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Data Series 815

Prepared in cooperation with the Association of Washington Cities and the Washington Department of Ecology

Physiographic and Land Cover Attributes of the Puget Lowland and the Active Streamflow Gaging Network, Puget Sound Basin, Washington

By Christopher Konrad and Maria Sevier

Table 5. Quantiles of attribute values for analysis units in the Puget Lowland, Puget Sound Basin, Washington. 


[Abbreviations: AU, analysis unit; km2, square kilometer; km/km2, kilometer per square kilometer; m, meter; m/yr, meter per year]


Quantile
(fraction
of all AUs)
Area
(km2)
Elevation
(m)
Slope
(percent)
Precipitation
(m/yr)
Stream
density
(km/km2)
Alluvium

fraction
Coarse-
grained
fraction
Fine-
grained
fraction
Bedrock
fraction
Forest
fraction
Wetland
fraction
Impervious
fraction
Road
density
(km/km2)
Fraction of
AU gaged
fraction
0.1 1.8 27 0.03 0.67 0.7 0.00 0.00 0.00 0.00 0.12 0.01 0.00 1.1 0.00
0.2 2.4 39 0.05 0.80 1.0 0.00 0.00 0.12 0.00 0.24 0.01 0.01 1.7 0.00
0.3 3.0 49 0.07 0.96 1.2 0.00 0.05 0.27 0.05 0.37 0.02 0.02 2.2 0.00
0.4 3.7 62 0.08 1.04 1.4 0.00 0.10 0.42 0.10 0.50 0.03 0.02 2.7 0.00
0.5 5.1 75 0.10 1.10 1.6 0.01 0.16 0.52 0.16 0.59 0.04 0.04 3.3 0.00
0.6 7.4 90 0.11 1.19 1.9 0.03 0.23 0.63 0.23 0.65 0.05 0.05 3.9 0.00
0.7 9.7 108 0.13 1.28 2.1 0.06 0.30 0.72 0.30 0.71 0.06 0.08 4.7 0.00
0.8 12.4 135 0.17 1.38 2.5 0.13 0.43 0.81 0.43 0.78 0.08 0.15 6.0 0.02
0.9 16.4 219 0.24 1.70 3.1 0.36 0.62 0.90 0.62 0.85 0.12 0.30 8.9 0.16
1.0 46.4 1,549 0.70 4.11 10.6 1.00 1.00 1.00 1.00 0.99 0.92 0.94 25.9 1.00

First posted January 13, 2014

For additional information, contact:
Director, Washington Water Science Center
U.S. Geological Survey
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Tacoma, Washington 98402
http://wa.water.usgs.gov

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