Kriging. The original idea was about taking samples every couple of kilometers, assessing the amount of ore in each location and then creating a distribution map. Seems like a perfectly reasonable idea to apply ores in the ground. The ores in the ground are sort of stable in their place. Doing the same thing with temperatures? Instead of being kilometers or less between sample locations, the distance is orders of magnitude greater. The metric being distributed is changing on you by the minute. The resolution of the data you have is at best daily. You can have step changes in daily temperatures due to the magical properties of water. We don't actually have the metric the tells us about those magical properties in the data set (T wet). Yet the mathematical magicians manage to Krig the temps across the world.
What happened to all the gray haired men? (apologies to women, gray haired women are allowed to slap down young punks with their wild "new" ideas also). [Now my PC mania is in gear.... gray means experienced. Gray means "That's a great idea son. Take a week and write it up. We will put it in the file and revisit it in 5 years!"
The gray hairs aren't trying to shut down the young punks. They are just trying to say. "Yes, ideas are wonderful and can be applied in many glorious ways. I was there once. I wanted to change the world. Then I learned that you can't chase a delayed signal and control it. Make a tiny adjustment and wait for the perturbations to wither away."