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Max extent of inundation based on low water imagery to determine permanent open water in Hatchie-Loosahatchie Planning reach [U.S. Fish and Wildlife Service]

{'name': 'Department of the Interior'} Full Details

Full Details

Title
Max extent of inundation based on low water imagery to determine permanent open water in Hatchie-Loosahatchie Planning reach [U.S. Fish and Wildlife Service]
Description
Maximum extent of inundation observed on 2020-08-23 2020-10-07 and 2020-10-17 based on Sentinel 2 imagery. These data are intended to represent the approximately extent of permanent open waterbodies in the US Army Corps of Engineers Hatchie-Loosahatchie Planning Area.Inundation Extent was developed using techniques presented in Allen (2016). Allen, Y. 2016. Landscape Scale Assessment of Floodplain Inundation Frequency Using Landsat Imagery. River Research and Applications 32:1609-1620.====================================================In large river ecosystems, the timing, extent, duration and frequency of floodplain inundation greatly affect the quality of fish and wildlife habitat and the supply of important ecosystem goods and services. Seasonal high flows provide connectivity from the river to the floodplain, and seasonal inundation of the floodplain governs ecosystem structure and function. River regulation and other forms of hydrologic alteration have altered the connectivity of many rivers with their adjacent floodplain - impacting the function of wetlands on the floodplain and in turn, impacting the mainstem river function. Conservation and management of remaining floodplain resources can be improved through a better understanding of the spatial extent and frequency of inundation at scales that are relevant to the species and/or ecological processes of interest. Spatial data products describing dynamic aspects floodplain inundation are, however, not widely available. This study used Landsat imagery to generate multiple observations of inundation extent under varying hydrologic conditions to estimate inundation frequency. These data were composited into a landscape mosaic to depict relative inundation frequency over the entire Southeast Region. An analytical methodology is presented in the related publication for linking the observed inundation extent and frequency with long-term gage measurements so that the outcomes may be useful in defining meaningful critical thresholds for a variety of floodplain dependent organisms as well as important ecological processes
Creator
{'name': 'Department of the Interior'}
Temporal Coverage
Last modified 2022-04-01
Date Issued
2021-11-16
Access Rights
Public
Format
File
Language
English
Date Added
August 28, 2025

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  • Citation
    {'name': 'Department of the Interior'} (2021). Max extent of inundation based on low water imagery to determine permanent open water in Hatchie-Loosahatchie Planning reach [U.S. Fish and Wildlife Service]. . https://gis-fws.opendata.arcgis.com/maps/fws::max-extent-of-inundation-based-on-low-water-imagery-to-determine-permanent-open-water-in-hatchie-loosahatchie-planning-reach (web service)
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