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snippet:
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Mapped weighted wind fetch distances for 1989, 2000, and 2010/2011 and weighted wind fetch distance differences between 1989 and 2000 and 2000 and 2010/2011 within the Upper Mississippi River System
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summary:
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Mapped weighted wind fetch distances for 1989, 2000, and 2010/2011 and weighted wind fetch distance differences between 1989 and 2000 and 2000 and 2010/2011 within the Upper Mississippi River System
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extent:
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[[-93.215762760357,37.0561905163714],[-87.3464008331918,44.9508456585458]]
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accessInformation:
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US Army Corps of Engineers, Upper Mississippi River Restoration Program - Long Term Resource Monitoring element; USGS, Upper Midwest Environmental Sciences Center
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thumbnail:
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thumbnail/thumbnail.png
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typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"]
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description:
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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.
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licenseInfo:
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Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
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catalogPath:
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title:
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umrr_ltrm_wind_fetch_01
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type:
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Map Service
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url:
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tags:
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["Wind fetch","Mississippi River"]
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culture:
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en-US
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name:
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umrr_ltrm_wind_fetch_01
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guid:
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4730419C-2952-416B-A759-38D264991F17
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spatialReference:
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NAD_1983_UTM_Zone_15N
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