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Service Description: The North Atlantic Comprehensive Study (NACCS) performed simulations of 1050 synthetic tropical storms using a fully coupled ADCIRC/WAM/STWAVE with a very high resolution grid primarily covering the Mid Atlantic study area (Cialone, 2015). Simulations were performed for surge only and surge plus tidal cases, with predictions being saved at 18,000 grid locations; 1000 in RI. Return period analyses were performed by USACE for each save point and the predicted water level values at the mean, upper and lower 95% confidence intervals were provided. In the present effort, data from the NACCS RI save points were analysed and spatially scaled to develop a series of projected flood inundation surfaces to visualize multiple storm return periods and sea level rise scenarios. Mean projections were used for events with a return period of 10 years or less, while the upper 95% confidence interval (CI) values were applied to events with return periods 25 years and greater to provide an extra measure of protection. These NACCS-derived flood surfaces show projected water levels that include both storm surge and tidal effects and correct major deficiencies with the widely used bath tub models.
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Copyright Text: URI EDC, RIGIS; Shoreline Change SAMP Team, URI Graduate School of Oceanography; FEMA; NOAA; RI Coastal Resources management Council; URI Coastal Resources Center; URI EDC; URI Ocean Engineering; US Army Corps of Engineers
Spatial Reference:
4326
(4326)
Single Fused Map Cache: false
Initial Extent:
XMin: -71.95380829844501
YMin: 41.27483425852243
XMax: -71.05915782892663
YMax: 41.97468180322633
Spatial Reference: 4326
(4326)
Full Extent:
XMin: -71.90970076599996
YMin: 41.14668665700003
XMax: -71.10211784899997
YMax: 41.87670212000006
Spatial Reference: 4326
(4326)
Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
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Keywords: PLAN,RIGIS,RI,Rhode Island,SLR,sea level rise,inundation,nuisance event,major event,historic event,hurriane of 1938,hurricane carol,hurricane bob,superstorm sandy,USACE,STORMTOOLS
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: false
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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