MD iMAP: Maryland Shoreline Hazard Index

This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. Each point in Coastal Resiliency Assessment Shoreline Points represents a 250 meter segment of the Maryland coast - including Atlantic - Chesapeake Bay and Coastal Bay shorelines. The Natural Capital Project's Coastal Vulnerability model was used to calculate a Shoreline Hazard Index - representing the relative exposure of each segment to storm-induced erosion and flooding. Inputs to the model included 6 physical variables (geomorphology - elevation - sea level rise - wave power - storm surge height and erosion rates) and 5 habitat types (forest - marsh - dune - oyster reef and underwater grass). Two scenarios of the model were run: one scenario incorporating the protective role of all existing coastal habitats and the other scenario simulating the complete loss of habitats. The difference between the two scenarios indicates the potential magnitude of coastal hazard reduction by habitats at each location. Model results were integrated with MD DNR's Community Flood Risk Areas (March - 2016) in order to highlight areas where hazard reduction by habitats is most likely to benefit at-risk coastal communities.This dataset was produced under award number NA13NOS4190136 from the Office of Ocean and Coastal Resource Management (OCRM) - National Oceanic and Atmospheric Administration (NOAA) through the Maryland Department of Natural Resources Chesapeake and Coastal Services (CCS). The statements - finding and recommendations are those of the authors and do not necessarily reflect the views of NOAA or the U.S. Department of Commerce. The Natural Capital Project (NatCap) - CCS and The Nature Conservancy (TNC) all contributed to the production of this dataset. Last Updated: 3/31/2016Feature Service Link: https://mdgeodata.md.gov/imap/rest/services/Environment/MD_CoastalResiliencyAssessment/FeatureServer ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

本数据集依托马里兰州iMAP（Maryland iMAP）托管服务提供。更多信息请访问http://imap.maryland.gov。

“海岸韧性评估岸线点”数据集中的每个点，均代表马里兰州海岸（包括大西洋岸、切萨皮克湾岸及沿岸海湾岸）一段250米的岸线区段。

本数据集采用自然资本项目（Natural Capital Project）的海岸脆弱性模型，计算得到岸线灾害指数，用以表征各岸线段受风暴诱发的侵蚀与洪水影响的相对暴露程度。该模型的输入参数包含6项物理变量：地貌、高程、海平面上升、波浪能、风暴潮高度及侵蚀速率；以及5类生境类型：森林、沼泽、沙丘、牡蛎礁与海草床。

模型共运行两组情景：一组纳入所有现存海岸生境的防护作用，另一组模拟生境完全丧失的情形。两组情景的结果差值，可反映各区域生境所能实现的海岸灾害削减潜力规模。

模型结果已与马里兰州自然资源部（Maryland Department of Natural Resources, MD DNR）2016年3月发布的社区洪水风险区数据进行整合，以凸显生境灾害削减效益最能惠及沿岸受风险社区的区域。

本数据集由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）海洋与海岸资源管理办公室（Office of Ocean and Coastal Resource Management, OCRM）通过马里兰州自然资源部切萨皮克与沿岸服务中心（Chesapeake and Coastal Services, CCS）资助项目（资助编号NA13NOS4190136）研发制作。

本数据集所含的陈述、研究发现与建议仅代表作者观点，未必反映NOAA或美国商务部的官方立场。自然资本项目（Natural Capital Project, NatCap）、CCS与大自然保护协会（The Nature Conservancy, TNC）均为本数据集的研发制作提供了支持。

最后更新时间：2016年3月31日

要素服务链接：https://mdgeodata.md.gov/imap/rest/services/Environment/MD_CoastalResiliencyAssessment/FeatureServer

附加许可条款：
空间数据及其中所含信息（以下统称"本数据"）按"现状"提供，不提供任何形式的明示、默示或法定担保。用户需自行承担使用本数据的全部质量与性能相关风险。本数据不保证准确性，亦不承担因信赖本数据而产生的任何责任。在任何情况下，马里兰州均不对任何直接、间接、附带、后果性或特殊损害承担责任。马里兰州不对本数据因不准确或数据变更所引发的任何损害或误述承担责任，亦不承担以任何方式或形式维护本数据的义务。本数据可自由分发，但不得修改或删除元数据条目。从本数据衍生的任何数据，均需在元数据中注明来源为马里兰州。