Publicly available data provided by NOAA on ocean temperatures every day. Each day is a separate image. Although the interface looks very late nineties, there are a ton of options. Visit their site & with a click on a date this data will be neatly called up, parsed for you by their 'THREDDS' program, & quickly visualized by their GODIVA2 browser.
Try as I might, I could not get their 'animate' button to work for me, so of course I did what anyone would do: download all fifteen thousand two hundred ninety images. (See notes, below.)
NOTES:
1. Gold represents no deviation from the mean, with darkening blues for down to 10° C below & brightening reds glowing up to 10° C above it.
2. The video above is the original animation. (The one up at YouTube being a derivative with a smaller footprint, & therefore less information.)
3. Compare to my previous animation, at https://www.youtube.com/watch?v=-NskAtk3tQk:4. I do not see the same creepy 2023 pattern variation that arose when I animated with screenshots from Earth.nullschool.net. Nor did I see any weird 'granularity' beginning around 2020 & going up till then. So the other weirdness might well be a product of faulty or cascading effects in sensing equipment.
5. For example: https://www.ncei.noaa.gov/thredds/godiva2/godiva2.html?server=https://www.ncei.noaa.gov/thredds/wms/OisstBase/NetCDF/V2.1/AVHRR/198109/oisst-avhrr-v02r01.19810901.nc#
6. Images downloaded using cURL via the command line interface, batch resized & converted to jpg & each image given a text overlay of it's date -- with the invaluable ImageMagick -- via grep assisted shell scripting; then the whole lot made sequential via Automator; after which I pointed ffmpeg at it via the command line to get the MP4 to resize & futz with bitrate framerate encoders wrappers & upload limits.
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