NOAA NHC - Harvey 2017 Storm Track

The NOAA National Hurricane Center (NHC) publishes advisory bulletins with named storm conditions and expectations, see [1]. We have also downloaded shapefiles for forty-three 5-day forecasts (published from August 17 to August 30) of track line, predicted points, ensemble forecasts envelope, and affected shoreline where applicable. NOAA also publishes the best track for major storms [3]. The \"best track\" is a smoothed version of the advisories track. Web services are also provided by NHC for the advisory points and lines [4] [5].

References
[1] NOAA NHC - Harvey storm advisories [http://www.nhc.noaa.gov/archive/2017/HARVEY.shtml]
[2] NOAA NHC - Harvey 5-day forecasts [https://www.nhc.noaa.gov/gis/archive_forecast_results.php?id=al09&year=2017&name=Hurricane%20HARVEY]
[3] NOAA NHC - best tracks for 2017 storms [https://www.nhc.noaa.gov/data/tcr/index.php?season=2017&basin=atl]
[4] NOAA NHC - Harvey advisory points web service [https://services.arcgis.com/XSeYKQzfXnEgju9o/ArcGIS/rest/services/The_2017_Atlantic_Hurricane_season_(to_October_16th)/FeatureServer/0]
[5] NOAA NHC - Harvey advisory lines web service [https://services.arcgis.com/XSeYKQzfXnEgju9o/ArcGIS/rest/services/The_2017_Atlantic_Hurricane_season_(to_October_16th)/FeatureServer/5]

美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）下辖的国家飓风中心（National Hurricane Center，NHC）会发布包含命名风暴实况与预测研判信息的官方咨询公报，详见参考文献[1]。
本数据集同时收录了2017年8月17日至8月30日发布的43份5天期风暴预报的矢量形状文件（shapefile），数据内容涵盖风暴路径线、预测点位、集合预报包络线以及适用场景下的受影响海岸线。
美国国家海洋和大气管理局还会发布大型风暴的最佳路径数据（best track），详见参考文献[3]。其中，"最佳路径（best track）"是对咨询公报中风暴路径的平滑修正版本。
国家飓风中心还提供了针对咨询公报点位与路径的网络服务接口，详见参考文献[4]与[5]。

参考文献
[1] NOAA国家飓风中心——哈维风暴咨询公报 [http://www.nhc.noaa.gov/archive/2017/HARVEY.shtml]
[2] NOAA国家飓风中心——哈维风暴5天期预报数据 [https://www.nhc.noaa.gov/gis/archive_forecast_results.php?id=al09&year=2017&name=Hurricane%20HARVEY]
[3] NOAA国家飓风中心——2017年风暴最佳路径数据 [https://www.nhc.noaa.gov/data/tcr/index.php?season=2017&basin=atl]
[4] NOAA国家飓风中心——哈维风暴咨询点位网络服务 [https://services.arcgis.com/XSeYKQzfXnEgju9o/ArcGIS/rest/services/The_2017_Atlantic_Hurricane_season_(to_October_16th)/FeatureServer/0]
[5] NOAA国家飓风中心——哈维风暴咨询路径网络服务 [https://services.arcgis.com/XSeYKQzfXnEgju9o/ArcGIS/rest/services/The_2017_Atlantic_Hurricane_season_(to_October_16th)/FeatureServer/5]