Winter Solstice 2023

Winter Solstice 2023 in Catfood Earth

Winter starts right now for those of us at the top of the planet. It's summer time down under. Winter Solstice 2023 rendered in Catfood Earth (03:28 on December 22, 2023 UTC).

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(Published to the Fediverse as: Winter Solstice 2023 #code #winter #solstice #catfood #earth The exact moment of Winter Solstice 2023 (03:28 UTC on December 22) rendered in Catfood Earth. )

Catfood Earth 4.40

Updated on Saturday, January 20, 2024

Most of the layers enabled in Catfood Earth 4.40.

Catfood Earth 4.40 is now available to download.

With this release Catfood Earth is 20 years old! This update includes version 2023c of the Time Zone Database and the following bug fixes.

The National Weather Service changed one letter in the URL of their one hour precipitation weather radar product. It needs to be BOHA instead of BOHP. Presumably just checking that data consumers are paying attention? Weather radar is working again.

Not to be left out the Smithsonian Institution Global Vulcanism Program has decided to drop the www from their web site. The convention here is to redirect but they're content with just being unavailable at the former address. Recent volcanoes are working again as well.

The final fix is to the locations layer. Editing a location was crashing. This was due to a new format in the zoneinfo database that was not contemplated by the library that I use. As far as I can tell this isn't maintained any more since the death of CodePlex. While working on this update I started using GitHub Copilot, their AI assistant based on GPT 3.5. I was amazed at how helpful it was figuring out and then fixing this rather fiddly bug. The locations layer is back to normal, and I have regenerated all the time zone mapping as well.

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Autumnal Equinox 2023

Autumnal Equinox 2023

Fall starts at 06:60 on September 23 UTC. Autumn if you're British. Spring if you're Australian. Rendered in Catfood Earth.

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(Published to the Fediverse as: Autumnal Equinox 2023 #code #catfood #earth #equinox #autumnal Render of Autumnal Equinox 2023 at 06:60 on September 2023 UTC in Catfood Earth. )

Global Cloud Cover 48 Hour Video Updated Hourly

Updated on Saturday, September 23, 2023

Global IR Cloud Cover

The video below shows the past 48 hours of global cloud cover, 6 frames per second. It's HD so view full screen to get the most detail. The video is updated hourly.

 

The source is the Global IR product from the University of Wisconsin-Madison Space Science and Engineering Center. I process their image to be equirectangular instead of spherical mercator (full details here) and then generate a video.

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(Published to the Fediverse as: Global Cloud Cover 48 Hour Video Updated Hourly #etc #clouds #satellite #earth #h5v Video showing 48 hours of global infrared cloud cover in HD, updated hourly. )

Blue Marble 2 Animation

One frame showing the Amazon from a Blue Marble 2 Animation

This animation shows twelve sections from the highest resolution version of NASA's Blue Marble Next Generation image for December 2004.

Can you guess all twelve locations? Answers below.

I use a lower resolution version of this image in Catfood Earth. The full version is 86,400 by 43,200, or 3.7 gigapixels. I've always wanted to do something with all this data, and decided to just follow some random paths and animate out the results. It's a little like watching the view from the ISS, if the ISS could randomly change location and direction.

The sequences in order are:

  1. Passing over Madagascar and then across central Africa. 
  2. Along the Aleutian Islands and into Alaska. 
  3. Across South America and the Amazon. 
  4. Up the Eastern seaboard of the US into Canada. 
  5. Following the Nile through North Africa. 
  6. From Siberia to Denmark. 
  7. Up Baja California and then California USA. 
  8. Philippines, Taiwan, China, Mongolia. 
  9. Following the Caribbean to Florida. 
  10. Across Australia. 
  11. South South America, focused on Chile. 
  12. Koreas, Japan.

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(Published to the Fediverse as: Blue Marble 2 Animation #etc #video #nasa #bluemarble #earth #satellite 4k 60fps video from high resolution satellite imagery, can you guess all twelve locations? )

Catfood Earth for Android 4.30

Updated on Saturday, September 23, 2023

Catfood Earth for Android 4.30

Catfood Earth for Android now supports random locations. The slice of Earth displayed will change periodically throughout the day. You can still set a manual location or have Catfood Earth use your current location. Install from Google Play, existing users will get this update over the next few days.

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Summer Solstice 2023

Summer Solstice 2023

Summer Solstice 2023 is at 14:58 UTC on June 21. The image above shows the exact moment of the Solstice as rendered in Catfood Earth. It's the official if not sartorial start of Summer in the Northern Hemisphere and Winter if you find yourself on the other side of the Equator.

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(Published to the Fediverse as: Summer Solstice 2023 #code #solstice #summer #winter #earth #northern #estival Image of the exact moment of Summer Solstice 2023 at 14:58 UTC rendered in Catfood Earth. )

Vernal (Spring) Equinox 2023

Vernal (Spring) Equinox 2023

Spring for the Northern Hemisphere, and Autumn south of the Equator, starts right now - 21:25 UTC on March 20, 2023. The image above shows the exact moment of the equinox in Catfood Earth.

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(Published to the Fediverse as: Vernal (Spring) Equinox 2023 #code #earth #equinox #spring #autumn #vernal Catfood Earth render of the exact moment of the Spring Equinox for 2023 (21:25 UTC on March 20, 2023). )

Winter Solstice 2022

Winter Solstice 2022

Winter Solstice 2022 (December 21, 2022 at 21:48 UTC) as rendered in Catfood Earth. Winter starts right now in the Northern Hemisphere, Summer if you happen to be south of the Equator.

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(Published to the Fediverse as: Winter Solstice 2022 #code #winter #solstice #catfood #earth The exact moment (2022-12-21 21:48 UTC) of Winter Solstice 2022 rendered in Catfood Earth. )

Catfood Earth 4.30

Updated on Sunday, October 23, 2022

Catfood Earth Satellite Composite Image of Earth including Volcanoes and Earthquakes

Catfood Earth 4.30 is available to download.

This update fixes a couple of problems with the screensaver. It now has improved support for multiple monitors (the image will repeat rather than stretch). There was a problem with the screensaver not starting in some cases. This should now be fixed. After upgrading to 4.30 please find and run the 'Catfood Earth Screensaver Settings' shortcut to configure the screensaver.

4.30 also includes version 2022d of the time zone database.

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