Digital database of channel cross-section surveys, Mount St. Helens, Washington

Data Series 951
By: , and 

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Abstract

Stream-channel cross-section survey data are a fundamental component to studies of fluvial geomorphology. Such data provide important parameters required by many open-channel flow models, sediment-transport equations, sediment-budget computations, and flood-hazard assessments. At Mount St. Helens, Washington, the long-term response of channels to the May 18, 1980, eruption, which dramatically altered the hydrogeomorphic regime of several drainages, is documented by an exceptional time series of repeat stream-channel cross-section surveys. More than 300 cross sections, most established shortly following the eruption, represent more than 100 kilometers of surveyed topography. Although selected cross sections have been published previously in print form, we present a comprehensive digital database that includes geospatial and tabular data. Furthermore, survey data are referenced to a common geographic projection and to common datums. Database design, maintenance, and data dissemination are accomplished through a geographic information system (GIS) platform, which integrates survey data acquired with theodolite, total station, and global navigation satellite system (GNSS) instrumentation. Users can interactively perform advanced queries and geospatial time-series analysis. An accuracy assessment provides users the ability to quantify uncertainty within these data. At the time of publication, this project is ongoing. Regular database updates are expected; users are advised to confirm they are using the latest version.

Suggested Citation

Mosbrucker, A.R., Spicer, K.R., Major, J.J., Saunders, D.R., Christianson, T.S., and Kingsbury, C.G., 2015, Digital database of channel cross-section surveys, Mount St. Helens, Washington (ver. 1.1, April 2018): U.S. Geological Survey Data Series 951, 9 p. and supplemental data, https://doi.org/10.3133/ds951.

ISSN: 2327-638X (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Data Collection and Processing Methods
  • Data Compilation Methods
  • Accuracy Assessment
  • Summary
  • Acknowledgments
  • References

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Digital database of channel cross-section surveys, Mount St. Helens, Washington
Series title Data Series
Series number 951
DOI 10.3133/ds951
Edition Version 1.0: Originally released August 6, 2015; Version 1.1: April 18, 2018
Year Published 2015
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Volcano Science Center
Description Report: v, 9 p.; Metadata; ReadMe; Spatial Data; Version History
Country United States
State Washington
Other Geospatial Mount St. Helens
Online Only (Y/N) Y
Additional Online Files (Y/N) Y