North Carolina Flood Hazard Areas-Prelim

North Carolina Preliminary Flood Areas: In 2000, the Federal Emergency Management Agency (FEMA) designated North Carolina a Cooperating Technical Partner State, formalizing an agreement between FEMA and the State to modernize flood maps. This partnership resulted in creation of the North Carolina Floodplain Mapping Program (NCFMP). As a CTS, the State assumed primary ownership and responsibility of the Flood Insurance Rate Maps (FIRMs) for all North Carolina communities as part of the National Flood Insurance Program (NFIP). This project includes conducting flood hazard analyses and producing updated, Digital Flood Insurance Rate Maps (DFIRMs). Floodplain management is a process that aims to achieve reduced losses due to flooding. It takes on many forms, but is realized through a series of federal, state, and local programs and regulations, in concert with industry practice, to identify flood risk, implement methods to protect man-made development from flooding, and protect the natural and beneficial functions of floodplains. FIRMs are the primary tool for state and local governments to mitigate areas of flooding. Individual county databases can be downloaded from https://fris.nc.gov The Flood Hazard Area is a polygon feature class representing the area within the flood mapping boundaries defined by the engineering models for the 100 year, 500 year and floodway. The Flood Hazard Area spatial table contains information about the flood hazard within the study area. These zones are used by FEMA to designate the Special Flood Hazard Area (SFHA), identify areas of coastal high hazard flooding, and for insurance rating purposes. These data are the flood hazard areas that are or will be depicted on the FIRM. These zones are currently in the process of local review and revision.北卡罗来纳州初步洪水淹没区：2000年，联邦紧急事务管理局（Federal Emergency Management Agency, FEMA）将北卡罗来纳州指定为合作技术伙伴州（Cooperating Technical Partner State），正式确立了FEMA与该州的合作协议，以推进洪水地图现代化工作。本次合作催生了北卡罗来纳州洪水平原制图计划（North Carolina Floodplain Mapping Program, NCFMP）。作为合作技术伙伴州，该州承担起全美洪水保险计划（National Flood Insurance Program, NFIP）框架下，北卡罗来纳州所有社区的洪水保险费率地图（Flood Insurance Rate Maps, FIRMs）的主要所有权与管理责任。本项目涵盖洪水灾害分析工作，并将制作更新后的数字版洪水保险费率地图（Digital Flood Insurance Rate Maps, DFIRMs）。 洪水平原管理是一项旨在降低洪水灾害损失的系统性工作，其表现形式多元，但需通过联邦、州及地方层面的一系列项目与法规，并结合行业实践，实现识别洪水风险、落实防护措施以规避人工开发区域的洪水威胁，同时保护洪水平原的自然生态与有益功能。FIRMs是州与地方政府开展洪水减灾工作的核心工具。各县的数据库可从https://fris.nc.gov 下载。 洪水灾害区为一类多边形要素类，代表由工程模型划定的100年一遇、500年一遇洪水及行洪道的制图边界范围内的区域。洪水灾害区空间数据表包含研究区域内的洪水灾害相关信息。此类分区被FEMA用于划定特殊洪水灾害区（Special Flood Hazard Area, SFHA）、识别沿海高风险洪水区域，并用于保险费率核定。本数据集包含当前或即将在FIRMs上标注的洪水灾害区，目前这些分区正处于地方审核与修订阶段。