Results of hydrologic monitoring of a landslide-prone hillslope in Portland’s West Hills, Oregon, 2006–2017
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- Document: Report (1.33 MB pdf)
- Data Release: USGS Data Release - Results of Hydrologic Monitoring of a Landslide-Prone Hillslope in Portland’s West Hills, Oregon, 2006–2017
- Download citation as: RIS | Dublin Core
Abstract
The West Hills of Portland, in the southern Tualatin Mountains, trend northwest along the west side of Portland, Oregon. These silt-mantled mountains receive significant wet-season precipitation and are prone to sliding during wet conditions, occasionally resulting in property damage or casualties. In an effort to develop a baseline for interpretive analysis of the groundwater response to rainfall, an automated monitoring system was installed in 2006 to measure rainfall, pore-water pressure, soil suction, soil-water potential, and volumetric water content at 15-minute intervals. The data show a cyclical pattern of groundwater and moisture content levels—wet from October to May and dry between June and September. Saturated soil conditions tend to last throughout the wet season. These data show the hydrologic response of the monitored area to rainfall and provide insight into the dynamics of rainfall-initiated landsliding. This report details the monitoring methods and presents data collected from January 10, 2006, through January 23, 2017.
Suggested Citation
Smith, J.B., Godt, J.W., Baum, R.L., Coe, J.A., Ellis, W.L., Jones, E.S., and Burns, S.F., 2017, Results of hydrologic monitoring of a landslide-prone hillslope in Portland’s West Hills, Oregon, 2006–2017: U.S. Geological Survey Data Series 1050, 10 p., https://doi.org/10.3133/ds1050.
ISSN: 2327-638X (online)
Study Area
Table of Contents
- Abstract
- Introduction
- Physiographic Setting
- Methods
- Summary
- Acknowledgments
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Results of hydrologic monitoring of a landslide-prone hillslope in Portland’s West Hills, Oregon, 2006–2017 |
Series title | Data Series |
Series number | 1050 |
DOI | 10.3133/ds1050 |
Year Published | 2017 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | Geologic Hazards Science Center |
Description | Report: iv, 10 p.; Data Release |
Country | United States |
State | Oregon |
City | Portland |
Other Geospatial | Tualatin Mountains, West Hills of Portland |
Online Only (Y/N) | Y |
Google Analytic Metrics | Metrics page |