Unh-granite-flood, data lifecycle framework & global geospatial identification system. the project addresses all phases of the data lifecycle for selected spatial assets managed by the nh department of environmental services.. Welcome to the new hampshire granit flood insurance study (fis) and digital flood insurance rate maps (dfirms) repository. the purpose of this site is to disseminate digital versions (pdfs) of the fema (federal emergency management agency) fis and dfirm panels to the public., this application uses licensed geocortex essentials technology for the esri ® arcgis platform. all rights reserved.. The digital flood insurance rate map (dfirm) database depicts flood risk information and supporting data used to develop the risk data. the primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. the dfirm database is derived from flood insurance studies (fiss), previously published flood ..., data download. all granit data layers are accessible online at no charge. users may search granit data holdings using the following mechanisms: use the granit data discovery tool (ddt) to search by keyword and/or geography (layers with fgdc-compliant metadata only.); link from layer list by data category (all granit layers.); link from layer list by alphabetical order (all granit layers.)