I made a movie you might enjoy. There may be something else out there like this, probably better than this one, but it is still cool. I downloaded all the PDF files from the US Drought Monitor archives, using the version of the connected US that has only the year, month, and day on the graphic. Then I slapped them in iMovie and sped the animation up by 800% over the default 1 sec. per pic. I do not have today's rather horrifying image on it, which I've placed above.
Here's the movie:
A bit too quick I think Greg - hard to pay attention to season and extent .
The speed at which it is happening is frightening. there is a roughly thirty year delay between the CO2 level and the temperature associated with that level. We are having the temperatures of the 1970's so we have a long way to go yet. http://www.climateoutcome.kiwi.nz/climate-threats.html
read the blog page as well, there is some good stuff there .
I intend to only use batch processing to do this, but it wonder if ir would look better with just the years and not the dates. The seasons would be apparent, maybe.
Very nice, Greg. Much smoother and more "professional" than the little GIF I made of 2 1/2 years of North Amer drought: