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Surface Element Frequencies (GTOPO30 Quadrangle W 140 N 40)

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http://edc.usgs.gov/products/elevation/gtopo30/w140n40.html

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frequencydry %total %all<50m>=50m>=500m

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water24,459,76484.99%

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shore12,1170.04%

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slope1,683,76339.10%5.85%

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ridge641,67214.90%2.23%

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channel657,08615.26%2.28%

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summit195,6444.54%0.68%

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pit164,6143.82%0.57%

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saddle48,1911.12%0.17%

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flat, 1521,23829,42973,983417,826

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flat, 2224,95127,37025,985171,596

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flat, 3101,81113,91910,38977,503

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flat, 467,55313,00110,19444,358

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flat915,55321.26%3.18%

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dry total4,306,523

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total28,778,404

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check28,778,404