20250111224514001.0FALSERainfall_NearFutureHigh.tiffile://D:\gis_data\rainfall_grad\Rainfall_NearFutureHigh.tifLocal Area Network002-8705215.372103-8357693.9090604365684.9106714777223.6457491ProjectedGCS_WGS_1984Linear Unit: Meter (1.000000)WGS_1984_Web_Mercator_Auxiliary_Sphere<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>8TRUELZW1TIFFTRUEdiscreteunsigned integer0ProjectRaster D:\gis_data\rainfall_grad\Unprojected\Rainfall_NearFutureHigh.tif D:\gis_data\rainfall_grad\Rainfall_NearFutureHigh.tif PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0]] "Nearest neighbor" "3.04800609601219 3.04800609601219" WGS_1984_(ITRF00)_To_NAD_1983 # PROJCS["NAD_1983_StatePlane_Virginia_South_FIPS_4502_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",11482916.66666666],PARAMETER["False_Northing",3280833.333333333],PARAMETER["Central_Meridian",-78.5],PARAMETER["Standard_Parallel_1",36.76666666666667],PARAMETER["Standard_Parallel_2",37.96666666666667],PARAMETER["Latitude_Of_Origin",36.33333333333334],UNIT["Foot_US",0.3048006096012192]] NO_VERTICAL202501112245140020260203144238001500000005000ItemDescriptionMicrosoft Windows Server 2016 Technical Preview Version 10.0 (Build 20348) ; Esri ArcGIS 13.3.0.52636Rainfall-Driven Flood Extents, Near Future High Scenario1-78.200280-75.07844239.38675736.471431This data was created to support Phase II of the Virginia CRMP. The CRMP and its products are designed to be a trusted resource to assist government entities in making evidence-based decisions using high-quality flood resilience data. CRMP hazard data represents the best available information related to coastal Virginia’s major flood hazard sources and should be used to inform local and regional flood resilience planning and decision-making. <DIV STYLE="text-align:Left;">Virginia Coastal Resilience Master Plan (CRMP) Graduated Rainfall-Driven Flood Extents for the Near Future High planning scenario. Rainfall-driven flooding (also known as pluvial flooding) occurs when intense or prolonged rainfall exceeds the land’s ability to drain or absorb water, leading to inundation of normally dry lands. Rainfall-driven flood models can indicate areas prone to rainfall-driven flooding that are not always reflected in regulatory flood maps. This dataset depicts the extent of potential rainfall-driven flooding under various flood conditions. 10-foot resolution raster data is classified and colored to represent the extent of the most frequent (least-rare) floods that may impact a given area. The included flood conditions represent a range of rainfall amounts derived from statistical analysis of historic events. The rainfall amounts and their resultant flooding extents are described in terms of their relative annual exceedance probability (AEP), which represents the percentage chance that a given flood magnitude will occur in a given year. The specific flood conditions included are: 50% AEP, 20% AEP, 10% AEP, 4% AEP, 2% AEP, 1% AEP, and 0.2% AEP. In the CRMP, planning scenarios are defined by their time horizon and projection range, representing future conditions and the uncertainty inherent in climate forecasts that project them. This dataset contains information for the Near Future time horizon, meaning it is suitable for planning through the next 35 years and is based on climate data most relevant to the period between 2030 and 2060. Within this time horizon, this dataset shows a High climate change projection, indicating a less likely but possible future with higher sea level rise and precipitation estimates, which may be favored for use in decisions with little tolerance for risk.The CRMP’s rainfall-driven flood modeling considered future precipitation projections based on the Mid-Atlantic Regional Integrated Sciences and Assessments (MARISA) predictive intensity, duration, and frequency curves for Virginia. Complete documentation of the source data and production process is provided in the Pluvial Modeling Final Report (Dewberry 2024, Addendum A).Raster values are classified as follows: 40 = 50% AEP, 50 = 40% AEP, 60 = 10% AEP, 70 = 4% AEP, 80 = 2% AEP, 90 = 1% AEP, 100 = 0.2% AEP, 0/Null = None.Related resources include the VA CRMP Master Plan report (https://www.dcr.virginia.gov/crmp/) and Coastal Resilience Web Explorer (https://www.dcr.virginia.gov/crmp/cr-web-explorer). For questions or additional information, please contact Flood.Resilience@dcr.virginia.gov.</DIV>FloodingFlood HazardCoastal ResilienceVirginiaDCRCRMPClimate ChangeFuture ConditionsRainfallPluvialGraduated FloodplainPrecipitationNear Future HighThis dataset was created by the Virginia Department of Conservation and Recreation (DCR) in 2024. DCR will review and make appropriate adjustments to this data with each update of the CRMP.<DIV STYLE="text-align:Left;">The analysis is based on the best available models, datasets, and future condition projections when the data were created. With all models and forward-looking data, uncertainty and constraints exist. Future conditions data reflect possible scenarios that can be used to inform an understanding of potential flood risk, which can be incorporated into decision-making alongside other relevant factors.Flood hazard models are simplified representations of complex and interconnected natural and manmade systems. Users should note that the following factors are not included in the flood hazard models: stormwater infrastructure, narrow floodwalls, compound flooding, erosion, and groundwater levels.</DIV>Raster DatasetdatasetEPSG6.18.3(9.3.1.2)210-8705215.372103 4365684.910671-8705215.372103 4777223.645749-8357693.909060 4777223.645749-8357693.909060 4365684.910671-8531454.640582 4571454.2782101140163.0480061350193.048006Band_1100.00000040.000000820260203