{
"name":"NSink/NSinkOutputs",
"title":"NSink/NSinkOutputs",
"type":"Map Service",
"typeKeywords":["ArcGIS Server","Service","Map Service"],
"description":"The Nitrogen Removal Efficiency Mapclassifies individual water features of a watershed based on how efficient they are at removing nitrogen. Efficiency (removal rate) is based primarily on applying relevant hydrographic information to each N-Sink flow path segment to calculate residence time.  Streams, rivers, ponds, lakes and other impoundments are color-coded as low (0% -25%), medium(>25% -50%) or high (>50%) removal. Wetland soils are another prominent watershed feature that removes N, but no single efficiency estimate can be applied to all wetlands since the residence time of a water particle is unique for each flow path. Estimates from the literature and used by N-Sink range from <30% to >80% depending on the length of flow path, using a range of distances from 25\u2013100 feet. Wetland soil removal efficiency thus overlaps the medium and high ranges.  The Nitrogen Transport Efficiency map(aka \u201cHeat Map\u201d)estimates what percentage of N applied to any given location in the watershed is expected to ultimately reach the receiving waters.  It is based on N-Sink\u2019s particle tracking, applied to discrete transport reaches along the flow path and their respective N removal efficiencies.  This tool can be used for a single user-defined point or points:  the user clicks on a location on the map, and the tool generates a flow path from that location allowing the user to see the N sinks that the flow path encounters and to calculate the relative percentage of source N that is removed by these sinks.  Currently, the tool uses an arbitrary N source value of 100 for this calculation. The heat maps are based on an interpolation of N-Sink results for data points calculated in a 100-meter grid.  The Nitrogen Delivery Index is a relative measure of how much N is being delivered to the receiving waters from each location in the watershed. N loading rates taken from the literature are applied to each of the land cover classes of the National Land Cover Dataset (30m resolution), and normalized to a number between 0 and 1. This number is then multiplied by the N Transport Efficiency (above, calculated in a 30m grid), which estimates the amount of the N load that will reach the receiving waters. The result is the Nitrogen DeliveryIndex, a number between 0 and 100 that allows the user to compare the relative contributions of different locations in the watershed to N pollution.",
"extent":[[1875124.9108962996,2085492.179434967],[2292308.0807120814,2369087.410922794]],

"url":"https://clear-gis.uconn.edu/arcgis/rest/services/NSink/NSinkOutputs/MapServer"
}