UMRS Floodplain Inundation Depth Differences - Pool 26
Dates
Publication Date
2024-06-05
Start Date
1940-04-01
End Date
2022-09-30
Citation
Van Appledorn, M., Rohweder, J.J., and De Jager, N.R., 2024, Floodplain Inundation Model and Inundation Depths: Upper Mississippi and Illinois Rivers: U.S. Geological Survey data release, https://doi.org/10.5066/P13BRXXJ.
Summary
Floodplain inundation is believed to be the dominant physical driver of an array of ecosystem patterns and processes in the Upper Mississippi River System (UMRS). A geospatial model of floodplain inundation described in Van Appledorn et al. (2021; doi: 10.1002/rra.3628) generates depth time series data for the UMRS floodplain extent. These depth time series data are typically generated from daily water surface elevations from three gaging locations along the mainstem of the Upper Mississippi River in Pool 26. However, due to missing data at the mid-pool gage location at Dixon Landing, this gage was not included in the analysis for 2009 - 2020. To understand the effect of excluding data from the mid-pool gage on modeled depth time series [...]
Summary
Floodplain inundation is believed to be the dominant physical driver of an array of ecosystem patterns and processes in the Upper Mississippi River System (UMRS). A geospatial model of floodplain inundation described in Van Appledorn et al. (2021; doi: 10.1002/rra.3628) generates depth time series data for the UMRS floodplain extent. These depth time series data are typically generated from daily water surface elevations from three gaging locations along the mainstem of the Upper Mississippi River in Pool 26. However, due to missing data at the mid-pool gage location at Dixon Landing, this gage was not included in the analysis for 2009 - 2020. To understand the effect of excluding data from the mid-pool gage on modeled depth time series data, we generated depth time series data from 1990 - 1994 both with and without the gage, and compared the differences in simulated depths at select locations in Pool 26. The p26_depthdiff.csv file comprises the observed differences in depth under the two scenarios. It can be used to apply a post-hoc correction term to any depth time series data generated without the mid-pool gage, to understand the UMRS Floodplain Inundation model's sensitivity to mid-pool surface water elevation fluctuations, and other uses.
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p26_depthdiff.csv
21.88 MB
text/csv
p26_depthdiff.xml Original FGDC Metadata
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24.16 KB
application/fgdc+xml
Purpose
These data were developed to describe hydrologic conditions of non-aquatic areas in the Upper Mississippi River System when joined with appropriate relative elevation and river mile rasters. Examples of suitable uses include stratifying regional sampling efforts or monitoring programs, providing context for interpreting fine-scale studies of local inundation patterns, or development of floodplain functional classes using additional flood metrics.
