Sentences with phrase «observed over short time»

In other words, climate describes phenomena observed over long time periods, such as decades and centuries, while weather is observed over short time periods, such as days and weeks.

The changes are extremely gradual, they can not be observed over the short time span of human civilization so far, and the term «species» is a man - made concept to make categorization of life forms convenient... it is not an immutable feature of the natural world as you seem to think it is.

Not exact matches

We observe that at the lowest level of the evolutionary process, time is contingent in the sense that electronic and atomic radiations are short - lived, measured in millionths of a second; the movement is chaotic, diffused, haphazard, indeterminate as shown in the cloud chamber or the Brownian movement of molecules; the time is transient because entropy takes over; the movements are lost instead of being collected in the thing and perfective of the thing.

While the study does not prove that hydraulic fracturing actually causes these health problems, the authors say, the hospitalization increases observed over the relatively short time span of observation suggests that healthcare costs of hydraulic fracturing must be factored into the economic benefits of unconventional gas and oil drilling.

The lesson here is that changes observed over very short time intervals do not provide a reliable picture of how the climate is changing.

L.A. School Report observes, «The quality of those courses, in which most of the work is done online and over a shorter period of time, has been questioned by LA Unified watchers as well as those within the district, including the school board president.»

It was exciting to observe this transformation over a short period of time.»

I can't deal with all the pithy catchphrases and «Be Gretchen» slogans, but I would probably benefit from a simplified version of her approach: just observing what things make me feel happy, not in the short term, but in my life over time.

Mild movements in interest rates will often have a minimal effect on the price of bonds whereas abrupt swings in interest rates, market sentiment or investor fears, as we've observed in markets recently, can change the valuations of bonds dramatically over a short period of time.

These analyses indicate that it is likely that greenhouse gases alone would have caused more than the observed warming over the last 50 years of the 20th century, with some warming offset by cooling from natural and other anthropogenic factors, notably aerosols, which have a very short residence time in the atmosphere relative to that of well - mixed greenhouse gases (Schwartz, 1993).

Observed changes in short term precipitation intensity from previous research and the anticipated changes in flood frequency and magnitude expected due to enhanced greenhouse forcing are not generally evident at this time over large portions of the United States for several different measures of flood flows.

As far as observed «negative net overall cloud feedback with warming» (on relatively short time scales over the tropics) see Spencer & Braswell.

Then we are told that natural factors have masked AGW over a recent short time period during which there was no observed warming yet close to one - third of all human CO2 emissions since industrialization have occurred.

In this chapter, the authors used existing or new models that describe observed relationships between climate variations, either over short time periods or between locations, and a series of health outcomes.

Judith writes: «Comparing the model temperature anomalies with observed temperature anomalies, particularly over relatively short periods, is complicated by the acknowledgement that climate models do not simulate the timing of ENSO and other modes of natural internal variability...»

Comparing the model temperature anomalies with observed temperature anomalies, particularly over relatively short periods, is complicated by the acknowledgement that climate models do not simulate the timing of ENSO and other modes of natural internal variability; further the underlying trends might be different.