Thursday, July 15, 2010

Revisiting Bolivia


  1. Noise, meet noise that's correlated to you.

    There have been some CLIMAT reports for Bolivian stations in the last couple years, so these will probably get picked up by the GHCN sooner or later.

    One interesting and more focused thing to do would be to see how stations that are near each other, but are in very different physical environments (mountain vs valley vs coastal) correlate with each other. I think this is the basis of some of the complaints. Of course, we didn't need GSOD or Bolivia to do this; probably the US has plenty of examples.

  2. Also, I think some of these comparisons would be better presented on a single plot, instead of side by side. Maybe that's more work for you, but it's less work for us. As you wish.

  3. CE, I have to admit that ease of production is a factor in this choice. But I think also that the predictability of the graph format is a plus for readers - maybe I'm rationalising. More strain on the eyes but less on the brain?

    Not much I can do about the moise. It's true that you'd expect the larger station numbers with GSOD should give less noisy signal, but it doesn't seem to. Maybe that reflects data quality.

  4. T'isnt actually noise, Nick. If add more and more stations in the region, and you still get the same fluctuations when you average them together, that's the actual variability at that place. Real weather is climate noise, but it's still physically real.

    That may go without saying, but just to be clear. But that's why I wanted an overlay, to see how well the 'noise' matches up.