Description: The Alaska Department of Fish and Game's (ADF&G) Anadromous water bodies data is derived from the ADF&G's GIS shape files for the "Catalog of Waters Important for Spawning, Rearing or Migration of Anadromous Fishes" (referred to as the "Catalog") and the "Atlas to the Catalog of Waters Important for Spawning, Rearing or Migration of Anadromous Fishes" (referred to as the "Atlas"). It is produced for general visual reference and to aid users in generating various natural resource analyses and products. The shape files depict the known anadromous fish bearing lakes and streams within Alaska (from the mouth to the known upper extent of species usage). It incorporates data from a variety of sources including: USGS Digital Line Graph (DLG) and National Hydrography Dataset (NHD) hydrography data; Alaska Department of Natural Resources hydrography layer; and ADF&G shape files for the "Atlas" and "Catalog". ADF&G updates the Anadromous Streams data regularly. Note that stream numbers, locations, extent of cataloged habitat or species utilization of a given stream may change from year to year. Data for the shape files are current as of the 2017 revision of the "Atlas to the Catalog of Waters Important for the Spawning, Rearing or Migration of Anadromous Fishes" and the "Catalog of Waters Important for the Spawning, Rearing or Migration of Anadromous Fishes" effective June 1, 2017. This particular data layer is for the Southeastern Region of Alaska.
Name: mean high water (15.4 feet, modeled from 2013 lidar)
Display Field: Elevation
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: This shapefile represents the mean high water level of the Juneua study area based on LiDAR-derived surface elevation data of the Juneau LiDAR dataset. The horizontal datum for this dataset is NAD83(2011), the vertical datum is NAVD88, Geoid 12a (Adjusted to MLLW* see use limitations), and the data is projected in Alaska State Plane Zone 1. Horizontal units are in US Survey Feet and vertical units are in US Survey Feet. WSI collected the Juneau LiDAR dataset for the City and Borough of Juneau between 05/08/2013 - 06/11/2013.
Description: This shapefile represents the water's edge breaklines of the Juneau LiDAR study area. Water boundary polygons were developed using an algorithm which weights LiDAR-derived slopes, intensities, and return densities to detect the water's edge. Elevation values were then assigned to the water's edge line from the LiDAR data. The breaklines were enforced in the hydroflattened bare earth model. The horizontal datum for this dataset is NAD83(2011), the vertical datum is NAVD88, Geoid 12a (Adjusted to MLLW* see use limitations), and it is projected in Alaska State Plane Zone 1. Horizontal units are in US Survey Feet and vertical units are in US Survey Feet. WSI collected the Juneau LiDAR data for the City and Borough of Juneau between 05/08/2013 - 06/11/2013.