{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "This layer shows where marsh is predicted to migrate after a 4 foot sea level rise. This will allow planners and policy makers to target these areas for conservation efforts.", "description": "

There are four marsh migration models incorporated into this layer. NOAA generated raster data layers using three models (SLAMM, InVEST, NOAA). This raster showed where marsh migration was predicted to occur for a water level rise of four feet according to each of these three models. The Evolution of Tidal Marsh (ETM) marsh migration model which VIMS produced was then overlaid on top of this. The ETM rasters represent successive tidal ranges of two feet of elevation, incremented by 0.5 feet, i.e. 0-2 ft, 0.5-2.5 ft, 1-3 ft, etc.). From the ETM analysis, the tidal range layer was used which had a 4 foot water rise as a midpoint in the tidal range. The raster from ETM was overlaid on the raster from the NOAA analysis. Raster cells were classified by the number of models overlaid on a given cell. Cells overlaid by all four models were given a score of 4, cells overlaid by three models were given a score of 3, cells overlaid by two model were given a score of 2, and cells overlaid by one model were given a score of 1. High Intensity Developed land and Medium Intensity Developed land from the National Land Cover Dataset was removed from consideration by erasing this from the dataset.<\/SPAN><\/P><\/DIV><\/DIV>", "summary": "This layer shows where marsh is predicted to migrate after a 4 foot sea level rise. This will allow planners and policy makers to target these areas for conservation efforts.", "title": "MarshMigrationCorridors_Overlay_4ft_utm18", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "", "licenseInfo": "", "portalUrl": "" }