Ocean Hazards Database (OHD) for the State of Hawaii Statewide Coastal Highway Program Report

Summary: This Ocean Hazards Database (OHD) contains all relevant geographic information system (GIS) layers, maps, measures, interpretations, and rankings from the Ocean Hazards Classification Scheme (OHCS) assessment of 302 mileposts and points of interest across coastal state routes in Hawaii. As a part of the State of Hawaii Department of Transportation Statewide Highway Shoreline Program Report, the OHCS assesses and ranks shoreline roadway vulnerability to historical sea-level rise rates (in/yr), projected sea-level rise rates by 2050 and 2100 (in/yr), mean tidal ranges (ft), maximum annually recurring peak wave periods (sec) and significant wave heights (ft), mean projected shoreline change rates (ft/yr) and coastal armoring, historical and hypothetical tsunami flow depths (ft), and hypothetical category 1-4 storm surge inundation heights (ft). OHCS ranking criteria and methods are described in chapter 3 of the State of Hawaii Statewide Coastal Highway Program Report (2019). OHD materials are organized into coastal highway digital elevation models, ocean hazard map packages, ocean hazard supplementary maps, and ocean hazard supplementary tables. How to Download: Digital Elevation Models (DEM) '.mpk' contains GIS layers for nearshore topographic and bathymetric elevations on the islands of: Hawaii - http://dx.doi.org/10.17632/6dd26tt5n9 Maui - http://dx.doi.org/10.17632/zdmdy8jtsw Molokai - http://dx.doi.org/10.17632/vcr9rg5ttm Oahu - http://dx.doi.org/10.17632/xh84bv6y5c Kauai - http://dx.doi.org/10.17632/vwmprpp7xr Supplementary Maps '.tiff' for 302 mileposts contain image files of: Nearshore Transects - http://dx.doi.org/10.17632/h29374xc3g Offshore Transects - http://dx.doi.org/10.17632/b4w7c9y96s Sea-level Rise Inundation 1ft, 2ft, 3ft - http://dx.doi.org/10.17632/xf33cd2sd5 Sea-level Rise Inundation at 2050 - http://dx.doi.org/10.17632/nnb533964z Sea-level Rise Inundation at 2100 - http://dx.doi.org/10.17632/kfb838gzr7 Maximum Annually Recurring Wave Characteristics - http://dx.doi.org/10.17632/4f4sb8j3zc Projected Shoreline Change - http://dx.doi.org/10.17632/9krv2pj3bw Storm Surge Inundation - http://dx.doi.org/10.17632/kp8k3cdxxx Map Packages '.mpk', below, contain GIS layers and mapping layouts for the assessment and projection of sea-level rise inundation, maximum annually recurring wave characteristics, projected shoreline change, storm surge inundation, and offshore bathymetry. Supplementary Tables '.pdf', below, contain OHCS measured results and rankings for 302 mileposts and points of interest across coastal state routes in Hawaii. Representative dataset references are included in table footnotes. This project was funded by the Hawaii Department of Transportation, HWY-06-16, entitled "Statewide Highway Shoreline Protection Program Study Update."

## 数据集概述
本海洋灾害数据库（Ocean Hazards Database, OHD）收录了夏威夷沿海州级公路沿线302个公路里程碑及兴趣点的海洋灾害分类体系（Ocean Hazards Classification Scheme, OHCS）评估所需的全部相关地理信息系统（Geographic Information System, GIS）图层、地图、评估指标、解读结果与分级结果。
作为夏威夷州交通部全州公路岸线项目报告的组成部分，OHCS针对多项指标对沿岸道路的脆弱性开展评估与分级：历史海平面上升速率（单位：英寸/年）、2050年及2100年预测海平面上升速率（单位：英寸/年）、平均潮差（单位：英尺）、年度最大重现期波浪峰值周期（单位：秒）与有效波高（单位：英尺）、平均预测岸线变化速率（单位：英尺/年）及海岸防护工程情况、历史与假想海啸流动深度（单位：英尺），以及1至4级假想风暴潮淹没高度（单位：英尺）。
OHCS的分级标准与评估方法详见《夏威夷州全州沿海公路项目报告（2019）》第三章。OHD的资料分为四类：沿海公路数字高程模型、海洋灾害地图包、海洋灾害补充地图及海洋灾害补充表格。

## 下载方式
数字高程模型（Digital Elevation Model, DEM）格式为'.mpk'的文件包含以下各岛的近岸地形与水深地形GIS图层：
- 夏威夷岛：http://dx.doi.org/10.17632/6dd26tt5n9
- 毛伊岛：http://dx.doi.org/10.17632/zdmdy8jtsw
- 莫洛凯岛：http://dx.doi.org/10.17632/vcr9rg5ttm
- 瓦胡岛：http://dx.doi.org/10.17632/xh84bv6y5c
- 考艾岛：http://dx.doi.org/10.17632/vwmprpp7xr

针对302个公路里程碑的补充地图（格式为'.tiff'）包含以下图像文件：
- 近岸断面：http://dx.doi.org/10.17632/h29374xc3g
- 离岸断面：http://dx.doi.org/10.17632/b4w7c9y96s
- 1英尺、2英尺、3英尺海平面上升淹没场景：http://dx.doi.org/10.17632/xf33cd2sd5
- 2050年海平面上升淹没场景：http://dx.doi.org/10.17632/nnb533964z
- 2100年海平面上升淹没场景：http://dx.doi.org/10.17632/kfb838gzr7
- 年度最大重现期波浪特征：http://dx.doi.org/10.17632/4f4sb8j3zc
- 预测岸线变化：http://dx.doi.org/10.17632/9krv2pj3bw
- 风暴潮淹没：http://dx.doi.org/10.17632/kp8k3cdxxx

下述格式为'.mpk'的地图包包含用于海平面上升淹没、年度最大重现期波浪特征、预测岸线变化、风暴潮淹没及离岸水深地形的评估与预测的GIS图层及制图布局。
下述格式为'.pdf'的补充表格包含夏威夷沿海州级公路沿线302个公路里程碑及兴趣点的OHCS实测结果与分级结果。表格脚注中收录了代表性数据集的引用信息。

本项目由夏威夷州交通部资助，项目编号为HWY-06-16，课题名称为“全州公路岸线防护项目研究更新”。