One of the first challenges we need to address in this course is this: what do we mean when we use the phrases 'decadal variability' or 'the decadal timescale'?
As you'll see, there is not a strong consensus about the meaning of these terms. Often, scientists adopt their own definitions as it suits their particular research question. For our first exercise, I'd like you to present a brief (one or two-sentence) description of 'decadal variability' as defined by a particular source.
I'd like you to include your response as a comment to this blog entry. Please choose your own unique source that has not been cited by another student (so the earlier you complete this assignment, the more freedom you'll have to choose).
Please add your contribution prior to our second class meeting (9:30 AM on September 13). I'll get you started with the first entry!