LTRM/umrrltrm_mean_gs_flood

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Service Description: 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). Here, we present the results of a geospatial surface-water connectivity model in support of ecological investigations fully described in the USGS Open File Report entitled “Indicators of Ecosystem Structure and Function for the Upper Mississippi River System” (De Jager et al., 2018). Briefly, we identified likely instances of floodplain submergence by comparing a daily time series of gage-derived water surface elevations to topo-bathymetric data modified to account for slopes and hydrologic routing. The resulting raster attribute table contains columns for unique characterizations of surface water inundation dynamics (including measures of event frequency, duration, depth, and timing), yearly sums of the number of days a surface was inundated, and a classification of floodplain areas based on average annual duration values. All calculations summarize patterns occurring during 1 April – 30 September from 1972 to 2011. We excluded areas permanently wetted (aquatic areas), surfaces in agricultural production, roads, and developed areas. The data are intended for use in geospatial analyses of UMRS floodplain ecosystem patterns and processes. This particular instance of the data set displays the attribute mean growing season flood duration and the units are in modeled days flooded.

Map Name: UMRR LTRM Mean Growing Season Flood Duration

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Layers:

Alton Pool - Illinois River (0)
Dresden Pool - Illinois River (1)
La Grange Pool - Illinois River (2)
Marseilles Pool - Illinois River (3)
Open River North 1 - Mississippi River (4)
Open River North 2 - Mississippi River (5)
Open River South 1 - Mississippi River (6)
Open River South 2 - Mississippi River (7)
Pool 3 - Mississippi River (8)
Pool 4 - Mississippi River (9)
Pool 5 - Mississippi River (10)
Pool 5A - Mississippi River (11)
Pool 6 - Mississippi River (12)
Pool 7 - Mississippi River (13)
Pool 8 - Mississippi River (14)
Pool 9 - Mississippi River (15)
Pool 10 - Mississippi River (16)
Pool 11 - Mississippi River (17)
Pool 12 - Mississippi River (18)
Pool 13 - Mississippi River (19)
Pool 14 - Mississippi River (20)
Pool 15 - Mississippi River (21)
Pool 16 - Mississippi River (22)
Pool 17 - Mississippi River (23)
Pool 18 - Mississippi River (24)
Pool 19 - Mississippi River (25)
Pool 20 - Mississippi River (26)
Pool 21 - Mississippi River (27)
Pool 22 - Mississippi River (28)
Pool 24 - Mississippi River (29)
Pool 25 - Mississippi River (30)
Pool 26 - Mississippi River (31)

Description:

Copyright Text: U.S. Army Corps of Engineer’s Upper Mississippi River Restoration Program

Spatial Reference: 26915 (26915)

Single Fused Map Cache: false

Initial Extent:

Full Extent:

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true

Child Resources: Info Dynamic Layer

Supported Operations: Export Map Identify QueryDomains Find Return Updates Generate KML

LTRM/umrrltrm_mean_gs_flood_dur (MapServer)