The team used these quality, adjusted daily series to calculate other series for annual and
seasonal anomalies over the past century.
Lag correlations between
seasonal anomalies of the two variables are generally stronger with ice lagging the summer temperatures and with ice leading the winter temperatures.
An ex-Director from the Vanguard Group, Burton Malkiel, the author of «A Random Walk Down Wall Street,» has criticized the January effect stating that
seasonal anomalies such as it don't provide investors with any reliable opportunities.
Tropical nudging improves the simple GCM's stationary wave climatology, and transient eddy forcing can produce
substantial seasonal anomalies at high latitudes with better correspondence to some observed cases, especially in the Western Hemisphere, with stronger communication between the Asian monsoon and North America.
These reports can reveal trends and patterns that can help you mitigate costly issues, such as attendance and
seasonal anomalies.
The authors look at
the seasonal anomalies for both June - August (figure 5), the Northern Hemisphere summer, and December - February (figure 6), the Northern Hemisphere winter, for not only 2011, but 2009 and 2010 also.
For summer case studies, time - independent linear solutions show that
some seasonal anomalies can be attributed to linear wave propagation from the tropics, especially for lower extratropical latitudes.
Here are some typical examples of their maps of
seasonal anomalies.