Emptied reservoirs in California

Posted to Statistical Visualization  |  Tags:  |  Nathan Yau

Winter is over and it’s shorts weather these days in California. This is good for relaxing outdoor lunches but not so good for the drought. It’s sad to drive down the state and see a bunch of barren farm land. Victor Powell shows this shift in water supply through reservoir data from the California Department of Water Resources.

Each dot represents a reservoir, and the outer circle around each dot is reservoir’s capacity. A time series chart appears when you select a reservoir so you can see the percentage of fill on a monthly basis. However, instead of showing the full time series with a single line, a line is drawn for each year so that (1) you can see seasonality and (2) overall fill percentage dropping.

Favorites

19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.

Life expectancy changes

The data goes back to 1960 and up to the most current estimates for 2009. Each line represents a country.

Reviving the Statistical Atlas of the United States with New Data

Due to budget cuts, there is no plan for an updated atlas. So I recreated the original 1870 Atlas using today’s publicly available data.

How We Spend Our Money, a Breakdown

We know spending changes when you have more money. Here’s by how much.