has been detected in normalized US tropical cyclone damage.

In order to make the predictions that Laxon made, he would have to assume that any variation can only be accounted for by anthropogenic climate change, and that the trend it detected would continue.

This is hardly surprising, since 23 years is not a very long time to detect trends in natural hazard damages, whether such trends are caused by demographics or by climate change.

A trend analysis of normalized insured damage from natural disasters is not only of interest to the insurance industry, but can potentially be useful for attempts at detecting whether there has been an increase in the frequency and / or intensity of natural hazards, whether caused by natural climate variability or anthropogenic climate change.

«Consistent with previous analyses (see e.g. Montanari, 2012; Zanchettini et al., 2008),» they write, «our trend detection analysis, which we carried out on long historical series observed for the Po river, does not detect any evidence of a statistically significant change in the flood hazard along the Po river and supports the stationarity of the hydrological series during the period of interest (i.e., last five decades).»

Applying the strict criteria, but for station exclusion, a host of stations would get knocked out of the reckoning and the confidence in detecting small trend changes would decrease.

* «UK rainfall shows large year to year variability, making trends hard to detect» * «While connections can be made between climate change and dry seasons in some parts of the world, there is currently no clear evidence of such a link to recent dry periods in the UK» * «The attribution of these changes to anthropogenic global warming requires climate models of sufficient resolution to capture storms and their associated rainfall.»

The inability to detect and attribute increasing trends in the incidence of hurricanes, floods, tornadoes and drought does not mean that human - caused climate change is not real or of concern.

Our past work has shown that the lack of good observations in many parts of the world can badly distort the detected trend in model simulations, losing much of the underlying signal of anthropogenic change.