Chalk Cliffs, located 8 miles southwest of Buena Vista, Colorado, is one of the most active debris-flow areas in the state (U.S. Geological Survey). This "Child item" page includes videos of debris flows captured by one of the high-definition cameras at the monitoring site in Chalk Cliffs, CO. This camera (Wide-angle Camera) is located near Station 1 on the opposite side of the basin with a broad view of the channel. The attached figure "station_and_camera_locations.png" provides an overview figure with the location of the two cameras and three stations along the channel. Video recording for all cameras is triggered using a rainfall threshold, derived from rainfall measurements from rain gauges (Michel et al., 2019). The complete videos for all the cameras are downloaded manually during site visits. More detailed information about the cameras and settings used can be found in the metadata file under “Process steps” in “Data quality information.”
During 2015, several debris flows were captured by the 'Wide-angle Camera'. The videos for all debris flows captured by this camera along with the dates they were captured can be found in the attached zip files. The file names indicate "date_camera_debrisflow." The following citations relate to reports that provide background information for this data release:
Michel, A., Kean, J.W., Smith, J.B., Allstadt, K.E., Coe, J.A. (2019). Taking the pulse of debris flows: Extracting debris-flow dynamics from good vibrations in southern California and central Colorado. Debris-flow hazards mitigation: Mechanics, Monitoring, Modeling, and Assessment. http://dx.doi.org/10.25676/11124/173224
U.S. Geological Survey Landslide Hazards Program. (2020). Chalk Cliffs, Colorado. U.S Geological Survey, https://www.usgs.gov/natural-hazards/landslide-hazards/science/chalk-cliffs-colorado?qt-science_center_objects=0#qt-science_center_objects Kean, J.W., Smith, J.B., and Coe, J.A., 2020, Debris-flow monitoring data, Chalk Cliffs, Colorado, USA, 2014: U.S. Geological Survey data release, https://doi.org/10.5066/P9MUWDFN.