How might scientists monitor snow coverage?

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How can you measure sea level change? Imagine you are standing at the beach with a ruler. The waves come in and out changing the sea level there over seconds. Each day the tidal cycle changes the sea level and that changes during the lunar cycle. Even If you can prove that the sea level has changed - is it really the sea level changing, or is the land rising or falling? New technologies, including satellites, are allowing scientists to measure the small changes that show that the world's climate is altering faster than ever before. The main areas of evidence that you need to be aware of... Show more

How might scientists monitor snow coverage?