Interested in open data and using open data to make the world a better place? The fifth annual Open Data Day is set to take place Saturday, March 4, 2017. Open Data Day is an annual celebration of open data all over the world where groups from around the world can create local events where they use open data in their communities. It is an opportunity to show the benefits of open data and encourage the adoption of open data policies in government, business and civil society.
It’s that time of year when we’re inundated by campaign ads not only for major offices but also for state propositions and measures. The Sacramento Bee ran a data tracker article showing the top donors for and against these propositions. I really appreciate the research and analysis that went into that piece, but as I was analyzing it myself it occurred to me that this would be another well-suited application of a Sankey diagram.
Since creating and publishing the City of Sacramento Budget Interactive Flow Diagram last year for Code for Sacramento’s Open Budget Sacramento project I’ve heard a lot of positive feedback about it. This flow diagram seems to attract and engage people more than any other style of data visualization I’ve produced. People love it. Commonly referred to as a Sankey diagram, alluvial diagram, or flow diagram, these visual representations of how things flow or are distributed and dispersed seem to naturally draw people in to explore and interact with the data.
Back in October I participated in a two day hackathon, 25K Find a New Way: CA GreenGov Challenge, put on by the California Department of General Services. The project that I created was an interactive dashboard to explore building sustainability metrics to ￼make it easier to visually identify departments, ZIP codes, building types, & individual buildings that need the most attention to lower site energy use, grid-purchased electricity use, & water use.
According to the National Weather Service, 2015 will go down as one of the hottest years on record in Sacramento. How do recent years’ temperatures compare to those of 50 or 100 years ago? The interactive heat maps below represent over 123 years of Sacramento weather data; daily high temperatures, daily lower temperatures, and daily precipitation. These interactive data visualizations allow you to explore the temperatures and precipitation for almost every day over the last 123 years.
The interactive visualization of how the City of Sacramento’s budget flows and its accompanying animated video teaser below are both projects I created for the Code for Sacramento project Open Budget Sacramento. Explore how the City of Sacramento’s money flows from revenue sources to expenses in the interactive visualization below or open it in its own window.
With the ongoing California drought, an impending strong El Nino, and high hopes of a consequently wetter than average winter, I wanted to explore some alternatives to visually representing monthly rainfall totals in Sacramento since 1893.
The number of days in Sacramento with days at or above 90.0° F. has increased over the last 123 years. Explore the chart below to see how many days per month in a given year reported maximum temperatures higher than 90.0° F.