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This data release consist of the annual sediment depositional volume at five floodplain and five point bar sites on Powder River in southeastern Montana from 1979 through 2017. These 10 sites are a subgroup of a larger group of cross-sections established in 1975 and 1977 to monitor the channel changes along a 90-kilometer reach of Powder River. In addition to the sediment deposition data, characteristic of the annual peak flood are listed. The data are in 1 Excel files containing worksheets (10) corresponding to each channel cross-section .
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This is a multi-disciplinary community of scientists who study the effects of wildfire disturbance on the built and natural environment. The mission is to understand natural processes such as infiltration, rainfall-runoff, erosion, sediment and chemical transport, and water quality effects. The focus is on obtaining field-based measurements that can be used to improve or develop models for use by emergency, land and water supply managers as tools for decision making.
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The consequence of the 1996 Buffalo Creek wildfire disturbance and a subsequent high-intensity summer convective rain storm (~100 mm h-1) was the deposition of a sediment superslug in the Spring Creek basin (26.8 km2) of the Front Range Mountains in Colorado. Changes in the superslug near the confluence of Spring Creek with the South Platte River were monitored by cross-section surveys at 18 nearly equally-spaced cross sections along a 1500 m study reach for 18 years (1996-2014) to understand the evolution and internal stratigraphy of this type of disturbance in response to different geomorphic processes. These data consist of 18 Excel files (one for each cross section) containing worksheets corresponding to each...
This data release consists of tables with the thickness and particle-size characteristics of overbank sediment deposited in May 1978 along the valley of Powder River in southeastern Montana. About 900 sediment samples were collected at regularly-spaced distances from 20 valley transects along a 90-kilometer reach of Powder River between Moorhead and Broadus, Montana. The decrease in sediment thickness and particle size with distance from the main channel showed weak trends, which were caused by the variability introduced by vegetation sediment traps and subsidiary channels.
This data release will consist of 40 Excel files (one file for each cross section) containing worksheets corresponding to each channel cross-section survey (from 2 to about 40). Worksheets contain the basic survey data (dates, equipment, reference elevations, foresights, distances from reference pins, and elevations). First release: August 21, 2017 (available from author) Revised: November 2, 2018 (ver. 2.0 - available from author) Revised: August 28, 2020 (ver 3.0)
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This data release consists of four Excel files (one for each cross section) containing worksheets corresponding to each channel cross-section survey (~25-31) between 1996 and 2014. These worksheets contain the basic survey data (dates, instruments, reference elevations, foresights, distances from reference pins, and elevations). An additional worksheet contains the measured unit-volume (m^3/m) of chronostratigraphic units deposited during the time interval between two sequential surveys and the unit-volumes of each chronostratigraphic unit eroded during the same time interval. A final worksheet contains the age and transit-time distributions for selected surveys.
    map background search result map search result map Eighteen years (1996-2014) of channel cross-sectional measurements made in Spring Creek after the 1996 Buffalo Creek wildfire and subsequent flood Residence Times and Alluvial Architecture of a Sediment Superslug in Response to Different Flow Regimes in Spring Creek (1996-2016) Channel Cross-section Data for Powder River between Moorhead and Broadus, Montana from 1975 to 2019 (ver. 3.0, August 2020) Sediment Deposition on Floodplains and Point Bars of Powder River in Southeastern Montana from 1979 through 2017 Thickness and characteristics of overbank sediment deposited during an extreme flood in May 1978 along Powder River, Montana, USA Eighteen years (1996-2014) of channel cross-sectional measurements made in Spring Creek after the 1996 Buffalo Creek wildfire and subsequent flood Residence Times and Alluvial Architecture of a Sediment Superslug in Response to Different Flow Regimes in Spring Creek (1996-2016) Channel Cross-section Data for Powder River between Moorhead and Broadus, Montana from 1975 to 2019 (ver. 3.0, August 2020) Thickness and characteristics of overbank sediment deposited during an extreme flood in May 1978 along Powder River, Montana, USA Sediment Deposition on Floodplains and Point Bars of Powder River in Southeastern Montana from 1979 through 2017