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Service Description: Wind fetch is defined as the unobstructed distance that wind can travel over water in a constant direction. Fetch is an important characteristic of open water because longer fetch can result in larger wind-generated waves. The larger waves, in turn, can increase shoreline erosion and sediment re-suspension. Wind fetches were calculated using the wind fetch model available from (http://www.umesc.usgs.gov/management/dss/wind_fetch_wave_models_2012update.html) for aquatic areas within the Upper Mississippi River System. This toolbox calculates effective wind fetch using the recommended procedure of the Shore Protection Manual (USACE 1984). A baseline conditions assessment of wind fetch was conducted to assist the Upper Mississippi River Restoration program's Long Term Resource Monitoring element (LTRM) in identifying areas within the river system where excessive wind fetch could be a problem. This was accomplished using three separate years of land cover/land use data developed by the LTRM (1989, 2000, and 2010/2011). Wind fetch from 36 directions (10 degree increments) was developed and then a weighted wind fetch output was developed. Additionally, separate outputs were developed calculating the difference of weighted wind fetch between 1989 and 2000, and also the difference between 2000 and 2010/2011.

Map Name: UMRS weighted wind fetch

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Layers:

• Weighted wind fetch distances for 2010/2011 (0)
  • Boundary (1)
  • Footprint (2)
  • fetw_2010 (3)
• Weighted wind fetch distances for 2000 (4)
  • Boundary (5)
  • Footprint (6)
  • fetw_2000 (7)
• Weighted wind fetch distances for 1989 (8)
  • Boundary (9)
  • Footprint (10)
  • fetw_1989 (11)
• Differences in weighted wind fetch distances between 2000 and 2010/2011 (12)
  • Boundary (13)
  • Footprint (14)
  • fetd_10_00 (15)
• Differences in weighted wind fetch distances between 1989 and 2000 (16)
  • Boundary (17)
  • Footprint (18)
  • fetd_00_89 (19)

Description:

Copyright Text: US Army Corps of Engineers, Upper Mississippi River Restoration Program - Long Term Resource Monitoring element; USGS, Upper Midwest Environmental Sciences Center

Spatial Reference: 26915  (26915)


Single Fused Map Cache: false

Initial Extent:

XMin: 93025.46051168127
YMin: 4369705.781998631
XMax: 1328026.539488322
YMax: 5000457.406025328
Spatial Reference: 26915  (26915)

Full Extent:

XMin: 482980
YMin: 4112940
XMax: 947060
YMax: 4977490
Spatial Reference: 26915  (26915)

Units: esriMeters

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Title:
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Comments: test
Subject: test
Category:
Keywords: Wind fetch,Mississippi River
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TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 1000

MaxImageHeight: 4096

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Supported Query Formats: JSON, AMF, geoJSON

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Max Scale: 0

Supports Datum Transformation: true



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