Sentences with phrase «natural sea surface temperature variations»

This does not appear to be indicative of anthropogenic influences, but rather natural Sea Surface Temperature variations.

Not exact matches

While natural climate variations like El Niño do affect the frequency and severity of heat waves from one year to the next, the study suggests the increases are mainly linked to long - term changes in sea surface temperatures.

Of course, while short - term changes in sea level can be predicted fairly accurately based on the motions of the moon and sun, it is a lot harder predicting the ups and downs of the average global surface temperature — there is a lot of noise, or natural variation, in the system.

The extreme cold weather observed across Europe and the east coast of the US in recent winters could be partly down to natural, long - term variations in sea surface temperatures, according to a new study published today.

Researchers from the University of California Irvine have shown that a phenomenon known as the Atlantic Multidecadal Oscillation (AMO)-- a natural pattern of variation in North Atlantic sea surface temperatures that switches between a positive and negative phase every 60 - 70 years — can affect an atmospheric circulation pattern, known as the North Atlantic Oscillation (NAO), that influences the temperature and precipitation over the Northern Hemisphere in winter.

As discussed in the Climate chapter, large - scale atmospheric circulation patterns connected to changes in sea - surface temperatures strongly influence natural variations in precipitation and temperature (e.g., Cayan et al. 1999; Mantua and Hare 2002).

But it does say; «Natural climate variations, which tend to involve localized changes in sea surface temperature, may have a larger effect on hurricane activity than the more uniform patterns of global warming...»

That suggests that the 1940s tropical warming could have started the changes in the Amundsen Sea ice shelves that are being observed now... He emphasized that natural variations in tropical sea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.&raqSea ice shelves that are being observed now... He emphasized that natural variations in tropical sea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.&raqsea - surface temperatures associated with the El Niño Southern Oscillation play a significant role.»

I hypothesise that natural variations can account for the vast majority of the warming seen within the bounds of certainty in the surface and sea temperature records in the industrial era.

It's a mode of natural variation in the tropical eastern Pacific ocean which is indicated by sea surface temperature in that region, as well as patterns of atmospheric pressure, surface winds over the ocean, even precipitation over a much larger region.

The new atlas could also improve understanding of climate phenomena like the Atlantic Multi-decadal Oscillation, a variation in North Atlantic sea - surface temperatures that hasn't been tracked long enough to tell if it is a transitory event, forced by human intervention in the climate system, or a natural long - term oscillation.

Regional circulation patterns have significantly changed in recent years.2 For example, changes in the Arctic Oscillation can not be explained by natural variation and it has been suggested that they are broadly consistent with the expected influence of human - induced climate change.3 The signature of global warming has also been identified in recent changes in the Pacific Decadal Oscillation, a pattern of variability in sea surface temperatures in the northern Pacific Ocean.4

Backing that up, NASA says that 1) sea surface temperature fluctuations (El Niño - La Niña) can cause global temperature deviation of about 0.2 °C; 2) solar maximums and minimums produce variations of only 0.1 °C, warmer or cooler; 3) aerosols from natural sources such as volcanic eruptions (Mount Pinatubo for example) have caused average cooling of 0.3 °C, but recent eruptions have had not had significant effect.