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Inundation metrics by 10-km bend, Lower Missouri River Floodplain

Metadata Updated: October 30, 2025

This is a shapefile of points summarizing inundation metrics and geomorphic variables for bends in the downstream-most 800 km of the Lower Missouri River. Points are located at the centroids of 10-km bends of the river. The metrics were developed through analysis of inundation maps calculated from a 1-dimensional hydraulic model for the channel and floodplain. Water-surface elevations were extended across the valley bottom and intersected with lidar-derived floodplain topography to calculate inundation depth and extent on a daily basis. Detailed methods are documented in Bulliner and others (2017). We evaluated longitudinal spatial variation by aggregating floodplain inundation estimates by Thiessen polygons centered at 1-km address points along the Lower Missouri River channel navigation line and extending to the valley walls. The Thiessen polygons sample the area of the floodplain so that the attributes within the polygon are geometrically closest to the address point. These data were then aggregated into 10-km reaches to associate inundation metrics (in average hectare-days per year) with potential explanatory variables that had been developed in previous studies (Jacobson and others, 2017; Jacobson and others, 2018). The explanatory variables in the dataset quantify hypothesized physical controls on inundation at the 10-km reach scale; that is, they do not include fine-scale details of bathymetry or topography. We summarized the inundation metrics for the existing conditions, wherein only floodplain area river-ward of the levees (batture area) is inundated, and for the entire floodplain, for both historical daily discharges (1930 – 2012) and for the future-climate-adjusted daily discharge scenario for the same time series. The data are summarized as point attributes in the released shapefile. Bulliner, E.A., Lindner, G., Bouska, K., Jacobson, R.B., and Paukert, C., 2017, Science to Inform Management of Floodplain Conservation Lands under Non-Stationary Conditions U.S. Geological Survey Data Release, https://doi.org/10.5066/F7HM56KG. Jacobson, R.B., Elliott, C.M., and Bulliner, E.A., 2017, Missouri River bend classification data sets: U.S. Geological Survey Data Release, U.S. Geological Survey data release, https://doi.org/10.5066/F7FF3R9D. Jacobson, R.B., Colvin, M.E., Bulliner, E.A., Pickard, D., and Elliott, C.M., 2018, Bend-scale geomorphic classification and assessment of the Lower Missouri River from Sioux City, Iowa, to the Mississippi River for application to pallid sturgeon management 2018-5069, 46 p., https://doi.org/10.3133/sir20185069.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date September 14, 2025
Metadata Updated Date October 30, 2025

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date September 14, 2025
Metadata Updated Date October 30, 2025
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/usgs-63efeb3dd34efa0476b03960
Data Last Modified 2023-02-21T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 21170043-ea2d-4596-acb9-5f93d4aea4d2
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial -95.463199999999, 38.5266, -90.116199999997, 40.1924
Source Datajson Identifier True
Source Hash c3e62783ffdb2bd3aaf1903bc56d5d0cfb633524e6719dfc881fafaa500ee862
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -95.463199999999, 38.5266, -95.463199999999, 40.1924, -90.116199999997, 40.1924, -90.116199999997, 38.5266, -95.463199999999, 38.5266}

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