Write the Book On Weather Metrics

摘要

What country do you think has the wildest weather in the world? Which is the one with the most hurricanes, floods, tornadoes, blizzards, hail storms, droughts, and lightning strikes? It is the USA! Does that surprise you? With two coastlines exposed to storms that form at sea, plus frequent masses of cold, dry air coming down from the north meeting up with moist, warm air from the south, plus several mountain ranges to mix things up, the USA has all the right stuff to whip up plenty of weather excitement. What does all this weather have in common? First of all―air! After all, weather is really all about the thin blanket of air surrounding Earth and what any particular part of it is doing. What is its temperature? How much water does it contain? How fast is it moving and in what direction? How dense is it? What gases are in it? What particles are in it?