Six 4K images a day at 24 frames per second (so each second is four days) from April 18, 2019 to April 17, 2020:

I made a version of this video a couple of years ago using xplanet clouds. That was lower resolution and only had one frame per day so it's pretty quick. This version uses the new 4K cloud image I developed for Catfood Earth just over a year ago. I've been patiently saving the image six times a day (well, patiently waiting as a script does this for me). It's pretty amazing to see storms developing and careening around the planet. The still frame at the top of the post shows Dorian hitting Florida back in September.

(Related: Animation of a year of Global Cloud Cover; Time Zone Time Lapse; Crystal World)

(You might also like: Open Immigration; Visualizing Coronavirus Cases and Deaths by Country and US County; Hoylake Beach)

(All Code Posts)

Conway's Game of Life, for 1,830 generations, starting from a random pattern. Instead of showing the live cells this animation focuses on death - each dead cell gets a little bit greener with each generation. You can just about make out a few static patterns in the darkness and the lines cruising through are left behind by gliders. Mostly though you're watching the horrible loss of life caused by cellular social isolation.

(Related: The Secret Diary of a Xamarin Android Developer, Aged 48 1/3; Life, Non-locality and the Simulation Hypothesis; Time Zone Time Lapse)

(You might also like: High Roller Timelapse; McCloud River Trail (Three Waterfalls); StackOverflow DevDays)

(More Timelapses)

I made this animation to visualize climate change based on the HadCRUT 4 data (specifically the ensemble median gridded data) from the Met Office Hadley Centre.

HadCRUT 4 provides temperature anomalies in a five degree grid by month and year from January 1850 to November 2018 (as of this post). Anomaly here means deviation from the 1961-1990 average.

In the animation I wanted to capture the full timespan of the data but also show long term trends. Each frame is a month of data and each five degree grid of longitude and latitude is colored based on the maximum cumulative anomaly (positive or negative) for each decade. The range for color is 0 to +/- 20.85 degrees, red for warmer and blue for cooler. This means there is a reset at the start of each decade, the first few years are mostly random noise but by the end of each decade you're seeing the range of extremes.

Spoiler alert - you can spot something happening in the last three decades.

As well as the change in temperature it's interesting to watch the increase in global coverage over time. It's surprising that even the most recent years have no readings for Antarctica. Here's a paper (PDF) discussing the impact of the missing data. The HadCRUT 4 FAQ has more detail on how the temperature anomalies were assembled.

(Previously)

(Related: Animation of a year of Global Cloud Cover; Coronavirus Visualization Update; Improving the accuracy of the new Catfood Earth clouds layer)

(You might also like: Open letter to Nancy Pelosi; Moorhen and Chick; Clouds Over The Farallones)

(More Timelapses)

Update April 19, 2020: I made a longer, higher resolution version which you can find here.

Here's an animation showing a year of global cloud cover (from July 2017 to July 2018) :

The clouds are sourced from the free daily download at xplanet. I run a Google apps script that saves a copy of the image to Google Drive every day (basically the same as this script to save Nest cam images). The hard part was waiting a year to get enough frames. Xplanet combines GEOS, METEOSAT and GMS satellite imagery with some reflection near the poles. Although I didn't need to for this project note that you can subscribe to higher quality / more frequent downloads.

As well as the clouds you can also see the terminator between day and night change shape over the course of the year. This video starts and ends with the Summer equinox when days are longest in the Northern hemisphere.

Where it's nighttime the image is based on NASA's Black Marble. The daytime is based on Blue Marble, but blended with a different older image which has better ocean colors and interpolated daily between twelve monthly Blue Marble satellite images. The result of this is that you can see snow and ice coverage changing over the course of the year. If you look closely you'll also notice vegetation growing and dying back with the seasons.

Rendered in a slightly modified build of Catfood Earth (the main release doesn't know how to access my private cache of xplanet cloud images). As well as combining day, night and cloud images Catfood Earth can also show you earthquakes, volcanoes, US weather radar, political borders, places and time zones. It has been enlivening Windows desktop wallpaper for fifteen years now (as shareware back when that was a thing, these days it's a free download for Windows and Android).

More Google Apps Script Projects

• Get an email when your security camera sees something new (Apps Script + Cloud Vision)
• Get an email if your site stops being mobile friendly
• Export Google Fit Daily Steps, Weight and Distance to a Google Sheet
• Email Alerts for new Referers in Google Analytics using Apps Script
• How to backup Google Photos to Google Drive automatically after July 2019 with Apps Script
• Using the Todoist API to set a due date on the Alexa integration to-do list (with Apps Script)
• Automate Google PageSpeed Insights and Core Web Vitals Logging with Apps Script
• Using the Azure Monitor REST API from Google Apps Script
• Monitor page index status with Google Sheets, Apps Script and the Google Search Console API

(All Code Posts)