Sentences with phrase «correlation with a changing climate»

Not exact matches

Since these set of ocean currents are known to influence global climate, the researchers were interested to see if it correlated with rainfall in the Western Hemisphere, and how such a correlation could change over time.

«Most of these trends show strong correlations with drought - related conditions which, to a large degree, agree with what we expect from climate change projections,» said Moritz.

Large changes in cosmic rays are documented in response to magnetic - field variations (the Laschamp event of about 40,000 years ago is especially prominent) with no corresponding change in climate, so any cosmic - ray influence on the climate must be very small (a weak correlation can be obscured by noise; a strong control is almost always visible «by eye,» and clearly is absent).

Often these correlations mysteriously change phase with time, which is usually described as evidence of the non-linearity of the climate system, but in fact is the expected behaviour when there is no actual coherence.

In reality with climate change there is a change in all weather variables, hence the auto - correlation problem.

His position: • No evidence of increasing lake clarity as a result of secchi measurements since 1946 • The interplay of stratification and plankton productivity are not «straightforward» • Challenges O'Reilly's assumption on the correlation of wind and productivity - the highest production is on the end of the lake with the lowest winds • A strong caution using diatoms as the productivity proxy (it is one of two different lake modes) • No ability to link climate change to productivity changes • More productivity from river than allowed for in Nature Geopscience article • Externally derived nutrients control productivity for a quarter of the year • Strong indications of overfishing • No evidence of a climate and fishery production link • The current productivity of the lake is within the expected range • Doesn't challenge recent temp increase but cites temperature records do not show a temperature rise in the last century • Phytoplankton chlorophylla seems to have not materially changed from the 1970s to 1990s • Disputes O'Reilly's and Verbug's claims of increased warming and decreased productivity • Rejects Verburgs contention that changes in phytoplankton biomass (biovolume), in dissolved silica and in transparency support the idea of declining productivity.

I have heard that global climate models have very rudimentary cloud models and do not include such effects of solar / cosmic rays nor of the correlation with earth's Length of Day (as impacted by temperature and wind changes).

If I can prove that solar activity is modulated by the motion of the solar system masses and their associated fields, we will be able to accurately hindcast solar activity and get a better idea of its correlation with climate changes.

Other scientists suspected Pounds» correlations with climate change were simply due to a lack of statistical rigor.

These proxy measurements are independently verified and statistically validated by robust methods of comparison with instrumental data and should have a sound physical reason as to why they change with aforementioned climate parameter (correlation does not imply causation); only then are proxy reconstructions and their inherent quantitative and qualitative implications accepted by the community.

For example Gerald Bond's Persistent Solar Influence on North Atlantic Climate during the Holocene which is one of a series of papers written by Bond that tracked the correlation of levels of the cosmogenic isotopes C14 and Be10 with centennial to millennial climate Climate during the Holocene which is one of a series of papers written by Bond that tracked the correlation of levels of the cosmogenic isotopes C14 and Be10 with centennial to millennial climate climate change.

The overall correlation is a result of the fact that climate policy induces systemic changes in the energy system, away from technologies with high greenhouse gas emission levels, which also have high emissions of air pollutants (e.g. coal use without CCS has high emission levels of CO2, but also of SO2).

Their argument is updated models of the history of the milky way dramatically change the picture of when spiral arms existed and that the correlation with climate data disappears.

Reveals a correlation of climate changes with the emergence and collapse of civilizations in the Middle East.

The correlation with temperature through the LIA and other periods is pretty good and offers a much better explanation of our continually changing climate than does co2.

Your correlation between temp change and the natural climate forces is also in very good correlation with Hans Roslins.If you add the number of individuals prospering from UHI effects it correlates perfectly with your graph and also not surprisingly with CO2 emissions.

For tree growth and recruitment, all nine tree species showed significant correlations with stand - level competition, whereas the effects of climate change on tree growth were weak for most tree species (SI Appendix, Fig.

Recent global climate change is well documented [44] and is confounded in time with the recent declines of amphibians [2], which requires careful analyses to distinguish correlation from causation.

Climate «control» agreements — or the lack of them --- have acquired an intriguing counter-intuitive correlation with the surge of nasty prognostications about «high - end» climate Climate «control» agreements — or the lack of them --- have acquired an intriguing counter-intuitive correlation with the surge of nasty prognostications about «high - end» climate climate change.

All of these global climate changes show exceptionally good correlation with solar variation since the Little Ice Age 400 years ago.