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What is the coverage of a digital data set at the scale 1:50,000 and 1:250,000?

April 26, 2017coverage Data digital scale

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What is the coverage of a digital data set at the scale 1:50,000 and 1:250,000?

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A digital data set at the 1:50,000 scale covers about 1,100 km, or approximately 40 km (30 arc-minutes) by 28 km (15 arc-minutes). A digital data set at the 1:250,000 scale covers about 18,000 km, or approximately 160 km (2 degrees of arc) by 110 km (1 degrees of arc). A digital data set at the 1:250,000 scale covers the same area as 16 digital data sets at the 1:50,000 scale.