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Pebble Count Data for Delineation of Flood-Inundation Areas in Grapevine Canyon Near Scotty's Castle, Death Valley National Park, California

Dates

Publication Date
Time Period
2017-03-02

Citation

Morris, C.M., Welborn, T.L., and Minear, J.T., 2020, Geospatial Data, Tabular Data, and Surface-Water Model Archive for Delineation of Flood-Inundation Areas in Grapevine Canyon Near Scotty's Castle, Death Valley National Park, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9IPKW55.

Summary

This comma-separated values (CSV) file includes the results of five Wohlman-style pebble counts (Wolman, 1954), collected in Grapevine Canyon near Scotty's Castle, Death Valley National Park, on March 2, 2017. Pebble counts were performed to determine the size of channel bed particles and evaluate channel roughness to be input into a one-dimensional hydraulic model.

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Attached Files

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GrapevineCanyon_PebbleCount.csv 543 Bytes text/csv

Purpose

These data were collected as part of a U.S. Geological Survey study, done in cooperation with the National Park Service, to assess the extent of potential flood-inundation areas in Grapevine Canyon near Scotty's Castle, Death Valley National Park, California. Regional flood regression equations were used to estimate the 4, 2, 1, 0.5, and 0.2 percent annual exceedance probability (AEP) flood streamflows. The estimated flood streamflows were used in the one-dimensional hydraulic model to compute water surface elevations mapped using the digital terrain model.

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