Earth's climate is among the most complex natural phenomena of our planet known to humans!
The warming and cooling climate appears to follow lengthy multi-scale periods of various length from decadal, several centuries, to multiple millennia and so forth. The variability and cyclicity of solar activity is just one part of it. Most likely this cyclicity and variability is still little understood!
Both have a huge impact on climate and temperature. Both are variable and periodic over up to several decades!
Both climate affecting natural phenomena have only been discovered in recent decades and were probably not very well known before about 1990!
Both may still not be very well understood.
Both are most likely not well reflected in current climate computer models!
"The Atlantic Multi-decadal Oscillation (AMO) has been identified as a coherent mode of natural variability occurring in the North Atlantic Ocean with an estimated period of 60-80 years. ..."
"The Pacific Decadal Oscillation (PDO) is often described as a long-lived El Niño-like pattern of Pacific climate variability ... As seen with the better-known El Niño/Southern Oscillation (ENSO), extremes in the PDO pattern are marked by widespread variations in the Pacific Basin and the North American climate. ...."
No comments:
Post a Comment