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Rainfall-driven flooding includes changing precipitation projections based on NOAA-MARISA predictive intensity, duration, and frequency curves. For each scenario, cross-referencing related the rainfall intervals to 2-, 5-, 10-, 25-, 50-, 100-, and 500-year recurrence intervals. The most-frequent (least-rare) event that floods the location per given time horizon is mapped. |
| summary:
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Rainfall-driven flooding includes changing precipitation projections based on NOAA-MARISA predictive intensity, duration, and frequency curves. For each scenario, cross-referencing related the rainfall intervals to 2-, 5-, 10-, 25-, 50-, 100-, and 500-year recurrence intervals. The most-frequent (least-rare) event that floods the location per given time horizon is mapped. |
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72223.819286 |
| typeKeywords:
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["ArcGIS Server","Data","Image Service","Service"] |
| description:
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<div style='text-align:Left;'><div><div><p><span>As part of pluvial development for CRMP Phase II, a total of 1830 pluvial models were produced across the 16,600 square miles and 57 counties within the CRMP study area.</span></p><p><span>The scenario-based products are derivatives of the rainfall interval-based products. Phase II of the CRMP has adopted a planning framework encompassing five scenarios, including present (current conditions) and near-future and far-future time horizons with moderate and high projections. </span></p><p><span>Moderate projections represent a “best estimate” for future conditions, while High projections indicate 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.</span></p><p><span>For each scenario, cross-referencing related the rainfall intervals to 2-, 5-, 10-, 25-, 50-, 100-, and 500-year recurrence intervals. The most-frequent (least-rare) event that floods the location per given time horizon is mapped.</span></p><p><span>For more information see CRMP II Appendix A Flood Hazard Data Development at https://www.dcr.virginia.gov/crmp/plan-phase2 </span></p><p><span>and the Pluvial Modeling Technical Memorandum: </span></p><p><span>https://vadcr-frp.s3.amazonaws.com/Pluvial_CRMP/VACRMP_PluvialModelingReport_Final_20240614.pdf</span></p></div></div></div> |
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| catalogPath:
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| title:
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Rainfall_NearFutureMod |
| type:
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Image Service |
| url:
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https://floodmaps.dcr.virginia.gov/arcgis |
| tags:
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["resilience","rainfall","flood","pluvial"] |
| culture:
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en-US |
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| name:
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Rainfall_NearFutureMod |
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| minScale:
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2311162.217155 |
| spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |