“NASA Data Shows July 22 Was Earth’s Hottest Day on Record”
NASA Data Shows July 22 Was Earth’s Hottest Day on Record – NASA
In the US, July 22 was 110th warmest since 1895, about ten degrees cooler than 1901.
Almost all of the world’s long-term daily temperature data is from the US, so how did NASA determine that July 22 was the hottest ever?
‘NASA Decrees July 22 Was Earth’s Hottest Day on Record’
There. Fixed it.
NASA datasets are like play money; they even come close to looking like real thing. By design.
they *don’t
The dataset NASA used is MERRA-2, from 1980 – a year after the last cooling cycle ended, to present. https://climatedataguide.ucar.edu/climate-data/nasas-merra2-reanalysis.
If I were still eating sweets, I would ask for some whipped cream on top of those freshly – picked cherries.
It’s been absolutely freezing across Australia in the last month and all through July. NASA operatives need to stick their collective heads out the window once and a while rather than tap on their computer models in a basement.
Nextdoor, across the Tasman, it’s a ‘game of two halves’ – frigid whiteout snow blizzards for the South Island, mild semi-tropical drizzle for us in the North: round and around it goes, ie. average.
I’m beginning to wonder if experts realise weather goes round and around… they all appear to be signed-up members of the Flat Earth In A Straight Line Cult: a few little speed wobbles and they begin to squeal in panic.
I was curious to see how they arrived at the answer. It is a model reference approach akin to the Lueberger observer or Kalman filter, which only works correctly if the model is correct. Essentially we try to estimate the error in the model (a complete unknown) and trade it off in the errors in the measurements to get a ‘best’ estimate. Since the model is based on junk sciernce, the output is junk.
The approach works well when the plant equations are known precisely, and model errors are due to random disturbances, such as in inertial navigation, but is completely wrecked by missing or imprecisely characterized dynamics. The limitations of the model referenced approaches are well documented in the control engineering literature, and was the reason they were largely abandoned by the 1980s. and provided the motivation for modern robust control methods.
I get the impression of fools rushing in where angels fear to tread.
This is the same NASA that couldn’t figure out how to make a $20 O-ring seal for the $1.4 billion Challenger shuttle lauch.