Adding some SMAP Harmony examples

[mikala-nsidc]

Added some SMAP Harmony examples to the notebook and renamed the notebook to be more general.

This won't need to be merged until after October 21, when we publicly release SMAP data sets and Harmony services.

[mikala-nsidc]

@jules32 Would you mind giving this a review?

[ateucher]

This looks really good @mikala-nsidc! I was able to run it all locally except for the s3 direct streaming, which was expected. Your explanations of all of the concepts are just at the right level so that people understand what's going on without getting bogged down in the weeds.

I have one question - I had to restart the notebook partway through, and when I submitted the request the second time I was a bit surprised to see Harmony processing the whole request again. Does it do any caching on s3 so it doesn't have to reprocess identical requests?

I don't think it's necessary for this notebook, but it would be interesting to demonstrate how to submit a request that puts the processed data in a user's own S3 bucket, does that exist anywhere? If so, it might be worth linking to?

[mikala-nsidc]

@ateucher Those are good questions! You can access a previously processed request using the Harmony job id - it's staged in a Harmony S3 bucket for 30 days. But yes, if you run the request again from the notebook, you are making a new request and it will create a new Harmony job.
I will try to find instructions for sending Harmony output to a user defined S3 bucket. I've read that it's an option, but haven't looked for actual instructions yet.
Would it be okay to merge the updates to this notebook as is, for now?

[ateucher]

Thanks Mikala! Yes, I think it's good to merge as-is, I'll do that now, and make an issue based on your comment :)